by - usgsupper alamosa river, southwestern colorado by dana j. bove1 , anna b.wilson1 , thomas h....

38
U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Geology, alteration, and rock and water chemistry of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, southwestern Colorado By Dana J. Bove 1 , Anna B.Wilson 1 , Thomas H. Barry2 , Ken Hon 1 , Jeffrey Kurtz 3 , R.E. Van Loenen 1 , and W.S. Calkin4 Open-File Report 96-039 1996 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been used by the USGS and have been successfully imported into various software programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any secific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith. 'U.S. Geological Survey, Denver, Colorado 2 Auburn University, Auburn, Georgia 3 Geostat Systems, Golden, Colorado 4Golden, Colorado

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Page 1: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

Geology, alteration, and rock and water chemistryof the Iron, Alum, and Bitter Creek areas,

Upper Alamosa River, southwestern Colorado

By

Dana J. Bove 1 , Anna B.Wilson1 , Thomas H. Barry2 , Ken Hon 1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4

Open-File Report 96-039

1996

This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been used by the USGS and have been successfully imported into various software programs, no warranty, expressed or implied, is made by the USGS as to how successfully or accurately the data can be imported into any specific application software running on any secific hardware platform. The fact of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in connection therewith.

'U.S. Geological Survey, Denver, Colorado 2Auburn University, Auburn, Georgia 3Geostat Systems, Golden, Colorado 4Golden, Colorado

Page 2: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

FIGURES

1. Plot showing the pH of stream and spring water samples and the associated rockalteration assemblage that largely influences water chemistry. Open diamond indicates the median pH value. Alteration assemblages defined on plate 5.

2. Plot showing the conductivity of stream and spring water samples and the associated rock alteration assemblage that largely influences water chemistry. Open diamond indicates the geometric mean. Alteration assemblages defined on plate 5.

3. Plot showing total iron analyses of stream and spring water samples and the associated rock alteration assemblage that largely influences water chemistry. Open diamond indicates the geometric mean. Alteration assemblages defined on plate 5.

4. Plot showing aluminum analyses of stream and spring water samples and the associated rock alteration assemblage that largely influences water chemistry. Open diamond indicates the geometric mean. Alteration assemblages defined on plate 5.

5. Plot showing sulfate analyses of stream and spring water samples and the associated rock alteration assemblage that largely influences water chemistry. Open diamond indicates the geometric mean. Alteration assemblages defined on plate 5.

6. Plot showing total of base metals (Zn+Cu+Cd+Ni+Co+Pb in ppm; Ficklin metals) from stream and spring water samples and the alteration assemblage that largely influences water chemistry. Open diamond indicates the geometric mean. Open diamond

7. Ficklin plot showing variations in aqueous base metals concentrations (Zn+Cu+Cd+Ni+Co+Pb) for waters within the study area.

TABLES

1. Original geochemical data fro rock samples taken in the Iron, Alum, and Bitter Creek study area. Analyses include major and trace elements with sulfur, CO2 and H2O

2. Inductively coupled plasma-atomic emission spectrometry (ICP-AES) data for rock samples taken in the Iron, Alum, and Bitter Creek study area.

3. Stream, spring, and adit water geochemical data from sites in the Iron, Alum, and Bitter Creek study area.

4. Water sample map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado Dana J. Bove, Thomas H. Barry, and Anna B. Wilson

Page 3: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

PLATES

1. Geologic map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado Dana J. Bove, Anna B. Wilson, Jeffrey Kurtz, Ken Hon, and R.E. Van Loenen

2. Rock sample sites in the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado Dana J. Bove, Anna B. Wilson, Ken Hon, Jeffrey Kurtz, and R.E. Van Loenen

3. Alteration assemblage data for selected rock sample sites in the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado Dana J. Bove, Anna B. Wilson, Ken Hon, Jeffrey Kurtz, and R.E. Van Loenen

4. Water sample map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado Dana J. Bove, Thomas H. Barry, and Anna B. Wilson

5. Alteration map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado, with pH and conductivity dataDana J. Bove, Thomas H. Barry, Anna B. Wilson, Jeffrey Kurtz, Ken Hon, and R.E. Van Loenen

6. Alteration map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado, with selected water geochemical dataDana J. Bove, Thomas H. Barry, Anna B. Wilson, Jeffrey Kurtz, Ken Hon, and R.E. Van Loenen

7. Alteration map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern Colorado, with Ficklin plot dataDana J. Bove, Thomas H. Barry, Anna B. Wilson, Jeffrey Kurtz, Ken Hon, and R.E. Van Loenen

8. Rock and water geochemical data from the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern ColoradoDana J. Bove, Anna B. Wilson, W.S. Calkin, Thomas H. Barry, Jeffrey Kurtz, Ken Hon, and R.E. Van Loenen

9. Sulfate, aluminum, and iron loading map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern ColoradoDana J. Bove, Anna B. Wilson, Thomas H. Barry, Ken Hon, Jeffrey Kurtz, and R.E. Van Loenen

11

Page 4: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

10. Copper, zinc, and manganese loading map of the Iron, Alum, and Bitter Creek areas, Upper Alamosa River, Southwestern ColoradoDana J. Bove, Anna B. Wilson, Thomas H. Barry, Ken Hon, Jeffrey Kurtz, and R.E. Van Loenen

in

Page 5: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

INTRODUCTION

The geology of altered and mineralized areas in the vicinity of the Summitville Mine, in the southwest San Juan Mountains, Colorado, have been studied to understand contributions of individual drainages to downstream acid and metal contamination in the Alamosa River. Studies in these largely unmined and essentially anthropomorhically undisturbed areas also offer a unique opportunity to understand the interrelationship between specific rock and alteration types and the local stream and spring geochemistry. As implied by the creek names, water in the Iron, Alum, and Bitter Creek (IABC) study area can be highly degraded (pH <2 and conductivity > 2,000) and drains from intensely altered and highly pyritized basins.

Field work for this study was conducted mainly during July and August of 1994; however, some geologic mapping was undertaken during the summer and fall of 1993. Published reports on the study area include: Bove, 1994; Bove and others 1995; Calkin, 1967; Kirkham and others, 1995; Lipman, 1974; Miller and McHugh, 1994; and Barry, in press.

The purpose of this report is to present data with related methodologies from our ongoing study in the following tables (table 1-4), maps (Plates 1-10), and figures (figs. 1-6), and to briefly summarize the relationship between geology, alteration and water geochemistry as discerned by this data.

METHODOLOGY

Rock sample geochemical data by various analytical methods are presented in tables 1 and 2. Seventy-two samples were analyzed for 10 major elements, 6 trace elements, H2O+ and H2O", and CO2 (table 1); sulfur determinations were made on 15 of these samples (table 1). Major elements were analyzed by wavelength-dispersive X-ray fluorescence (Taggart and others, 1987). Trace elements (Rb, Sr, Zr, Y, Nb, and Ba) were determined by energy dispersive X-ray fluoresence (Johnson and King, 1987). Total H2O was calculated by combustion at 950 °C with Karl Fisher titration (Jackson and others, 1987) of H2O; H2O"(moisture) was determined by the sample procedure at 110°C and H2O+ was determined by difference (Jackson and others, 1987). Total S was analyzed for using a Leco SRI32 automated sulfur analyser. In addition, 113 rock samples were analyzed utilizing 40-element inductively coupled plasma-atomic emission spectrometry (ICP-AES; Lichte and others, 1987)(table 2). Rock sample site locations are shown on Plate 2.

Rock geochemical data for over 1,900 samples collected in the study area by Inspiration Development Company during the late 1970's is presented on Plate 8. Samples were analyzed by emission spectrometry in Inspiration Development S afford Talco Laboratory in 1979. Data from this study was generously provided by W.S. Calkin, who has spent many years studying the geology and mineralization of the area.

Due to the difficulty of accurately identifying alteration mineral assemblages in the field, 242 whole rock samples were analyzed by X-ray diffraction (XRD) utilizing a Phillips APD- 3600 diffractometer equipped with MDI Inc. JADE software. Coded alteration assemblage information for individual rock samples is shown on Plate 3. The term "sericite" as used in this study is defined as a fine-grained (typically < 10 microns), highly birefringent micaceous

Page 6: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

mineral. A review of mineralogical work and XRD data on sericite polytypes can be found in Brindley (1980) and Srodon and Eberl (1984).

A total of 60 water samples (Plate 4) were collected during August 9-31, 1995, including 30 spring samples, 28 stream samples, and 2 adit samples; more detailed methodology is described by Barry (Auburn University, Alabama, masters thesis, in press). Spring samples were taken at the uppermost extent of the tributary where seepage first appears. Stream samples were collected as close to the center of the primary flow as possible, and adit samples were taken as near as possible to the primary emanation. Water samples were collected in polyethylene bottles that were previously rinsed in 10 percent HCL. Six bottles of sample water were collected at each site. These included 1) a 500-mL raw unacidified sample, 2) and 3) two acidified 125-mL samples of raw and filtered water, 4) a 60-mL filtered and acidified sample for Fe+2 analysis,5) a 60-mL filtered and unacidified sample, and 6) a 60-mL H-O isotope sample (neither filtered or acidified). Filtered samples passed through a 0.45 /zm filter, and acidified samples had __acid added to pH < 2.

At each site, pH, temperature, conductivity, and dissolved oxygen were measured and recorded. At the beginning of each day, the pH meter (Orion model 230A) and the conductivity pen (Oakton TDS TESTR with ATC) were calibrated; they were also checked and calibrated (if necessary) at each sample site with known solutions. Water temperature was measured by a standard conventional thermometer, and dissolved oxygen content was determined colorometrically.

Anions were determined on the raw unacidified samples using an ion chromatograph (Fishman and Pyen, 1979) and Fe+2 analysis was conducted using a Hach DR/2000 spectrophometer. Major, minor, and trace elements were determined according to standard methods of the USGS utilizing inductively coupled plasma-atomic emission spectrometry (ICP- AES; Lichte and others, 1987) and inductively coupled plasma-mass spectrometry (ICP-MS).

Total aqueous metal load values as shown in Plates 9 and 10 is a method of measuring the cumulative effects of metals on streams. Load is the total metal concentration times the stream flow. To be truly quantitative, the stream chemistry samples and streamflow measurements should be taken simultaneously. However, stream flow rates for this study were based on estimated measurements by Robert Kirkham (unpublished data) of the Colorado State Geological Survey during field studies from late July to late August 1993; unfortunately, estimates made during the sampling period in 1994 have been determined to be unreliable. Careful comparison of the rainfall for the years 1993 and 1994 indicates that the flow rates were likely to be similar during both years. Consequently, metal loading values from this study are not rigorously comparable as the stream flow was measured the previous year (1993), and the values should be used in relative, not absolute, terms. Even with the uncertainty of streamflow values, the loads very nearly matched 1993 metal loading values along the Alamosa calculated by Walton-Day and others, 1995.

DISCUSSION OF MAP PLATES 4-10

Several maps have been created to depict the interrelationship between specific alteration assemblages and the local water chemistry. Plate 4 shows water sample site locations and

Page 7: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

differentiates between stream, spring, or adit samples. Plate 5 includes the pH and specific conductance data from this study superimposed upon the alteration map of the IABC basins. Figures 1 and 2 and table 4 show the relationship between specific alteration assemblages and water pH and conductivity.

Water analyzed from the Alum Creek area, which marks one of the main centers of alteration (quaitz-sericite-pyrite) and mineralization within the IABC basins, is by far the most degraded within the study area, with pH values commonly less than 2.5 and conductivity as high as 2,000 to 10,000 microsiemens per centimenter (/^s/cm). The extensive zone of quaitz-sericite- pyrite (QSP) altered rock in Alum Creek and the associated stockwork veining and sparse molybdenite mineralization is related to an extremely weak molybdenum-copper porphyry system at depth.

Iron Creek at its headwaters appears to be a relatively healthy stream and is known to be a habitat for trout. The first significant influx of degraded water originates from a tributary draining altered and pyritized rock in the saddle between Cropsy and Lookout Mountains. Sheepshead delimits the western extent of intensely hydrothermally altered rocks in the study area. Just to the east of Sheepshead, a prominently altered basin is drained by a tributary with water averaging a pH of about 4.0 and conductivity of about 300 us/cm.

Water quality along Bitter Creek is most adversely affected from relatively acidic water draining from the three altered basins on the north side of Bitter Creek, below and flanking Elephant Mountain.

Plate 6 shows the relationship between the concentrations of iron, aluminum, and sulfate in the waters to the underlying alteration assemblages. Figures 3-5 and table 4 show that the QSP, QSP-K, QSP-PX and argillic alteration assemblages (see map legend for explanation of units), have the highest concentrations of iron, aluminum, and sulfate. Areas of fresh and propylitically altered rock produce waters with the lowest concentration of iron, aluminum, and sulfate.

Plate 7 relates the variations in aqueous base metal concentrations (given as the sum of base metals Zn, Cu, Cd, Co, Ni, and Pb) as a function of pH (Ficklin plot; Ficklin and others, 1992) for waters from the study area. As observed on this map, waters plotting in the high-acid and high metal field (figure 7) are primarily restricted to Alum Creek area. Fresh and propylitically altered rocks yield waters that generally plot in the near-neutral, low-metal fields on the Ficklin diagram (figure 7). Figure 6 demonstrates the show the relationship between the various alteration assemblages and the sum of the Ficklin base metals.

