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.(Nevada Terminal Waste Storage-2) USGS-1543-2
-,-- :: tUNITED STATESDEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
Mail Stop 954, Federal Center, Box 25046: ,' ~Denver, Colorado 80225
GEOLOGY OF THE UE17e DRILL HOLE, AREA 17,:NEVADA TEST SITE
USGS-1543-2 .
-Date published: March 1979
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Prepared by the U.S. Geological Survey
for the
Nevada Operations OfficeU.S. Department of Energy
(Memorandum of Understanding EW-78-A-08-1543)
(Nevada Terminal Waste Storage-2)1979
USGS- 1543-2
UNITED STATESDEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
Mail Stop 954, Federal Center, Box 25046Denver, Colorado 80225
GEOLOGY OF THE UE17e DRILL HOLE, AREA 17,NEVADA TEST SITE
By
J. N. Hodson1 and D. L. Hoover2
lFenix & Scisson, Inc., Mercury, Nev.2U.S. Geological Survey, Denver, Colo.
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Ij
CONTENTS
PageAbstract ---------------------------------------------------------------------------- 1
*1 Introduction---------------------------------------------------------------------------- 1Hole construction----------------------------------------------------------------------- 1Geology-------------------------------------------- ---------------------- _- _____- _____- 3
Stratigraphy----------------------------------------------------------------------- 3Structure…------------------------------------------------------------------------- 5
Engineering geology--------------------------------------------------------------------- 7Core index------------------------------------------------------------------------- 7Fracture analysis------------------------------------------------------------------ 11
Physical properties--------------------------------------------------------------------- 30
;| ILLUSTRATIONS
Page
Figure l.--Index map of Nevada showing location of the Nevada Test Site anddrill hole UE17e----------------------------------------------------------- 2
2.--Pre-Tertiary stratigraphic units of the Syncline Ridge area------------------ 43.--Histogram of core indices in the argillite subunit of unit J,
Eleana Formation, 72.8-914.4-m depth--------------------------------------- 94.--Histograms of core indices in unit J, Eleana Formation, 3.05-
914.4-m depth-------------------------------------------------------------- 105.--Rosette diagram showing fractures per 100-dip interval and fracture
frequencies in all rock types, 3.05-457.05-m depth------------------------- 136.--Rosette diagram showing fractures per 10'dip interval and fracture
| frequencies in all rock types, 457.05-914.4-m depth------------------------ 147.--Rosette diagram showing comparison of number of open and closed
fractures per 10'dip interval, 3.05-229.21-m depth------------------------- 168.--Rosette diagram showing comparison of number of open and closed
fractures per 100-dip interval, 229.21-457.05-m depth---------------------- 179.--Rosette diagram showing comparison of number of open and closed 0
fractures per 100-dip interval 457.05-687.32-m depth----------------------- 1810.--Rosette diagram showing comparison of number of open and closed
fractures per 100dip interval, 687.32-914.4-m depth------------------------ 19ll.--Rosette diagram showing clean and polished fractures per 10'-dip
interval within six depth intervals between 3.05 and 914.4 m--------------- 2112.--Rosette diagram showing clean fractures per 10'-dip interval within
six depth intervals between 3.05 and 914.4 m------------------------------- 2213.--Rosette diagram showing quartz-filled fractures per 100dip interval
within six depth intervals between 3.05 and 914.4 in------------------------ 2414.--Rosette diagram showing calcite-filled fractures per 10'-dip
interval within six depth intervals between 3.05 and 914.4 m--------------- 2515.--Rosette diagram showing calcite-and-quartz-filled fractures per
10'-dip interval within six depth intervals between 3.05 and 914.4 m------- 2616.--Rosette diagram showing clay-filled fractures per 100-dip interval
within six depth intervals between 3.05 and 914.4 m------------------------ 2817.--Rosette diagram showing iron-and-clay-filled fractures and iron-
stained fractures per 100-dip interval, 3.05-152.71-m depth---------------- 29
ii
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TABLES
Page
Table 1. Lithologic log of the UE17e drill hole---------------------------------------- 6
2. Depths at which faults have been logged in UE17e------------------------------ 8
s ~~~~~3. Fractures per 10'-dip interval, UE17e drill hole ------------------------------ 12
4. Total number of open and closed fractures per 100-dip interval---------------- 15
5. Clean and polished fractures and clean fractures per 10'-dip interval--------- 20
6. Quartz-filled, calcite-filled, and calcite-and-quartz-filled fracturesper 100-dip interval-------------------------------------------------------- 23
7. Clay-filled, iron-stained, and iron-and-clay-filled fractures per100-dip interval------------------------------------------------------------ 27
8. Thermal conductivities, at 250 C, and dips measured on core fromUE17e drill hole------------------------------------------------------------ 31
9. Density measurements and water content of core samples from UE17e------------- 32
10. Physical properties from geomechanical measurements on core fromUE17e drill hole------------------------------------------------------------ 33
iii
(Nevada Terminal Waste Storage-2) UNITED STATES USGS-1543-21979 DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
Mail Stop 954, Federal Center, Box 25046Denver, Colorado 80225
GEOLOGY OF THE UE17e DRILL HOLE, AREA 17,NEVADA TEST SITE
By
J. N. Hodson and D. L. Hoover
ABSTRACT
The UE17e drill hole, located at the northwest corner of Syncline Ridge, was cored from
3.05 m (10 ft) to a total depth of 914.4 m (3,000 ft) in unit J (Mississippian) of the Eleana(Devonian and Mississippian) to obtain samples for mineral, chemical, and physical-propertyanalyses. UE17e penetrated 73.5 m (241 ft) of the quartzite subunit and 840.9 m (2,759 ft) ofthe argillite subunit of unit J. Less than 0.4 percent quartzite is present in the argillitesubunit. Dips range from 120 to 180. Twenty-three faults were observed in the core or ongeophysical logs. Most of these faults affect only a few meters of the core and probablyhave displacements of a few meters. The majority of fractures are parallel to bedding planes.Fracture frequency ranges from 3.4 to 9.4 fractures per meter in the upper part of the coredinterval and 1.4 to 5.9 fractures per meter in the lower part of the cored interval. Thecore index indicates that the lower part of the hole is more competent than the upper part.Lower competency in the upper part of the hole may be caused by weathering and(or) near-surface stress relief. Physical, mechanical, and thermal property measurements indicate that
-r bedding and fracturing are the major factors in variation of properties between samples.
INTRODUCTION
The UE17e hole was drilled to provide a detailed lithologic description of the quartzite
and argillite subunits of unit J of the Eleana Formation and to provide samples formineralogical, chemical, and physical-property analyses.
The UE17e vertical exploratory drill hole is collared in Area 17 at the NTS (Nevada TestSite) at Nevada State coordinates N. 260,056.8, E.197,656.03m(N. 853,204.70, E. 648,477.8 ft)at a ground elevation of 1,503.9 m (4,934.2 ft) (fig. 1). The drill hole is locatedapproximately 53 km (33 mi) north of Mercury, Nev., in the west-central part of the YuccaFlat at the northwest tip of Syncline Ridge (fig. 1). Total depth of the hole was 914.4 m(3,000 ft) within unit J of the Eleana Formation.
