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ITED STATES DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY
Analytical results of vein, rock, soil, stream-sediment, and
heavy-mineral-concentrate samples from the Republic of Palau
By
J. B. McHugh, R. T. Hopkins, R. M. O'Leary,
and M. A. Arnold
Open-File Report 86-593
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS.
1986
CONTENTS
Page
Introduction.............................................................. 1
Sample Col lection and Preparation......................................... 1
Vein and channel samples............................................. 1
Soil and stream-sediment samples..................................... 1
Heavy-mineral-concentrate samples.................................... 1
Analytical Procedures..................................................... 3
Rock Analysis Storage System (RASS)....................................... 3
Description of Data Tables................................................ 4
References Cited.......................................................... 4
ILLUSTRATIONS
Figure 1. Index map of Palau study area.................................. 2
TABLES
Table 1. Limits of determination for spectrographic analysis............. 5
Table 2. Chemical data for 151 vein samples from the Rois Malk Area,Palau................................................................ 6
Table 3. Chemical data for 163 channel samples from the Rois Malk Area,Palau................................................................ 18
Table 4. Chemical data for an E-W soil traverse across the Rois MalkArea, Palau.......................................................... 30
Table 5. Chemical data from a detailed soil traverse, Rois Malk Area,Palau................................................................ 32
Table 6. Chemical data for 16 stream sediments samples, Rois MalkArea, Palau.......................................................... 35
Table 7. Chemical data for 13 heavy-mineral concentrates, Rois MalkArea, Palau.......................................................... 38
INTRODUCTION
The Republic of Palau, located in the western Pacific, is a former U.S. Trust Territory consisting of more than 200 islands aligned along the 350-km- long Palau trench-arc system (fig. 1). Babelthuap is the largest of these islands. In the spring of 1986, a team from the U.S. Geological Survey conducted a detailed geologic and geochemical study of the Rois Malk epithermal gold system on the island of Babelthuap. Three hundred and eighty- one samples were collected and analyzed for 31 elements by emission spectrography and for Au, Te, As, Bi, Cd, Sb, and Zn by atomic-absorption spectroscopy. This study was funded by the Office of Territorial and International Affairs, and the U.S. Geological Survey.
SAMPLE COLLECTION AND PREPARATION
Samples were collected in the spring of 1986 by W. R. Miller, J. J. Rytuba, M. A. Arnold, and T. L. Vercoutere and shipped to the U.S. Geological Survey laboratory in Denver, Colorado, for preparation and analyses. Three hundred and eighty-one samples were collected, of this 151 were vein samples, 163 channel samples, 38 soils, 16 stream sediments, and 13 heavy-mineral concentrates.
Vein and channel samples
Surface exposure of veins vary from rare nearly fresh exposure to more commonly weathered exposures. Vein samples were collected by compositing several samples across and along trend of the vein. Channel samples were collected across veins and lateritic country rocks. Channel samples were collected by continuous sampling along a one to three meter interval along road cuts, World War II Japanese fortification trenches, and backhoe trenches. Vein and channel samples were prepared by crushing and then were pulverized to minus 0.15 mm with ceramic plates.
Soil and stream-sediment samples
Soil samples consisted of approximately 0.5 kg of collected material that were generally about 15 cm below the surface. Soil development is poor with no well developed horizons. All soil samples were oven dried at 120°C for 12 hours, then crushed and pulverized to minus 0.15 mm using ceramic plates.
Stream-sediment samples consisted of 1 to 2 kg composite samples of sediments collected from small streams. These samples were oven dried at 120°C for 12 hours and sieved using a 80 mesh (0.18 mm) stainless steel sieve.
Heavy-mineral-concentrate samples
Heavy-mineral-concentrate samples were prepared by collecting a 5 to 7 kg composite sample of sediment and panning in the field to obtain the heavy- mineral concentrates. These samples were air dried and sieved to minus-18- mesh (<1.0 mm), and the magnetite was removed by using a hand magnet. The remaining concentrate was separated using bromoform (specific gravity 2.86) into a light and heavy fraction. The light fraction which contained mainly minerals such as plagioclase was discarded. The remaining heavy-mineral fraction was separated electromagnetically by using a Frantz isodynamic separator with a forward slope of 15° and a side slope of 20° at 0.6 amperes.
115
134°25 f 30* 134° 4
3i
Study Area
SCALE20km
15 mi
134°25* 30* 134° 41
115° 120° 140° 160C
Figure 1. Index map of Palau study area.
The magnetic fraction at 0.6 amperes contained primarily pyroxenes, amphiboles, and spinel minerals and was discarded. The nonmagnetic fraction at 0.6 amperes was split. One split was hand-ground to minus 0.15 mm with an agate mortor for spectrographic analysis; the other split was saved for mineralogical studies.
ANALYTICAL PROCEDURES
Each sample was analyzed for 31 elements using a semiquantitative, direct-current arc emission spectrographic method (Grimes and Marranzino, 1968). The elements analyzed and their lower limits of determination are listed in table 1. Spectrographic results were obtained by visual comparison of spectra derived from the sample against spectra obtained from standards made from pure oxides and carbonates. Standard concentrations are geometrically spaced over any given order of magnitude of concentration as follows: 100, 50, 20, 10, and so forth. Samples whose concentrations are estimated to fall between those values are assigned values of 70, 30, 15, and so forth. The precision of the analytical method is approximately plus or minus one reporting interval at the 83 percent confidence level and plus or minus two reporting intervals at the 96 percent confidence level (Motooka and Grimes, 1976). In addition, gold, tellurium, antimony, arsenic, bismuth, cadmium, and zinc were determined in each sample, except for heavy-mineral concentrates, using atomic-absorption spectroscopy.
A brief description of these procedures follows:
Gold A 10-gram sample is roasted for one hour at 700°C, gold is thenextracted with hydrobromic acid-0.5 percent bromine solution and MIBK (methyl isobutyl ketone). Flame atomic-absorption spectroscopy is used to determine gold to 0.05 ppm detection limit, samples below this limit are determined by electrothermal atomic-absorption spectroscopy using background correction to 0.001 ppm detection limit (O'Leary and Meier, 1986).
Tellurium Tellurium is extracted from a 5-gram sample with hydrobromic- 2 percent bromine solution and MIBK. Ascorbic acid is used to reduce iron interference. Flame atomic-absorption spectroscopy is used to determine tellurium to 0.02 ppm detection limit (O'Leary and Meier, 1986).
Antimony, arsenic, bismuth, cadmium, and zinc The metals of interest are solubilized from a 1.0-gram sample with hydrochloric-hydrogen peroxide solution and extracted with Aliquat 336-MIBK. Flame atomic-absorption spectroscopy is used to determine these metals. Limits of detection are antimony 2 ppm, arsenic 10 ppm, bismuth 1 ppm, cadmium 0.1 ppm, and zinc 5 ppm (O'Leary and Yiets, 1986).
The results of these analyses are shown in tables 2-7.
ROCK ANALYSIS STORAGE SYSTEM
Upon completion of all analytical work, the analytical results were entered into a computer-based file called Rock Analysis Storage System (RASS). This data base contains both descriptive geological information and analytical data. Any or all of this information may be retrieved and converted to a binary form (STATPAC) for computerized statistical analysis or publication (YanTrump and Miesch, 1977).
DESCRIPTION OF DATA TABLES
Tables 2-7 list the results of analyses for the samples. The data are arranged so that column 1 contains the USGS-assigned sample numbers. Columns 2 and 3 are the sample localities in UTM-N and UTM-E (Universal Transverse Mercator, zone 53). Columns in which the element headings show the letter "s" before the element symbol are emission spectrographic analyses; "aa" indicates atomic-absorption analyses. A letter "P" or "T" after the element symbol in the aa columns indicates partial or total digestion of the sample for that element. Values determined for the major elements (iron, magnesium, calcium, and titanium) are given in weight percent; all others are given in parts per million (micrograms/gram).
REFERENCES CITED
Grimes, D. 0., and Marranzino, A. P., 1968, Direct-current arc andalternating-current spark emission spectrographic field methods for the semiquantitative analysis of geologic materials: U.S. Geological Survey Circular 591, 6 p.
Motooka, J. M., and Grimes, D. J., 1976, Analytical precision of one-sixth order semiquantitative spectrographic analyses: U.S. Geological Survey Circular 738, 25 p.
O'Leary, R. M., and Meier, A. L., 1986, Analytical methods used in geochemical exploration, 1984: U.S. Geological Survey Circular 948, 48 p.
O'Leary, R. M., and Yiets, 0. G., 1986, Determination of antimony, arsenic, bismuth, cadmium, copper, lead, molybdenum, silver, and zinc in geologic materials by atomic-absorption spectrometry using a hydrochloric acid- hydrogen peroxide digestion: Atomic Spectroscopy, 7, p. 4-8.
VanTrump, George, Jr., and Miesch, A. T., 1977, The U.S. Geological Survey RASS-STATPAC system for management and statistical reduction of geochemical data: Computers and Geosciences, v. 3, p. 475-488.
TABLE 1. Limits of determination for the spectrographic analysis,based on a 10-mg sample
[The spectrographic limits of determination for heavy-mineral-concentrate samples are based on a 5-mg sample, and are therefore two reporting intervals higher than the limits given for rocks and stream sediments]
Elements Lower determination limit Upper determination limit
Percent
Iron (Fe)Magnesium (Mg)Calcium (Ca)Titanium (Ti)
0.05.02.05.002
201020
1
Parts per mil lion
Manganese (Mn)Silver (Ag)Arsenic (As)Gold (Au)Boron (B)Barium (Ba)Beryllium (Be)Bismuth (Bi)Cadmium (Cd)Cobalt (Co)Chromium (Cr)Copper (Cu)Lanthanum (La)Molybdenum (Mo)Niobium (Mb)Nickel (N1)Lead (Pb)Antimony (Sb)Scandium (Sc)Tin (Sn)Strontium (Sr)Vanadium (V)Tungsten (W)Yttrium (Y)Zinc (Zn)Zirconium (Zr)Thorium (Th)
100.5
200101020
11020
510
520
520
510
1005
10100
105010
20010
100
5,0005,000
10,000500
2,0005,0001,0001,000
5002,0005,000
20,0001,0002,0002,0005,000
20,00010,000
1001,0005,000
10,00010,0002,000
10,0001,0002,000
TABLE 2.
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112
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126
PA
138
PA
13
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79
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453,9
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453,9
83
454,2
85
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73
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-BA
:-B
CS
-BI
PM153
PM2D1A
PM231
PH205
PM216
PV217
PM218
PK219
PP. 220
P?«2
25
P M 2 2 5
P " 2 2 7
P"?2P
PM72Q
Prt2
3".