Plate 8 shows Cu, Pb, and Zn concentrations from over 1,900 rock samples from Inspiration Development Company, with thematically shaded aqueous values for Pb, Zn, Cu, and pH. Several important observations can be made from this plate: Metals within the study area are roughly zoned, with Pb and Zn concentrated marginal to, or around, anomalous zones of Cu. This zonation is most readily observed in the Alum Creek area, and in the area southwest of South Mountain, the latter denoted by strongly elevated Pb and Zn. The anomalous zone of Pb- Zn southwest of South Mountain undoubtedly lies on the margin of a zone of highly elevated Cu concentrated just northeast of South Mountain at the Summitville mine site. Second, the highest aqueous metal concentrations correlate positively with the lowest pH values. As a result, the Alum Creek area, center of a large zone of QSP-altered rock, abundant pyrite, and anomalous

Page 8: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

metal concentrations, has the highest aqueous concentrations of Pb, Zn, and Cu and lowest pH values in the study area. Conversely, a stream draining weakly altered rock containing elevated Pb and Zn concentrations in the area southwest of South Mountain has a relatively high pH and low associated metal concentrations.

Plates 9 and 10 depict the metal loading (in milligrams per second (mg/s)) for sulfate, aluminum, total iron, copper, zinc, and manganese. To analyze the loads, the area was divided into IABC drainage basins (the heavy solid black lines). The first sample, closest to the mouth of the creek is arbitrarily assigned the first order. The next samples upstream are second order and so forth. Generally, the metals at the highest order are carried on down stream and the effects are cumulative. For instance, if two third order streams each carry 30 mg/s then, when those streams join, the second order stream would carry at least 60 mg/s. The stream could carry much more than 60 mg/s if there was additional degraded water from other sources. Generally, the loads increase downstream. If chemical reaction, dilution, or precipitation occur, the load could decrease.

Iron Creek has low metal contents in its upper reaches but as the pH drops and there is anomalous copper in the rocks, and the metal load increases. Load increases dramatically at the third order sample (TMT44) downstream from the copper anomaly even though the stream flow is relatively low. A spring at TMT43 contributes a small amount of metals but before the stream reaches the Alamosa River (TMT42) some sulfate has been removed from the system and iron has increased. As expected, adding the load from Iron Creek to that measured in Alamosa River (AR49.5) is somewhat less than the load at AR49.4.

Alum Creek has low streamflow, low metal content, and low loads in its upper reaches (fourth order and above). Although there are local high concentrations of metals in the eastern­ most third order sample the flow is so low that the load is negligible. The western third order stream however, carries much more volume and shows the effects of the Cu and Zn anomalies. Low pH combined with anomalous metal concentrations combine to produce anomalous loads. Adding the load of TMT25 to AR49.4 is somewhat less than that at AR48.1. As there has been plenty of opportunity for at least four side streams to contribute metals, this is good correlation.

Low flows in upper Bitter Creek limit the load of the streams. Effects of a copper anomaly can be seen in third order sample TMT16 and second order sample TMT18. Although the concentrations of metals are very high above those sites, the stream flow is relatively low. A small amount of metal is picked up the remainder of the way to the mouth of Bitter Creek. Again, the contributions from Bitter Creek add to the Alamosa River's load at AR46.9. Very little additional metal is added to the Alamosa River before it's confluence with Wightman Fork. Wightman Fork adds nearly three times the metal load to the River. Why this is the case isn't clear: It may be because mining disturbed the basin, but it may also be due to the naturally higher presence of metals in this drainage.

Page 9: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

REFERENCES

Barry, T.H., in press, The geochemistry of natural waters draining hydrothermally altered and mineralized terrains in the upper Alamosa River basin, Colorado: Auburn, Alabama, Auburn University unpublished masters thesis dissertation, 253p.

Bove, D.J., 1994, Preliminay report on the geology of hydrothermally altered areas within theupper Alamosa River basin, Colorado: U.S. Geological Survey Open-File Report 94-224, 12 p.

Bove, D.J., Barry, T.H., Kurtz, J., Hon, K., Wilson, A.B., Van Loenen, R.E., and Kirkham, R.M., 1995, Geology of hydrothermally altered areas within the upper Alamosa River basin, Colorado, and probable effects on water quality, in Posey, H.H., Pendleton, J.A., and Van Zyl, D., eds., Proceedings-Summitville Forum '95, January 17-20, 1995: Fort Collins Publication 38, p. 35-41.

Brindley, G.W., 1980, The X-ray identification and crystal structures of clay minerals: Mineralogical Society of London, Monograph 5.

Calkin, W.S., 1967, Geology, alteration, and mineralization of the Alum Creek area, San Juan volcanic field, Colorado: Golden, Colorado School of Mines, Ph. D. thesis dissertation 177 p.

Ficklin W.H., Plumlee, G.S, Smith, K.S., and McHugh, J.B., 1992, Geochemical classification of mine drainages and natural drainages in mineralilzed areas, in Kharaka, Y.K., and Maest, A.S. eds., Water-rock interaction: Seventh International Symposium on Water-Rock Interaction, Park City, Utah, July 13-18, 1992, Proceedings, v. 1: Rotterdam, A.A., Balkema, p. 381-384.

Fishman, J.J., and Pyen, G., 1979, Determination of selected anions in water by ionchromatography: U.S. Geological Survey Water Resources Investigation 79-101, 30 p.

Jackson, L.L., Brown, F.W., and Neil, S.T., 1987, Major and minor elements requiring individual determination, classical whole rock analysis, and rapid rock analysis: in Methods for Geochemical Analysis (ed. P.A. Baedecker), U.S. Geological Survey Bulletin 170, p. Gl- G23.

Johnson, R.G., and King, B.L., 1987, Energy dispersive X-ray flourescence spectrometry: in Methods for Geochemical Analysis (ed. P.A. Baedecker), U.S. Geological Survey Bulletin 170, p. F1-F4.

Kirkham, R. M. Lovekin, J. R., and Sares, M. A., 1994, Sources of acidity and heavy metals in the Alamosa River Basin, outside of the Summitville mining area, Colorado, in Posey,

Page 10: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

H.H., Pendleton, J.A., and Van Zyl, D., eds., Proceedings Summitville Forum '95, January 17-20, 1995: Fort Collins Publication 38, p. 42-56.

Lichte, F.E., Golightly, D.W., and Lamothe, P.J., 1987, Inductively coupled plasma-atomicemission spectrometry: in Methods for Geochemical Analysis (ed. P.A. Baedecker), U.S. Geological Survey Bulletin 170, p. B1-B10.

Lipman, P.W., 1974, Geologic map of the Platoro caldera area southeastern San Juan Mountains, Colorado: U.S. Geological Survey Miscelllaneous Investigation Series Map 1-828, scale 1:48,000.

Miller, W. R., and McHugh, J. B., 1994Natural acid drainage from altered areas within andadjacent to the Upper Alamosa River Basin, Colorado, U.S. Geological Survey Open File Report 94-144, 47 p.

Srodon J., and Eberl, D.D., 1984, Dlite, in Bailey, S.W., ed., Reviews in Mineralogy, Micas, Volume 13, Mineralogical Society of America, p. 495-539.

Taggart, J.E., Jr., Lindsay, J.R., Scott, B.A., Vivit, D.V., Bartel, A.J., and Stewart, K.C., 1987, Analysis of geologic materials by wavelength-dispersive X-ray fluorescence spectrometry: in Methods for Geochemical Analysis (ed. P.A. Baedecker, U.S. Geological Survey Bulletin 170, p. El-El 9.

Walton-Day, Ortiz, R.F., and von Guerard, P.B., 1995, Sources of water having low pH and elevated metal concentrations in the upper Alamosa River from the headwaters to the outlet of Terrace Reservoir, south-central Colorado, April-September, 1993, in Posey, H.H., Pendleton, J.A., and Van Zyl, D., eds., Proceedings-Summitville Forum '95, January 17-20, 1995: Fort Collins Publication 38, p. 160-170.

Page 11: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

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Tm

dT

suT

su?

Tsu

?T

md

Tad

Tad

Tpd

Tad

Tad

-fin

e ph

ase

Tm

dT

riT

dp?

Tdp

Tsd

Tdp

Tsu

Tdp

Tsu

Tds

Tm

dT

md

Tm

dT

rp?

Tsu

Tsu

Tsu

Trp

?T

md

Tm

dT

rp?

Tdp

Tad

Tsu

Tsu

Tsu

Tsu

Tsu

Pyri

te c

onte

nt

spar

se

abun

dant

ab

unda

nt

abun

dant

sp

arse

abun

dant

spar

se

mod

erat

e sp

arse

SiO

,A

120

3F

eT0

3M

gOC

aON

a2O

K,O

58.5

061

.80

80.3

064

.70

58.2

069

.20

62.6

069

.90

68.7

073

.80

60.3

061

.70

58.3

069

.40

70.0

071

.20

63.1

065

.10

59.2

053

.00

65.3

059

.30

64.5

061

.70

59.0

056

.30

53.8

052

.60

64.0

073

.20

71.2

069

.80

61.0

061

.40

60.8

063

.70

67.3

088

.20

73.8

058

.30

70.5

0

16.1

015

.70

6.92

19.0

015

.10

17.9

015

.30

17.3

015

.30

16.1

015

.40

15.4

016

.50

17.0

014

.80

16.0

016

.40

15.3

015

.30

17.8

015

.00

19.1

014

.10

16.2

015

.80

16.0

015

.00

17.3

013

.80

15.1

018

.00

17.5

016

.00

15.9

015

.90

16.1

016

.40

3.78

17.3

016

.10

12.2

0

6.83

5.73

0.15

3.45

0.17

0.69

0.27

1.95

4.81

0.52

6.31

6.31

7.63

3.22

2.81

1.63

5.34

4.65

8.89

9.28

3.98

7.66

4.07

6.05

7.21

8.45

8.80

10.3

07.

161.

450.

611.

196.

225.

456.

364.

892.

422.

430.

176.

764.

88

2.64

2.06

0.07

1.11

0.07

1.10

0.07

0.52

0.24

0.83

1.53

1.93

2.54

0.45

0.77

0.43

1.51

1.54

1.96

3.53

1.10

0.13

1.29

1.65

3.07

3.73

4.39

4.28

5.19

0.15

0.48

0.87

2.32

2.39

2.25

0.68

0.26

0.07

0.07

1.48

2.51

4.24

3.86

0.24

0.08

0.32

0.24

0.41

0.10

0.28

0.07

4.60

3.64

3.82

0.16

1.90

0.07

3.04

0.42

0.67

6.33

2.11

0.19

3.39

3.19

4.86

4.88

5.81

7.24

0.50

0.23

0.10

0.29

3.08

3.95

4.78

2.64

1.81

0.05

0.10

5.95

n.i6

3.45

3.13

0.19

0.11

0.85

0.11

0.63

0.11

0.15

0.11

3.21

3.80

4.16

0.11

4.18

0.22

3.71

2.39

4.04

3.49

2.71

0.35

3.80

4.12

3.46

3.37

2.92

3.20

0.11

0.11

0.36

0.11

3.61

3.76

3.20

3.28

3.19

0.11

0.11

3.00

ail

3.68

3.92

1.25

5.63

2.79

3.94

2.06

3.88

4.12

3.93

3.65

4.32

3.62

4.50

4.11

4.39

3.86

4.89

3.41

2.21

4.31

3.68

3.26

3.42

3.73

3.25

2.71

2.31

1.27

3.06

4.48

4.65

4.27

3.82

3.62

3.66

4.68

0.17

0.08

3.36

2.^3

Page 12: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

oo

Tab

le 1

. (c

ont'd

)

Fiel

d ID

PD01

PD02

SD07

SD17

SD19

SD21

ASD

21B

SD34

SD45

SD46

ASD

52SD

54A

SD54

BSJ

14SJ

35SJ

38SJ

39SJ

49SJ

51SJ

76SJ

79SJ

81SJ

82SJ

84SK

01SK

06SK

09SK

12SK

13SK

23SK

25SK

26SK

27SK

30SK

35A

SK42

ASK

42B

SK43

BSK

43C

SK44

SK47

A

TiO

,P2

0,

MnO

LO

I925

CC

O,

FeO

T

OT

AL

H2O

H,0

+H,

O-T

OT

AL

SR

bSr

0.91

0.78

0.94

1.13

0.86

1.19

0.96

1.12

0.66

0.78

0.83

0.74

0.94

0.95

0.41

0.74

0.68

0.75

0.92

1.10

0.62

1.18

0.57

0.74

0.93

1.05

1.02

1.25

1.15

0.88

1.00

1.14

0.82

0.74

0.84

0.49

0.49

0.77

0.54

0.97

0.86

0.38

0.31

0.24

0.11

0.28

0.17

0.32

0.12

0.40

0.10

0.34

0.32

0.40

0.10

0.18

0.19

0.34

0.26

0.50

0.47

0.29

0.55

0.26

0.32

0.37

0.37

0.34

0.51

0.53

0.39

0.16

0.11

0.32

0.30

0.31

0.22

0.21

0.16

0.25

0.36

0.16

0.12

0.09

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.11

0.18

0.19

0.01

0.05

0.01

0.07

0.08

0.25

0.16

0.07

0.01

0.09

0.14

0.13

0.17

0.16

0.19

0.10

0.01

0.01

0.01

0.12

0.16

0.13

0.21

0.01

0.01

0.01

0.12

0.05

1.65

1.29

7.87

4.07

16.90

3.98

13.30

4.31

4.74

3.32

3.13

0.81

1.58

3.42

0.51

4.19

0.16

4.11

4.80

1.61

3.57

7.36

3.98

2.11

0.90

1.81

4.26

0.65

5.76

4.45

3.05

3.75

1.74

1.26

1.30

2.81

2.71

3.55

6.87

2.43

5.76

0.01

0.70

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

1.59

0.22

0.15

0.01

0.01

0.01

0.01

0.01

0.01

0.30

1.10

0.01

2.37

0.15

0.22

0.51

1.90

0.01

0.01

0.01

0.01

0.01

0.01

0.22

0.15

0.81

0.01

0.01

0.01

2.02

0.01

3.65

2.79

0.03

0.17

0.03

0.04

0.05

0.20

0.18

0.08

2.68

2.44

2.94

0.08

0.68

0.07

1.87

1.77

1.13

4.28

0.88

0.14

1.62

2.06

3.68

3.87

4.19

4.49

2.99

0.12

0.14

0.19

2.69

2.46

0.49

0.32

0.15

0.02

2.72

0.62

1.83

1.35

2.48

3.75

5.14

3.01

4.12

3.69

2.31

3.23

1.60

0.87

1.59

3.27

0.40

2.63

1.46

3.15

3.75

1.96

2.55

3.23

1.95

1.94

1.11

1.86

3.13

1.09

5.31

3.27

2.66

3.30

1.90

1.43

1.36

2.22

1.71

1.61

6.43

1.27

3.68

1.68

1.20

2.41

3.24

5.05

2.45

4.04

3.02

1.87

2.94

1.06

0.67

1.28

2.93

0.31

2.59

1.14

2.39

2.79

1.82

2.10

3.08

1.70

1.58

1.03

1.68

2.90

0.98

4.22

2.77

2.45

2.58

1.50

1.17

1.15

1.41

1.04

1.45

6.14

0.93

3.26

0.15

0.15

0.07

0.51

0.09

0.56

0.08

0.67

0.44

0.29

0.54

0.20

0.31

0.34

0.09

0.04

0.32

0.76

0.96

0.14

0.45

0.15

0.25

0.36

0.08

0.18

0.23

0.11

1.09

0.50

0.21

0.72

0.40

0.26

0.21

0.81

0.67

0.16

0.29

0.34

0.42

n.d.

n.d.