HOLE CONSTRUCTION
UE17e was spudded on November 24, 1976, and completed on January 9, 1977. The BoylesBrothers CP501 rig drilled a 19.69-cm (7 3/4-in.) hole to 3.05 m (10 ft) and set a 15.24-cm-
lUse of company name in this report is for record identification purposes and does notconstitute endorsement by the U.S. Geological Survey.
1
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Figure l.--Index map of Nevada showing location of the Nevada Test Siteand drill hole UE17e.
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2
(6-in.-) ID (inside diameter) casing. UE17e was cored with a 10-cm (3.999-in.) core barrelfrom 3.05 to 914.4 m (10 to 3,000 ft). Core size was 6.67 cm (2.625 in.) Bentonite mudwas used as the circulating medium during drilling. Heavy (barite) mud was used to controlthe zones of squeezing during the geophysical logging of UE17e.
Core recovery was 96.3 percent. To provide natural-state samples for analysis,approximately 0.3 m (1 ft) out of 3.05 m (10 ft) of core was wrapped in heavy-gauge aluminumfoil and dipped in beeswax immediately after recovery. This process has proved effective inpast experience and is considered standard procedure. Geophysical logs include caliper,resistivity, inductives, gamma-ray neutron, three-dimensional velocity, and temperature.After logging, 3.30-cm- (1.38-in.-) ID tubing was cemented to a depth of 912.0 m (2,992 ft)to provide a stable medium for accurate temperature measurements.
GEOLOGY
Stratigraphy
Argillite by definition refers to the size of original particles as deposited. Mostargillites contain large amounts of clay minerals. However, clay mineralogy is not requiredin an argillite; only clay-sized particles. Argillites in the Eleana Formation, unlike most
4 argillites, are predominantly quartz and often contain 95 percent or more quartz. In thisreport, argillite that is predominantly quartz is termed siliceous argillite. The termargillite by itself refers to argillite containing large amounts of clay minerals or othersheet-structure minerals such as chlorite.
The Eleana Formation of Devonian and Mississippian age contains 10 units from unit Aat the base to unit J at the top. Only the units G through J are present in the SynclineRidge area (fig. 2). Unit J of Mississippian age has been divided,in ascending order, intolower, argillite, and quartzite subunits for mapping purposes only. The lower subunit isprobably 305 m (1,000 ft) or more in thickness. The argillite subunit has a stratigraphicthickness of approximately 700 m (2,625 ft); the quartzite subunit, approximately 100 m328 ft). The quartzite subunit is so named because the interval contains a greater proportionof quartzite than the underlying argillite subunit; the name is not meant to imply thatquartzite is the predominant lithology.
The lower subunit of unit J consists of siliceous argillite and quartzite; while theargillite and quartzite subunits consist of argillite, quartzite, siltstone, and limestone.Argillite in the quartzite and argillite subunits of unit J has been broken down into high-quartz argillite (from 25 to 45 percent) and low-quartz argillite (less than 25 percent) byvisual observation and laboratory analysis. Except for the quartz content,the mineralogy ofthe high-quartz argillite and the low-quartz argillite is similar. The argillite containsillite, kaolinite, chlorite, and other sheet-structure minerals.
3
iijII
AGE STRATIGRAPHIC UNIT LITHOLOGY
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TIP PIPAH LIMESTONE
QUARTZITE SUBUNIT
ARGILLITE SUBUNIT
UNIT J
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Limestone; approx. thick-ness 1,078 m.
Argillite, siltstone, quartzite,sandstone, and limestone;approx. thickness 100 m.
Argillite and quartzite (lessthan 5 percent); approx.thickness 700 m.
Siliceous argillite, quartzite,conglomerate, and limestone;approximate thickness 300 m.(Contact seen only in UE1Ldrill hole; uncertain onsurface.)
Limestone, thin-bedded; approx.thickness 160 m.
Siliceous argillite and quart-zite; approx. thickness 450 m.
Quartzite, quartzitic conglo-merate, and argillite; approx.thickness 450 m.
LOWER SUBUNIT
UNIT I
UNIT H
UNIT G
____ 1 .1 1 J~~~~~~~~~~~~~~
Figure 2.--Pre-Tertiary stratigraphic units of the Syncline Ridge area.
4
UE17e is a continuous core hole from 3.05 m (10 ft) to a total depth of 914.4 m(3,000 ft) in unit J and is collared approximately 50 m (164 ft) below the stratigraphic topof the Eleana Formation. UE17e penetrates 73.5 m (241 ft) of the quartzite subunit and840.9 m (2,759 ft) of the argillite subunit, all within the upper part of unit J (table 1).
The quartzite subunit penetrated by the UE17e drill hole contains argillite (63 percent),siltstone (20 percent), quartzite (15 percent), and-limestone (2 percent) interbedded in verythin to thick beds. The argillite has been divided into high-quartz argillite (74 percent)and low-quartz argillite (26 percent) by visual observation and laboratory analysis. Thehigh-quartz argillite is brittle and separates along bedding planes; it is considered to becompetent rock and usually has a CI (core index) of less than 50. The low-quartz argilliteexpands and cracks when dry; it is considered to be incompetent rock and usually has a CI ofgreater than 50. The quartzites and siltstones are composed of almost pure quartz. Some ofthe quartzite grades to quartzitic sandstone. The limestone beds are very thin and occurjust above the quartzite beds. Both the limestone and quartzite beds are highly fractured.The bottom of the weathered zone is at 18.3 m (60 ft), as indicated by the lack of iron oxidebelow this depth. Some of the fractures are filled with calcite with no visible quartzpresent. Turbidity-current depositional structures are prominent in the quartzite subunit.The argillite subunit of unit J is penetrated at 73.5 m (241 ft) in the drill hole.
UE17e is still in the argillite subunit of unit J at the total depth of 914.4 m (3,000 ft).The argillite subunit contains very thick bedded argillite (99.6 percent) with four minorquartzite beds (0.4 percent). Approximately 80 percent of the argillite is high-quartzargillite and 20 percent is low-quartz argillite. The argillite is calcareous in scatteredareas throughout the section. Small amounts of pyrite in the form of nodules and disseminatedcrystals are visible throughout the interval. Many of the fractures are filled with calciteand(or) quartz. Many of the quartz-filled fractures show gentle to highly contorted folds,some of which have been sheared later.
Structure
The UE17e drill hole is located on the northwest tip of Snycline Ridge within theSyncline Ridge structural block (fig. 1). During the Mesozoic Era, the Paleozoic sedimentaryrocks in the Syncline Ridge area, including the Eleana, were involved in regional compression-al deformation. This deformation caused intense folding, thrusting, reverse and lateralfaulting, intense fracturing, shearing, and low-grade metamorphism of the Paleozoic
sedimentary rocks. Evidence of this deformation is seen in UE17e as highly variable bedding-plane dips, fractures, shear planes, faults, and folded and sheared quartz-filled fractures.