TM231
P K 2 1 2
PM211
P*215
P1715
PK262
PX263
P*261
P»"269
PK270
PM278
PM280
PK781
PK282
PK283
PM2B1
PM7S5
PM2B6
PT133A
PTIOOb
PT101A
PT1?2
PT103A
PT1D3R
PT105A
PT1D5C
PT1D7
PT1?8
PT11Q
PT11U
811,520
811,887
811,932
811 ,91 1
81U,692
811,692
811,693
811 ,6^(4
£ 1 1
, 6 o
i811,163
811,153
8 1 1
, U F,
2"11,166
811 ,166
811,156
P 1 1
, 1 F>
6811 ,181
811,132
811,317
811,338
814 ,918
811,657
811,538
811 ,560
811,382
815,189
811 ,781
811,752
811,913
811,711
811,767
811,765
811 ,761
811,965
811,965
R11 ,972
815,002
811,913
811,913
811 ,910
811,910
8 1 1
, 9 ? /i
811 ,912
A 11, 977
P11,981
151 ,111
151,551
151,511
151,572
151,252
151,251
151,251
151,252
151,253
151,319
151,315
151,313
151,308
151,305
151,301
151,297
151,319
1.51
,311
151,305
151,317
153,715
151,186
151,339
151,331
151,120
151,139
151,132
151,501
151,039
153,982
151,007
153,995
153,992
151,292
151,292
151,296
151,309
151,290
151,290
151,296
151,296
151,332
15", 106
151,391
151,377
5.0
1.5
5.C
15.0
15.0
20.0
20.0
3.0
10.0
5.0
5.0
3.0
5.0
7.0
3.0
5.r>
7.0
15.0
5.0
7.0
7.0
3.0
15.0
7.0
7.0
20.0
3.0
1.5
7.0
10.0
10.0
3.0
10.0
7.0
5.0
10.0
7.0
10.0
7.0
10.0
5.0
5.0
7.0
5.0
10.0
.15
.15
.50
.03
.07
.03
.05
.C5
. 10
.10
. 10
.07
.07
.07
.20
<.02
.03
.03
.10
.05
. 15
.15
.02
.03
.50
.10
.20
.70
.03
.03
.07
.C5
.05
.03
.10
.10
.03
.10
.10
.30
1.00
.15
.20
.10
.07
<.05
. 15
.10
<.05
<.D5
<.D5
<.05
<.05
<.05
<.05
<.D5
<.C5
<.:-
5<.05
<.55
N<.05
N<.05
<.05
.05
<.05
<.05
<.05
.05
N .05
.07
<.05
<.o^
<.05
<.05
<.05
<.05
<.05
<.05
<.D5
<.05
<.05
.05
.05
.50
.10
<.05
<.05
.300
.070
.100
.015
.150
.070
.070
.200
.150
.100
.150
.200
.200
.300
.30D
.010
.070
.050
.300
.300
.200
.200
.030
.030
.300
.200
.100
.100
.100
.070
.050
,.200
.150
.050
.200
.150
.050
.100
.300
.100
.200
.200
.070
.070
.050
>5,000
150
300
150
70
700
150
1,000
7007T 30
300
1,000
1,000 50
200 30
50
700
700 30
1,500 70
1,000
1,000 30
300
500
10020
2020
20
1,500
>5,000
500
200
2,000
150
300
500
1,500
200
1,00070
1.5 .7
5.0
1.0
N N N1.5
<.5
2.0 N N N N N
5.0
1.5
7.0 N N N N N
3.0 N N
3.0
1.5
2.0
<.5 N N N N
1.5 N N
3.0 N
2.0
1.5 N
3.0
10.0
7.0
N N K N K N N N K N N K N N N N N N N K N N N N N N N N N<200 N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N K N N N N N N N N<10 N N W N N N H N N K N N K N N N N N N N N
20 1CN N N N N V N N S N N >;
<1C N N10 N N
15N N
10 N N
<10 1CN N
10N N
<10 10 10N
10 15 15
<10
<10 10 2020
1,000
SCO K N
<2C N
<20 N70
150
100 N N N
150 N
50
<20 N K
50 N
<2050 N
70
70
20C 7C
<20 70 K30N
1CO
<20 N70 N
<20 N N
<2020 30
N N N N K N N N N N N N N N N N N N N N N N K N N K K N N N N N N K N N N N N N N N N N N
N N N N K N N N N N N N N N N 10N 15 N N N N N15N N N N N N N N N N N N N N N
<10 N N
<10 N N
CHEKICAL DATA FOR 15
1 VEIN SAMPLES FROM THE ROIS WALK APEA, PALAU--Continusfl
Sample
PM153
PK201A
-CD
;-ro
S-CP
;-cn
S-LP
S-HO
S-NP
S-NI
S-PB
S-SB
s-sc
5-SR
s-v
PK215
PN216
PX-2
17
PM218
P1219
Pv.220
PK225
Pf ?2
ft Pf 227
Ph229
PH230
PK231
PK242
P f. ?
'» U
PP262
P K 2
«. 3
PH26U
P.M2
69
PM270
PK278
PM2PO
PN281
PM282
PE2P3
PK285
PK286
PT100A
PT1HOB
PT101A
PT102
PT133A
PT103B
PT125A
PT115C
PT137
PT100
PT110
N N K II N h $ N I N N N N N N N N V N N N N N N N N N150 N N N N N N N N N N N N N N N N N
150<5
1C)
107
7010
73 SO
<ci N
15 70
1*0 N
.30
<S<5
3">
70 V 70 <5 10 70 N 7<5 N N 10N N
150
700 70 10 70 20 15 1C
1CO10
100 N
700
3CO
500
150
7*0
7HO
700
700
500
3CC
5^0
700
1 ,000
7^0 30
50
5CO
150
500
500
300
1,000
1,000 50
300
700
300
150
3TO
200
70
700
700
1,000
700
2,000
500
700
2,000
500
500 50
200
200
150
3CC 50
500
700
70C
1,000
700
50C
700
500
150
15C
200
150 50
70C
200
1,500
700
700
100
1,000
500
200
150
100
1,000
200
200
500
500
150
300
700
1,000
2,000
300
1 ,500
700
700
500
2CO
500
500
300
N20 N N N N N N S N N N N N N N N N \ N N N N N N N N
<20 N N N N K N N7 N N tf N N N N N N N
N15N N N N N N N N N N N N N N N N N N N N N N N N30 10 c
15 N N 5 N N N N N N N N N N N 5
N N N N N N N N M N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
500 10 30
2020
50 10
1*0 15 10 10
150
100
150 7 7 710
150
150 20
150
30 20
100 73030 7
<5 10
100 550
200
150
30 50
1CO30 50
1503020 5
30 70 15 20
100 30 50
150 20
<10 N
<10 10 10
<10
<10 10 10
<10 15 10 20
<10 20 10
<10
500
700 15 20 70
<10 15
<10 30 50 10
150
2070 10 10 20 50 70
N<100 1 N N N N N N
30 D N N N N N V N N X N N N N N N N K N N N N N N N N N N fJ N N K' N N N N
70
<5 20 7
30 30
305020
30 3r 50
505030 720 2130
53 3050
20 730
30 15 10
3030 15 3^ 15
30
50
70
3070
1DO 20 30
73 20
20 10
K N N N N N N ll V N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N K N K
N N N N N S N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N1 N N N N N N
BCD 30
150
150
150
150
73
2CO
100
100
150
200
2CO
200
2CO 2n
500 70
200
200
200
200
200
150
200
150
200 70
300
200
100
200
1CO
200
300
1,000
200
700
700
200
200
300
200
100 70
CHEMICAL DATA FOR
VFIN SAMPLES FROM THE ROIS HALK AREA, PALAU--rontinued
Sample
P ?. 2 0 U
PM205
P«21f
PK217
PM218
Ph219
PX22
C.
PF225
PK2M
PK227
PF228
PV229
Pr.2
30
Pv,?31
PM2U2
PF246
P«?52
PM263
PM264
P?259
PI: 270
Pf 278
PK28T,
P X 2 6
1 P7282
PK233
PK?f
l4PK285
PM286
PT110A
PT1TOP
PT1D1A
PT102
PT103A
PT103R
PT1D5A
PT105C
PT107
PT108
PT1D9
PT110
W H N ;; N N N N N N H N N N N N N N N N N N M N N N N N N N N N N N N N N N N N N N N N N N
s-y 20N N N N N N
<i: N15
<10 15 15 20N N
01 15N N' ti N N N N N N N N N N10N N
10
OT' N N N N N N K N N
S-ZN 300
70C
300
500 N
<200
<200 N N
<200 N
<2CC
<200
<200 N N N
<20C
<200 N N N
<200 N
<2f,
G N<200
10,0&0 N N
200 N N N
200
700
2GO
3CO
300
300
<200
<200
300
<200
200
S-ZR 30 20
20N
15
N V15 10 15 20 20 2C 20
30 N N
00 20 20 30
20 N N30 15 15 10 10 10
OP 20 15
00 20 10N
<10 20 10 15 15 10 10 10
S-TH V i; N »7 N N N N N N N N N N N N N N N N N N N V N N N N N N N N N N N N N N N N N N N N N
AA-AS- N
20 10
90 N
20
00 N N
170 10 N N N N N N N N N N N20
<10 N
30
50 10 10
130
20 N N10 N
10 10 N
<10 30 N N N N N
AA-7
.N-P
AA-CD-P
AA-BI-P
AA-SB-P
AA-AO-P
AA-IL-T
250
560
220
220 20
100
45
145
557D 560
14085 15 10 35
14580 20
20 2080
50 70 10
270
340
U5 10
17030 5
65
180
620
130
280
210
220
100
100
210
120
150
3.2
43 .0 . 1
.5 N N N .1
N N N .3 .2 N N N N . 1
N N N N N .5 N N2.1
5U. 0 N N . 1
N N . 1
.2
2.1 t 2
2.6 .6 .3 N .6 .5 ,U N
N N N V N 14 1 N 1 2 N N N N N 5 212N N N N 2 8 N 2 2 N N N N N S N N 3 3 3 N 3 1 N 2 1 2
N N N N * N N N N190 N N N N N N N N N N N N V N N N M N N N N N N N N N N N N N N V N N N
.026
.mo
.25:
*2.7DO
."142
.120
.OU5
.011
.026
.7(40
.260
.015
.22?
.021
.006
."9D
.150
?.2uO
.024
.010
.220
.020
.150
5.UOO
.050
.080
.600
.110
.03a
."430
1.580
.051
.024
.520
.039
.430
.090
.510
.120
.660
.420
.015
.iro
.430
1.320
4.c-2
.34
7.55
4.74
6. 10
6.28
4.03
3.39
6.22
7.45
7.62
4.72
6.36
6.68
5.62
9.60
U.20
8.80
b.42
2. 98
2.18
1.7b
4.74
10.90
1.94
5.55
2.68
1.10
6.65
4.37
5.41
1.88
4.12
4.60
2.00
8.52
11.20
B.44
2. 14
10.60
5.62
1. 16
6.42
6.62
4.88
CHEMICAL DATA FO
P 15
1 VE
IN SAMPLES FR
OM THE
BOIS
MA
LK AREA, PALAU--Continued
Sample
U T K -
? 'UTK-E
S-FE%
S-CA7
S-TIS
S-MN
S-AG
S-AS
AU
S-P
S-HA
S-RF
S-PI
IN:
PT11 1
PT112
PT114
PT115
PT116
PT117
PT1 18
PT119
PT12DP
PT121
PT122
PT123
PT124
PT125
PT126
PT127
PT130F
PT131
PT13?
PT136
PT137
PT139
PT14C
PT141
PT142
PT143
PT144
PTV45
PT149
PT152
PT153
PT157
PT177
PT190
PT191
PT2D8
PT210
PT222
PT228
PT246
PT250
PT253
PT257
PT?
C.9
PT?78
815,131
815,237
815,159
815,186
81C ,156
815,137
815,091
815 ,078
815,061
M5,04 1
fi15
,041
615,036
b15,259
815,350
H15 ,149
P15,107
814,923
P14 ,899
614 ,931
P1 4 ,8f
i 1
814, 9C8
815, u98
814,810
814,772
814 ,717
814,719
014,694
814,804
815,652
814,972
814,972
815,021
815,024
815, GGO
815,000
815,024
815,024
815, G?8
815,030
814,983
814,983
814,983
815,155
814 ,917
814,913
454,341
454,?97
454,380
454,137
454,105
454, C92
454,070
454 ,054
454,055
454,045
454,045
454, C58
454,131
454,153
453,751
453,752
453,730
453,728
453,724
453,957
453,971
453,595
453,938
453,924
453,897
453,882
453, R14
453,728
453,953
454,311
454,305
454,274
454,292
454,295
454,299
454,297
454,300
454,325
454,339
454,299
454,304
454,311
453,719
453,732
453,745
10.0
7.0
7.C
20.0
10.0
15.0
15.0
5.0
5.0
5.0
5.0
10.0
5.0
5.0
10.0
3.0
5.0
7.0
7.0
3.0
10.0
7.0
15.0
10.0
3.0
5.0
7.0
5.0
2.r
7.0
10.0
7.0
5.0
7.0
7.0
7.C
10.0
10.
C5.0
10.0
15.0
5.0
3.0
5.0
3.0
.30
1 .00
.10
.05
.10
.07
.03
.03
LOG
.03
. 15
<.n?