2.68 n.d.

5.95

0.22

4.45

0.71

3.43

0.05 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

5.76 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

1.35 n.d.

n.d.

n.d.

n.d.

108 98 7

235 7

166 7

116

104

102

100

132 94 120

102

130 95 142 88 42 98 79 84 80 116 98 55 55 30 57 130

134

138 83 97 86 104

n.d. 7 83 59

760

590

740 53 420

182

210 54 55 16 710

550

660

110

510

280

540

250

320

850

580

660

425

530

680

640

400

900

440

455

210

315

550

670

540

415

415

n.d.

1000 650 45

Page 13: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 1

. (c

ont'd

)

Fiel

d ID

Zr

Y

N

b B

a Fe

S2

SO3

PD01

PD02

SD07

SD17

SD19

SD21

ASD

21B

SD34

SD45

SD46

ASD

52SD

54A

SD54

BSJ

14SJ

35SJ

38SJ

39SJ

49SJ

51SJ

76SJ

79SJ

81SJ

82SJ

84SK

01SK

06SK

09SK

12SK

13SK

23SK

25SK

26SK

27SK

30SK

35A

SK42

ASK

42B

SK43

BSK

43C

SK44

SK47

A

240

230

255

390

245

315

225

178

176

176

210

198

200

270

180

172

150

285

255

166

140

210

146

215

194

245

154

136

220

215

215

300

345

250

265

205

210

n.d.

245

260

124

22 20 7 31 10 36 29 26 21 18 21 16 18 34 7 15 17 23 34 22 12 22 10 23 21 26 22 26 24 13 23 21 27 21 25 27 18 n.d. 18 28 14

11 13 10 22 14 20 11 10 10 10 10 11 7 13 13 12 12 15 13 7 10 7 12 14 12 11 11 7 12 7 11 15 11 11 11 7 7n.d. 7 10 7

830

790

345

190

480

405

440

710

142

560

720

760

710

1500

1150 475

810

860

830

630

1050 600

620

890

720

590

750

690

375

770

355

820

780

960

780

770

850

n.d.

180

790

470

n.d.

n.d.

0.00 n.d.

0.00

0.41

0.00

1.33

6.40

0.09 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

10.7

5n.

d.n.

d.n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

2.52 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

10.00

n.d.

22.2

10.00

16.61

0.00

0.00

0.00 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n,d.

n.d.

n.d.

n,d.

n.d.

0.00 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n,d.

n.d.

n.d.

n.d.

n.d.

n.d.

0.00 n.d.

n.d.

n.d.

n.d.

Page 14: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 1

. (c

ont'd

)

Fiel

d ID

La

b N

umbe

rA

ssem

blag

e

SK47

BSK

47C

SK49

ASK

49B

SK49

CSK

49D

SK54

ASK

54B

SK55

ASK

55B

SK60

SK61

SK64

ASK

64B

SK66

ASK

66B

SK67

BSK

68SK

69A

SK69

DSK

71SK

73B

SK74

ASK

74B

SK79

ASR

04SR

20SR

21SR

24SR

30SR

33A

D57

3814

D57

3815

D57

3816

D57

3817

D57

3818

D57

3819

D57

3821

D57

3822

D57

3823

D57

3824

D57

3826

D57

3827

D57

3829

D57

3830

D57

3832

D57

3833

D57

3834

D57

3836

D57

3837

D57

3838

D57

3840

D57

3842

D57

3843

D57

3844

D57

3847

D57

3852

D57

3858

D57

3859

D57

3860

D57

3861

D57

3862

QSP

SILI

CSI

LIC

SILI

CQ

SP-K

QA

AR

CPR

OP

W-A

SQ

SP-K

QSP

-KW

-AS

QSP

W-A

SA

RC

QSP

AR

CQ

SPPR

OP

QSP

-KQ

AFR

ESH

PRO

PW

-AS

FRE

SHQ

SPPR

OP

PRO

P

Roc

k un

it

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tm

dTs

dTm

dT

md

Tad

Tm

dT

adT

su Tsu

Tsu

Tad

Tds

Tsu

Tsu

Tdp

Tds

Tds

Tds Tsl

Tad

Tad

Pyri

te c

onte

nt

abun

dant

mod

erat

e

spar

se

abun

dant

abun

dant

mod

erat

e

abun

dant

mod

erat

e

Si0

2A

l,0

3F

eT03

MgO

CaO

Na,

OK

,O

57.3

054

.50

96.4

096

.20

96.4

073

.00

52.4

071

.40

58.6

070

.40

63.5

070

.40

61.5

064

.60

72.9

068

.30

69.2

065

.90

60.3

066

.00

69.9

063

.60

71.4

045

.20

67.4

067

.10

72.6

069

.20

66.9

060

.50

61.4

0

18.1

017

.60

0.78

0.79

0.58

16.9

017

.10

18.1

016

.30

15.8

017

.70

18.0

016

.50

19.2

015

.70

18.9

014

.20

20.6

018

.50

20.1

017

.90

15.3

014

.90

19.3

015

.00

13.4

015

.30

15.1

020

.70

15.3

015

.80

6.72

8.37

0.27

0.53

0.22

0.51

0.27

0.21

9.45

2.26

5.22

0.97

5.25

1.54

0.50

1.17

3.43

0.94

6.77

1.01

0.39

5.29

1.43

1.34

4.22

3.51

0.78

2.64

0.50

6.08

6.17

4.10

3.09

0.07

0.07

0.07

0.24

0.07

0.19

1.31

0.49

0.93

0.76

2.61

1.21

1.33

0.48

0.37

0.07

0.79

0.60

0.35

1.77

0.80

0.07

1.21

1.44

0.55

0.76

0.38

2.41

1.95

0.21

6.23

0.05

0.06

0.05

0.23

0.18

0.26

2.72

0.12

0.11

0.07

0.18

0.04

0.12

0.23

0.13

0.20

0.04

0.13

0.22

3.16

0.13

0.19

2.05

2.50

0.32

2.21

0.12

3.40

4.11

0.11

3.22

0.11

0.11

0.11

0.57

0.33

0.19

2.46

0.54

0.11

0.11

1.98

0.11

0.11

0.48

2.81

0.11

0.11

0.15

0.21

3.71

0.11

0.52

3.45

2.18

2.54

4.19

0.58

3.76

3.65

4.15

1.83

0.07

0.08

0.10

1.85

4.16

0.67

2.50

2.83

3.91

3.78

4.71

5.31

4.18

2.90

4.90

0.07

4.79

1.12

4.67

3.69

3.23

4.65

4.08

4.48

3.63

4.07

4.69

3.46

3.35

Page 15: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 1

. (c

ont'd

)

Fiel

d ID

SK47

BSK

47C

SK49

ASK

49B

SK49

CSK

49D

SK54

ASK

54B

SK55

ASK

55B

SK60

SK61

SK64

ASK

64B

SK66

ASK

66B

SK67

BSK

68SK

69A

SK69

DSK

71SK

73B

SK74

ASK

74B

SK79

ASR

04SR

20SR

21SR

24SR

30SR

33A

Ti0

2M

nOL

OI9

25C

CO

,Fe

OT

OT

AL

H2O

H20

+H,

O-T

OT

AL

SR

bSr

1.20

1.06

1.09

0.95

1.21

1.11

0.78

1.08

0.97

1.32

0.92

0.70

0.78

1.02

0.72

1.13

0.56

1.04

1.22

1.31

0.81

0.68

0.69

0.78

0.53

0.56

0.66

0.46

1.46

0.73

0.71

0.42

0.47

0.09

0.07

0.07

0.34

0.44

0.45

0.35

0.08

0.41

0.14

0.31

0.20

0.07

0.40

0.14

1.26

0.23

0.34

0.32

0.32

0.26

0.42

0.24

0.24

0.17

0.22

0.19

0.30

0.34

0.08

0.17

0.01

0.01

0.01

0.01

0.01

0.01

0.27

0.01

0.01

0.01

0.08

0.02

0.03

0.01

0.01

0.01

0.02

0.01

0.01

0.11

0.01

0.01

0.08

0.06

0.01

0.03

0.01

0.12

0.14

6.91

1.82

0.48

0.63

0.66

4.43

20.20

6.09

4.41

4.73

6.53

4.25

5.40

5.68

3.78

5.12

3.56

8.39

6.76

7.75

4.21

1.27

5.99

22.50

1.13

2.44

2.09

0.35

3.41

2.41

1.54

0.01

0.77

0.01

0.01

0.01

0.01

0.01

0.01

1.10

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.01

0.55

0.01

0.01

0.01

1.60

0.01

0.01

0.01

1.27

0.58

1.10

3.95

0.06

0.04

0.04

0.04

0.03

0.03

2.96

0.16

0.20

0.13

1.24

0.19

0.09

0.14

0.11

0.07

0.16

0.04

0.05

2.13

0.05

0.07

1.44

1.70

0.10

0.59

0.06

2.58

2.52

4.76

2.09

0.57

0.58

0.53

4.12

6.38

4.83

3.45

4.51

3.89

4.05

3.46

4.98

3.57

4.53

1.94

7.73

3.53

7.27

2.76

1.33

4.11

6.86

1.18

2.14

2.53

0.38

3.18

2.08

1.47

4.14

1.92

0.53

0.49

0.53

3.22

6.18

4.36

2.67

3.35

3.19

3.83

2.40

3.52

2.71

4.09

1.16

7.37

2.86

5.56

3.69

1.09

3.57

6.75

0.86

1.63

1.80

0.38

2.81

1.77

1.19

0.62

0.17

0.04

0.09

0.04

0.90

0.20

0.47

0.78

1.16

0.70

0.22

1.06

1.46

0.86

0.44

0.78

0.36

0.67

1.71

0.07

0.24

0.54

0.11

0.32

0.51

0.73

0.04

0.37

0.31

0.28

3.30 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

3.97 n.d.

2.70 n.d.

0.06

0.31

2.06 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

0.04 n.d.

102 32 7 7 7 60 24 24 56 112

134

114

134

152

124 66 126 18 130 31 134 94 114 11 106

114 77 106

116 97 82

30 940

122

102 83 395

1300 930

540

225

230 73 220

560 28 690

290

1050 54 520

360

550

730

1200 460

225

194

530

178

510

580

Page 16: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 1

. (c

ont'd

)

Fiel

d ID

Z

r Y

N

b B

a Fe

S2

SO3

SK47

BSK

47C

SK49

ASK

49B

SK49

CSK

49D

SK54

ASK

54B

SK55

ASK

55B

SK60

SK61

SK64

ASK

64B

SK66

ASK

66B

SK67

BSK

68SK

69A

SK69

DSK

71SK

73B

SK74

ASK

74B

SK79

ASR

04SR

20SR

21SR

24SR

30SR

33A

178

186

200

144

196

196

142

310

265

365

320

255

260

355

150

205

136

250

205

240

160

170

375

146

120

124

156

200

295

178

168

28 20 21 12 17 27 11 32 25 32 38 17 23 35 20 31 12 7 14 24 12 20 21 7 7 10 12 7 27 22 20

10 10 10 7 12 7 7 12 13 20 14 12 13 18 13 12 14 10 13 12 11 11 14 7 7 10 14 14 11 12 11

820

810

166

1100 540

660

950

750

700

1500 960

780

1100

1300 410

900

870

2000 890

485

840

770

780

650

670

870

620

1150 600

1700 960

6.16 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

7.41 n.d.

5.04 n.d.

0.11

0.00

3.85 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

0.07 n.d.

n.d.

0.00 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

0.00 n.d.

0.00 n.d.

0.00

0.00

0.00 n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

n.d.

0.00 n.d.

n.d.

Page 17: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. 40

ele

men

t IC

P-A

ES g

eoch

emic

al d

ata

for r

ock

sam

ples

take

n in

the

Iron

, Alu

m, a

nd B

itter

Cre

ek a

reas

. X

RF,

and

trac

e el

emen

ts b

y en

ergy

dis

pers

ive

XR

F. S

ee m

etho

ds f

or d

etai

led

anal

ytic

al d

escr

iptio

ns.

[See

alte

ratio

n m

ap (

plat

e 5)

and

geo

logi

c m

ap (

plat

e 1)

for

exp

lana

tion

of u

nits

. A

ltera

tion

asse

mbl

age

conf

irm

ed b

y X

RD

.]