Bedding planes are prominent within the quartzite subunit, ranging from 10° to 35° dip.The bedding planes in the argillite subunit range in dip from 120 to 80° and are obscure.Bedding planes can usually be seen only by wetting the core and appear as slight color changes,possible related to a small difference in grain size, organic matter, or mineralogy.
Within UE17e there are numerous fractures and shear planes, the majority of which areparallel to the bedding planes. Many of the shear planes show a high polish. The fracturesare more abundant above 152.7 m (501 ft),and their number decreases with depth, indicating
5
Table l.--Lithologic log of the UE17e driZl hole
ThicknessinStratigraphic and lithologic description meters
(feet)
Eleana Formation
Unit JQuartzite subunit
Argillite, low-quartz and high-quartz, intercalated with very thin to thin-bedded quartzite, limestone, and siltstone; dark-gray to black,very fine to fine-grained, low- and high-quartz argillite; low-quartz argillite expands and cracks when dry, incompetent rock(determined by CI); high-quartz argillite separates along beddingplanes, competent rock (determined by CI); four major intervals of
|1 medium-gray to medium-dark-gray, fine-grained quartzite at approxi--! mately 6.7-, 42.7-, 63.4-, and 68.0-m (22-, 140-, 208-, and 223-ft)
depths; quartzite intervals are brecciated; dark-gray to grayish-black, medium- to fine-grained limestone approximately 0.3 m (1 ft)thick at 34.1-, 42.1-, 47.2-, 63.1-, and 67.1-m (112-, 138-, 155-,207-, and 220-ft) depths; fossiliferous limestone at 63.1 m(207 ft); light- to medium-gray, thinly bedded siltstone intercala-ted with argillite, calcareous intervals; siltstone contains tur-bidity currents irregularly spaced in 36.0-73.5-m (118-241-ft)interval; calcite fills fractures, no visible quartz; bottom ofweathered zone, 18.3 m (60 ft), indicated by lack of iron oxidebelow this depth; bedding planes dip from 10° to 350; no visiblepyrite; possible faults and fault zone at 27.1, 73.5, and 63.4-69.2 m (89, 241, and 208-227 ft); incompetent rock (determined byCI)--------------------0-73.5
(0-241)
Argillite subunitArgillite, low-quartz (20 percent) and high-quartz (80 percent),
interbedded with quartzite; dark-gray to black, very thick bedded,very fine to fine-grained low- and high-quartz argillite; low-quartz argillite expands and cracks when dry, incompetent rock(determined by CI); high-quartz argillite breaks into sharpangular fragments, competent rock (determined by CI);four quartzintervals totaling 3.05 m (10 ft) at 495.0, 504.7, 528.5, and771.1 m (1,624, 1,656, 1,734, and 2,530 ft), light- to medium-graycolor,fine grained; turbidity currents at 490.7-492.3 m (1,510-1,615 ft); bedding planes difficult to locate, dip varies from 120
to 80°; calcareous intervals; calcite-and-quartz-filled fractures,veins pinch out, form gentle to highly contorted folds and are inter'-sected by other fractures; nodules of pyrite and disseminated pyrite--- 73.5-914.4
(241-3,000)
Total depth---------------------- 914.4(3,000)
6
possible stress relief near the surface. The higher fracture frequency and the shearingseen in UE17e above 152.71 m (501 ft) may also be explained by the proximity to a suspectedbedding-plane thrust fault at the contact between the Tippipah Limestone and the EleanaFormation. Twenty-one faults are penetrated by the drill hole (table 2). The faults wereidentified by visual observation of the core and with the aid of the geophysical logs. Thedisplacement of the faults could not be determined because of the very thick bedding.
The quartz-filled fractures have undergone intense deformation and Dinch out. Many ofthe quartz-filled fractures have been compressed into gentle to hiqhly contorted folds. Manyof the thin fractures as well as the gently to highly contorted folds have been sheared,indicating more than one period of severe deformation.
ENGINEERING GEOLOGY
UE17e was cored to a total depth of 914.4 m (3,000 ft) with 96.3 percent core recovery.A CI was calculated for each cored interval to determine the rock competency. A fractureanalysis was done on the core from 3.05 to 914.4 m (10 to 3,000 ft).
Core Index
The CI is a measure of rock competency. It is a dimensionless number from 0 to 100;50 being the dividing point between competency (0-50) and incompetency (51-100). Incompe-tency in the rock is generally due to jointing, faulting, and low strength. The CI is cal-culated by the following formula:
Ci-core lost (m)+core brokeneinW) +1/10 number of fracturesX 100drilled interval (in)
Lost core is defined as core that was not recovered from the drilled interval. Broken coreis defined as a length of recovered core fragmented into pieces less than 10 cm (4 in.) inlength. Fractures are defined as the number of natural fractures in the core, excluding thefractures in the broken core intervals. All natural fractures will limit the size of intactcore pieces greater than 10 cm (4 in.) in length. The total number of fractures is dividedby 10, thereby relating the standard length of unfractured core to 10 cm (4 in.), the upperlimit of broken core (J. R. Ege and M. J. Cunningham, unpub. data, 1975).-
CI histograms of the total argillite subunit were compared with three depth intervalsin the argillite subunit and the quartzite subunit. The histogram (fig. 3) for the totalargillite subunit from 72.8 to 914.4 m (238.9 to 3,000 ft) shows 48.2 percent of the rockto be competent and 51.8 percent to be incompetent.
CI histograms (fig. 4) for three depth intervals, 72.8-304.6, 304.6-610.2, and 610.2-914.4 m (239-999.5, 999.5-2,002, and 2,002-3,000 ft) show that competent rock ranges from25 to 63 percent. The 69.8-m- (229-ft-) thick quartzite subunit from 3.05 to 72.8 m (10 to239 ft) contains 99.3 percent incompetent rock.
The greater amounts of incompetent rock in the quartzite subunit and in the first argillitesubunit interval may be caused by weathering and(or) stress relief near the surface. Athrust fault near the Tippipah-Eleana contact may also affect the competency in these upper
7
Table 2.--Depths at which faults have been logged in UE17e
[Query (?) indicates probable or possible faults]
Depth
Meters Feet
27.1 (?) 89()
73.2 240
94.5 310
132.0 (?) 433 ?)150.0 492
223.4 733
294.1 965
373.1 1,224
381.0 1,250
386.8 1,269
467.6 1,534
481.9 1,581
511.2 1,677
513.9 1,686
528.8 1 ,735
534.9 1,755
550.2 1,805
577.6 1,895
605.3 1,986
636.7 2,089
656.5 2,154
674.2 2,212
688.8 2,260
8
150 -
140'
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CORE INDEX48.2 PERCENT COMPETENT ROCK
51.8 PERCENT INCOMPETENT ROCK
Figure 3.--Histogram of core indices in the argillite subunitof unit J, Eleana Formation, from a depth of 72.8 to914.4 m, UE17e. (For example, 140 m of core had a CI of40-50.)
9
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DEPTH INTERVAL IN QUARTZITE
3.05-72.8 m
I-WA30.
-.4 20.