.5C
.70
.20
.07
.10
.10
.15
.30
.50
.07
.02
.05
.07
.05
.07
.15
<. 17
.03
.15
.03
.03
.07
.07
.15
.10
.10
.15
.03
.m
.03
.10
.15
. 15
.15
.05
.05
<.05
<.05
<.05
<.05
<.D5
<.05
<.05
<.05
<.05
<.05
.05
<.05
<.D5
<.05
<.05
<.05
.05
<.05
<. 05
N<.05
<.05
<.05
<.05
<.05
<. 05
<.05
<.05
< . 05
<.05
<.05
<.05
<.05
<.05
<.05
<. 05
<.05
<.D5
< . 05
<.D5
<.05
<.05
.200
.150
.030
. 100
.150
.070
.050
.070
. 100
.100
.300
.070
.500
.300
.150
.300
.150
.300
.200
.150
.200
.150
.030
.100
.100
.100
.150
.070
.200
.300
.150
.070
.300
.150
.150
.300
.150
.100
.200
.300
.200
.070
.200
.150
.300
5,000
700
>5,000
2,000
1,500 50
100
103
1,000 7 C
7070
2,000
1,000 50
30020 30
100
300
1,OOC 70
200
100
200
2,000
200 70
1,000
5,000
1,500
1,000
1,000
>5,000
500
1,000
700
500
1,500
1,500
300
700
3,000 7020
10. 0
15.0
20.0
1.5 N N
3.0
2.0
2.0
1.0 N N N N
20. 0
5.0
5.0 N N N N N
1.5 N N
10.0 V N N
3.0 S
1.5 N
7.0 .7
1.5
1.5
<.5
3.0
3.0 N N N N N
N N N N f? N N R N N N N N N N N N N N N N ff N N N N N N N N K N N N N N N N N N N N N N
N N M N N N N N S N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
15 10 15N
<10
<10 N15 15 15 1CN
15 15 15 1C 1 r-
15 15<1
C 10 10N
<1C 10 11
<1 0 15N N
<10 10 10 15 15 20 20 20 20N N
15 20 20 50
70N
700 20 150
<20
<20
<20
<2C 33 150
<20
<20 20
<20 N 2:* 30 30
<20
<2r
<20 N N
<20
15?
<20 V N
<20 70
10G N
200 N
50 70
20150
<20 3CN
500
10070
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
10N N N N N N N N N N N N N
<10 N N N N N N N N N N N N
< 10N N N N N K N N
. N K N N N N N N N
CH
EM
ICA
L
DA
TA
FOR
15
1 V
ETN
SA
MPL
ES
FRO
M
THE
RO
IS
MA
LK
AR
EA
, P
«L
AU
--C
onti
nued
Cv
Sam
ple
rns-r
oS
-CP
s-ru
S-L
AS-
MO
S-V
PS
-NI
S-P
BS
-SB
S-5
CS
-SN
S-V
PT11 1
PT112
PT11H
F T
1 1 "
PT116
PT117
PT118
PT119
PT120P
PT121
PT122
PT123
PT12U
PT125
PT126
PT127
PT130F
PT131
PT132
PT136
PT137
PT139
PT-UO
PT1U1
PT1U2
PT143
PT1UU
PT145
PTI'
49PT152
PT153
PT157
PT177
PT190
PT191
PT2C
.8PT210
PT222
PT228
PT2U6
PT250
PT253
PT257
PT259
PT278
K N N K N N>500 N
>500 !1 ft K »; h N N N M K N" ,; fj k N N N N7 N N N N N N N' N N N N N M N N M N N
50 20
2,000
100 15
N70
c,
70
20 K N
1.'iO
50 <5 10K N 5
15 50 N10 <5 1C
200 1 0 N
100
200 70
20 50300 50
15070 20 15
150
70
7070 N N
70C
2,000
1,000
5GG
700
200 70 50
300
300
1*0
150
1,000
1,000
700
200
300
500
200
700
100
300
150
500
700
300
300
15C
200
1,000
1,500
1,500
500
1,000
700
1,000
1,000
1,000
200
3,000
2,000
700
300
200
150
1 ,000
1,000
5,000
2&0
300
300
3,000
300
5,000
200
200
3CO
500
500
3,000
700
200
500
500
500
700
150
700
500
200
700
500
70C 30
2,000
2,000
700
200
1,000
700
700
700
700
300
1,500
3,000
500
200
5CO
150
N N N K N N N N K N N N N N N N N N N N N N N N N N N N N N N K N N N N N N N N N N N N N
N N K N N
20 N 5 715
N<5 V K1C
N N N N10
N15N N N 7 N
30 N N K N N N K N" N K N N N N N N N
N N M if N N N N N N N >J N s N N N N N N N N K N N N N N N N N N N N ^y N N N N N N N N N N
100
150
500 30
20 15 50
<5 50 30
<5
<5
200
100 20 30
<5 15 20
3 0
50 10 20 30 50 7030 750
200 70
100
150
300
100
100 5050 15
150
15070
50 15 10
700 30 50 30 15 70 30
<10 20 30 15 20 15 10 50
100
150 30 20 15
00 15 5C 30 20 5C 30 15 N50 20 50 50
300 50 7D 70
70
700 70 50 10
150 10
150
N N N N N N N N V N' N N N N N V N N N' N K N ff N N K N N N N » N N N N N N K N N ,- N N N M
3C 30
>1DO 30
5C 30 1C 15 20 15
30 730
30 30 30
20 3030
20
2^ 23 3C 3D30
3D
50 30
30
70 7050
70 7070
7070
70 7070
100
50 30 3030
N N N N N N N' N N N K K N N N N N N N N N N N N N ^ N N N N N N N N N K N K N N N K S N N
N N<100 N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N' N N N N N N N N N N N
300
200
500 70
200
150 50
150
150
150
300 50
200
23?
300
200
5DC
300
200
200
150
300
300
300
300
150
200
100
150
200
300
300
200
30D
500
30P
200
500
300
500
1,000
150
200
200
300
CHFNICAL DATA FOR 15
1 V^IN SAMPLES FROM THE ROIS MALK APEA, PALAU Continueci
3a uple
PT11 1
FT112
PT114
PT115
PT110
PT1 17
PT11fi
PT1 19
PT120B
PT121
PT122
PT123
PT124
PT125
PT126
PT127
PT130B
PT131
PT132
PT136
PT137
PT13P
PT14G
PT141
S-M
s-y
S-ZN
S-ZR
S-TH
AA-AS-P
PT143
PT144
PT1<45
PT149
PT15?
PT153
PT167
PT177
PT190
PT191
PT208
PT21C
PT222
PT228
PT2U6
PT250
PT253
PT257
PT?^C|
PT270
N N N N N N N N K X N V N' N N N N' N K N N N N N' N N N N" N N K N N N N N N N N N N N N K »l
20 N
20 N10
N N N N N N N15N N N M N N N
15N
20 N N «i N N
<1 0 * K N N10N
<10 N N
<10 N N N N N1 M
700
<200
500
<200
<200
<200
>10,000
20C
>10,000
500 N N
500
200 N N \ N
<200
200
200 N
200 N
<200 N N N N
200
200
<200 N
5^0
500
500
300
700
700
<200
700
<200 N N N
20 10 1C 10 10
N 1P n 10 15 3CM
3^ 20<K- 2n
20 30 2f">
15 2020
00 15 20 20 15N
20 15 10 in 20 15 10 20 15 10 20
20 1C,
<10 2r
2n 3^
K N N V N N N K N K N N N N K V N N N K N N N N N N N N N N N N N K N N N N N N N N N K N
N N10
20
20 10 10
<1 0 N20 30 10 N N40 1040
?0 30 10
00 30
130
1040
50
70
40 N10
10 N N1000 N N10
30 N
20 20 N N30
AA-ZN-P
460
110
350 15
100
AA-CD-P N
21 .0
N . U
AA-BI-P
6 N 1 2
AA-SB-P
AA-AU-T
AA-TL-T
gR
>2,noo 50
>2 ,
^00
140 4020
160
130
85 50 55 10
100
120
190 15
120
35
90 35 3045 10
220
210
110 40
460
390
350
270
700
820
170
650
150
25 40 5
N>100.0 .2
>100.0 .7 .2 N .3 N N N N N N .2 N N .1 N .1 .5 N K N .
1
.2 . 1
N3.1 .9 .7 .7
1 .7
1 .8 .8
1 .9 .1 .
1N N
2 K 1 N 1 N N N V 6 3 1 1 1 1 N 1 1 »J N N N 2 N N 4 N N N N N 2 1 2 3 4 1 N 1 N
N N N N N N N N N N N N N N N N N N N N N N N ft) N N N N N M N N N N N N N N N N N N N N N
3.000
.150
.450
.240
.180
3. 900
3.600
.440
1.180
.230
.340
. 120
.017
.024
.65?
.50J
3.300
.r?D
.060
1.090
.070
1.950
.250
.070
.100
.310
.250
.7TO
.015
. 150
.130
.180
.007
.510
.180
.410
.470
.580
.960
.180
.470
. 140
.21(0
.03P
.720
6.22
3.52
a. 90
6.25
6.90
4.9b
4.23
7.92
6.26
3.36
5. 17
1. 16
.58
1.31
10.3^
6. 9U
2.82
3.25
1.76
Q.28
3. 19
3.63
2.87
3.36
.40
3. 19
a. 76
3.93
.02
3.62
9. 12
2.34
.34
3.61
4. 12
6.94
5.50
6.60
13.00
5.64
8.34
8.76
.66
?.c.o
1.74
CHEMICAL DJ
»TA
FOR
151
VEIN SAMPLES FROM THE ROIS HALK AREA, PALAU--Continuad
Tample
UTM-N
UTM-E
S-FE%
S-HG
7.
C-CA%
S-TI%
S-MN
S-AG
S-AS
F-AC
S-P
F-PA
T-PF
5-HI
PT280
PT290
PT291
PT307
PT30Q
PT31 1
PT313
PT314
PT315
PT31 7
PT31P
PT320
PT321
PT322
PT324
«14,91 1
815,898
815,875
815,068
P 1
(4 , Q Q 2
8 1 5
, C 1
5ft
1 4
, 9 1
4P
1 4
, 9 4 3
R 1 4
, Q 4 0
814 ,937
"14,940
P. 1 4
, 9 4 8
R 1 4
, 9 4 7
P 1 U
, 9 14
«814,946
453,749
454,183
454,203
454,004
454,026
454,023
454,041
454,039
454,042
454,029
454,014
453,991
453,983
453,965
453,945
5.0
3.0
3.0
10.0
10.0
5.0
7.0
7.0
5.0
15.0
1 5
. C
15.0
10.0
20.0
20.0
. 15
1 .50
.2C
.20
.20
.10
.07
.03
.05
in
.10
.07
<.02
.03
.07
<.05
.70
<.D5
N<.05
<.05
< . 35
<.05
N<.05
H N N N<.05
.300
.300
.200
.300
.300
.2CO
.200
.200
.150
.200
. 200
.200
.300
.070
.070
50
>5,000
150
1,500
100 T*
300
50
1,000 53 50
150
20
500
>5,000
N N10.0 .5
<.5 N N
30.0 .7 N N
5.0 N N
3.0
N N300 N N « N N K N N N N N W
N N10N N N N N N N N N S N N
30
<10 30 1C 20 15 N
<10
<1 0 15 2C N V N N
50
300 20
<20 70 20
70
70
150 70
<20 20 N
<20
200
N N N N N N N N N K K N N<1 <1
N N N N N N N N N N N N N N N
PT32*
814,93n
453,895
15.0
.05
N .203
150
N N
S N
N <1
O1
CH
FH
ICA
L
D*.
TA
FOP
151
VE
IN
SAM
PLE
S FR
Off
TH
E R
OT
S H
A1.
K
AP
E?,
P
AIR
U--
Conti
nuart
S-CD
s-
rn
s-rp
s-
cu
S-LA
S-
MO
S-NR
S-
NI
S-PB
S-
SP
s-sc
S-
SN
s-sp
s-
v
PT280
PT230
PT291
PT3C*7
PT309
PT311
PT313
PT31U
PT315
PT317
PT31B
PT320
PT321
PT322
PT324
PT326
N ?0
150
500
V N
N 3C
<10
H 50
N N
200
N N K N N N N N N N N N N N N
N70 N
ire 5 »; N1C 7r N N 7 N20
3CO
150
300
100
500
2 00
700
500
300
300
500
150
100
100
300 50
300
700
700
1,000
500
150
150
150
300
300
300
200
700
300
300
N N N N N N N N N N N N N N N
N N100 10 10 15 5 N 5 5
20 N N N V
N N «? N N N N N N N N N N N N
515
0 101DO 15 205
2r.