FIE

LD

ID

L

ab n

umbe

rR

ock

unit

Ass

embl

age

EPD

2AE

PD3A

EPD

3CSA

01SA

03SA

11SA

14SD

07SD

13A

SD13

CSD

17SD

19SD

21A

SD21

BSD

34SD

35B

SD38

SD40

ASD

43A

SD45

SD46

ASD

56A

SD57

ASD

57B

SD57

CSD

58SD

59B

SJ03

SJ13

SJ14

SJ15

SJ20

SJ22

SJ24

SJ26

SJ27

SJ37

SJ45

SJ46

SJ49

SJ54

SJ69

SJ7

2SJ

80

D57

3710

D57

3711

D57

3712

D57

3715

D57

3716

D57

3717

D57

3718

D57

3719

D57

3721

D57

3722

D57

3723

D57

3724

D57

3725

D57

3726

D57

3728

D57

3729

D57

3730

D57

3731

D57

3733

D57

3734

D57

3735

D57

3740

D57

3741

D57

3742

D57

3743

D57

3744

D57

3745

D57

3746

D57

3747

D57

3748

D57

3749

D57

3750

D57

3751

D57

3752

D57

3753

D57

3754

D57

3757

D57

3761

D57

3762

D57

3763

D57

3766

D57

3770

D57

3771

D57

3774

Tsl

Tsl

Tsl

Tsl

Tsl

?T

slT

slT

suT

suT

suT

md

Tsu

Tsu

?T

su?

Tm

dT

md

Tm

dV

ein

Tm

dT

adT

adT

md

Vei

nT

md

Tm

dT

md

Tm

dT

apT

dpT

md

Tsu

Tsu

Tsu

Tsu

? Tsu

Tsu

Tm

dT

md

Tsd

Tsu

Tad

Tsu

Bre

ccia

SIL

ICA

RG

SIL

ICA

RG

QSP

-KQ

AW

-AS

QA SIL

ICSI

LIC

QSP

-KQ

AQ

SPQ

AQ

SP-K

QSP

-KQ

SP-K

SIL

ICC

HL

-PQ

SPQ

SP-K

QSP

VE

INQ

SPQ

SPQ

SPQ

SPQ

SP-K

SIL

ICQ

SPW

-AS

W-A

SA

RG

SIL

ICSI

LIC

SIL

ICQ

SPQ

SPQ

SPW

-AS

CH

L-P

QSP

QA

QSP

AL

%

-SC

A

%-S

FE

%

-SK

%

-SM

G

%-S

NA

%

-SP

%

-SIT

%

-S

9.10

1.40

1.70

8.70

8.50

8.20

8.80

3.50

0.44

1.40

9.80

7.60

8.60

6.10

9.30

8.40

7.20

5.40

7.90

8.20

8.20

7.80

2.80

6.10

8.70

8.80

6.20

8.90

0.54

8.70

9.10

9.40

7.20

1.10

0.55

1.90

8.80

8.90

7.50

7.80

8.90

6.80

6.40

7.60

0.05

0.04

0.07

0.15

0.06

0.34

0.54

0.16

0.08

0.28

0.05

0.24

0.18

0.31

0.07

0.08

0.05

0.04

1.20

0.22

0.04

0.09

0.83

0.11

0.08

0.17

0.06

0.04

0.08

0.11

2.40

0.20

0.17

0.10

0.09

0.30

0.16

0.09

0.07

0.31

0.36

0.07

0.13

0.13

1.10

1.10

0.61

4.50

6.70

0.43

1.50

0.07

0.30

0.10

2.50

0.10

0.48

0.16

1.40

2.80

5.50

4.60

4.50

3.60

0.35

1.60

1.70

0.35

0.56

0.33

1.20

4.90

0.12

2.30

6.00

4.40

0.44

0.28

0.25

0.24

0.14

5.00

5.70

3.30

5.20

0.21

5.7

0

3.20

0.11

0.07

0.11

0.02

2.80

1.20

3.40

0.96

0.08

0.13

4.50

2.20

3.20

1.70

3.20

3.60

2.80

2.40

3.00

3.40

3.10

3.60

0.76

2.70

3.90

3.40

2.00

3.60

0.05

3.50

4.00

1.80

0.11

0.14

0.07

0.25

2.90

3.70

3.30

3.70

1.50

2.60

1.1

0

2.20

0.01

0.01

0.01

0.03

0.45

0.01

0.24

0.01

0.01

0.02

0.69

0.02

0.70

0.04

0.33

0.71

0.54

0.18

1.90

0.15

0.50

0.57

0.33

0.31

0.48

0.18

0.03

0.38

0.02

0.28

0.32

0.30

0.02

0.02

0.02

0.01

0.13

0.53

0.56

0.92

1.60

0.28

o.oi

0.22

0.04

0.03

0.03

0.02

0.04

1.30

2.40

0.23

0.02

0.03

0.08

0.69

0.18

0.60

0.13

0.07

0.03

0.09

2.80

0.20

0.05

0.05

0.02

0.04

0.04

0.14

0.17

0.08

0.01

0.10

1.40

3.40

0.08

0.07

0.01

0.06

0.46

0.09

0.07

1.80

3.70

0.13

0.82

0.31

0.14

0.04

0.10

0.24

0.21

0.19

0.08

0.08

0.09

0.26

0.04

0.12

0.06

0.12

0.04

0.04

0.13

0.04

0.12

0.18

0.04

0.06

0.04

0.01

0.02

0.10

0.18

0.05

0.06

0.03

0.14

0.03

0.19

0.09

0.11

0.38

0.14

0.10

0.09

0.11

0.16

0.01

0.11

0.13

0.57

0.47

0.49

0.13

0.52

0.14

0.20

0.13

0.10

0.80

0.21

0.12

0.56

0.32

0.37

0.08

0.22

0.08

0.28

0.07

0.24

0.23

0.03

0.12

0.36

0.24

0.04

0.31

0.51

0.15

0.50

0.77

0.75

0.52

0.20

0.12

0.11

0.09

0.08

0.38

0.31

0.09

0.34

0.19

Page 18: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

.

FIEL

D I

D

EPD

02A

EPD

03A

EPD

03C

SA01

SA03

SA11

SA14

SD07

SD13

ASD

13C

SD17

SD19

SD21

ASD

21B

SD34

SD35

BSD

38SD

40A

SD43

ASD

45SD

46A

SD56

ASD

57A

SD57

BSD

57C

SD58

SD59

BSJ

03SJ

13SJ

14SJ

15SJ

20SJ

22SJ

24SJ

26SJ

27SJ

37SJ

45SJ

46SJ

49SJ

54SJ

69SJ

72SJ

80

(con

t'd) MN

PPM

-S 13 26 13 10 260 7 85 19 9 13 94 6

110 30 100 84 99 46

1000 19 82 82 230 28 66 14 9 41 21 43 210 51 6 30 47 36 16 65 78 570

880 32 31 29

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

AS

PPM

-S 18 22 18 43 13 <10

<10

11<10

120 12 10 10 10 10 31

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

}M-S 82 860

440

220

320

250

700

300

580

870

400

180

470

190

630

650

420

160

260

130

530

320 45 91 560

540

380 48 620

1500 45 34 480

800

1300 260

350 50 29 230 40

1500 160

330

BE PPM

-S 1 < 1

< 1

< 1 2 < 1 1

< 1

< 1

< 1 3 < 1 1 < 1 1 2 2 1 2 1 2 2 1 1 2 < 1

< 1 2 < 1 1 2 1 < 1

< 1

< 1

< 1

< 1 2 1 2 1 1

< 1

< 1

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

70 21 69 39 74 41 74 48 72 160 69 69 27 18 41 72 52 23 84 16 74 32 22 56 71 54 47 48 40 27 71 67 63 44 47 110 81 54 21 78 38 51 46 34

1 1 16 27 5 1 2 7 13 13 18 13 5 3 21 24 15 1 20 16 11 22 6 2

Page 19: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIEL

D ID

CR

PPM

-S

EPD

02A

EPD

03A

EPD

03C

SA01

SA03

SA11

SA14

SD07

SD13

ASD

13C

SD17

SD19

SD21

ASD

21B

SD34

SD35

BSD

38SD

40A

SD43

ASD

45SD

46A

SD56

ASD

57A

SD57

BSD

57C

SD58

SD59

BSJ

03SJ

13SJ

14SJ

15SJ

20SJ

22SJ

24SJ

26SJ

27SJ

37SJ

45SJ

46SJ

49SJ

54SJ

69SJ

72SJ

80

CU

PPM

-SE

U P

PM-S

G

A P

PM-S

GE

PPM

-SH

O P

PM-S

LA

PPM

-SL

IPPM

-S

MO

PPM

-S

NB

PPM

-S

ND

PPM

-S

NIP

PM-S

19 8 12 6 22 3 3 13 5 22 9 9 22 18 7 10 12 8 15 10 13 9 3 7 10 7 14 14 8 14 5 17 6 5 79 89 11 11 10 9 6 8 2 6

5 12 7 37 63 1 15 1 3 <1

39 134 11 4 8 22 53 72 14 3 13 59 10 7 2 22 29 5 10 46 19 1 4 3 6 14 16 45 66 12

0 12 27 12

2 <2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

20 5 13 18 20 9 18 8 7 6 21 12 23 18 23 19 15 9 18 17 19 20 2.8 14 19 23 12 21 2.8 20 19 20 21 4 5 8 20 23 14 18 18 17 10 16

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

39.0

14.0

52.0

22.0

39.0

23.0

44.0

34.0

48.0

81.0

39.0

38.0

12.0 9.0

23.0

38.0

26.0

13.0

45.0 7.0

44.0

17.0

12.0

33.0

41.0

28.0

28.0

26.0

23.0

14.0

36.0

35.0

34.0

24.0

41.0

79.0

45.0

27.0

11.0

44.0

18.0

28.0

40.0

18.0

13 6 7 68 11 <2

<2

<2

<2

<2 3 <2

<2

<2

20 6 3 <2 7 <2 9 12 <2 2 <2

<2 7 2 <2

<2 7 2 18 <2

<2

<2

<2

<2 2 3 9 <2 8 <2

<2

<2

<2 4 <2

<2

<2

<2

<2

<2

<2

<2

<2 3 <2 4 18 12 3 7 3 <2 2 <2

<2

<2 2 <2

<2

<2

<2

<2

<2

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18 58 <2

<2

23 10 11 11 16 10 15 6 <4 9 16 10 20 13 15 11 11 6 16 9 13 13 4 11 18 16 7 15 4 13 16 21 16 6 <4

<4

12 12 9 20 14 10 11 11

37 9 20 21 38 21 37 12 18 68 34 31 16 13 20 36 28 12 42 11 33 16 12 26 32 28 22 24 19 14 39 31 33 20 13 29 39 25 12 36 19 22 19 18

<2

<2

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10 18 <2

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14 14 7 13 <2

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<2

Page 20: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

.

FIEL

D ID

EPD

02A

EPD

03A

EPD

03C

SA01

SA03

SA11

SA14

SD07

SD13

ASD

13C

SD17

SD19

SD21

ASD

21B

SD34

SD35

BSD

38SD

40A

SD43

ASD

45SD

46A

SD56

ASD

57A

SD57

BSD

57C

SD58

SD59

BSJ

03SJ

13SJ

14SJ

15SJ

20SJ

22SJ

24SJ

26SJ

27SJ

37SJ

45SJ

46SJ

49SJ

54SJ

69SJ

72SJ

80

(con

t'd) PB

PPM

-S 60 96 63 86 21 200 25 53 170 62 17 62 21 160 18 7 30 44 16 78 10 29 23 7 34 21 260 11 16 11 17 6 20 15 46 500

140 21 16 24 29 35 21 1860 96 63 86 21 200 25 53 170 62 17 62 21 160 18 7 30 44 16 78 10 29 23 7 34 21 260 11 16 11 17 6 20 15 46 500

140 21 16 24 29 35 21 18

7 5 5 5 16 3 7 5 3 13 21 5 18 11 15 10 9 6 10 9 10 12 4 10 11 11 3 15 1.4 14 14 13 6

1.4

1.4

1.4 15 16 15 11 11 8 6 10

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<5

<5

<5

<5

<5

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<5

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<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

1300 390

820

1800 45

1400 490

610

600

1700 50 440

170

210 36 61 32 21 320 42 14 34 34 19 63 380

840 37 660

110

620

470

1500 560

1000

2200 11

014

0 99 260

340 23

1400 600

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16 13 19 20 10 23 6 6 <4 4

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100

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100

100 25 43 110

120 96 37 42 12 59 130

110

170

120

170 96 90 61 96 81 93 110 29 68 100

110 58 140 18 130

110

220

210 39 12 52 120 93 79 90 99 67 95 120

rf-S 88 2 4 3 13 5 16 <2 3 8 8 3 5 4 4 6 6 3 21 4 7 6 5 5 8 8 <2

10 3 4 25 3 <2

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YB

PPM

-S 8 <1

< 1

< 1 1 < 1 2 < 1

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1

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PPM

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46 2 9 2 18 2 8 3 14 16 14 120

120 10 7 18 12 6 19 <2 2 12 7 4 30 11 3 2 3 <2

31 12 15 41 130 11 6 16

Page 21: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIE

LD

ID

La

b nu

mbe

rR

ock

unit

Ass

embl

age

AL

%

-SC

A

%-S

FE

%-S

K

%-S

MG

%

-SN

A

%-S

b-S

SJ81

SK06

SK07

SK09

SK13

SK17

SK18

SK19

ASK

19B

SK20

SK21

ASK

21B

SK22

ASK

22B

SK23

SK25

SK26

SK28

SK35

ASK

35B

SK35

CSK

35D

SK42

ASK

42B

SK43

BSK

43C

SK47

ASK

47B

SK47

CSK

49A

SK49

BSK

49C

SK49

DSK

52SK

54A

SK54

BSK

60SK

61SK

63SK

64A

SK64

BSK

65B

SK66

ASK

66B

SK67

BSK

67C

D57

3775

D57

3779

D57

3780

D57

3781

D57

3783

D57

3784

D57

3785

D57

3786

D57

3787

D57

3788

D57

3789

D57

3790

D57

3791

D57

3792

D57

3793

D57

3795

D57

3796

D57

3798

D57

3802

D57

3803

D57

3804

D57

3805

D57

3808

D57

3809

D57

3810

D57

3811

D57

3813

D57

3814

D57

3815

D57

3816

D57

3817

D57

3818

D57

3819

D57

3820

D57

3821

D57

3822

D57

3826

D57

3827

D57

3828

D57

3829

D57

3830

D57

3831

D57

3832

D57

3833

D57

3834

D57

3835

Tsu

Tmd

Ferr

icre

teT

ad Tsu

Tsu

Tds

9 9 Tds

9 9 Tds

Tds

Tsu Tad

Tmd

Tsu

Tdp

Tsu

Tsu

Tsu

Tad

Tsl

Tsl

Tsl

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu

Tsu Tm

dTs

dTm

dTm

dTm

dFe

rric

rete

Tad

Tmd

Tad

Tmd

QSP

-KPR

OP

W-A

SPR

OP

9 QSP

-KW

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QSP

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SP-K

AR

CQ

SP-K

QSP

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A9 W

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QSP

QSP

W-A

SPR

OP

CH

L-P

QA

QSP

FRE

SHC

HL-

PA

RC

AR

C9 Q

SP9 SI

LIC

SILI

CSI

LIC

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SPQ

AA

RC

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SP-K

QSP

W-A

S9 Q

SP9 W

-AS

W-A

S

TI

%-S

9.30

8.30

5.60

7.90

7.30

9.00

8.50

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10.0

01.