4a 10--A
I--CD 0 *PI-
"a
udd
-a
0 50 100
CORE INDEX
0.4 PERCENT COMPETENT ROCK
99.6 PERCENT INCOMPETENT ROCK
DEPTH INTERVAL IN ARGILLITE
7 2 .8 304.6m7
_ lE ~~~.. .....
0 50 100
CORE INDEX25.4 PERCENT COMPETENT ROC K
74.6 PERCE NT INCOMPETENT ROC K
DEPTH INTERVAL IN ARGILLITE
610.2-9 14.4 m
CORE INDEX
.PERCENT COM MPETENT ROCK
43.1 PERCENT INCOMPETENT ROCK
DEPTH INTERVAL IN ARGILLITE
304.6 -610.2m
50
- 40-
SM2 30-
o, 20 -
-j-C10a--
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Sd.:
CIA
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70-
60-
50-
40-
30-
20-
00-
o -
0 50 !00
CORE INDEX62.4 PERCENT COMPETENT ROCK
37.6 PERCENT INCOMPETENT ROCK
Figure 4.--Histograms of core indices in unit J, Eleana Formation,from a depth of 3.05 to 914.4 m, UE17e.
10
intervals. The percentage of competent rock increases with depth, as shown by a comparisonof the lower two argillite subunit intervals with the first argillite subunit interval.
Fracture Analysis
The dip of the fractures per 10°-dip interval, whether "open" or "closed," and regard-less of the type of fracture filling, were recorded for 911.4 m (2,990 ft) of core in UE17e.The rosette diagrams (figs. 5-17) show 10'-dip intervals from 00 to 90°; the number offractures in each 100 interval is shown by the length of the ray in each interval. Thehorizontal bar across the top of each rosette diagram indicates the fracture frequency. Onlynatural fractures, as opposed to mechanical fractures due to drilling and(or) handling, weremeasured. Fractures were classified as "open" or "closed" on the basis of their appearancein the core box. "Open" fractures are those fracture surfaces which are exposed in the corebox.
In UE17e (table 3, figs. 5, 6), the average fracture frequency for the 914.4-m (3,000-ft)core is 4.3 fractures per meter. Above 152.7 m (501 ft) (fig. 5), the fracture frequencyis 8.4 fractures per meter. Below 152.7 m (501 ft) (figs. 5, 6), the fracture frequency is3.5 fractures per meter. The higher fracture frequency (8.4 fractures per meter) above 152.7 m(501 ft) is possibly due to the stress relief near the surface. The proximity to a suspectedbedding-plane thrust fault at the contact between the Tippipah Limestone and Eleana Formation,about 50 m (164 ft) stratigraphically above the collar of UE17e, may also be responsible forthe higher fracture frequency.
The fracture data from UE17e (figs. 5, 6) indicate that the majority of fractures a-eessentially parallel to bedding. The interval of bedding-plane fracture dips is large inUE17e because of the thick stratigraphic interval that has been deformed.
Separation of fractures into "open" and "closed" categories indicates that open fracturesare more numerous at nearly every depth (table 4; figs. 7-10). Open fractures were notcompletely healed and reopened during drilling and core handling.
The total number of fractures recorded for 911.4 m (2,990 ft) of core in UE17e is aboutfour times the number of bedding-plane fractures (tables 3, 4). Fractures without fillingsoutnumber those with fillings by an approximate ratio of 2 to I (tables 5-7).
The rosette diagrams of various fillings in open and closed fractures in UE17e (tables5-7; figs. 11-17) do not clearly suggest any significant effect on the rock competency. Foreach filled fracture there are two clean fractures. Fracture fillings can affect the coeffi-cient of friction along fractures. Fillings, such as quartz and calcite, may increase frictionalong the fracture; clay may reduce the friction. Clay-filled fractures outnumber quartz-and-calcite-filled fractures by a 2 to 1 ratio (tables 7, 8; figs. 13-17). The clay-filledfractures and the quartz and calcite-filled fractures decrease with depth while the morenumerous clean fractures increase with depth.
11
Table 3.--Fractures per 10C-dip interval, UE17e driai hoWe
[Number of bedding-plane fractures In parentheses]
Dip Depth, in metersin
degrees 3.05- 77.72- 152.7- 229.2- 304.65- 380.09- 457.05- 532.79- 610.21- 685.80- 763.52- 838.51- Total
77.72 152.7 229.2 304.65 380.09 457.05 532.79 610.21 685.80 763.52 838.51 914.40
0-10 28 3 6 39 0 1 1 7 11 5 51 6 158(9) (3) (33) (19) (6) (70)
11-20 254 143 20 8 1 4 8 34 6 98 98 53 727(156) (60) (6) (23) (2) (74) (58) (12) (391)
21-30 223 75 21 25 14 12 17 105 36 75 41 176 820(157) (29) (8) (7) (28) (13) (30) (16) (75) (363)
31-40 30 136 29 36 31 17 34 46 53 25 24 160 621(2) (26) (6) (9) (13) (27) (17) (4) (3) (107)
41-50 29 101 48 40 44 32 37 79 33 29 31 28 531(28) (8) (1) (1) (3) (3) (44)
51-60 38 43 33 33 53 29 44 31 30 23 28 13 398(12) (6) (19) (37)
61-70 10 7 32 48 41 26 35 10 30 4 .6 14 263
71-80 16 4 11 14 15 10 20 6 13 4 5 5 123
81-90 103 14 31 14 18 14 7 17 22 17 1 0 258
Total 731 526 231 257 217 145 203 335 234 280 285 455 3,899(324) (158) (8) (54) (15) (8) (35) (78) (32) (108) (93) (99) (1,012)
0 5 10r , ! FRACTURES PER METER BEDDING PLANE FRACTUR
Figure 5.--Fractures per 100-dip interval and fracture frequencies in all rocktypes, 3.05-457.05-m depths, UE17e. Broken rays and accompanying numbersindicate actual extent of ray and total number of fractures.
13
457.05-532.79-m DEPTH INTERVAL 685.80-763.52-m DEPTH INTERVAL
0;
,
532.79-610.21-m DEPTH INTERVAL 763.52-838.51-m DEPTH INTERVAL
'i
IJ
610.21-685.80-m DEPTH INTERVAL 838.51-914. 40-m DEPTH INTERVAL
Z_0
0 5 10W E Us FRACTURES PER METER W BEDDING PLANE FRACTURES
Figure 6.--Fractures per 10'-dip interval and fracture frequencies in all rocktypes, 457.05-914.4-m depths, UE17e. Broken rays and accompanying numbersindicate actual extent of ray and total number of fractures.