20 10
730 30 5050
70 30
200 30 10
<10 50 15 30 15 10
<10 15
<10 70
N N N N N N N N N N N N fj N N
3D
3T 15 50
5C 3C 30
20 50
50
507031
5050
N N N N N N N N N N S N' N N N
N150 N N N N N N N N N N N N N
3CO
200
150
200
300
200
3CD
300
300
200
200
200
300
150
150
CHFMICAL DJTA FOR 151
VEIN SAMPLES FROM THE POIS HA
1.K
ARi;
A, PALAU Continusd
?a uple
PT2BT
PT29
C.
PT?91
PT307
FT33P
PT31 1
PT313
PT31U
PT315
PT317
PT318
PT320
PT321
PT322
PT32U
PT326
V
S-Y
5-ZF
AA-RS-P
N N N N N N N N N N N f N N N
15 20 15N N N N N
<10 K N10N
1 5
30
N<2^ 0 K N
500 N N N
<200
<200
<20C
300 NT
500
700
20 10 20 20 20 10
<10
<1 0 15 20 20 10 2H
<10
<10
N N N N N N N N N y N N N K N
D-0 N
300 10
30
2030
2020RO
5050 1010
30
N-P N
200 70 95
310 20 10 10 90
AA
-CD
-P N 5. a .2 N .1 N N N .5
AA
-BI-
P
1 N U 1 2 1 2 1 N'
AA-?.U-r
AA-TL-T
3ro
20
25
100
320
aoo
630
310
N' N .2
3 .5 .1
2 N 2 N N N N N N K
.910
.110
13.000
.110
.21C
.080
.130
.060
.050
. 1RO
3.75
. 13
13.90
5.98
5.32
3.37
8.78
9.62
U.6U
2.70
.210
.090
.030
3.500
.050
1.53
5.82
.62
.03
TABLE 3. CHEMICAL DA
TA FOR
163
CHANSFL SAMPLES FR
OM THE
KOIS KA
LK ftRtA, PALAU
not
detected; <, rietectel
but
below the
limit of determination sh
own;
>, determined to be greater th
an th
e value shown.]
cc
Sample
JR100
JK1D2
PA127
PA128
PA129
PA 130
PP.1
31
PA132
PA133
P/-.13U
PA1?5
P A
1 ^ 5
PA137
PF1D3
PK1D1
PMD5
PK107
PMI?
BPM109
PK110
PK11 1
PI'137
PK138
PM139
PMUO
PM141
PM145
PMI'
46
PM
'48
P
MU
9
PK
15
0
PM
151
PM
154
P«155
Pf 156
PM157
PS 158
PK208
PP209
PK210
PK21 1
PM212
PM213
-FE^
7.1
5.:
5.0
5.0
3.0
^. 1
5.0
5.0
5.0
7.0
10.0
1".0
3.0
3.0
3.0
2. Q
1.s
3.0
3. 0
3.''
3.0
3.:
3.1
3.0
3.0
3. 1
3.0
5.0
5.0
3.0
3. '>
5.0
5.0
5.0
3.0
3.0
5.0
3.^
3.1
7.0
7.0
7.0
7.0
5.0
7.0
S-MG*
.07
.15
.10
.07
.07
.07
. 1C
.07
.17
. 1C
.1C.
. 1^
.07
. 10
. 15
.07
.05
.07
.07
. 1C
.07
.07
.07
.10
.07
.10
.10
.30
.20
.20
.20
.30
.50
.30
2.00
2.00
1 .50
1 .50
2.00
.20
.15
.1C
.07
.10
.15
S-CA%
<.05
N N N V N N N N N N N N<.05
<.05
<.05
N V <.O
E;<.C5
<.05
<.0
Ei<.05
<.05
<.05
N<.05
<.05
<.05
<.D5
<.05
<.05
.07
<.05
2.00
3.00
5.00
2.00
3.00
<.05
<.05
<.05
<.05
<.05
<.05
S-TI%
.30
.50
.30
.50
.50
.50
.30
.30
.30
.50
.3C
.^r
,3C
.5C
.30
.bO
.30
.C0
.50
.50
.50
.50
.30
.30
.30
.50
.30
.50
.30
.30
.30
.50
.^0
.30
.30
.30
.30
.30
.30
.50
.50
.50
.50
.30
.30
S-MN
3^0
200
3,000
300
300
150
150
100
1^0
2CO
1 ,500
500
200 2*.
30 30 3" 70 5"
150 70
70200
5, COO
300
200
200
1,000
1,000
1 ,500
3, COO
700
1,500
1 ,000
700
1,000
1,000
1,000
1,000
3,000
1,000
700
1,000
1 ,500
3,000
S-AG
2.0 V 1.0 K N »f N N S N .5 M N N N N N K N N N N N N fj N K K N N M N N N S N N N N N N N N N N
S-AS N N N N N N N N V u N N K N K N N N N N N N N N N N V N N N N N N N N N' N N K N N N N N N
S-AU N N N N V N N N N N N N N N N N N N N N N N N N N N N N N N N N N N K N N Nr N N N N N N N
S-R 11N N N N N N N M N
<10
<10 N10N K S
10<10 N
10<10
<10 10
<10 10 10N
10<10 f N K N10
<10 N N N N N' N N N N
S-3A N N
100 N N N N N V N
15020 N N N N N I N N K M N70 N N50 N
<20 20
1CO
2C 50 N N N N N N
<20 V N N
<20
100
S-BFl
N N N N N N N N fj N f; N N N N N N N N' N N V K N N N M N N N N K N N K K N N N N N N N N N'
S-HI N N N N N N N N K N N N N N N N N K N N N N N N N N K N N K N N N N N N N N N N N N K N N
S-CC N N N N K N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
PH
EF
TC
flL
D
ATA
FO
R
163
CH
AN
NEL
S
AfP
LF
S
FRO
H
THE
POT
S FA
LK
AR
EA
, P
M,A
U--
Conti
nued
JP100
J R
1 0 2
PA127
PA128
PA129
PA130
PA131
PA 132
P ,M
3 3
PA13U
PA136
PA137
PM33
PM13U
PM05
PM06
PH137
PM10R
PK109
PM1D
PH1 1
1
PK137
PM138
PK139
PM1UO
PK1U1
P K
1 U 5
PM1U6
PM1U7
PK1U8
PM150
PK151
PM15U
PM155
P1156
PM157
Pf158
PK208
PK239
PK210
Pf21 1
P«21?
PM213
-co 7 N70
<c.
<5 <5 <5V N
10 no 20N N' N' N K N
<55
<c 5
20
200 7
23 n 73 70 20 73 53
100
100 7T 50 51 50
50100 7^ 70 70
71
150
?-CR
700
2CO
20C
3CO
300
300
300
200
2^0
300
300
7<"C
300
150
150
10070
150
150
100
150
150
200
200
150
200
200
700
700
700
300
700
700
500
300
200
500
200
300
2,000
1,000
1,000
1,500
700
1,000
S-CU
700
no
5PO 70
no
150
no 70 70
10C
700
3007070
no 30 30
50 7^
no
150
150
150
200 70
70
200
100
200
150
150
150
150
150 30
150
100
100
70
150
150
150
200
150
200
S-LA N N N N V N K N K N V N N N N N N N N N N N N N N N V N N N N N N N N K N K N N N N N V N
S-MD N N N N N N N N N N N h N N N N K N N N N N N N N N N N N N N N K N N N N N N N N N N N N
S-NB N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
S-NI
10030
1305050 50
303050
50 50505030
30
505050
50
100
100
150
100
10070
no
100
150
100
100
100
no
150
150
150
150
100
no
150
200
200
230
300
150
300
S-PB
1503050
<10 N
<10
<10
<10
00 10
150 50 10
<10 N N N N N N N N
<10 N
<10
<10
<10 307020 15N
50N N N N N
<10 30
<10 10
<10 N N
S-SR N N N N N N N N N N N N N N V tS N N N N » N N N N N N N N N «J N N V N N N N N N N N N V N
S-SC 50
33 50
533D 3D 33 33
3D 53
70 53 33 33 33 33 33 33 3D3D 33
53 50 5053
50 5D
53 33 50 53 53
70
73 33
3D 50 3D 3370 73 73
7070
100
S-SN N N N K N N N « N N N N N N7 N N N' N N N N N N N N N S N N N N N N N N N N N N N N N N' N N
S-SR N N N N N N N N K N H N N N N N K N N N N N N N N N N N N Nf N N N N
300
300
300
300
300 N N N N N N
S-V
200
200
300
300
5CO
300
20C
200
150
200
300
3 CD
200
2"0
300
300
300
300
300
300
300
300
200
300
300
300
300
200
300
300
200
200
300
200
300
200
200
200
200
200
300
300
300
300
300
CHEMICAL DATA FOR 1*3 CHANNEL SAMPLES FROM THE ROIS MALK AREA, PALAU--Cotltinued
Sample
CO CD
PA127
PA 128
PA129
PA13G
PA131
PA 132
PA133
PA13U
PA135
PA136
PA137
PK103
PK10U
PK105
PH116
PM107
PM10H
PM1T9
PK110
PM11 1
PM37
PM138
PM1UO
PK1U1
PW1U5
PMU6
PMU7
PK1UB
PMU9
PK150
PK151
PK15U
PM155
PM156
PM157
PM158
PK208
PK210
PM211
P K 2
1 2
TM213
U N N K N N N N N K N' N N N N N V N N R N N N N N N N N' N N N R N N N" K N N N N N M N K N S'
S-Y N
< 10N S N N N
O 0 R N
15<10 N
< 1 0
15
00
03
<10
< 1000 N00
< 1 0
1500 N00 15 30 10
00
< 10 10 15 20
20 20 15 15N N N
< 10
<1 0
00
S-ZR
<200
<200
<200 N N N V N N N
<200
<2CO N N N N N N N N N N
200
<200
200
<200
<200
200
300
200
<200
<200 N
<200 N N N N N
<200
<200
<20C
<200
<206
<200
S-ZR
30 33 30 30 30 30 3D 30 3r
30
2f 30 30 50 3C 50 50 5C 50
50 50 70 30
30 50
50 50 30 30 20 30 5C 30 30 30 30 3020 30 20
30 30 30 20 30
S-TH N N N N N N N N N N N N N N N N N N N N N N N N N v N N N N N N N N N N N N N N N N N N V
AA-AS-P
N N R R N N R S N N N N N N N N N R N N N N N N N N N H N N N N N N N N N R N N N N N N N
AP-ZN-P
7020
130 30
30 20 15 10 15 20 308550 R N R N 5105
105
130
150
85
6080
85
135
125 7550
UO50
65 50 35
60 50
90
90
65
100
100
160
AA-CD-
.1 R N N N H N N N N .1 H R N N N N N N F N N R3.6 N R N .U
1 .2 .3 .U N N N N N R N K .3 N N R R v
AA-BI-P
N N N N K N N N N K N
AA-SB-P
AA-AU-I
AA-TE-T
N N N N N N N N N N N K N K N N N N N N N N N N K N N N N N N N N N N R N N N N N N N N N
.009
.015
.002
.001
.^02
.005
.003
.032
.002
.005
.510
.160
.006
.001
.001
<.0u1
."02
.003
.001
.001
<.001
<.001
.oou
.016
.005
.OOU
.021
.004
.037
.oou
<.001
<.001
.^01
<.001
<.001
< . D 0
1<.001
<.001
<.001
.002
.002
.001
.001
<.001
.001
. 10
. 12
.98
.02
<.T2
<.02
<.02
<.D2
<.02
<.02
.90
.41
.^6
3.28
2.88
1.22
1.8U
.79
.87
1.00
.59
.63
.23
1.5U
.50
.35
1.68
. 18
2.03
1.00
.95
.06
. 13
.02
.02
.02
.02
.02
.02
.23
. 1U
.10
.03
.1 1
.OR
CHEMICAL DP
.TA
FOP 1*3 CHANNEL SAMPLFS FROM THE ROIS "!ALK
ARE?, PALAU Continued
S-ICrJ
S-CA%
S-TI
7.