609.

509.

408.

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907.

409.

609.

009.

408.

408.

904.

407.

908.

508.

702.

109.

606.

8010

.00

9.40

0.41

0.37

0.32

9.10

8.30

9.10

8.40

9.70

9.40

7.50

8.50

9.60

0.49

7.90

10.0

07.

608.

40

0.10

3.50

0.27

4.20

0.36

0.26

0.18

0.08

0.22

0.08

0.20

0.06

0.09

0.08

0.14

0.07

0.22

3.60

3.40

3.00

0.08

0.07

1.90

1.40

0.03

0.06

0.12

0.17

4.40

0.05

0.04

0.04

0.18

0.08

0.14

0.17

0.08

0.05

0.06

0.13

0.02

0.00

0.09

0.17

0.10

0.16

5.80

6.00

14.0

06.

205.

100.

200.

400.

340.

370.

170.

680.

280.

482.

801.

000.

440.

835.

104.

405.

103.

802.

003.

301.

701.

900.

093.

605.

205.

800.

190.

380.

180.

370.

690.

170.

134.

300.

656.

903.

701.

0041

.00

0.38

0.85

2.60

9.60

2.70

2.50

1.90

2.10

1.00

1.00

1.90

2.50

2.50

0.10

2.50

2.10

2.60

1.50

2.40

3.70

3.70

2.20

3.10

2.10

1.10

3.40

3.10

4.00

0.14

0.06

2.00

3.80

1.60

0.05

0.06

0.07

1.50

3.20

3.30

0.55

3.20

3.00

3.00

3.60

4.00

2.30

3.20

2.30

3.90

1.40

0.08

2.20

0.37

2.50

3.00

0.10

0.21

0.17

0.32

0.01

0.19

0.02

0.01

0.01

0.10

0.30

0.53

0.54

1.40

1.10

0.02

0.30

0.43

0.17

0.00

0.01

1.60

2.60

1.90

0.02

0.02

0.01

0.14

0.27

0.01

0.11

0.62

0.48

0.53

1.50

0.72

0.02

0.80

0.31

0.24

1.50

0.35

2.50

1.20

2.30

0.19

0.08

0.98

0.55

0.69

0.02

0.14

0.32

0.91

0.66

0.14

0.37

0.05

1.60

2.50

2.40

0.49

0.06

2.50

2.40

0.06

0.03

0.06

0.10

2.50

0.01

0.01

0.02

0.55

0.20

0.38

0.25

0.07

0.05

0.08

1.50

0.09

0.14

0.05

0.47

2.20

3.40

0.20

0.16

0.35

0.14

0.22

0.22

0.12

0.14

0.18

0.10

0.16

0.19

0.12

0.10

0.13

0.05

0.03

0.20

0.13

0.17

0.06

0.03

0.08

0.08

0.05

0.08

0.06

0.20

0.20

0.02

0.02

0.01

0.15

0.05

0.21

0.18

0.19

0.06

0.05

0.14

0.08

0.18

0.02

0.17

0.06

0.12

0.18

0.63

0.25

0.66

0.21

0.19

0.08

0.08

0.10

0.04

0.09

0.05

0.05

0.06

0.11

0.19

0.25

0.58

0.54

0.63

0.05

0.13

0.27

0.32

0.50

0.36

0.50

0.80

0.66

0.53

0.38

0.63

0.69

0.12

0.47

0.65

0.33

0.16

0.17

0.21

0.32

0.03

0.21

0.22

0.16

0.25

Page 22: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIEL

D ID

SJ81

SK

06

SK07

SK

09

SK13

SK

17

SK18

SK

19A

SK

19B

SK

20

SK21

A

SK21

B

SK22

A

SK22

B

SK23

SK

25

SK26

SK

28

SK35

A

SK35

B

SK35

C

SK35

D_

SK

42A

oo

SK

42B

SK

43B

SK

43C

SK

47A

SK

47B

SK

47C

SK

49A

SK

49B

SK

49C

SK

49D

SK

52

SK54

A

SK54

B

SK60

SK

61

SK63

SK

64A

SK

64B

SK

65B

SK

66A

SK

66B

SK

67B

SK

67C

1813

00 180

1300 780 19 25 39 72 25 82 7 19 14 13 37 76 330

960

480 23 31

1600 45 88 13

390

700

1300 38 32 57 24 23 33 13 75 73 79 590

160 28 200 90 41

1200

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

< 10

< 10

< 10

< 10 17 < 10

<10

< 10

< 10 12 < 10

<10

<10

< 10

<10

< 10

< 10

< 10

< 10

< 10

<10

< 10

<10

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< 10 12 <10 11 10 <10 48 <10

< 10

< 10

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< 10

170

< 10

< 10 16 < 10

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

<8

32

159

0 2

620

378

0 2

380

177

0 1

460

<1

410

269

0 <

136

0 <

157

0 <

151

0 <

117

0 <

121

0 <

130

0 <

136

0 1

790

273

2

770

260

227

0 <1

110

2750

2110

248

0 <1

180

<182

234

0 1

810

2160

<11200

< 1

570

<167

0 1

500

163

<1

690

<185

3

760

249

285

1

1200

291

<1

390

2880

190

141

1

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

48 75 33 51 40 30 26 29 48 58 41 35 32 23 34 23 42 72 79 70 47 22 73 62 32 61 46 76 61 37 8 30 24 63 72 75 52 67 58 63 96 5 81 35 53 49

22 28 4 28 5 <1

<1

<1

< 1

<1 1 < l

< 1

12 <1

<1

<1

23 19 79 11 3 7 4 2 < 1

12 21 23 < 1

< 1 3 < 1

< 1

<1 < 1

17 32 18 7 <1

< 1 9 44

Page 23: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIEL

D I

D

SJ81

SK06

SK07

SK09

SK13

SK17

SK18

SK19

ASK

19B

SK20

SK21

ASK

21B

SK22

ASK

22B

SK23

SK25

SK26

SK28

SK35

ASK

35B

SK35

CSK

35D

SK42

ASK

42B

SK43

BSK

43C

SK47

ASK

47B

SK47

CSK

49A

SK49

BSK

49C

SK49

DSK

52SK

54A

SK54

BSK

60SK

61SK

63SK

64A

SK64

BSK

65B

SK66

ASK

66B

SK67

BSK

67C

4 49 13 120

270 6 73 37 12 5 9 11 14 6 18 71 17 6 15 20 4 7 2 3 5 4 3 4 3 5 4 5 1 2 26 9 22 12 14 15 22 0.7 16 0.7 35 6

37 93 150 92 20 7 10 46 15 54 3 14 21 43 37 4 2 36 44 33 20 2 15 9 15 <1

20 23 76 5 2 10 5 6 2 13 150 14 18 65 6 75 5 5 25 100

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

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<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

22 21 15 19 23 21 21 19 22 2.8 23 13 7

2.8 17 24 24 22 21 21 9 31 20 17 5 18 18 26 23 2.8 4

2.8 20 19 19 16 21 10 13 18 22 24 17 22 17 19

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

23.0

43.0

21.0

28.0

21.0

16.0

15.0

15.0

22.0

30.0

23.0

16.0

16.0

11.0

20.0

13.0

25.0

41.0

45.0

38.0

30.0

12.0

42.0

37.0

21.0

33.0

23.0

41.0

35.0

24.0 5.0

19.0

14.0

35.0

38.0

39.0

26.0

38.0

30.0

33.0

55.0 4.0

49.0

18.0

33.0

24.0

4 9 17 8 9 37 3 3 7 3 8 4 <2

<2

<2 2 6 12 10 15 <2

<2 8 6 3 5 8 8 3 4 4 2 13 <2

<2

12 12 2 <2 5 4 <2 3 4 6 10

<2

<2

<2

<2

<2

<2

<2

<2

<2 4 <2 6 <2

<2

13 <2

<2

<2

<2

<2 5 <2

<2

<2 4 2 <2

<2

<2

<2 3 <2

<2

<2

<2

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<2

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<2 4 <2

<2

<2

14 22 19 17 13 12 11 10 12 <4

11 11 11 7 11 12 14 18 23 20 5 13 18 18 9 22 14 22 17 6 5 8 20 16 17 22 14 13 12 14 16 <4

14 12 13 12

26 37 14 29 23 20 12 24 36 24 19 23 18 13 15 13 23 38 39 37 20 10 37 30 11 30 23 43 34 17 2.8 13 13 30 36 36 24 31 28 30 44 2.8 35 22 23 26

9 29 2 46 58 <2

<2

<2

<2

<2

<2

<2

<2 7 <2

<2 4 7 12 42 6 <2 4 3 3 <2 6 11 12 <2

<2

<2

<2

<2

<2

<2

13 3 32 13 <2

<2

<2

<2

12 24

Page 24: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

to o

Tab

le 2

. (c

ont'd

)

FIE

LD

ID

SJ81

SK06

SK07

SK09

SK13

SK17

SK18

SK19

ASK

19B

SK20

SK21

ASK

21B

SK22

ASK

22B

SK23

SK25

SK26

SK28

SK35

ASK

35B

SK35

CSK

35D

SK42

ASK

42B

SK43

BSK

43C

SK47

ASK

47B

SK47

CSK

49A

SK49

BSK

49C

SK49

DSK

52SK

54A

SK54

BSK

60SK

61SK

63SK

64A

SK64

BSK

65B

SK66

ASK

66B

SK67

BSK

67C

PBPP

M-S

SC

PPM

-S

SNPP

M-S

SR

PPM

-S

TA

PPM

-S

TH

PPM

-SU

PPM

-SV

PPM

-S

W P

PM-S

Y P

PM-S

YB

PPM

-SZ

N P

PM-S

30 13 20 11 72 140

130

510

650

230

270

1700 990

1100 14

0 44 28 33 17 15 28 17 21 18 19 21 13 15 15 76 43 82 12 22 20 18 29 44 32 47 60 13 35 41 16 15

13 20 8 23 15 11 10 7 12 1.4 10 5 5 3 8 16 13 14 14 15 4 18 5 5 3 3 14 20 17 2

1.4

1.4 12 9 9 3 14 9 12 12 14 3 10 14 6 16

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5 9 <5

19 <5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

490

660

230

430

450

750

240

970

1100

1100 460

1100 470

260

270

140

310

1100 550

530

450

110

440

440

630

860 44 24 970

120

110 77 400

360

1300 750

180 72 290

220

590

210 29 700

300

190

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

6 13 12 5 6 <4 6 7 5 <4 8 6 8 5 9 5 9 9 13 8 7 9 8 8 <4 6 <4 6 7 5 <4 5 <4

19 5 7 12 10 10 13 17 7 13 <4

20 5

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

<10

0<

100

160

200

280

210

150

170

100 72 100 17 92 77 99 70 93 150

110

140

120

150 58 79 39 40 42 48 140

240

170 18 21 20 160 66 230

190

130 77 98 110

130

120 98 110 58 140

10 25 4 19 7 3 2 5 6 <2 4 <2

<2

<2 2 <2 3 24 26 21 2 16 26 16 <2 6 4 7 19 <2

<2

<2 2 4 3 <2 8 2 4 6 9 <2 5 4 6 3

1 7

2 96

<1

451

92<

1 97

<1

26<

1 27

<1

17<

1 48

<1

42<

1 15

<1

18<

1 11

<1

12<

1 22

<1

9<

1 17

2 12

02

120

2 28

0<

1 11

<1

43

120

1 84

<1

2<

1 <

2<

1 16

1 29

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0<

1 3

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4<

1 8

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9<

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1 61

Page 25: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIE

LD

ID

SK69

ASK

69D

SK70

ASK

71SK

74A

SK74

BSK

81A

SK82

ASK

86A

SK86

BSR

11SR

13B

SRI 5

SRI 8

SR19

SR20

SR24

SR46

SR47

SR57

SR58

CSR

60SR

64

Lab

num

ber

D57

3837

D57

3838

D57

3839

D57

3840

D57

3843

D57

3844

D57

3848

D57

3849

D57

3850

D57

3851

D57

3853

D57

3854

D57

3855

D57

3856

D57

3857

D57

3858

D57

3860

D57

3863

D57

3864

D57

3865

D57

3866

D57

3867

D57

3868

Roc

k un

itTs

uTs

uTs

uTa

dT

su Tsu

Tsu

Tsu

Tsu

Tsu Tsl

Tsl

Tmd

Tsl

Tsl

Tds

Tsl

Tsl

Tpd

Tmd

Tm

dTs

uTs

u

Ass

embl

age

QSP

AR

GQ

SP-K

QSP

QSP

-KQ

AW

-AS

CH

L-P

QSP

-KW

-AS

AR

GQ

SP-K

QSP

-KA

RG

QSP

W-A

SQ

SPA

RG

QA

QSP

QSP

QSP

QSP

AL

%-S

9.90

11.0

08.