14
Table 4.--Total number of open and closed fractures per 10P-dip interval between 3.05 and 914.4 m, UE17e drill hole
[Number of bedding-plane fractures in parentheses]
;5
Depth Degrees Total
interval 0-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90(meters) Open Closed Open Closed Open Closed Open Closed Open Closed Open Closed Open Closed Open Closed Open Closed Open Closed
3,05- 77.72 28 0 254 0 223 0 27 3 29 0 23 15 9 1 4 12 39 64 636 95(9) (156) (157) (2) (324)
77.72-152.71 3 0 143 0 73 2 136 0 101 0 43 0 6 1 4 0 14 0 523 3(3) (60) (29) (26) (28) (12) (158)
152.71-229.21 4 2 18 2 18 3 23 6 36 12 24 9 20 12 9 2 16 15 168 63(6) (2) (6) (2)
229.21-304.65 39 0 8 0 23 2 26 10 37 3 19 14 43 5 10 4 9 5 214 43(33) (6) (6) (2) (6) (1) (52) (2)
304.65-380.09 0 0 1 0 10 4 29 2 42 2 42 11 31 10 8 7 14 4 177 40(8) (1) (6) (14) (1)
380.09-457.05 1 0 2 2 12 0 17 0 31 1 27 2 25 1 9 1 11 3 135 10(7) (1) (7) (1)
457.05-532.79 1 0 5 3 16 1 33 1 34 3 39 5 28 7 19 1 6 1 181 22(13) (2) (1) (18) (1) (33) (2)
532.79-610.21 6 1 33 1 104 1 40 6 76 3 29 2 8 2 4 2 14 3 314 21(23) (28) (27) (78)
610.21-685.80 7 4 6 0 32 4 49 4 30 3 29 1 20 10 12 1 12 10 197 37(2) (10) (3) (15) (2) (27) (5)
685.80-763.52 3 2 95 3 71 4 24 1 29 0 23 0 4 0 4 0 8 9 261 19(74) (30) (3) (1) (107) (1)
763.52-838.51 48 3 72 26 40 1 22 2 29 2 26 2 5 1 5 0 0 1 247 38(19) (33) (25) (16) (68) (25)
838.51-914.4 6 0 53 0 174 2 158 2 28 0 13 0 13 1 3 2 0 0 448 7(6) (12) (75) (3) (3) (99)
0-914.4 146 12 690 37 796 24 584 37 502 29 337 61 212 51 91 32 143 115 3,501 398Subtotals (70) (366) (25) (358) (5) (103) (4) (40) (4) (36) (1) (973) (39)
Total 3,899(1 ,012)
OPEN FRACTURES
3.05-77.72-mrDEPTH INTERVAL
10-
CLOSED FRACTURES
3.05- 77.72-m DEPTH INTERVAL
0
10-
20-
30-
64
77.72-152.71-m DEPTH INTERVAL
D10
152.71-229.21-m DEPTH INTERVAL
77.72-152.71-m DEPTH INTERVAL
_
O
152.71-229.21-m DEPTH INTERVAL
zI
W BEDDING PLANE FRACTURES
Figure 7.--Comparison of number of open and closed fractures per 10'-dipinterval, 3.05-229.21-m depths, UE17e. Broken rays and accompanyingnumbers indicate actual extent of ray and total number of fractures.
16
OPEN FRACTURES229.21-304.65-m DEPTH INTERVAL
j. �
2
304. 65-380.09-m DEPTH INTERVAL
CLOSED FRACTURES229.21l304 .65 -m DEPTH INTERVAL
-0
4;j0
304.65-380.09-m DEPTH INTERVAL
3 8 0.0 9 4 5 7 .05 m DEPTH INTERVAL
.; 10-
2
380.09-457.05-m DEPTH INTERVAL
Z
M BEDDING PLANE FRACTURES
Figure 8 .--Comparison of number of open and closedfractures per 10° dip interval, 229.21-457.05-mdepths, UE17e.
17
OPEN FRACTURES457.05-532.79-m DEPTH INTERVAL
_ -
CLOSED FRACTURES457.05-532.79-m DEPTH INTERVAL
0
10
532.79-610.21-m DEPTH INTERVAL
w
532.79 610.21-m DEPTH INTERVAL
- 0-
- 10-
610.21-687.32-m DEPTH INTERVAL
LZj BEDDING PLANE FRACTURES
610.21-687.32-m DEPTH INTERVAL
_
in
Figure 9.--Comparison of number of open and closed fractures per100-dip interval, 457.05-687.32-m depths, UE17e.
18
OPEN FRACTURES
617.32-763.52-m DEPTH INTERVAL
_;_
.0
763.52-138.51-m DEPTH INTERVAL
CLOSED FRACTURES617.32-7§3.52-m DEPTH INTERVAL
10-
763.52-838.51-mDEPTH INTERVAL
- 0
138.51-914.41-m DEPTH INTERVAI
. f- O _
_
83t.51-914.40-m DEPTH INTERVAL
a
F77rM BEDDING PLANE FRACTURES
Figure IO.--Comparison of number of open and closed fractures per 100-dipinterval, 687.32-914.40-m depths, UE17e. Broken rays and accompanyingnumbers indicate actual extent of ray and total number of fractures.
19
I
.:ITable 5.--CZean and polished fractures and clean fractures per 0l-dip
interval, 3.05-914.4 m, UEs7e
[Number of bedding-plane fractures in parentheses]
Depth, in meters
Dip 3.05- 152.71- 304.65- 457.05- 610.21- 763.52- Total(degrees) 152.71 304.65 457.05 610.21 763.52 914.4
Clean and polished fractures
0-10 0 2 1 2 7 1 13
11-20 0 1 1 15 2 6 25(7) (2) (9)
21-30 3 1 8 5 27 49 93(6) (23) (29)
31-40 15 10 8 25 8 122 188(12) (1) (13)
41-50 10 1 26 12 1 23 73
51-60 27 5 16 9 3 14 74
61-70 0 3 14 2 4 3 26
71-80 2 0 2 4 0 2 10
81-90 7 1 3 3 5 0 19
Total 64 24 79 77 57 220 521(6) (19) (26) (51)
Clean fractures
0-10 23 8 0 3 0 53 87(4) (25) (29)
11-20 245 21 1 20 92 115 494(129) (6) (16) (74) (45) (270)
21-30 209 33 8 101 69 162 582(134) (4) (1) (27) (12) (91) (269)
31-40 83 31 21 31 56 54 276(28) (6) (1) (14) (16) (3) (68)
41-50 56 41 28 74 44 34 277(28) (7) (1) (2) (3) (41)
51-60 22 26 19 44 39 19 169(12) (3) (18) (33)
61-70 8 36 8 10 19 14 95
71-80 2 16 5 12 7 3 45
81-90 14 19 0 2 4 0 39
Total 662 231 90 297 330 454 2,064(335) (23) (6) (77) (102) (167) (710)
I20
.-. _--- �'7-- -.- �, -7:_. 77, -1 wI:_-_-_._..'-.�,..._. ..
... 11 -, - I.- -1. - . --
i. . f
.iI
3.05-152.71-r DEPTH INTERVAL 457.05-610.21-mDEPTH INTERVAL
_ - 0-
- lo.
152.71-304.65-mDEPTH INTERVAL
W
.,M
610.21-763.52-mDEPTH INTERVAL
0
304..65-457.05-rnDEPTH INTERVAL 763.52 - 914.40-m DEPTH INTERVAL
-
M
W BEDDING PLANE FRACTURES
Figure ll.--Clean and polished fractures per 10'-dipinterval within six depthintervals between 3.05 and 914.4 m. UE17e. Broken rays and accompanyingnumbers indicate actual extent of ray and total number of fractures.