S-MS
S-AG
S-AS
S-AU
S-B
S-BA
S-BE
S-bl
S-CD
PM21
U
7.0
.1
0
<.0
5
.30
70
C
N N
K V
<2
n N
N N
PK
215
3.'j
.07
<
.C'5
.3
0
1,0
00
N N
M N
100
S N
NP
K23
2 3
.0
.10
<
.05
.3
0
50
N N
N 13
15
0 N
N N
PK
233
5.0
.1
0
<.0
5
.30
150
N N
N 15
<
20
N N
NP
H23
« 3
.0
.10
<.0
5
.50
200
N N
N N
N1 N
N N
PM
235
5.1
.2
0
<.0
c; .5
0
500
N N
N <
10
N »3
N N
PK
236
3.0
.0
7
<.0
^
.30
1,0
00
<.5
N
N N
N N
N N
PM
237
5.0
.1
0
<.0
5
.50
500
W N
N N
N' N
N N
PK
23P
?.
:<
.15
.0
5
.30
50?
N N
NJJN
NN
NP
M23
9 3
.0
.10
<
.05
.3
0
300
N N
N 15
50
N
N N
PM2U
O
5.0
.1
5
<.D
5
.30
1,5
00
N
H K
<1H
<
20
N N
NPK
2U1
3.i
.0
7
<.0
5
.30
1
,00
0
N N
NH
NN
NN
PM2U
8 5.0
.0
5
N .3
0
2C
N H
N <
10
N N
N N
PM2U
9 3
.1
.10
N
.50
30
H
N N
10
N K
N N
PF
250
3.0
.1
0
N .3
0
20
N N
N 15
N
N N
N
PM25
1 3.0
.1
0
N .5
0
30
N M
M
10
NN
NN
Pf2
52
3.0
.1
0
N .5
0
3^
N' N
N 10
S
N N
NP
M25
3 2
.0
.07
<
.05
.3
0
20
N N
N 10
N
K N
KPK
25U
3.0
.1
1
N .3
0
35
N N
N 10
!»
N N
NPM
255
3..i
.03
N .5
0
100
N N
N N
N N
N N
P*
25
6
5.0
.1
0
N .5
0
700
N N
N «
<2
? H
N N
Ptf
?57
5.D
.0
7
N .5
0
150
N V
N
N N
NN
NPM
258
5.0
.0
7
N .5
0
1,0
00
N
N N
N N
N N
NP
K25
9 5.0
.0
7
N .5
0
/ 700
N N
NN
NN
NN
PM
260
5.0
.1
0
N .5
0
150
N N
N
N N
NN
N
PK
265
5.0
.2
0
<.0
5
.30
3"
N N
N 15
200
N N
NP.
M26
6 3.0
.1
5
<.0
5
.30
3r
N N
N 15
100
N N
NP
K26
7 1
5.0
.0
2
<.C
5
.05
50
N
N N
N <
20
N N
NP
K?7
1 5
.0
.03
N .3
0
200
N V
N »
N K
N N
PK
272
5.0
.1
0
N .5
0
500
N N
N N
N N
N N
PK
273
7.0
.2
0
N .3
0
150
N N
N <
10
NN
NN
P«2
7U
5.0
.1
5
N .3
0
150
N N
K 10
20
N
N N
PK
275
5.0
.0
3
N .5
0
200
N N
N N
N N
N N
PK
275
7.0
.0
5
N .3
0
200
N N
N <
10
NN
NN
PT
1U8
2.0
.1
0
.15
.15
300
N N
N N
N N
N N
PT
15U
7
.0
.07
<
.05
.3
0
3,D
OD
N
NN
15
N
NN
NP
T155
7.0
.0
7
N .3
0
5,0
00
N
N N
10
<20
N
N N
PT
157
5.0
.0
3.
<.0
5
.30
1
,50
0
N N
N <
10
NN
NN
PT
159
5.1
.0
2
N .3
0
1,0
00
N N
N <
10
S V
M N
PT
150
5.0
.0
5
<.0
5
.30
1,5
00
N
N N
N <
2C
N N
N
PT
151
7.0
.0
7
<.0
5
.30
3,0
00
H
N N
10
<20
N N
NP
T16?
^.T
.0
5
<.0
5
.30
1,0
00
K
N N
10
N N
N N
PT
163
5.0
.1
0
<.0
5
.30
1
,50
0
N N
N10
NN
NN
PT
155
3.0
.0
7
N .3
0
700
N N
N 10
N
N N
NP
T166
3.0
.1
0
<.0
5
.30
300
K N
N 10
<
20
N N
N
CHEMICAL DATA FOR 16
3 CHANNEL SAMPLES FROM THE POIS MALK AREA, PALAU--Continuert
Sample
PK214
PM215
PM232
PH233
PM23U
PM235
PM236
PM237
PM238
PK239
PN2UO
PM2U1
PK2U8
PK2U9
PK250
PN251
P«252
PM253
PH25U
PM255
PM256
PM257
PN258
S-CO
S-CR
S-CU
S-Lfi
S-MO
S-NB
S-NI
S-PB
S-SB
S-SC
S-SN
S-SR
S-V
PN260
PS265
PH266
PK267
PM271
PM272
PM273
PK27U
PH275
PM276
PT1U8
PT15U
PT155
PT157
PT159
PT160
PT161
PT162
PT163
PT165
PT166
70 70N
15 15 2D 70 50 15 20 70 150 <55
<5 <5 <5»! N 5 7 7
71 70 10
N N Nf N15
N N N<5 70 150
100 70 73 70
200 ?r 70 70 n
700
300
700
200
300
300
500
300 50 150
200
150
300
500
300
300
300
500
500
300
500
200
300
200
300
150
100
2,000
700
2,000
1,500
200
100
100
300
1,000
1,000
700
500
700
1,000
700
500
500
700
150
150
150
100
200
200
200
150
100
300
300
200 50 70 50
50 5030
10070
100
5010
0150
100
150 50
300
200
200
200
150
100
15030
2,000
2,000
300
200
500
700
500
500
200
200
N N N N N N N N N N N N N N N N N N N N H N N N N N K K N N N N N N<20 N N V N' N N N K N N
N N N N N N N N N N N N N N K N N N N N N N N N N N N N N N N N N N N N N K N N N N N N N
N N N N N N N N N N N K N N N N N N N N N N N N N K N N N N N N N N N N N N N N N K N N N
200
150
20
50 100
100
150
150 50 30 7070 30 50 50
70
70 70 100
100
150
100
150
150
150 1C7
20 150
150
15030 2030 30
200
200
150
150
150
150
100
100
100
100
< 10 10
<10
< 10N 10 10
< 10
< 10N
<10
< 10
< 10 N N
<10 N N V
<10 30N
< 10 10N N N K N 10
(J N N< 10
(J
30 70 10< 10 20 70 50 20 30 30
N N N N N N N N N (J (J N N N N K (J N N N N N N N N K N N N N N N N N K N K N N N N W N K K
7D 50 3D 3D 30 53 3D 50 30 33 30 30 3D 3D 3D 3D 3D 3D 30 3D 50 5D 5D 5D 5D 3D 3D 23 50 53 50 30 33 50 15 70 70 70 5D 70 73 7D 70 73 70
N N N N N N N N N N N N N N N M N N N N N N N N N N N N N " N N H N N N N N N H N N N N' N
H N N N N N N N H N N N N N H N N N N N N N N N N N N N H N H N N N N N N N N N N W N N N
300
300
300
300
300
300
200
300
300
200
30D
300
300
300
300
30D
300
300
300
300
300
300
300
300
300
300
300
200
300
300
300
300
3CO
300
150
500
500
300
200
300
300
300
300
300
500
PHEWICAL DATA FO
R 163
CHANNEL SAMPLES FROM THE ROIS WALK AREA, PALAU--Continued
S-W
S-Y
S-ZN
S-ZR
S-TH
AA-AS-P
AA-7N-P
PF214
PM215
PK232
PH233
PH23U
PK235
PK236
PK237
PK238
PK239
PK240
PK241
PM249
PM250
PP251
PK252
PK253
PK254
PK255
PN256
PH257
PK2.
58
PK259
PK26D
PP265
Pf 255
Pf
.257
PK271
PM272
PK
27
3
P??
274
PF
27
5
PK
275
PT
14
8
PT154
PT155
PT157
PT159
PT150
PT151
PT162
PT153
PT165
PT166
N N N N N N N N N N N N N N N N N N N N N N K N N N N N V N K N N N N N N N N N IT N N N N
N N N< 10N N N
15N
<10 15N N N N N N N N N
<10
<10 N
<1 0
<10 N
<1 0 N N
<10 N
<10
<10 10N N N N N N N
<10
<1 0
<1 0
<10
<200 N N N N
'
N N N N N
<200 N N N N N N N N
<200 N N N N
<200 N N N N
<200
<200 N N
<200 N
200
200
<200
<200
200
<200
<200
<200
300
300
30 30 30 30 50 50 30 30 30 2n 3D 30 30 30 30 30 3C 30 30 30 30 30 30 30 30 20 30 10 30 30 30 50 50 30 15 20 20 30 20 30 3n
30 30 30 30
N N N N N N N N N N K K N N V N K N N N N N N N N N N K N N N N N K N K N N N N N JJ N K N
N N40 N N N N N N N N N N N N N N N N N N N N N N N60 N N N N N N N N N N N N N N N N N N
75 80 20 25 15 65 70 2C 25 15 70 405 N N N N N
15 40 55 5565 50
30
515 65 90 50
130 25 20
110 25
230
100
200
110
190
160
1U5
120
150
130
AA-CD-P
N N N .1 .1 N .2 N N N N N N N N N N N N N N N N N N H N N N N N N N N .1
.8 .1 N .2 .4 .6 .2 N N
AA-BI-P
N N K N K N N N N 1 N N N N N N N N K N N K N N N F N N N N N N N
AA-SB-P
AA-AU-T
AA-TE-I
N N N10 K N N N N N S N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
.00
1<
.00
1.0
60
.01
1.0
07
.01
1.0
07
.006
.006
.160
.00
8.0
05
.012
.01
2.0
05
.007
.01
0.D
1U
.00
9.0
08
.007
.003
.OO
U.0
02
.^02
.01
7.0
28
.220
.01
4.0
02
.07
0.0
03
.oou
.OD
1.0
02
.09
0.0
26
.00
3.0
03
.05
0
.00
3.0
08
.OC
7.0
02
.006
.17
. 1
06.2
63.0
52.
3 a
3.8
42.7
81
.18
1.5
65.8
8
2.3
6.U
8.5
9.6
4.U
2
.50
.78
.68
.U6
. 14
.02
.06
.05
.05
.^6
4.4
04
. 1
55.7
0.5
6.6
8
1.2
71
. 15
. 12
. 1
0.0
9
4.2
01
.28
.34
.06
2.6
0
.54
.40
1.5
5.1
8.2
3
CHEMICAL DATA FOR 163 CHANNEL SAMPLES FROM THE ROIS MALK AREA, PALAU--Continued
Sample
S-FEX
. S-KGS
S-CA*
S-TI
55
S-MH
S-\G
S-AS
S-AU
S-B
S-BA
S-PE
S-PI
S-CD
PT158
PT171
PT172
PT173
PT17M
PT175
PT176
PT178
PT180
PT181
PT1B6
PT189
PT19M
PT196
PT198
PT199
PT200
PT202
PT203
PT205
PT207
PT239
PT211
PT213
PT21U
PT217
PT219
PT220
PT221
PT223
PT225
PT227
PT230
PT231
PT233
PT235
PT236
PT238
PT239
PT2M
1 PT
2UM
PT
?145
P
T24
7 P
T249
5.0
i3.0
3.0
5.0
5.0
5.0
5.0
5.D
5.0
5.0
7.0
5.0
3.0
5.1
7.0
7.0
7.0
7.0
7.0
7.0
3.0
5.0
5.0
10.0
7.0
7.0
7.0
5.0
5.3
5.0
7.0
5. D
3.0
5.0
7.0
5.0
5.0
5.0
5.0
5.0
5.0
7.0
5.0
3.0
7.0
.10
.10
.10
.05
.02
<.02
.05
.05
.05
.05
.07
.07
.10
.10
.05
.05
.05
.07
.05
.10
.10
.15
.15
.15
.07
.07
. 10
.07
.05
.10
.10
.07
.07
.15
.07
.03
.03
.02
.07
. 10
.07
.07
.05
. 10
.07
N N N N N N N<.05
<.05
<.05
N K<.05
<.05
<.05
N N N N<.05
<.05
N<. 05
<.05
<.05
<.05
<.05
N N N N<.05
N<.05
V
<.05
<.05
N<.05
N
<.05
<.05
<.05
<.05
<.05
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.30
.50
.30
.30
.30
.50
.50
.50
.50
.30
.30
.50
.50
.50
.50
.70
.50
.30
.3C
.50
.30
.50
.50
.50
.50
.50
.30
.50
.30
.30
.30
300
150 70
1,000
700
700
3,000
700
1,000
1,500
500
700
700
300
70S
1,000
1,000
5CO
1 ,000
153
100
500
2,000
500
3,000
500
700
5TD
500
500
300
300
300
300
700
1 ,000
2,000
700
1,000
700
2,000
3,000
1,500
3,000
2,000
N N N N N N N N K N N N N N N N N K N N N N N N N N N N N N N N N<. 5 N N N
< .5 N N N N .5
1.0
1.0
N' N N N N N N' N N N N N N N N N N N N K N N N N N K N K' N N N K K N N N N N N N N N N N N
N N N N N K N N N N N K N N N N N N N N N N |4 N N N «J N K N N N N N N N N N N Nf N N N N N
15 10<10 K' N N
<10 10 10N K N
15 1CN K N N10 20 20 30 5020 N K15N N
10 10 20
<1C 30
<10
<10 N N M10
<10
<1 0 10 20 10
N N N
<20 N N
<20 N N
<20 N N
<20
<20
<20 K N N N
<20 N20 20703A N N N N N N N K70 N N N N N N N N N
2C<20
N N N N N N N N N N N N N N N U N N N N N N N N N N N N N N N N N N N N N N N N K K N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N K N' !