409.

507.

709.

809.

509.

9010

.00

9.40

7.90

9.50

8.20

6.80

6.30

7.90

11.0

07.

602.

408.

408.

109.

607.

90

CA

%

-S0.

030.

100.

100.

150.

090.

140.

130.

250.

050.

430.

110.

060.

070.

230.

090.

250.

090.

030.

220.

050.

030.

100.

02

FE

%-S

5.20

0.75

0.49

0.24

0.98

0.94

7.40

8.00

1.50

5.60

8.70

5.50

2.70

3.20

1.00

0.57

0.37

3.30

8.30

2.20

2.10

0.52

2.20

K

%-S

3.90

0.93

2.70

3.70

2.50

3.60

1.70

2.30

4.40

2.50

0.15

2.80

2.00

0.35

2.30

2.60

3.50

0.03

0.66

3.30

3.00

3.60

2.50

MG

%

-S0.

500.

380.

640.

230.

480.

013.

102.

700.

462.

400.

020.

460.

220.

010.

310.

340.

250.

010.

100.

530.

070.

330.

45

NA

%

-S0.

140.

220.

140.

240.

080.

492.

201.

600.

120.

870.

040.

070.

420.

790.

031.

900.

560.

020.

080.

060.

100.

250.

44

P %

-S0.

100.

160.

110.

120.

100.

200.

110.

200.

020.

210.

180.

160.

100.

140.

040.

070.

070.

050.

320.

080.

080.

030.

02

TI

%-S

0.15

0.35

0.17

0.17

0.08

0.21

0.26

0.39

0.31

0.27

0.78

0.69

0.19

0.28

0.11

0.15

0.56

0.47

0.64

0.36

0.08

0.15

0.75

Page 26: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIE

LD

ID

MN

PPM

-S

AG

PPM

-S

AS

PPM

-S

AU

PPM

-S

B P

PM-S

B

A P

PM-S

B

E P

PM-S

B

I PPM

-S

CD

PPM

-S

CE

PPM

-S

CO

PPM

-SSK

69A

15

0 <

2

10

<8

- 53

1

< 10

<

2

22

32SK

69D

80

<

2

< 10

<

8 -

520

1 <

10

<2

80

<1

SK70

A

130

<2

<10

<

8 -

680

2 <

10

<2

52

<1

SK71

36

<

2

<10

<

8 -

460

<1

< 10

<

2

38

<1

SK74

A

60

<2

< 10

<

8 -

350

1 <

10

<2

49

<1

SK74

B

15

<2

<10

<

8 -

55

<1

< 10

<

2

81

5SK

81A

18

00

<2

<10

<

8 -

130

1 <

10

<2

48

32SK

82A

22

00

<2

< 10

<

8 -

74

1 <

10

<2

51

36SK

86A

16

0 <

2

< 10

<

8 -

2100

1

< 10

<

2

19

<1

SK86

B

990

<2

< 10

<

8 -

630

1 <

10

<2

35

9SR

11

10

<2

<10

<

8 -

100

<1

<10

<

2

57

33SR

13B

14

0 <

2

17

<8

- 40

1

< 10

<

2

40

23SR

15

33

<2

<10

<

8 -

620

1 <

10

<2

37

3SR

18

10

<2

<10

<

8 -

55

<1

< 10

<

2

31

11SR

19

63

<2

<10

<

8 -

1200

1

< 10

<

2

59

1SR

20

36

<2

<10

<

8 -

600

2 <

10

<2

62

<1

SR24

27

<

2

<10

<

8 -

590

2 <

10

<2

21

<1

SR46

7

<2

<10

<

8 -

47

<1

<10

<

2

25

6SR

47

250

<2

45

<8

- 16

0 1

<10

<

2

93

10SR

57

53

<2

11

<8

- 22

0 2

< 10

<

2

81

4SR

58C

14

<

2

12

<8

- 46

<

1 <

10

<2

5 8

SR60

15

<

2

<10

<

8 -

180

1 <

10

<2

36

<1

SR64

66

<

2

<10

<

8 -

63

2 <

10

<2

19

7to

to

Page 27: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIE

LD

IDSK

69A

SK69

DSK

70A

SK71

SK74

ASK

74B

SK81

ASK

82A

SK86

ASK

86B

SR11

SR13

BSR

I 5SR

I 8SR

I 9SR

20SR

24SR

46SR

47SR

57SR

58C

SR60

SR64

CR

PPM

-S 11 0.7

0.7 25 6 11 0.7

0.7 2 3 11 2 13 3 4 14 29 2 33 12 4 13 8

CU

PPM

-S 39 6 4 12 8 5 36 21 18 40 51 23 13 22 8 4 5 12 18 18 14 15 19

EU

PPM

-S

GA

PPM

-SG

EPP

M-S

HO

PPM

-S

LA

PPM

-SL

IPPM

-S

MO

PPM

-SN

BPP

M-S

N

DPP

M-S

N

IPPM

-S<

2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

<2

21 32 18 22 17 23 25 25 25 21 14 19 17 11 13 16 26 13 40 19 18 22 19

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

<4

10.0

44.0

31.0

23.0

28.0

39.0

24.0

25.0

11.0

18.0

30.0

20.0

18.0

18.0

42.0

40.0 9.0

12.0

58.0

46.0 4.0

18.0

10.0

<2 9 3 2 4 <2

17 9 5 17 120 9 7 11 <2 3 <2

44 <2 8 38 3 3

<2

<2

<2

<2 4 <2

<2

<2 5 18 <2

<2

<2

<2

<2

<2

<2

<2

<2

<2 8 <2

<2

12 16 13 14 11 14 12 12 14 13 17 20 14 11 15 11 20 15 9 16 10 13 22

11 37 28 16 24 44 29 31 9 23 32 21 23 15 20 26 12 12 30 38 2.8 20 12

22 <2

<2

<2

<2 3 4 5 <2 4 25 3 3 3 <2

<2

<2

<2 6 <2

<2

<2 3

Page 28: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 2

. (c

ont'd

)

FIE

LD

IDSK

69A

SK69

DSK

70A

SK71

SK74

ASK

74B

SK81

ASK

82A

SK86

ASK

86B

SR11

SR13

BSR

I 5SR

I 8SR

I 9SR

20SR

24SR

46SR

47SR

57SR

58C

SR60

SR64

PB P

PM-S

SC

PPM

-S

SN P

PM-S

SR

PPM

-S

TA P

PM-S

T

H P

PM-S

28 96 32 31 310 23 16 15 87 29 70 19 27 120 17 29 24 11 19 23 110 29 20

15 11 11 15 7 7 19 20 16 16 7 16 11 4 3 6 14 5 9 18 6 14 10

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

<5

43 540

410

290

620

1200 95 11

0 58 210

1900 24 230

2000 39 21

016

077

014

00 24 36 62 46

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40 <40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<40

<4 9 <4 9 18 11 6 5 4 6 4 <4 8 4 23 14 5 <4 18 14 <4 15 4

U P

PM-S

V

PPM

-S<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00<1

00

160 81 63 140 60 180

210

240

170

170

180

220

230

150 27 51 240 80 130

160

100

150

170

W P

PM-S

Y P

PM-S 2 4 5 2 7 6 6 7 3 9 <2 4 13 3 9 5 3 <2 2 7 <2 8 <2

YB

PPM

-S[-S c 1

cl cl c 1

cl cl c 1

cl c 1

cl c 1

c 1

cl c 1 1 cl c 1

cl cl c 1

cl 1 c 1

ZN P

PM-S 16 15 25 12 25 <2

110

150 58 290 3 79 12 2 14 15 3 3 31 6 <2 3 46

to

Page 29: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 3

. W

ater

geo

chem

ical

dat

a fo

r the

Iro

n, A

lum

, and

Bitt

er C

reek

are

as.

[Maj

or io

ns u

sed

filte

red

ICP-

AES

unl

ess

belo

w li

mit;

if b

elow

lim

it us

ed IC

P-M

S da

ta.

Ani

ons

repo

rted

from

unf

ilter

ed d

ata.

Tra

ce e

lem

ents

from

filte

red

ICP-

MS

data

. Se

e m

etho

dolo

gy s

ectio

n fo

r mor

e de

tails

uS

/cm

is m

icro

siem

ens

per c

entim

eter

.]

Sam

ple

# T

ype

Lat

(dec

)Lo

ng, (

dec)

pH

Sp. C

ond

(uS/

cm)

Dis

.O2(

mg/

l)

Tem

p(°C

) Fe

2+(m

g/l)

Fe

-Tot

(ppm

) A

l3+

(ppm

)K

1+(p

pm)

TM

T-0

8T

MT

-09

TM

T-1

0TM

T-11

TM

T-1

2T

MT

-13

TM

T-1

4T

MT

-15

TM

T-1

5ST

MT

-16

TM

T-1

7T

MT

-18

TM

T-1

9T

MT

-20

TMT-

21T

MT

-22

TM

T-2

3T

MT

-24

TM

T-2

5T

MT

-26

TM

T-2

7T

MT

-28

TM

T-2

9T

MT

-30

TMT-

31T

MT

-32

TM

T-3

3T

MT

-34

TM

T-3

5T

MT

-36

TM

T-3

7T

MT

-38

TM

T-3

9T

MT

-40

TMT-

41T

MT

-42

TM

T-4

3T

MT

-44

TM

T-4

5T

MT

-46

TM

T-4

7T

MT

-48

TM

T-4

9T

MT

-50

TMT-

51T

MT

-52

stre

amsp

ring

spri

ngsp

ring

spri

ngst

ream

spri

ngst

ream

stre

amst

ream

spri

ngst

rean

adit

spri

ngsp

ring

spri

ngsp

ring

stre

amst

ream

stre

amad

itsp

ring

spri

ngsp

ring

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

spri

ngst

ream

spri

ngsp

ring

spri

ngst

ream

stre

am5,

ling

spri

ngst

ream

37.4

0927

194

37.4

1515

861

37.4

0910

778

37.4

1095

778

37.4

1123

972

37.3

9495

2537

.401

7586

137

.404

6530

637

.404

6530

637

.403

8458

337

.403

8477

837

.399

2075

37.3

8962

917

37.3

9790

806

37.3

9844

694

37.4

0416

722

37.4

1266

056

37.3

8808

111

37.3

8493

056

37.3

7722

889

37.3

7634

694

37.3

8829

278

37.3

8821

722

37.3

8720

806

37.3

9010

2537

.393

9758

337

.394

9091

737

.396

2027

837

.390

7183

337

.390

3836

137

.392

1886

137

.389

4425

37.3

8767

667

37.3

8792

083

37.3

8549

222

37.3

7221

833

37.3

7688

611

37.3

8183

167

37.3

7634

7537

.384

1288

937

.387

6388

937

.389

2838

937

.385

4980

637

.389

3038

937

.392

1630

637

.395

1961

1

-106

.571

206

-106

.570

856

-106

.556

136

-106

.562

142

-106

.548

454

-106

.551

935

-106

.552

559

-106

.554

632

-106

.554

632

-106

.570

584

-106

.568

092

-106

.555

924

-106

.561

549

-106

.591

343

-106

.586

854

-106

.589

9-1

06.5

8611

1-1

06.5

6286

-106

.566

061

-106

.582

049

-106

.567

889

-106

.581

25-1

06.5

8219

3-1

06.5

8850

6-1

06.5

8658

1-1

06.5

8952

6-1

06.5

8408

-106

.581

241

-106

.578

072

-106

.578

424

-106

.571

764

-106

.573

567

-106

.572

517

-106

.574

107

-106

.570

746

-106

.583

325

-106

.593

948

-106

.602

218

-106

.614

325

-106

.623

632

-106

.615

437

-106

.622

674

-106

.607

511

-106

.599

356

-106

.599

929

-106

.604

109

7.37

6.21

6.85

6.41

3.03

3.38

6.24

3.16

2.91

3.42

3.34

3.64

6.71

2.59

4.69

6.17

6.13

3.59

2.83

3.23 6.6

2.84

2.34

6.94 6.4

5.44

3.01

2.74

2.88

3.22

3.63

2.28

2.38

2.76

2.79

3.44

2.91 3.5

4.75

4.22

3.37

2.94

3.43

4.93 2.3

3.5

50 40 20 710

570

450

380

980

870

160

550

240

760

1380 20 30 90 400

1720

530

270

1430

2540 20 10 20 560

1130

960

1390 90

1086

052

4016

4016

3038

086

031

059

050 45

011

5042

040 3870

370

7 3 7 0 ? 7 4 5 ? 7 5 9 0.1

>12 7 7 6 4 >12 7 >12 4 >12 6 3.1

3.1

5.3

12.2 10 13 4.7

8.9

12.4

9.8

10.1

7.1

9.8

9.9

10.9

5.1

13.9

10.7

7.9

7.7

3.2

10.4

10 5 4.7

8.5

9.1

8.7

8.5

13.3 ? 7.1

8.2

10.6

7.2

13.1

8.7 4 6 8.6

10.5

16.1

5.1

5.4

6.4

3.1

n.d. 3.1

5.3

12.2 10 13 4.7

8.9

12.4

9.8

10.1

7.1

9.8

9.9

10.9

5.1

13.9

10.7

7.9

7.7

3.2

10.4

0.01

0.01

0.01 36 13.5

5.65 0 54 23 1 25 4.25

10.4 2

0.05

0.01

0.01 3.9

95.5

2.16

0.62 135 5

0.01 ltd

0.02

20.5

48.5 13 44 0.07

1590 99 126.

512

34.

226 3.

225

.50.

01 1.3

1.5

2.5

0.02 575

1.6

1.3

0.09

22.

640 18 8.

20.

52 66 42 1.4

34 5.1

7.5 54 0.06

0.08

<0.

035.