21
3.05- 152.71-mDEPTH INTERVAL 457.05-610.21-rnDEPTH INTER
: ~ ~ ~ ~ ~ C i
: J i
-152.71304.65-r DEPTHINTERVAL 610.21O763.52r DEPTHINTER
1- ;O-
304.65-457.05-rn DEPTH INTERVAL 763.52-914.40-mDEPTH INTEI
>.-.,...,,~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~.... ..~~~~~~ ,
-- ..
WBEDDING PLANE FRACTURES
Figure 12.--Clean fractures per 10'-dip interval within six depth intervalsbetween 3.05 and 914.4 m, UE17e. Broken rays and accompanying numbersindicate actual extent of ray and total number of fractures.
22
Table 6.--Quartz-fitZed, catcite-filzed, and caacite-and-qzartz-filZed fractures per 100-dip
intervaZ, 3.05-914.4 m, UE17e
[Number of bedding-plane fractures in parentheses]
Depth, in meters
Dip 3 05 152.71- 304.65- 457.05- 610.21- 763.52- Total(degrees) 152.71 304.65 457.05 610.21 763.52 914.4
Quartz-filled fractures
0-10 0 2 0 0 0 0 2
11-20 0 2 2 3 3 1 11
21-30 0 0 8 6 2 2 18
31-40 3 13 1 8 1 3 29
41-50 0 7 6 4 0 1 18
51-60 0 9 20 5 0 1 35(1) (1)
61-70 0 18 11 20 2 1 52
71-80 0 3 3 4 1 2 13
81-9g 8 10 12 3 0 0 33
Total 11 64 63 53 9 11 211(1) (1)
Calcite-filled fractures
0-10 0 0 0 0 6 3 9
11-20 0 2 0 1 0 28 31(25) (25)
21-30 0 2 0 0 3 1 6
31-40 15 1 1 1 2 0 20(1) (1)
41-50 11 0 2 1 1 0 15
51-60 12 0 2 0 1 3 18
61-70 3 0 3 0 6 0 12
71-80 11 0 5 0 0 0 16
81-90 40 0 2 1 11 0 54
Total 92 5 15 4 30 35 181(1) (25) (26)
Calcite-and-quartz-filled fractures
0-10 0 0 0 0 0 0 0
11-20 0 0 0 0 0 0 0
21-30 0 0 0 0 1 1 2
31-40 0 1 0 1 3 0 5
41-50 0 4 3 4 0 0 11(2) (2)
51-60 5 2 0 0 0 0 7
61-70 1 0 0 0 0 0 1
71-80 0 0 0 0 0 0 0
81-90 10 1 1 0 8 0 20
Total 16 8 4 5 12 1 46(2) (2)
l
i
* I
23
3.0 5-152.71-mDEPTH INTERVAL
= X0- 10-
457.05-610.21-m DEPTH INTERVAL
o 0
.2.t10 t
152.71-304.65-m DEPTH INTERVAL
4;
610.21-763..52-mDEPTH INTERVAL
-. 0
304.65-457.05-m DEPTH INTERVAL
;
763.52-914.40-mDEPTH INTERVAL
- i= a
W BEDDINO PLANE FRACTURES
Figure 13.--Quartz-filled fractures per 10'-dip interval withinsix depth intervals between 3.05 and 914.4 m, UE17e,
24
3.05-152.71- mDEPTH INTERVAL 457.05-610.21-mDEPTH INTERVAL
m 0
4;. 10_.
152.71-304.65-m DEPTH INTERVAL
_ Jo
304.65-457.05-m DEPTH INTERVAL
- m
t o
610.21-763.52-mDEPTH INTERVAL
-;o
763.52-914.40- mDEPTH INTERVAL
-2 0o- l
E BEDDING PLANE FRACTURES
Figure 14.--Calcite-filled fractures per 100-dip interval withinsix depth intervals between 3.05 and 914.4 m, UE17e.
25
3.05-152.71-mDEPTH INTERVAL
w 7-o0
- to0
4 57 . 05-610.21m DEPTH INTERVAL
- 10S
- 10-
152.71-304.65-mDEPTH INTERVAL
- 0_q
:1= 10-
304.65-457.05-mDEPTH INTERVAL
- 70
=1-
610.21-763.52-mDEPTH INTERVAL
10-
763.52-914.40- mDEPTH INTERVAL
0-
W BEDDING PLANE FRACTURES.. .
I
4
Figure 15.--Calcite-and-quartz-filled fractures per 100-dip interval withinsix depth intervals between 3.05 and 914.4 A, UEl7e.
26
Table 7.--CZay-fizzed, iron-stained, and iron-and-cZay-fiZZed fractures per 100-dip
intervaZ, 3.05-914.4 m, UEl7e
[Number of bedding-plane fractures in parentheses]
Depth, in meters
Dip 3.05- 152.71- 304.65- 457.05- 610.21- 763.52- Total(degrees) 152.71 304.65 457.05 610.21 763.52 914.4
Clay-f i lled fractures
0-10 8 33 0 3 3 0 47(8) (33) (41)
11-20 49 2 1 3 7 1 63(49) (49)
21-30 29 10 2 10 9 2 62(4) (1) (8) (13)
31-40 40 9 17 14 8 5 93(8) (14) (3) (25)
41-50 51 35 11 21 16 1 135(1) (1)
51-60 13 24 25 17 10 4 93(3) (3)
61-70 1 23 31 13 3 2 73
71-80 2 6 10 6 9 3 36
81-90 11 14 14 15 11 1 66
Total 204 156 111 102 76 19 668(57) (37) (11) (16) (11) (132)
Iron-stained fractures
0-10 0 0 0 0 0 0 0
11-20 103 0 0 0 0 0 103(38) (38)
21-30 57 0 * 0 0 0 0 57(52) (52)
31-40 4 0 0 0 0 0 4
41-50 2 0 0 0 0 0 2
51-60 1 0 0 0 0 0 1
61-70 3 0 0 0 0 0 3
71-80 3 0 0 0 0 0 3
81-90 11 0 0 0 0 0 11
Total 184 0 0 0 0 0 184(90) (90)
Iron-and-clay-filled fractures
0-10 0 0 0 0 0 0 0
11-20 0 0 0 0 0 0 0
21-30 0 0 0 0 0 0 0
31-40 6 0 0 0 0 0 6
41-50 0 0 0 0 0 0 0
51-60 1 0 ~ 0 0 0 0 1
61-70 1 0 0 0 0 0 1
71-80 0 0 0 0 0 0 0
81-90 16 0 0 0 0 0 16
Total 24 0 0 0 0 0 24
27
lI
3.05-152.71-mDEPTR INTERVAL 3.O5-152.1-mDEPTUINTERVAL457. 05-610.21-m DEPTH INTERVAL
-W
152.71-304.65-mDEPTH INTERVAL 610.21-763.52-m DEPTH INTERVAL
14
.0;
z
304.65-457.05-mDEPTH INTERVAL
a
763.52-914.40-mDEPTH INTERVAL
_-o
- 10
W BEDDING PLANE FRACTURES
Figure 16.--Clay-filled fractures per 100-dip interval withinsix depth intervals between 3.05 and 914.4 m, UE17e.