N
! '
N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N K' N N N N N N N N N N
CHEMICAL DATA FO
R 1*3
CHANNEL SAMPLES FROM THE ROIS MALK AREA, PALAU--Continued
en
Sanple
PT168
PT171
PT172
PT173
PT174
PT175
PT176
PT178
PT180
PT191
PT185
PI 186
PT1R9
PT194
PT196
PT198
PT199
PT200
PT232
PT203
PT235
PT237
PT209
PT211
PT213
PT21U
PT217
PT219
PT220
PT221
PT223
PT225
PT227
PT230
PT231
PT233
PT235
PT235
PT23P
PT239
PT2U1
PT2U4
PT2U5
PT247
PT2U9
S-CO
S-CR
S-CO
S-LA
S-MO
S-NB
S-NI
S-PB
S-SB
s-s:
S-SN
<5N N
100 70 70
20? 70 7ri
Ti 15 IT 15 10 10 7070 15 70 N N2073 50
300 21 70 13N 7 N fJ 7 t; 15 15 73 70 7D 5? 73 150 7^ 100
150
700
150
150
700
1,000
700
1,000
700
700
700
1,000
700
500
700
500
1,500
700
500
700
700
200
150
700
700
1,000
700
700
700
500
£00
500
500
150
700
1,000
700
1,000
2,000
1,000
500
500
700
700
700
1,500
300
100 70
150
150
100
30C
150
300
300
200
200
300
700
200
150
200
150
150
200
150
200
700
500
500
150
200
300
150
150
150
200
150
300
200
300
700
500
200
150
300
300
300
700
1,500
N N N N N K N N N N V N N N N N N N N N N N N N N N N' N N N N N N V N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N' N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
30 3030
150
200
150
200
100
150
200
150
100
100
130
150
150
2TO
100
150
150
100
150
200
100
150
150
150
130 70
100
100
150 70 100
150
150
150
200
200
150
150
200
150
200
200
20 10< 10
< 10 15 10 50 10 30 10 15 10 20 30 30
<10
< 10
< 10 10 10
<10
<m
300 20 70 10
< 10 15 20 30 15 15 50
100
<10
<10 10 15 10
<10 10
< 10 30 70
150
N V N N N N N N N N N N N N N N N H N N N N N M N N N N N N N N N N N N N N N N N N N N N
53 30 33 73 70 73 73 73 73 73 70 73 53 70 70 73 73 70 73 73 50 73 7D 70 73 73 70 53 53 73 73 53 33 50 73 70 70 73 70 70 73
103 70 73 70
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N K N N N N N
S-SR N K N N N N N N N N
S-V
300
200
200
300
300
300
200
200
300
3CD
300
300
300
300
300
N 300
N 200
N 3?G
N 300
N 300
300
300
500
700
300
300
300
300
200
3CO
300,
3CO
300
500'
300
300
300
300
300
300
N 33
N 300
K 300
N 300
N 700
CHEMICAL DATA FOR 163
CHANNEL SAMPLES FROM THE ROIS MALK AREA, PALAU--Continued
CO
CT.
Sample
PT158
PT171
PT172
PT173
PT17U
PT175
PT176
PT178
PT1RO
PT1R1
PT185
PT186
PT189
PT19U
PT196
PT198
PT199
PT200
PT2?2
PT203
PT20E
PT237
PT209
PT21 1
PT213
PT21U
PT217
PT219
PT220
PT221
PT223
PT225
PT227
PT230
PT231
PT233
PT235
PT235
PT238
PT239
PT2U1
PT2UU
PT245
PT2U7
PT249
S-Y
S-ZN
T-TH
AA-AS-P
AA-ZN-P
N N N N N N N N N N N N N N N N N N N N N N N N N N U N N N N N N S N N N N N N N N N N N
<10
<10
<10
<10 N
<1D N N
<10
<10 N N
<10 N N N N N N
<10
<10 15
<10
<10 N N N
<10 N
<10 N N' N N N N N
<10 N N
<10 N N
<10 N
<200 N N
<200
<200
<200
<200 N
300
<200
<200
<200
<200
300
500
<200
<200
<200
200
<200
200
<200
300
300
<200
<200
<200
<200 K
300
200
<200
500
500
2:0
<200
200
700
<200
<200
<200
<200
<200
<200
700
30 30 50 30 30 20 30 20 30 20 30 20 30 20 20 30 30 20 30 30 30 30 30 30 50 30 30 30 30 30 30 3C 30 30 20 30 30 3f-
30 3 0
30 30 30 20 20
N N N N tj N N N N N N N N N N N N N H N M N N N N N N N N' N N N N N' N N K N N N N N N N N
N N N N N N N N N N K N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N
80 25 15
110
170
120 60
852UO
200
1UO 75
90300
230
110
1 10
120
2UO 40 60
150
270
350 50 90
120 90
U50
150 75 60
100
220
100
130
3PO 80
100 25
170 UO
170
90
uoo
AA-CD-P
N N N .1 N N N .8
.5 .1
.1
N .5 .a
.14 .2 .5 N N .2 .14
.(4
1.1 .1
.2
.1
.1
. 1
N .1 N N N .3
1.3 .2
.1
.3 N N .U
N .U
AA-BI-P
N N H N N K N N N N N N N N N H N N N
AA-SR-P
AA-HU-T
AA-TF-I
N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N H N
.015
.001
.00
5.0
02
<.0
01
.001
<.0
01
.002
.00
2.C
10
.0014
.00
8.0
10
.07
0.0
03
.003
.00
3.O
OU
.005
.005
.00
6.0
05
.036
.03
1*
.050
.01
2.0
10
.00
3.0
05
.003
.003
.008
.00
9.0
3U
.008'
.00
5.0
21
.01
2.0
05
.006
.006
.002
.00
6.0
11
.30
0
1.3
1.
12
.08
.02
'.0
2
<.0
2<
.02
.22
.U8
1.U
3
. 1
0.0
6.5
51.7
5.2
5
. 14
.26
»?
2.3
4.
14
. 10
.26
1.7
53
.82
2.8
0
.44
.30
.52
.03
.20
.47
.72
. 1
51
.62
.44
. 1
41.7
3.'1
6
.20
.03
.43
<.0
2.<
14i
.84
4.2
4
CHEMICAL DATA FOP 16
? CHANNEL SAMPLES PROM THF POTS KALK ARKA, PALAl!--rontinued
Sample
S-FE%
S-KG%
S-CA%
S-TT%
S-KN
S-AG
S-AS
S-AU
S-B
S-BA
S-BE
S-BI
3-CD
l'T251
PT252
PT255
PT256
PT251
PT262
PT253
PT26U
PT?55
PT266
PT257
PT258
PT260
PT27
"'
PT273
PT27U
PT776
PT282
. PT283
L\*
PT28U
PT285
PT2R6
PT287
PT288
PT292
PT308
PT31 0
PT312
7.0
5.0
10.0
5.0
3.0
5.0
5.0
5.0
5.0
3.0
3.0
3.0
5.0
3.C
5.0
5.0
3.0
3.0
7.0
5.0
3.0
3.0
7.0
3.0
3.0
5.0
5.1
3.0
.07
.05
.05
.05
.07
.05
.07
.07
.07
.15
.15
. 15
.15
. 1*
.15
. 15
.15
.10
.15
.15
.20
.15
.20
.20
.30
.15
.20
.15
N<.05
<.05
<.05
<.05
<.05
H<.05
<.05
<.05
<.05
N<.05
<.05
<.05
<.05
<.05
<.05
<.05
N
<.05
N<.05
N<.05
<.05
N<.05
. 50
.30
.50
.50
.50
.50
.50
.50
.70
.30
<3r,
.50
.50
.3C
.50
.50
.30
.30
.30
.30
.5C
.30
.50
.50
.50
.30
.50
.30
1,500
1,000
700
1 ,000
100
150
150 7n
100
500
100
150
100
150
200
150 70 7n
500
150
200
150
700
150
200
3,000
150
150
N N H N' N N N N N .5 N N N N N N N N N N N N N K N H N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N
N N N N N N N N N N' N N N N N N N N N N N N N N N N V N
<1 0 N N N N
<10
<10
< 1 0
10 15 15 15 15 15 20 20 30 15 20 15 10 10 15<10 15 10 15 50
<20 N N
<20 H N N N N20
N N N N N N50
<20 N N N N50N N s
100
<20
H N N K N N N N N N N N N N N N N N N N N N N N N N N N
H N N N N K N N N N N N N N N N N N N N K N N N N N N N
N N N N N ]i N N N N N H N N N N K N N N N N N N N N N N
CHEMICAL DATA FOR 163
CHANNEL SAMPLES FROM THE ROIS WALK AREA, PALAU--Continued
COj
cd
Sample
PT251
PT252
PT255
PI 25 6
PT251
PT262
PT263
PT25U
PT265
PT2R6
PT257
PT268
s-cn
S-CB
s-cu
S-LP
S-MO
S-NB
S-NI
S-PR
S-SR
S-SR
s-v
PT270
PT273
PT27U
PT276
PT2P2
PT2B3
PT2BH
PT285
PT286
PT287
PT2R8
PT292
PT308
PT310
PT312
100
,100 7^ 7.") S S 10N
<551 S 7 5<5<5
<5 N »J 5 N K<5 15 <5 10 100 N N
1,000
500
1,000
700
500
500
700
TOO
700
500
300
200
200
200
300
300
200
200
1,000
700
150
500
500
200
1,000
700
200
500
300
150
300
100
300
300
200
150
300
500
200
200
200
150
150
300
150
200
300
150
150
150
200
100
500
700
200
150
N N N N N V N N H N N N N N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N
200
150
200
200
200
200
2^)0
150
200
150
10070 70 30 30 70 30 5070 30 20 30 30 20 150
200 70
100
30 20< 10
<10
<10 10
< 10 10 10 15 10 15 15 30 30 50
150 70
150 30
<10
< 10 30N
150 10
< 10 15
N N N N N N N N N N N N N N N N N N N N N N N N N N N N
70 73 73 7D 50 70 5D 50 70 50 50 30 3D 50 5!)