216

03.

40.

57 130

150

0.07 n.d

1.2

22 100

36 53 0.16

1900

1000

200

170

9.3 39 4.7

31 0.05 2.1 28 5.9

0.42 850

3.4

0.15

0.06

30.

370.

02 8 6.3

0.62 16 25 2.5

6.2 4

0.00

719

0.02

50.

02<

0.00

77.

661 8

0.03

170 66 0.01 ltd

0.32 18 27 21 27 2.2

390

200

70 61 9.7 14 7.2

2.6

1.3

3.9

21 5.2

0.14

340

5.5

1.5

1.4

0.48 38 4.9

8.2 11 20 17 1.1 12 5.7

28 0.68

0.12

0.55 1 13 27 8.5

7.6 11 2.5

0.4

n.d

0.3

0.49 14 12 53 0.49 130

83 23 25 4.8

4.3

3.5 19 1 8.4

98 9.5

0.54 2.9 4

0.2

0.22 1 1.9

2.1

1.3

0.74 2 1.6

0.57 1.6

1.2

2.1

0.38

0.31 2.4

0.65 2 2.5

1.7

0.76 1.2

0.02 2.3

n.d

1.3

1.1

1.4

1.7

2.3

0.48 4.8

0.1

2.7

2.6 2 3.6

1.1

1.9

0.33 1.1

1.4

1.1 1

0.15 1.2

Page 30: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

to

Sam

ple

#

TM

T-0

8T

MT

-09

TM

T-1

0T

MT

-11

TM

T-1

2T

MT

-13

TM

T-1

4T

MT

-15

TM

T-1

5ST

MT

-16

TM

T-1

7T

MT

-18

TM

T-1

9T

MT

-20

TM

T-2

1T

MT

-22

TM

T-2

3T

MT

-24

TM

T-2

5T

MT

-26

TM

T-2

7T

MT

-28

TM

T-2

9T

MT

-30

TM

T-3

1T

MT

-32

TM

T-3

3T

MT

-34

TM

T-3

5T

MT

-36

TM

T-3

7T

MT

-38

TM

T-3

9T

MT

-40

TM

T-4

1T

MT

-42

TM

T-4

3T

MT

-44

TM

T-4

5T

MT

-46

TM

T-4

7T

MT

-48

TM

T-4

9T

MT

-50

TM

T-5

1T

MT

-52

Typ

e

stre

amsp

ring

spri

ngsp

ring

spri

ngst

ream

spri

ngst

ream

stre

amst

ream

spri

ngst

ream

adit

spri

ngsp

ring

spri

ngsp

ring

stre

amst

ream

stre

amad

itsp

ring

spri

ngsp

ring

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

spri

ngst

ream

spri

ngsp

ring

spri

ngst

ream

stre

amsp

ring

spri

ngst

ream

Lat

. (d

ec)

37.4

0927

194

37.4

1515

861

37.4

0910

778

37.4

1095

778

37.4

1123

972

37.3

9495

2537

.401

7586

137

.404

6530

637

.404

6530

637

.403

8458

337

.403

8477

837

.399

2075

37.3

8962

917

37.3

9790

806

37.3

9844

694

37.4

0416

722

37.4

1266

056

37.3

8808

111

37.3

8493

056

37.3

7722

889

37.3

7634

694

37.3

8829

278

37.3

8821

722

37.3

8720

806

37.3

9010

2537

.393

9758

337

.394

9091

737

.396

2027

837

.390

7183

337

.390

3836

137

.392

1886

137

.389

4425

37.3

8767

667

37.3

8792

083

37.3

8549

222

37.3

7221

833

37.3

7688

611

37.3

8183

167

37.3

7634

7537

.384

1288

937

.387

6388

937

.389

2838

937

.385

4980

637

.389

3038

937

.392

1630

637

.395

1961

1

Lon

g, (

dec)

-106

.571

2058

-106

.570

8561

-106

.556

1358

-106

.562

1419

-106

.548

4544

-106

.551

935

-106

.552

5594

-106

.554

6317

-106

.554

6317

-106

.570

5839

-106

.568

0917

-106

.555

9244

-106

.561

5492

-106

.591

3431

-106

.586

8539

-106

.589

8997

-106

.586

1111

-106

.562

8603

-106

.566

0606

-106

.582

0494

-106

.567

8889

-106

.581

25-1

06.5

8219

31-1

06.5

8850

64-1

06.5

8658

06-1

06.5

8952

61-1

06.5

8407

97-1

06.5

8124

14-1

06.5

7807

22-1

06.5

7842

39-1

06.5

7176

44-1

06.5

7356

67-1

06.5

7251

72-1

06.5

7410

67-1

06.5

7074

61-1

06.5

8332

5-1

06.5

9394

83-1

06.6

0221

83-1

06.6

1432

5-1

06.6

2363

17-1

06.6

1543

67-1

06.6

2267

44-1

06.6

0751

14-1

06.5

9935

64-1

06.5

9992

94-1

06.6

0410

92

Mn(

ppm

) C

a :

0.02

40.

013

0.04

6 30.

371

0.01

33.

5 30.

13 1.7

0.59

0.89

0.14

0.01

20.

0096

0.00

21.

25.

60.

780.

89 1.7

0.13

0.00

2n.

d.0.

002

0.02

92.

42.

38.

80.

049 45 24 5.1

5.2

0.68 1.

10.

41 1.7

0.7 3 71 1.7

0.00

510.

160.

69

z+(p

pm)

Na

8.4

9.1

2.3 81 11 25 46 72 51 3.5 37 19 96 4

0.8

3.5 12 30 63 15 36 13 4.3

2.3

n.d. 2.6

1.5 16 25 120

2.3

150

120 50 58 18 11 13 72 2.8 15 100 21 2.5

4.9 13

1+(p

pm)

Si

2.4

2.4 3

5.1

4.8

3.6

6.9

5.7

3.6

2.3

5.1

3.4

5.5

3.3

1.3

1.9

2.2

2.8

3.7 3

2.8

2.9

2.4

2.8

n.d. 1.9

1.4

1.9

3.1

5.7

1.3 2

1.9

3.5

3.5 4

2.4

3.7

6.6

1.8

3.6

6.3

3.4

1.7

2.1

2.7

^/V

YI^

,^

vr\

f2

(ppm

) oL

/4 (^

3.9

3.8

8.8 15 21 15 9.6 19 10 11 19 15 10 30 3.6 12 2.5 18 35 18 4.4 41 38 15 n.d. 14 27 29 24 32 16 39 30 33 35 17 18 11 15 5.4 14 23 13 8.5 37 12

-) (p

pm)

11 8.8

2.5

343

163

183

177

433

479

53 262

101

321

328

4.8

3.2 21 167

1024 83 11

710

1040

71.

0n.

d. 8.7

197

323

400

847 25

1340

047

9018

6010

90 146

310

170

306

23 138

1050

161 12

9250 12

1

Cr

(ppm

)

<0.

10.

140.

27 0.58

0.55

0.34

0.52 0.43

0.39

0.21

0.42

0.14 0.

70.

380.

140.

23 1.0

0.42

0.62

0.32 0.

3<

11.

10.

19 0.18

0.22

0.43

0.36

0.38

0.18 3.6 2.5 1

0.76

0.30

0.40

0.27 0.47

0.14 0.36 2.

2<

0.1

0.19 3.

60.

240.

22

F(p

pm)

P0

4(3

-)(p

pm)

0.07

<

1<

0.05

<

10.

23

< 1

1.2

<1

0.32

<

10.

54

< 1

0.57

<

12.

4 <

10.

5 <

10.

15

<1

0.39

<

10.

15

<1

0.76

<

10.

40

< 1

< 0.

05

< 1

< 0.

05

< 1

< 0.

05

< 1

0.33

<

11.

8 <

10.

49

< 1

0.37

<

11.

8 <

10.

88

< 1

< 0

.05

< 1

0.06

<

10.

06

< 1

0.49

<

10.

61

< 1

1.5

<1

0.07

<

18.

4 <

106.

9 <

11.

4 <

12.

2 <

10.

32

< 1

0.22

<

10.

27

< 1

0.6

<1

0.07

<

10.

63

< 1

1.2

<1

0.48

<

1<

0.0

5 <

12.

7 <

10.

31

< 1

0.16

<

1

Pbp

pb

<0.

4<

0.1

0.1

<0.

4<

0.1

<0.

40.

6 1.2

0.5

0.6 0.1

0.1

<0.

4<

0.4

<0.

3<

0.4

<0.

41.

2 2.4

<0.

4<

0.4

<0.

4<

0.3

<0.

4<

0.1

<0.

11.

70.

82.

6 0.3 26

<0.

44.

3 3.2

<0.

1<

0.4

<0.

3<

0.4

<0.

4<

0.4

<0.

4<

0.4

<0.

4<

0.1

<0.

4<

0.1

Znp

pb 6.7 <6 7

30 50 91 <2

150

180

67 120 51 3

310 4.1

6.1 <2

89 550

90 94 610

420

<2

<6

50 240

270

590 10

2700

2400 53

056

0 6019

0 45 29 21 110

1500 94 <

215

075

6

Page 31: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Sam

ple

# T

ype

to

TM

T-0

8T

MT

-09

TM

T-1

0T

MT

-11

TM

T-1

2T

MT

-13

TM

T-1

4T

MT

-15

TM

T-1

5ST

MT

-16

TM

T-1

7T

MT

-18

TM

T-1

9T

MT

-20

TM

T-2

1T

MT

-22

TM

T-2

3T

MT

-24

TM

T-2

5T

MT

-26

TM

T-2

7T

MT

-28

TM

T-2

9T

MT

-30

TM

T-3

1T

MT

-32

TM

T-3

3T

MT

-34

TM

T-3

5T

MT

-36

TM

T-3

7T

MT

-38

TM

T-3

9T

MT

-40

TM

T-4

1T

MT

-42

TM

T-4

3T

MT

-44

TM

T-4

5T

MT

-46

TM

T-4

7T

MT

-48

TM

T-4

9T

MT

-50

TM

T-5

1T

MT

-52

stre

amsp

ring

spri

ngsp

ring

spri

ngst

ream

spri

ngst

ream

stre

amst

ream

spri

ngst

ream

adit

spri

ngsp

ring

spri

ngsp

ring

stre

amst

ream

stre

amad

itsp

ring

spri

ngsp

ring

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

spri

ngst

ream

spri

ngsp

ring

spri

ngst

ream

stre

amsp

ring

spri

ngst

ream

Lat.

(dec)

37.4

0927

194

37.41515861

37.4

0910

778

37.4

1095

778

37.41123972

37.3

9495

2537.40175861

37.40465306

37.40465306

37.4

0384

583

37.40384778

37.3992075

37.38962917

37.3

9790

806

37.3

9844

694

37.40416722

37.41266056

37.38808111

37.38493056

37.3

7722

889

37.37634694

37.3

8829

278

37.38821722

37.38720806

37.3

9010

2537

.393

9758

337.39490917

37.39620278

37.39071833

37.39038361

37.39218861

37.3

8944

2537.38767667

37.3

8792

083

37.38549222

37.3

7221

833

37.3

7688

611

37.38183167

37.3

7634

7537

.384

1288

937

.387

6388

937

.389

2838

937.38549806

37.38930389

37.39216306

37.3

9519

611

Long

, (dec)

-106.5712058

-106.5708561

-106.5561358

-106.5621419

-106

.548

4544

-106.551935

-106

.552

5594

-106.5546317

-106.5546317

-106.5705839

-106.5680917

-106

.555

9244

-106.5615492

-106

.591

3431

-106

.586

8539

-106.5898997

-106.5861111

-106

.562

8603

-106.5660606

-106

.582

0494

-106.5678889

-106.58125

-106.5821931

-106.5885064

-106

.586

5806

-106.5895261

-106

.584

0797

-106

.581

2414

-106

.578

0722

-106

.578

4239

-106

.571

7644

-106.5735667

-106

.572

5172

-106.5741067

-106

.570

7461

-106

.583

325

-106.5939483

-106.6022183

-106

.614

325

-106

.623

6317

-106

.615

4367

-106

.622

6744

-106.6075114

-106

.599

3564

-106

.599

9294

-106

.604

1092

Cuppb 3 23 4.5 1 1.8

19<0

.9 47 200

3.0 12 5.4

<0.9 96 <1 1

<0.9 12 220

30 19 6513

00<0

.95

4.2

250 52 130 3.4

2000

1100 170

220 24

3.0 29

<0.9 3 21 110 20 0.9

1800 10 0.79

Cdppb

0.9

<0.4

<0.4 0.7

<0.4 0.9

0.7 0.7 2

<0.4

<0.4

<0.4 0.5 2

<0.8 1

0.7 1 6.7

0.8

0.9 15 14

0.8

<0.4

<0.4 6.1

2.2

5.7

<0.4 29 24 8.1 6.8

<0.4 0.5

<0.8 0.6

0.9

0.9

5.4 1

0.7 1.8

0.6

<0.4

Nipp

b

<1

<0.5 0.6

5.2 4.3

9.6 2 16 20

4.0 11 4.9

5.6 31 0.3

<1

<1

9.2 78 14 4.0

110

110

<1 0.7

15 17 31 722

280

180 68 75 12 26 8.6

12 2 13 130 12 <1

180

7.2 1

Coppb

0.59 0.4

0.98 27 13 28 0.3 56 66

6.4 27 12

5.0

77 0.6

<0.1 0.2 16 150

29 3.3

210

200

<0.1

0.61 37 66 67 150 2.6

530

330

130

150 22 53 14 24 4.0

34 420 27

0.92 390

19 0.3

Moppb

<0.2

<0.1 0.3

<0.2

<0.1

<0.2

<0.2

<0.1 0.3

<0.2

<0.1

<0.1 0.4

<0.2

<0.1

<0.2

<0.2

<0.2 0.8

<0.2 0.5

<0.2 0.3

<0.2

<0.1

<0.1

0.70

<0.2

0.4

<0.1 130

200.