28
IRON AND CLAY FILLING
i
ii
� 4Ii1
.1
.1
Ii
Ii
i
I
II
3 .OS-152.71-mDEPTH INTERVAL
IRON STAINING
3 .0 5 - 152.71-m DEPTH INTERVAL
- or -''
I-
W BEDDING PLANE FRACTURES
Figure 17.--Iron-and-clay-filled fractures and iron-stained fractures per100-dip interval,3,05-152.71-m depth, UE17e, Broken rays andaccompanying numbers indicate actual extent of ray and total numberof fractures.
29
PHYSICAL PROPERTIES
Thermal conductivities at 250 Cwere measured by needle probe by the U.S. Geological
Survey, Menlo Park, Calif. Conductivities were measured about every 15.2 m (50 ft) both
axially and radially to natural-state core samples, the conductivities are listed in table
8. The conductivities differ radially and axially because of depositional features parallel
to bedding and because of mineralogy. The thermal-conductivity range for argillite in UE17e
was found to be 4.2 to 8.0 mcal/s.0 C. The accepted thermal conductivity range for shale is
3.3 to 7.3 mcal/s-OC.
Natural-state densities have been measured and the porosities have been calculated for
30 different core samples of argillite from UE17e (table 9). The average natural-state
density for the 30 core samples is 2.62 g/cm3. The calculated porosities average 8.8 percent.
Geomechanical measurements were conducted on 15 core samples from UE17e (table 10).
30
l
zI
ii
1l
Table 8.--2'herma2 conductivities, at 25° C.and dips measured on core from UE.7e driZI hole
[Measurements made by E. P. Smith, U.S. Geological Survey, Menlo Park, Calif;leaders (---) indicate no data]
MeesDepth FetK KY (K,-K y(parallel to axis of core) (radial to axis of core) Dip
mcal/s-°C mcal/s-°C rmcal/s-°C
16.46 54 4.469 4.427 0.042 100
31.39 103 5.853 4.226 1.627 32077.11 253 5.787 3.72 2.067 110
93.57 307 6.668 5.098 1.570 220105.77 347 6.815 4.125 2.690 30°121.92 400 5.99 4.735 1.255 380137.77 452 5.751 6.349 -.598 430151.18 496 6.069 5.61 .459 360168.655 53 5.14 4.597 .543 320182.88 600 6.319 5.355 .964 450198.73 652 5.656 6.139 -.483 25°
227.08 745 6.885 6.93 -.045 550244.14 801 6.519 6.969 -.450 580259.38 851 5.9 5.788 .112 570273.71 898 5.757 6.32 -.563 52°
290.17 952 5.941 6.02 -.079 650302.67 993 5.74 5.934 -.194 65°318.21 1,044 --- 5.416 --- 630
336.50 1,104 5.619 6.058 -.439 57°349.91 1,148 5.206 6.887 -1.681 560364.85 1,197 5.266 5.876 -.610 530381.30 1,251 --- 7.726 --- 48°
394.72 1,295 5.573 5.564 .009 47°411.18 1,349 6.11 5.872 .238 440427.02 1,401 6.676 6.994 -.318 43°444.40 1,458 6.573 5.83 .743 430455.37 1,494 6.541 6.023 .518 400472.44 1,550 4.718 7.151 -2.433 42°
485.85 1,594 5.064 6.85 -1.786 480501.70 1,646 6.607 7.525 -.918 47°
516.94 1,696 7.566 7.24 .326 470533.4 1,750 7.822 8.151 -.329 460548.34 1,799 8.287 7.068 1.219 460563.88 1,850 7.84 6.237 1.603 480580.03 1,903 5.379 4.081 1.298 40°594.67 1,951 5.902 6.23 -.328 350613.26 2,012 6.016 4.835 1.181 470640.69 2,102 7.464 6.213 1.251 33°654.41 2,147 5.198 5.533 -.335 320671.47 2,203 7.528 6.888 .640 310686.41 2,252 6.847 5.02 1.827 460701.95 2,303 6.527 5.784 .743 440717.19 2,353 4.52 3.833 .687 540732.74 2,404 8.622 6.9 1.722 610745.85 2,447 7.905 5.338 2.567 630761.70 2,499 5.8 5.757 .043 680775.72 2,545 7.749 6.821 .928 640789.74 2,591 8.57 6.307 2.263 680806.81 2,647 7.601 5.193 2.408 790
821.44 2.695 7.355 5.122 2.233 78°840.94 2,759 7.156 5.549 1.607 53°852.53 2,797 7.097 5.668 1.429 620872.64 2,863 7.413 5.435 1.978 640884.83 2,903 5.914 5.552 .362 640898.86 2,949 6.08 4.286 1.794 610914.10 2,999 7.641 6.168 1.473 ---
31
Table 9.--Dentity measurecents and water content of core samples from UEl7e
[Measured by Holmes & Narver, Inc., Mercury, Nevada. Leaders (---) indicate no data]
Physical Properties
Labo- Depth Bulk density Grain Moisture content Porosity SaturationraNory Meters Feetdensity of tpercent) (percent) Remarks
No. Feet N~~~~~saturl Dynatural-statestate ~~~~~~bases
9/cm3 g/cm3 g/cm3 (percent)
66 59.44 195 2,53 2.43 2.75 4,07 11.8 88
3,251 63.09 207 2.67 2.66 2.73 .36 2.7 --- Crack parallel to core axis. Testedlarger fragment.
67 120.70 396 2.44 2.33 2.78 4.58 16.2 69
3,252 121.92 400 2.52 2.40 2.78 4.7 13.5 --- One diagonal crack.
68 178.92 587 2.60 2.50 2.82 3.67 11.2 85
3,253 182.88 600 2.59 2.50 2.79 3.5 10.5 --- Mud-filled diagonal crack.
69 242.93 797 2.64 2.56 2.81 2.81 8.9 83
3,254 244.15 801 2.59 2.50 2.79 3.4 10.3 --- No cracks.
3,255 302.67 993 2.58 2.48 2.76 3.6 10.2 --- No cracks.
70 305.41 1,002 2.59 2.51 2.76 3.17 9.2 90
3,256 364.85 1,197 2.61 2.52 2.80 3.5 10.0 --- No cracks.
71 367.28 1,205 2.60 2.51 2.78 3.15 9.6 85
3,257 427.03 1,401 2.69 2.61 2.85 2.6 8.3 --- Numerous partially cemented cracks.
72 429.16 1,408 2.64 2.58 2.78 2.28 7.3 .82
73 479.76 1,574 2.65 2.60 2.79 1.87 6.9 72
3,258 489.20 1,605 2.58 2.48 2.82 4.2 12.3 --- Large cemented diagonal crack:
74 547.42 1,796 2.71 2.68 2.80 .84 4.1 56
3,259 550.47 1,806 2.63 2.57 2.76 2.3 6.8 --- No cracks.