5D 30 30 50 5D 33 30 30 3D 30 5D 5D 30
N N N K N N N N N H N N s N N N N N N N N N N N H N N N
N N N N N N N N N N N N N N N N N N N N N N N N N N N N
300
203
3 CO
20^
200
3CO
303
3CO
303
303
303
303
500
500
300
300
330
503
500
303
300
150
300
3,03
200
300
300
300
CHEMICAL DATA EC" 16
3 CHANNEL SAMPLES FRO
1* THE ROIS «?LK ARCA ,
PALAU--Continued
S-Y
S-Z
NS
-ZR
S-T
HA
ft-A
S-P
AA
-ZN
-P
PT251
PT252
PT255
PT256
PT261
PT752
PT263
PT26U
PT265
PT26*
PT257
PT268
PT269
PT270
PT273
PT274
PT276
PT292
PT293
PT28
14
PT285
PT286
PT287
PT288
PT292
PT308
PT310
PT312
N N N N N N N N N N N N N N N N N N N * N N K N N N N N
N N fj N<10
<10 N N N N N N N
<10
<10
<10
<1 0 N
<10 N N K N
<10 20
N<10 N
K<200
500
<200 N N N N N N N N
<20D
<200
<200
<200 N
<200
<200 N N N N N
<200
<200
500
<200
30 2G 30 30 30 3D 3r 3" 30 3n 30 30 30 30 30 30 30 3C 3^ 30 30 30 30 30 30 20 30 30
N N N N N N N N K K N N N K N N N N K N K N N N N N N N
N N K N N N N N N N N N N N N N10N N N N
.N N N N
<10 N20
240
120 95
200 20 20 30 1C 10 20
565 10 10 10 35 25 20 25 10 105
155
145
100
200 75
AA
-CD
-P
.1
N N .2 N N K N N N N N N N N N N .1 N .1 .1 N .1
AA
-BI-
P
N N
AA
-SB
-P
N N N N N N N N N N N N N N N N N N N N N N N N N
AA
-AU
-T
.005
.003
.OO
U
.C03
; .0
06
'
.005
.001
4.0
014
.002
.00
6
.00
2.0
01
.00
1.0
05
.00
3
.01
7
.170
.012
.006
,noi
4.0
02
.00
3.0
02
.03
5
.019
.019
.00
7
AA
-fE
-T
. 17
.58
<.0
2.0
7
.03
.0
5
.07
.08
.65
.06
.C
7
. 10
.2
0
.30
.57
1.1
71.5
*4.5
8.
12
.06
.0
14
.09
<.0
2
.06
.71
1.2
81
.37
TA
BL
E
4.
CH
EMIC
AL
DA
T*
FOP
AN
E-W
SO
IL
TRA
VER
SE
BC
RO
SS
THE
RO
IS
fALK
A
RE
A,
PALA
U[N
, not
dete
cte
d;
<,
dete
cte
d
but
bel
ow
th
e
lim
it
of
dete
rmin
ati
on
sho
wn
; >
, d
ete
rmin
ed
to
be
g
reate
r th
an
th
e
valu
e
show
n.]
Sa-
np
le
UTM
-N
UT
M-E
S
-FE
*
S-M
G%
S
-Cft
tf
S-T
IR
S-H
N
S-f
tG
S-A
S
S-f
iU
S-P
F
-Bft
K
-RF
S
-PI
ooi
PM
16
3P
K164
P M
1 6
5P
M156
PM
57
PM
*8P
M59
PK
170
Pf
17
1P
M72
Pf
17
3P
M74
PK
175
PK
17fi
Pf
177
PM
178
PP
.179
Pf 180
Pf
181
PM
82
P14
81
48
14
814
81
4
81
46
14
814
814
81
4
81
4814
81
48
14
81
4
81
4814
81
48
14
81
4
,518.1
3,5
17.4
4,5
24.8
8,5
37
.81
,547.0
0
,55
9.8
1,5
52.4
4,5
73.6
3,5
69.7
5,5
79.6
9
,57
4.1
9,6
39
.25
,670.6
3,7
72.5
0,7
76
.3R
,792.6
3,6
08.3
8,7
98
.38
,806.6
9,6
52.0
6
45
4,4
80
.31
454,4
48.6
3454,4
17.6
3454,3
93.5
0454,3
65.4
4
45
4,3
29
.81
45
4,2
88
. 19
45
4,2
43
.31
454,2
06.0
6454,1
66.8
8
454,1
35.8
1454,1
50.5
0454,1
01 .
31
454,0
94.3
8454,0
13.5
6
453,9
87.7
54
53
,94
2.3
1453,9
12.5
6453,8
78.8
8453,8
03.5
0
5 5 5 5 a 5 e. 3 7 c c 5 10 5 3 5 7 3 7 5
. 15
.10
.15
.07
.07
.07
.07
.05
.10
.20
. 15
.07
.02
. 10
.07
.10
.05
.05
.07
.03
<.0
5<
.05
<.0
5<
.05
<.0
5
N<
.OS
<.0
5<
.05
N N<
.05
<.0
5N N N N N N N
.3 .3 . 3
.5 .3 .5 .3 .5 .3 .5 .5 .5 .5 .5 .5 .3 .5 .3 .5 .5
70
0500
1,5
00
1,5
00
150
200
1,5
00
1,0
00
70
01,0
00
1,0
00
200
2,0
00
200
15
0
1,5
00
10
01
50
1,0
00
200
N K N N Nf N N N N N N N K N N N K K N N
N V N N N N N N N N N N K N N N N N N N
N N N N N N N N N N N N N N N N N N N N
N N K N N N N N N K K N N N N
30 N N N N
N K N N N N<
2D N N
<2
0 N N<
20 N N
30 N N
<20 N
K N N N N K N N N K N N N N N N K N N N
,N N N N N N N N N N N N N N N N N N K N
CHEMICAL DATA FOR AN F-H SOIL TRAVERSF ACROSS THE ROIS MALK AREA, PALAU--ContInued
Sample
S-CD
S-CO
S-CR
S-CU
S-LA
S-MO
S-NB
S-NI
S-PB
S-SB
3-SC
S-SN
S-SR
5-V
PK163
N ,
70
700
50
N N
N 100
<10
N 50
h N
200
PM16U
N 50
700
50
N N
N 100
10
N 50
N N
200
PM165
N 100
500
3*
<20
N N
100
<10
V 50
N N
200
PH166
N 7H
300
70
N N
N 150
<10
N .
50
N N
300
PM167
V 5
150
150
N N
N 100
N N
50
N N
30D
PK1fi8
N 10
700
70
N N
N 150
N N
50
N N
300
PK169
N 100
1,000
150
N N
N 150
15
N 70
N N
300
PM170
N 20
500
7T
N N
N 100
<10
N 50
N N
300
PM171
N 30
1,000
151
N N
N 150
10
N 50
N N
300
PK172
N 70
700
200
N N
N 150
N N
50
N N
150
K N N N ¥ N N K N N N N N N N N N N N N
7050
1007H 5
1010020
30 70
70
15
150 5 N N<5 5
100 10
700
700
500
300
150
700
1,000
500
1,000
700
500
700
700
300
150
150
200
700
700
300
50 50
3°
70
150 70
150
7T15
1200
iro5C
20C
100 70
300 70
100
100
70
N N<20 N N N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N N N N N N
100
100
100
150
100
150
150
100
150
150
150
150
300
10050 50
3070
150
100
<10 10
<10
<10 N N15
<10 10 N
<10 N N
<10 *
30 N 10N N
N N V N .
N N N N N N N N N N N N N N N N
50 50
50
50
50 50
705050
50 5050
70
3030 30
30 30
50 30
N N N N N N N N N " N N N N N N N K N N
PM173
N 70
500
1fO
N N
N 150
<10
N 50
N N
300
PK17U
N 15
700
5C
N K
N 150
N N
50
N N
300
PH175
N 150
700
20C
N N
N 300
N N
70
N N
303
PM176
N 5
300
100
N N
N 100
<10
N 30
N N
200
PM177
N N
150
70
N N
N 50
R N
30
N N
150
PK178
N N
150
300
N N
N 50
30
N 30
N N
500
PH179
N <5
200
70
N N
N 30
N N
30
N N
200
PM180
N 5
700
100
N N
N 70
10
N 30
K N
200
PM181
N 100
700
100
N N
N 150
N N
50
N N
300
CO
' PH182
K 10
300
70
N N
N 100
N N
30
N N
200
CHEMICAL DATA FOR AN
E-W SOIL TRAVERSE ACROSS THE ROIS WALK AREA, PALAU--Continued
Sanple
S-W
S-Y
S-ZN
S-ZR
S-TH
AA-f
tS-P
AA-ZN-P
AA-CD-P
AA-BI-P
AA-SB-P
AA-AU-T
AA-TE-T
PM
63
N
15
N 30
N
N HO
.1
N
H .0
02
.2
9PM
16U
N
15
N 3C
N
N 25
N
N N
.P0
3
.28
PK
165
N 50
N
3'!
N N
3D
.1
N N
.002
.77
PM16
6 N
N N
30
N N
15
.1
N H
.009
1.8
2P
M16
7 N
NN
30
NN
10
N
N N
.012
.76
PM16
8 N
<10
N
30
N N
20
N N
N .0
03
,2U
PH
169
N <
10
N 20
N
N 85
.1
N
N .0
08
.B«4
PK
170
N N
N 30
N
N 6
0
.1
N H
.015
1.5
2P
H17
1 N
H H
30
N K
40
N N
N .0
0«4
. 3U
Pf1
72
N N
N 30
N
N 20
N
N H
.00
3
.06
PM17
3 N
N N
30
N N
25
N N
N .0
03
.21
PM17
U
N K
K 30
N
N 10
N
N N
.002
.03
PH
175
N <
10
K 30
N
N 20
N N
N .0
02
.OU
PM17
6 N
NN
30N
N
5N
N
N .0
06
.03
PK
177
NN
K3
0N
N
CN
H N
<.0
01
.0
2
PK
178
UN
N
30
N <
10
85
.2
N H
.02«
4 .8
8P
H17
9 N
NN
30N
N
15
N N
N .0
07
.03
PM1P
O
N N
N 30
N
N t»
5 .2
N
N .1
10
.1
2P
M81
N N
N 30
N
N 20
N
N N
.OU
O
.02
PK
182
NN
N20N
N
15
N N
N .0
03
; .1
0I'
d
TABLE 5. CHEMICAL DA
TA FROtf
A DETAILED SOIL TRAVERSE, RO
IS WA
LK AR
EA,
PALPU
[N,
not
letected; <,
detected but
below th
e limit of
determination sh
own;
>,
determined to
be
greater than the
value shavn.]
Samplo
UTM-N
UTM-E
S-FE%
S-KC%
S-CA7.
S-TIf.