771

<0.1

<0.2

<0.1

<0.2

<0.2

<0.2

<0.2

<0.2

<0.2 0.9

<0.2

<0.1

Gppb

<2

<0.

9<

0.9

<2

<0.

9 <

2

<2

<0.

9 2<

2<

0.9

<0.

9 <

2

<2

<0.

7<

2<

2<

27.

5<

2<

2 4 17 <2

<0.

90.

9<

2 2 2<

0.9 54 23 6 6.5

<0.

9 <

2

0.8

<2

<2

<2

<2

<2

<2

31

<2

<0.

9

As

ppb

Sb p

pb

Ag

ppb

<0.

9 <

0.1

<0.

1

<0.

9<

1<

0.9

<0.

9<

1<

0.9

<0.

9 1<

1

27<

0.9

<0.

9 <

0.9

<0.

9 <

0.9

5.3

<0.

9 1 1 1<

0.9

<1 2 1

<0.

9 2 <1 44 29 9.0 6.4

<1

<0.

9<

0.9

<0.

9<

0.9

<0.

9<

0.9

<0.

9<

0.9 60

<0.

9

0.2

0.1 0.5

0.1

0.1

0.4 0.1

0.3

0.2

<0.

1 0.

2 0.

7 0.

1 0.3

0.1 0.1

0.2

<0.

10.

2 <

0.1

<0.

10.

3 <

0.1

0.3

Srp

pb 60 46 1249

0 4213

030

034

034

044 78 88

1700 89 12 27 11

011

023

073 14

014

018

016 17 53 110

140

550 16

290

230

190

230

140

91 160

160 19 130

540

130 24 530

94 110

Page 32: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Sam

ple

#T

MT

-53

TM

T-5

4T

MT

-55

TM

T-5

6T

MT

-57

TM

T-5

8T

MT

-59

TM

T-6

0T

MT

-61

TM

T-6

2T

MT

-63

TM

T-6

4T

MT

-65

Typ

est

ream

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

Lat

. (d

ec)

37.3

9593

472

37.4

0391

278

37.4

0990

778

37.4

1552

056

37.4

0369

944

37.4

0360

694

37.3

9055

944

37.4

1079

278

37.4

0180

861

37.4

0373

694

37.3

9733

861

37.3

9046

694

37.3

9522

444

Lon

g, (

dec)

-106

.606

0078

-106

.598

0164

-106

.606

0814

-106

.606

9056

-106

.614

4556

-106

.615

3781

-106

.606

3675

-106

.623

0367

-106

.626

9361

-106

.646

7539

-106

.649

4178

-106

.607

4139

-106

.615

4733

pH

Sp. C

ond.

(uS

/cm

) D

is7.

285.

324.

466.

39 7.2

7.16

3.75

7.22

3.64

7.29

7.26

6.77

5.02

100 80 280 30 70 70 300 60 260 50 50 120

160

. 02

(mg/

1)

Tem

p (°

C)

Fe2

+ (m

g/1)

Fe

-Tot

(pp

m)

Al *

* (p

pm)

Mg

2+(p

pm)

K1.

11 3.8

3.8

4.2

12.8

17.8

15.1 7.8

6.7

9.6

10.7 7.5 15

1.11 3.

83.

84.

212

.817

.815

.1 7.8

6.7

9.6

10.7 7.5 15

0.07

0.03 8.

40.

020.

020.

012.

430.

33 5.2

0.06

0.05

0.46 3.

8

0.24

0.11 7.

7<

0.03

0.04

0.07

64.

50.

51 4.7

0.23

0.14

0.74 3.3

0.07

30.

11.

30.

020.

020.

014

6.3

0.05

74.

20.

039

0.02

60.

020.

63

2.1

0.76 1.

20.

39 1.1 1

3.1

1.3 1

0.87

0.74 2.

62.

4

u(p

pm)

1.4

7.2

2.2

0.68 1.

40.

32 1.6

0.74

10.

22 0.5

0.61

0.28

00

Page 33: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Sam

ple

#T

MT

-53

TM

T-5

4T

MT

-55

TM

T-5

6T

MT

-57

TM

T-5

8T

MT

-59

TM

T-6

0T

MT

-61

TM

T-6

2T

MT

-63

TM

T-6

4T

MT

-65

Typ

est

ream

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

Lat

. (d

ec)

37.3

9593

472

37.4

0391

278

37.4

0990

778

37.4

1552

056

37.4

0369

944

37.4

0360

694

37.3

9055

944

37.4

1079

278

37.4

0180

861

37.4

0373

694

37.3

9733

861

37.3

9046

694

37.3

9522

444

Lon

g, (

dec)

-106

.606

0078

-106

.598

0164

-106

.606

0814

-106

.606

9056

-106

.614

4556

-106

.615

3781

-106

.606

3675

-106

.623

0367

-106

.626

9361

-106

.646

7539

-106

.649

4178

-106

.607

4139

-106

.615

4733

Mn

(ppm

) C

a0.

024

0.03

2 10.

0006

0.06

50.

0098

0.27

0.01

80.

082

0.02

0.01

10.

270.

19

2+(p

pm)

Na

1+(p

pm)

Si'

12 4.7

9.5 3

6.2

6.1 15 5.3

5.4

7.8

5.8 11 13

4.8

4.8 11 3.5

4.7

3.2

4.5

7.7

2.7

3.3

3.2

2.6

3.7

(ppm

) SO

4 (

) (p

pm)

Cl

(ppm

)11 21 20 8.1

9.5

4.7 13 2.9 10 5.1

3.8

3.8

5.8

32 29 83 2.3 21 21 94

2.1 65 1.5

1.1

41 63

0.27

0.40

0.23

0.13

0.27 0.25

0.18 1.

1<

0.1

<0.

10.

260.

200.

14

F(p

pm)

P0

4(3

-)(p

pm)

Pbp

pb0.

10.

53<

0.05

0.11

0.06 0.26

0.06 0.

1<

0.05

0.05

0.08

0.16

<0.

05

<1

<0.

1<

1 <

0.4

< 1

< 0.

4<

1 <

0.4

< 1

< 0.

3<

1 <

0.1

< 1

< 0.

4<

1 <

0.4

<1

<

0.1

< 1

< 0.

4<

1 <

0.4

< 1

< 0.

3<

1 <

0.4

Znp

pb 1073

0 <2

120 3.3 32 <2

24 <6

<2

12 16 <2

to

Page 34: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Sam

ple

#T

MT

-53

TM

T-5

4T

MT

-55

TM

T-5

6T

MT

-57

TM

T-5

8T

MT

-59

TM

T-6

0T

MT

-61

TM

T-6

2T

MT

-63

TM

T-6

4T

MT

-65

Typ

est

ream

spri

ngsp

ring

spri

ngst

ream

stre

amst

ream

spri

ngsp

ring

stre

amst

ream

stre

amst

ream

Lat

. (d

ec)

37.3

9593

472

37.4

0391

278

37.4

0990

778

37.4

1552

056

37.4

0369

944

37.4

0360

694

37.3

9055

944

37.4

1079

278

37.4

0180

861

37.4

0373

694

37.3

9733

861

37.3

9046

694

37.3

9522

444

Lon

g, (

dec)

-106

.606

0078

-106

.598

0164

-106

.606

0814

-106

.606

9056

-106

.614

4556

-106

.615

3781

-106

.606

3675

-106

.623

0367

-106

.626

9361

-106

.646

7539

-106

.649

4178

-106

.607

4139

-106

.615

4733

Cup

pb 0.5

<0.

9<

0.9

<0.

9 126

<0.

946 19

<0.

9 1<

114

Cdp

pb<

0.4

0.6

0.6 1

<0.

8<

0.4

0.7

0.6

<0.

40.

60.

6<

0.8 1

Nip

pb4

16 <1 2 0.4

6.2 1

5.5

<0.

5<

1 1 1.8

<1

Cop

pb 0.5

9.2

0.1

0.53 0.

2 100.

40 15 0.3

0.3

1.1 1.3

0.2

Mop

pb<

0.1

<0.2

<0.

2<

0.2

<0.

1<

0.1

<0.2

<0.2 0.2

<0.

2<

0.2

<0.

1<

0.2

Qrp

pb<

0.9

<2

<2

<2

<0.

7<

0.9

<2

<2

<0.

9<

2<

2<

0.7

<2

Asp

pb <1 2

<0.

9<

0.9

<0.

9<

1<

0.9

7.0 <1

<0.

9<

0.9

<0.

9<

0.9

Sbp

pb<

0.1

<0.

10.

2<

0.1

<0.

1<

0.1

<0.

10.

7<

0.1

<0.

1<

0.1

<0.

10.

2

Srppb 47

140 33

69

91

130

40

62

48

65

140

200

100

Page 35: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

Tab

le 4

. G

eom

etri

c m

ean

of w

ater

s dr

aini

ng s

peci

fic

alte

ratio

n as

sem

blag

es.

N r

epre

sent

s nu

mbe

r of

sam

ples

. Se

e pl

ate

5 fo

r de

scri

ptio

n of

alte

ratio

n as

sem

blag

es.

Not

e: p

H d

enot

es m

edia

n va

lue.

Alt

erat

ion

asse

mbl

age

N PH Sp. C

ond.

(uS

/cm

)Fe

-Tot

(pp

m)

Al3

+(p

pm)

Mg

^ (P

Pm)

K1+

(ppm

)

Mn

(ppm

)C

a^C

ppm

)N

a1+

(ppm

)Si

4+(p

pm)

S04

("-)

(ppm

)C

r (p

pm)

F- (

ppm

)P

04 ("

-) (p

pm)

Pb (

ppb)

Zn (p

pb)

Cu(

ppb

Cd

(ppb

)N

i (pp

b)C

o (p

pb)

Mo

(ppb

)C

r (p

pb)

Zn+C

u+C

d+Pb

+C

o+N

i

AR

G 3

2.59

597.

7926

.81

9.67

1.02

0.38

0.05

3.66

2.28

21.1

333

1.44

0.64

0.34

0.70

0.18

40.2

353

.78

1.36

15.7

530

.23

0.26

3.93

185.

47

F 2

6.56

24.4

90.

070.

010.

472.

350.

002.

842.

3113

.42

1.79

0.21

0.04

0.70

0.28

2.92

0.79

0.89

0.70

0.07

0.14

1.40

5.96

PRO

P Q

A+

SIL

Q

SP

»QS

P-K

15

6.77

87.8

10.

250.

061.

500.

510.

029.

143.

354.

8113

.69

0.19

0.08

0.70

0.24

5.57

2.45

0.63

1.02

0.53

0.14

1.09

15.1

9

1

5.44

20.0

01.

200.

320.

301.

300.

002.

601.

9014

.00

8.70

0.18

0.06

0.70

0.07

4.20

5.00

0.28

0.70

0.61

0.07

0.63

10.8

6

4

2.78

1914

.95

187.

0465

.08

27.5

11.

056.

1954

.31

2.91

30.2

014

03.8

90.

911.

900.

701.

3366

2.23

215.

067.

3473

.04

144.

101.

216.

5111

20.6

0

QSP

-K 13

3.22

591.

9711

.48

10.3

85.

760.

880.

8311

.98

2.51

20.3

222

5.02

0.39

0.44

0.84

0.55

148.

9635

.40

2.03

18.6

339

.33

0.26

2.10

276.

02

QSP

-PX

W

-AS

+ F

W-A

S »

PR

OP

2

3.04

923.

3652

.65

20.0

018

.44

1.79

3.24

60.6

04.

5313

.78

455.

420.

411.

100.

700.

7716

4.32

96.9

51.

1817

.89

60.7

90.

141.

1235

6.25

2

6.63

119.

1610

.20

0.09

4.27

1.38

0.37

13.6

53.

9111

.49

29.2

80.

400.

530.

700.

1714

.49

2.12

0.44

1.77

5.14

0.20

0.94

29.3

9

5

4.46

206.

631.

881.

292.

431.

840.

439.

984.

9614

.82

77.3

10.

330.

230.

700.

1646

.71

1.01

0.48

5.81

5.65

0.11

1.02

69.9

4

Page 36: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

FE T

OT

AL

mg/

1C

ON

DU

CT

IVIT

Y

o

Sv^T

^o

pH

NJ

OJ

*.

L/l

O

N

-J

OO

Page 37: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

&TT

O

100000

10000

1000

100

10

-

-

-

K>

A*

ARC

F

^0

A

PROP

*

A*ww

%

!4

QA-SIL

V

QSP

4*+

* ^

QSP-K QSP-PX

0W-AS

F

*

40

* 4

W-AS

PROP

1000

100

10

0.1

0.01

0.001

10000

1*a, a,

£ 1000

100

10a

SI

ALTERATION TYPE

fig. 4

-

"

"

_

tO

ARC

^ &4

F

^

f^ C^

PROP

4

QA-SIL

V

QSP

A4> o*

4

QSP-K QSP-PX

4

0

W-AS

F

*

4

W-AS

PROP

ALTERATION TYPE

fig. 5

-

-

*o

*ARC

O

F

t

I 4

PROP QA-SIL

."

QSP

OA 4

»>

**

QSP-K

4

QSP-PX

^

O

W-AS

F

*

»«o

/W-AS

PROP

ALTERATION TYPE

fig. 6

33

Page 38: By - USGSUpper Alamosa River, southwestern Colorado By Dana J. Bove1 , Anna B.Wilson1 , Thomas H. Barry2, Ken Hon1 , Jeffrey Kurtz3 , R.E. Van Loenen1 , and W.S. Calkin4 Open-File

MODIFIED FIKCLIN PLOT (FICKLIN AND OTHERS, 1992)

10

0.

o.oi

0.001

-High acid,^ high metal

High acid, mod. metal

Aci^ I Near-neutral, moderate metal, moderate metal^

^fckV._ _ I _ *_T_ _

High acid, low metal

Acid, low metal

«++ +*Near-neutral, low metal

-10123456789

pH

34