75 606.55 1,990 2.44 2.30 2.79 5.45 17.3 77
3,260 607.77 1,994 2.51 2.40 2.78 4.1 13.5 --- Badly cracked. Perhaps crushed incoring. Bulk density questionable.
76 667.82 2,191 2.70 2.65 2.81 1.65 5.6 79
3,261 671.47 2,203 2.64 2.58 2.78 2.2 7.4 --- Numerous partially cemented cracks.
77 730.0 2,395 2.67 2.62 2.79 1.71 6.1 75
3,262 732.74 2,404 2.65 2.60 2.80 1.8 7.0 --- No cracks.
3,263 789.74 2,591 2.66 2.60 2.79 2.1 6.9 --- No cracks.
78 792.79 2,601 2.70 2.67 2.81 1.33 5.1 71
79 848.56 2,784 2.71 2.68 2.82 1.45 5.3 74
3,264 852.53 2,797 2.65 2.59 2.79 2.4 7.0 --- Intact fragment between two cracks.
80 910.44 2,987 2.63 2.58 2.75 2.16 6.3 913,265 914.10 2,999 2.67 2.61 2.81 2.3 7.1 - Intact fragment between two cracks.
Table IO.--Physical properties from geomechanical measurements on core from U8l7e drill hole
[Measured by Holmes & Narver, Mercury, Nevada. Leaders (---) indicate no data]
'A
Labo- Depth Axial stress Modulus of Poisson's Bulk Shearratory at failure elasticity' ratio modulus2 modulus3 RemarksNo. Meters Feet MPa xl03 MPa (v) x103 MPa x103 MPa
66 55.47 182 0.42 --- --- --- Numerous small cracks. Failed along an existingcrack covered by drilling mud.
67 120.70 396 1.12 ___ Numerous small cracks. Failed along diagonalcracks.
68 178.92 587 .88 --- --- --- Numerous small cracks. Failed along a diagonalcrack.
69 242.93 797 23.34 6.90 0.37 8.83 2.4870 305.41 1,002 27.04 5.58 .34 5.79 2.0771 367.13 1,204.5 27.73 8.83 .31 7.72 3.3872 429.16 1,408 32.25 13.17 .37 16.89 4.8373 479.76 1,574 45.56 15.86 .30 13.24 6.00 Violent failure.74 547.42 1,796 44.85 19.86 .31 17.44 7.59 Failed along light-colored material in core.75 606.55 1,990 .52 --- --- --- --- Numerous cracks. Failed along the existing deep
cracks.76 665.93 2,184.8 56.29 19.44 .36 23.17 7.17 Violent failure.77 730.00 2,395 54.33 16.34 .30 13.65 6.27 Violent failure.78 792.79 2,601 64.19 18.41 .25 12.27 7.38 Violent failure.79 848.56 2,784 41.62 19.65 .32 18.20 7.45 Violent failure.80 910.44 2,987 48.53 16.0 .35 17.79 5.93 Violent failure.
'Elastic constants were determined
2Bulk Modulus equation E3 (1-29)
over the linear part of the curve.
'Shear Modulus equation E2 (l+V)
E=Modulus of Elasticity
v=Poisson's Ratio
USGS-1543-2
Distribution
U.S. Department of Energy, Office of Nuclear Waste Management,Washington, DC.
R. H. CampbellC. R. CooleyE. C. HardinC. A. HeathC. W. KuhimanSheldon MeyersR. G. RomatowskiR. Stein, OWD. L. Vieth (2)
U.S. Department of Energy, Richland Operations Office, Richland, WA:
D. J. SquiresFrank Standerfer
U.S. Department of Energy, Albuquerque Operations Office, Albuquerque, NM:
D. T. Schueler, Jr.
U.S. Department of Energy, San Francisco Operations Office, Oakland, CA:
John S. Muhlestein
U.S. Department of Energy, Nevada Operations Office, Las Vegas, NV:
J. B. CotterM. E. GatesD. G. JacksonM. P. KunichH. L. MelanconR. M. NelsonNV Technical Library (10)A. J. RobertsR. W. Taft
U.S. Department of Energy, Nevada Test Site Support Office, Mercury, NV:
J. H. Dryden
U.S. Department of Energy, San Francisco Office, San Francisco, CA:
D. J. Cook
U.S. Department of Energy, Battelle Office of Nuclear Waste Isolation, Columbus, OH:
J. 0. Neff
Nuclear Regulatory Commission, Washington, DC:
W. P. BishopRegis BoyleJ. C. Malaro
Rockwell International, Rockwell Hanford Operations, Richland, WA:
Raul DejuBernie Dietz
34
Lawrence Livermore Laboratory, Livermore, CA:
L. B. BallouR. C. CarlsonAlfred HolzerL. D. Ramspott
Los Alamos Scientific Laboratory, Los Alamos, NM:
B. M. CroweL. S. GermainLloyd LanhamJ. R. SmythKurt Wolfsberg (2)
Sandia Laboratories, Albuquerque, NM:
E. H. BecknerF. A. DonathR. C. LincolnR. W. LynchF. L. McFarlingG. F. RudolfoL. D. TylerW. D. Weart
Sandia Laboratories, U.S. Department of Energy, Las Vegas, NV:
A. E. Stephenson
Westinghouse, Mercury, NV:
D. C. Durrill
Westinghouse, AESD, Pittsburgh, PA:
J. B. Wright
Nuclear Fuel Cycle Research, University of Arizona, Tucson, AZ:
J. G. McCray
Geological Society of America, Boulder, CO:
J. C. Frye
Kansas Geological Survey, Lawrence, KS:
W. W. Hambleton
Battelle Memorial Institute, Columbus, OH:
Sam BashamJ. M. BatchWayne CarbinerR. A. Robinson
State of Nevada, Capital Complex, Carson City, NV:
B. B. Arkell, Governor's Office of Planning CoordinationNoel Clark, Department of Energy
U.S. Department of Energy, Technical Information Center, Oak Ridge, TN: (27)
35
* Woodward-Clyde Consultants. San Francisco, CA:
Western Region Library
Computer Sciences Corporation, Falls Church, VA:
1 J. A. Lahoud
John A. Blume Engineers, San Francisco, CA:
*1 Peter Yanev
Department of Geological Sciences, Brown University, Providence, RI:
Bruno Giletti
Department of Geological Sciences, Harvard University, Cambridge, MA:
Raymond Siever
Center for Tectonophysics, Texas A & M University, College Station, TX:
John Handin
Department of Earth Sciences, Dartmouth College, Hanover, NH:
John Lyons
Department of Civil Engineering, Princeton University, Princeton, NJ:
George Pinder
CERCDC, Sacramento, CA:
Art Soinski
Lawrence Berkeley Laboratory, University of California, Berkeley, CA:
Paul Witherspoon
Fenix & Scisson, Inc., Mercury, NV:
G. T. Bruesch
U.S. Geological Survey:
G. D. DeBuchananne, Reston, VAP. R. Stevens, Reston, VAD. B. Stewart, Reston, VAW. W. Dudley, Jr., Denver, CO
f Geologic Data Center, Mercury, NV (15)W. S. Twenhofel, Denver, CO
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36 GPO 849 -586