S-MK
S-AG
S-AS
S-AU
S-B
S-6A
S-BE
S-BI
PM183
814,930
U53,729
20
.07
<.D5
.20
3,000
N N
N S
100
K N
PH19U
81H,027
1453,728
3 .05
<.05
.30
100
N K
N <10
N N
NPM185
81U,923
4»53,727
3 .07
<.05
.50
100
N K
N <10
N K
NPH186
81U,92D
1453,726
7 ."5
<.05
.50
23
!« N
N 10
N
K N
PK1B7
8114
,916
4»
53,7
2U
5 .05
N .50
20
N N
K 10
N
N N
PM188
814,913
U53,723
7 .05
<.05
.50
70
N K
N <10
N N
N
PM189
R1U,910
U53,722
5 .05
<.05
.50
30
H N
K <10
N K
NPM190
8144,905
U53,720
5 .05
<.05
.50
70
N N
N <10
N K
NN
N N
H N
h PM192
81(4
,912
U53,736
5 .10
<.05
.30
150
K K
K <10
N K
N ;
8114,9
30
81
l|,Q
27
81
44
,92
38114,9
20
H1U
,916
8114,9
13
8114,9
10
814»
,9
05
81U
,9D
98
1U
,912
81U
,013
R1
U,9
15
81U
,918
8 1
U ,
9 1
9R
1 U
, P
2 1
81
(4, 9?2
81U
, 92
(48
11
4,9
26
4453,7
29
14
53
,72
84
45
3,7
27
14
53
,72
64453,7
214
4453,7
23
U5
3,7
22
(453,7
20
44
53
,7(4
1
4453,7
36
(453,7
32
(453,7
28
U5
3,7
20
14
53
,71
6(4
53
,71
2
1453,7
08
1453,7
05
44
53
,70
0
20 3 3 7 5 7 5 5 3 5 5 5
15 7 5
20
10 7
.07
.05
.07
."5
.05
.05
.05
.05
.02
.10
.02
.07
.05
.^5
.05
.03
.03
.03
<.D
5<
.05
<.0
5<
.05
N
<.0
5<
.05
<.0
5<
.05
<.0
5
<.0
5N N N N N N N
.20
.30
.50
.50
.50
.50
.50
.50
.50
.30
.50
.50
.30
.30
.30
.15
.15
,2H
3,0
00
100
10
02
320
70
30
70
1,5
00
150
10
0200
30
70
100
150
20
01
50
N N N N N N N N N K N N K K K K N K
PM193
H1U,Q13
(453,732
5 .0
2 <.05
.50
100
N K
K N
N N
NN
N K
N N
NPM195
81U,918
U53,720
15
.05
N .30
30
K N
K <10
NPK196
81U,919
1453
,716
7
.^5
N .30
70
K N
K <10
»( N
NP«197
8114,P21
(453,712
5 .05
N .30
100
K N
N 10
N
N N
PM198
81(4,9?2
1453
,708
20
.03
N .15
150
K N
N »
N H
NPM199
81U,
92(4
(4
53,7
05
10
,C3
N .15
200
N N
N N
H N
KPK200
81U,926
4453,700
7 .03
N .2^
150
N N
N N
N N
N
CP CO
CHEMICAL DATA FROM
A DFTPILED SOIL TRAVERSE, ROIS tf
ALK
AREA, PALAU--Continu&d
Sample
S-CD
S-CO
S-CR
S-CU
S-LA
S-MO
S-NB
S-NI
S-PB
S-SB
S-SC
S-SN
S-SR
S-V
PM1B3
N ,
100
500
150
N N
N 150
20
N 50
N N
150
PM18U
N N
200
70
N N
V 50
N N
50
N N
200
PH185
N <5
200
1CO
N N
N 50
<10
N 30
N N
200
PM186
N N
300
30
N N
N 70
K N
30
N N
300
PM187
N H
300
70
N 7
M 50
N N
30
N N
200
PM188
N N
700
70
hi N
N 50
<10
N 30
N N
300
PK199
N N
700
50
N N
N 50
<10
N 30
N N
300
PM190
N N
1,000
70
N N
N 50
<10
N 30
N N
300
PH191
N 150
100
150
N N
N 50
N fl
30
N N
300
PH192
N <5
500
100
N N
N 30
N N
30
N N
300
N N K N N N N N N N N N N N N N N N
100 N
<5 N H N N N
150
<5 N 7 N 51C 10 15 10
500
200
200
300
300
700
700
1,000
100
500
300
500
700
2,000
300
2,OOC
1,000
700
150
70
1CO 3070
70 50 70
150
100
100
100
100 70
50
10070
100
N N N N N hi N N N N V N N N N N N' K
N N N N 7 N N N N N N N<5 <5 10 20 7<5
N V N N K N N N N N N N N N N N K N
150 50
507050
50 505050
30
70
5050 50 30 30 30
30
20 N
<10 K N
<10
<10
<10 N N
<10 N15
<10 N
15N
<10
N N N N N N N N fl N N N N N N N N N
5050
303030 30
303030
30 30
30303020
3020
20
N N N N N N N N N N N N N N N N N N
PK193
N N
300
100
V N
N 70
<10
N 30
N N
200
N 300
PK195
N N
700
100
N <5
N 50
15
N 30
N N
300
N 300
PM197
N 1C
300
50
N 10
N 30
N N
20
N N
300
PH198
N 10
2,OOC
100
N 20
N 30
15
N 30
N N
500
PM199
N 15
1,000
70
N' 7
M 30
N N
20
M N
500
PK200
N 10
700
100
K <5
N 30
<10
N 20
N K
500
CHEMICAL DATA FROM A
DETAILED SOIL TRAVERSE, ROIS WALK AREA, PALAU--Continuad
Sample
PK183
PK18U
PM185
PM186
PM1R7
PW188
PW189
PK190
PM191
P A
1 9 2
PI'193
PK19U
PM95
PM96
PH197
PM98
PH199
PM200
w N N N N N N N N N N N N if N N N N N
s-y 70
<1 0 N N N N N
00
<10 N
on
< 10N N N
<10 N K
S-ZN
1,000 N N N N N N N N N N K N N N
<200
<200
<200
S-ZR
15 30 30 30 30 30 3H 30 30
20 30 30 30 30 30 15 20 20
S-TH N N N N N N N N K N N N N K N K N N
A A -AS' K K N K N
10 10 10N N N N N K
10 20 10 10
AA-ZN-P
3SO
60
20 155
10 20 15 25 2000 N
10 102UO
AA-CD-P
.1 N N N N N N N N N N N N N N N N N
AA-BI-P
N N N
AA-SB-P
N N K N N N N N K K N N N N K K N K
AA-AU-T
.003
.OOU
.016
.008
.027
.01H
.012
.015
.012
.OOU
.012
.007
.070
.018
.090
.018
.050
.018
AA-TE-T
.18
.00
.30
.31
.31
.77
.62
.62
.05
.13
.12
.20
.60
1.00
.72
.95
.7U
.7U
TABLE 6. CHEMICAL DA
TA FO
R 16
STREAM -SEDIMENT SAMPLES, BO
IS MALK AR
EA,
PALAU
IK,
not
detected; <,
detected bu
t below the
limit of determination sh
own;
>,
determined to be
oreater than the
value shown.]
Sample
PA11
4 PA
115
PA117
PA118
PA11
9
PA120
PA121
PA122
PA123
PA124
PA125
PK151
PM162
PM231
PH202
UTM
-NU
TM
-ES
-FE
%S-
P!G
%S
-CA
2S
-TI%
S-M
NS
-AG
S-A
SS
-AU
S-B
S-B
A
S-B
E
S-B
I
824,850
824,820
824,875
815,991
815,984
815,986
816,000
816,116
816,139
815,698
815,703
814,725
814,978
814,887
R14,884
455,725
455,737
455,787
453,186
453,199
453,150
453,150
452,968
452,944
453,364
453,375
453,674
453,609
454,554
454,573
5 3 3 3 5 3 3 3 3 3 3 2 3 3 5
2.00
1.00
1 .00
1.00
1.00
1.00
1 .00
1.00
2.00
.70
1.50
.07
1.00
1.00
1.00
2.00
.30
.20
1.00
.30
.30
.70
.70
2.00
.30
1.50
.05
.70
1.00
1.50
.5 .3 .5 .3 .3 .1 .3 .3 .3 .3 .3 .2 .3 .2 .3
1,000
500
500
500
500
500
200
300
500
500
500 70
500
700
700
N K N N N N N N K N N K H N N
K N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N
10 10 10K
20 10N N N
10
N K10 20
20
<20
<20
<20
<20
<20
<20
<20 N20
<20 20 N20
<20 K
N N N N N N N N N N N N N N N
N N N N N N N N N N N N N N N
PM206
815,357
454,181
1.50
.70
.3700
10<20
CHEMICAL DATA FOR
16 STREAM-SEDIMENT SAMPLES, ROIS MALK AREA, PALAU--Continued
Sample
S-CD
. S-CO
S-CR
S-CU
S-LA
S-MO
S-NB
S-NI
S-PB
S-SB
S-SC
S-SN
S-SR
S-V
i
PA11M
PA115
PA117
PM18
PA119
PA120
PA121
PA122
PM23
PA124
N N N N N N N N N N N N N N N
i 70 20 50 50 70 50 70 50 50 50 70 <5 50 50 70
700
200
200
5,000
700
1,000
1,000
5,000
5,000
700
5,000
500
1,000
1,000
1,500
100 70 70 30 50 30 50 50 3f>
70 50 30 100
70 100
N<20 N N N N N N N N N
<20 N N N
N N N N N H N N N N N<5 N N N
N N N N N N s N H N N ff N N N
100 70
100
100
150
150
100
150
150
150
150 50
100
150
150
15 10< 10
<10
<10
<10 N N
<10 N H20 20 30 20
N N N N H N N N N N N H N N N
30 30 30 30 30 30
30 30 30 30 30 20 30 30 30
N N N H N N N K N N N N N N N
N N N N N N N N N N N N200 N
<100
200
15D
200
200
200
200
303
300
200
300
200
200
200
200
300
PM206
N 70
>5,000
70
N N
N 200
15
H 30
N
N 200
CHEHICAL DATA FOR
16 STREAM SEDIMENT SAMPLES, HOIS HALK AREA,
PALAU--Continued
Sample
PA11U
PA115
PA11
7 PA
118
PA11
9
PA12
0 PA121
PA12
2 PA
123
PR12
U
PA12S
PH15
1 PM162
PM20
1 PM202
PM206
S-H
S-Y
S-ZN
S-ZR
S-TH
AA-ftS-P
N N N N N N N N N N N N N N N
V 15
<1C 10 10 15 10 10 15 10 15 10
<10 10 15 15
N N N<200
<200 N N
<200N N N N
500
200
<200
30 20 30 20 30 20 30 20 20 20 20 20 30 20 30
N N N N N N N N N N N N N N N
N N N N N N N N N N N10N
--N
10<200
20
AA-ZN-P
65 55 50 70 85 80 ao 70 75 75 8510
0640
130
120
AA-CD-P
M N N N N N N N N N
5.0
AA-BI-P
N N N N N N N N
AA-SB-P
N<2
<2
<2N N
<2N N N N
<2H
AA-AU-I
,003 130
AA-TE-T
.30
00«t
002
005
013
003
P02
001
002
002
060
029
060
037
.58
.03
.3«4
.0*4
.0*4
.03
.02
.02
.03
.50
.16
1.00 .146
. 13
TABLE 7. CHEMICAL DMA FOB
13 HEAVY-HINERAL CONCENTRATES, FOIS MALK AREA,
PALAU
[N,
not
detected; <, detected but
below the
limit of
determination sh
own;
>,
determined to
be
greater thao the
value shown.]
Sample
UTM-N
UTM-E
S-FEK
S-MG7,
S-CA7,
S-Tir.
S-MN
S-AG
S-AS
S-AU
S-B
S-BA
S-BE
S-BI
S-CD
S-CO
S-CB
PA118
PA119
PA120
PA121
PA122
PA123
PA124
PA125
PM161
PM162
PH201
PK2D2
PH206
8 15
,991
815,984
815,986
816,000
8 16, 116
8 16,139
815,698
815,703
81U,725
814,978
814,867
814,884
8 15,357
i 453,186
453,199
453,150
U53,150
452,968
452,944
453,364
453,375
453,674
453,609
454,554
454,570
454,181
5 3 3 3 5 5 3 5 5 7 7 3 7
3.0
5.0
3.0
5.0
5.0
7.0
5.0
5.0
1.0
3.0
2.0
2.0
1.5
7 7 5 10 10 10 107 2 5 5 7 5
.15
.15
.15
.15
.15
.15
.15
.30
>2.00
.30
.30
.70
.15
700
700
500
700
700
700
700
700
300
500
500
500
500
N N N N N N N N50.0
3.0
500.0 N
1.5
N N N N N N N N N N N N N
N N N N N N N N200 N
700 N N
N (f N N N N N N N<20 N N
<20
N N N N N N N N<50 N N N N
N N N N N N N N N N N N N
N N N N N N N N N N N N N
N N N N N N N N N20
0
100 N50
50 20 15 20 50
50
! 20
50 N
150
50
<10
100
>10,000
10,000
10,000
10,000
>10,000
10,000
7,000
>10,000
7,000
3,000
1,500
7,000
10,000
CHEKICAL DATA FOR 13 HFAYY-HINERAL CONCENTRATES, ROIS WALK AREA, PALAU--Continued
Sample
S-CU
S-LA
S-MO
S-NB
S-NI
S-PB
S-SB
S-SC
S-SN
S-SP
S-V
S-W
S-Y
S-ZN
S-ZR
S-TH
PA118
30
, K
N N
150
N N
70
N N
300
N N
N N
HPA119
5C
N N
N 15
0 N
H 70
N H
200
N N
700
N H
PA120
30
N N
N 15
0 H
N 70
N N
200
N N
» N
HPA121
50
N N
N 10
0 N
N 70
N N
2PO
N N
H N
HPA122
300
N N
N 15
0 N
N 70
N
N 200
N N
N <20
N
PA123
PA12U
PA125
PH161
PH162
PM201
PM2D2
PK206
^OO 20 100
100
7,000
700 3"
0,000
N N N N N N N N
N N N15N N N N
N N N N N N N N
150
100
200 70
200
100
70
200
N K N20
100 70
<2D 20
N K N N N N N N
70 70 70 50 50 50 70 20
N N N N N N N N
K N N N N N N N
200
200
300
700
150
150
200
150
N N N K N N N N
N N N N N N N N
N N N N15,000
15,000 K
5,000
20 N N
200
20
<20 50 N
N N N N N N N N
.&