UNITED THE ANAEYSESpubs.dggsalaskagov.us/webpubs/usgs/of/text/of70-0370.pdfUNITED STATES DEPARTMENT...
45
UNITED STATES DEPARTMENT OF THE INTF,RIOR GEOLOGICAL SURVEY ANAEYSES OF STREAM-SEDIMENT SAMPLES FROM THE BY G. B, Winkler and E. M. MacKevett, Jr. Open-file report 1970 REC'Q. C0LLEGZ JUL 2 8 1970 CIV. MlhlEf & GEOLQW This report is preliminary and has not been edited or reviewed for conformity with Geological Survey standards
Transcript of UNITED THE ANAEYSESpubs.dggsalaskagov.us/webpubs/usgs/of/text/of70-0370.pdfUNITED STATES DEPARTMENT...
UNITED STATES DEPARTMENT OF THE INTF,RIOR
GEOLOGICAL SURVEY
ANAEYSES OF STREAM-SEDIMENT SAMPLES FROM THE
BY
G. B, Winkler and E. M. MacKevett, Jr.
Open-file report
1970
REC'Q. C0LLEGZ
JUL 2 8 1970
CIV. MlhlEf & GEOLQW
This report is preliminary and has not been edited or reviewed for conformity with Geological Survey standards
Analyses of stream-sediment samples from the Mc~arthy C-8 quadrangle,
southern Wrangell Mountains, Alaska
By G. R. Winkler and E. M. MacKevett, Jr.
General summary
This report gives analyses of 153 stream-sediment samples from the
McCarthy C-8 quadrangle, Alaska, that were analyzed for 30 elements by
semiquantitative spectrographic methods and for gold by atomic absorption.
The report also includes statistical summaries of the analytical data.
Locations of the samples are plotted on the accompanying map (fig. 1).
The samples were collected during 1969 as part of the U.S. Geological
Survey Heavy Metals Program concomitantly with geologic mapping and
related investigations in the quadrangle.
Geologic knowledge of the quadrangle is based largely on the
investigations of Moffit and Mertie (1923) and Moffit (1938). Recent
studies mainly by MacKevett and his coworkers (MacKevett, l970a,b, in press;
Armstrong, MacKevett, and Silberling, 1970) largely in nearby parts of the
southern Wrangell Mountains, and by Grantz, Jones, and Lanphere (1966)
provide considerable additional information pertinent to the geology of
the C-8 quadrangle.
The diverse bedrock in the quadrangle ranges in age from Late Paleozoic
to Cenozoic. It includes a generally metamorphosed Late Paleozoic sequence
of submarine volcanic rocks and their associated overlying marine sedimentary
rocks that are partly of volcanriclastic derivation; Meso~oic subaerial lavas
and overlying shelf deposits that include some carbonate rocks near their
base but mainly consist of diverse noncarbonate clastic rocks; and
intrusive rocks that reflect both Mesozoic and Tertiary plutonism. Diverse
surficial deposits that are mainly related to glacial and periglacial
' processes are widespread i n the quadrangle. rt
The quadrangle conta ins numerous mines and prospec ts , c h i e f l y f o r
copper, bu t i t has y ie lded only minor production. The sampling d isc losed
numerous, genera l ly minor, anomalous concentrat ions of copper, and some
minor anomaloue concent ra t ions of s i l v e r , gold, molybdenum, and zinc.
Most anomalies were de tec ted i n samples from streams dra in ing a r e a s
containing known depos i t s , Locations of t h e known mines and prospects
are p l o t t e d on the accompanying genera l ized geologic map ( f ig . 1).
Procedures and t reatment of d a t a
Standard procedures were followed i n t he c o l l e c t i o n and prepara t ion
of t h e stream-sediment samples. Generally, t h e samples were co l l ec t ed
from t h e a c t i v e atream channel; o f t e n , however, high-water s t ream depos i t s
immediately ad jacent t o t h e a c t i v e channel were co l lec ted . Duplicate
samples were co l l ec t ed from most l o c a l i t i e s i n o rde r t o t e s t t h e
r e l i a b i l i t y of t h e analyses . The dup l i ca t e samples a r e ind ica ted i n
t a b l e 1 by l o c a l i t y numbers such as WK 2 9 0 1 and WK 2 9 6 2 , where -1
and -2 i n d i c a t e s epa ra t e samples. The samples were d r i ed , s ieved,
and the f i n e r then 80 mesh (Tyler) f r a c t i o n s were analyzed f o r 30
elements by t h e s ix-s tep semiquant i ta t ive spectrographic method and
f o r gold by the q u a n t i t a t i v e atomic absorp t ion method. (Analyses f o r
29 elements by t h e spec t rographic method and f o r gold by atomic
absorp t ion a r e given i n t a b l e 1. Spectrographic analyses f o r gold
have been omitted.) The semiquant i ta t ive spec t rographic analyses a r e
repor ted i n percentage (PCT.) o r p a r t s p e r m i l l i o n (PPM) t o t he nea re s t
number i n the series 1.0, 0.7, 0.5, 0.3, 0.2, 0.15, 0.1, and s o f o r t h .
The p rec i s ion of a s i n g l e reported va lue i s approximately p lus 100
percent o r minus 50 percent . Spectrographic analyses were done by
K. J. Curry; atomic absorp t ion ana lyses were done by R. L, M i l l e r ,
A, L , Meier, and H. D. King. 2
Explanation of t a b l e 1
The t a b l e has t h r e e p a r t s : (1) a l i s t i n g of the a n a l y t i c a l da ta ,
(2) cumulative frequency d i s t r i b u t i o n s and histograms f o r elements on
which t h e r e f s s u f f i c i e n t da t a , and (3) a statistical summary that inc ludes
geometric means and devia t ions .
(1) The a n a l y t i c a l d a t a is given as values, such as 10.0000 pe t . o r
7.0000 ppm, which may be q u a l i f i e d by l e t t e r s , coded as follows: N = no t
de tec ted , L = present , b u t less than s p e c i f i e d limits of de t ec t ion (given
on page 4 ) , o r G = g r e a t e r than va lue shown. Note t h a t t h e right-most
zero d i g i t s for each a n a l y t i c a l va lue may o r may no t be s i g n i f i c a n t .
(Normally they w i l l no t be s i g n i f i c a n t . ) (2) The frequency d i s t r i b u t i o n s and histograms are given on logar i thmic
scales and a r e computed us ing the repor ted va lues as geometric midpoints
of c l a s s e s with t h e following limits:
Reported va lue Limits
1.0 0.83 - 1 . 2
The s t a t i s t i c s given below t h e histograms a r e der ived only from d a t a va lues
w i th in the ranges of a n a l y t i c a l determinat ion, and are b iased i f q u a l i f i e d
d a t a va lues are present . Unbiased s t a t i s t i c a l es t imates a r e given f n the
s t a t i s t i c a l summary a t t h e end of t a b l e 1.
The frequency tables and histograms for gold have been omitted
because the classes used in calculating these tables are those used in the
semiquantitative spectrographic method and gold was analyzed by the
quantitative atomic absorption method. Statistical summaries for antimony,
arsenic, bismuth, cadmium, tin, and tun~sten have been omitted because no
values, or too few values for meaningful computations, were reported for
these elements in stream-sediment samples.
(3) In the statistical summary, an element is ignored when any data
value is qualified with the G (greater than) codes. When none of the data
values for an element are qualified, the mean and deviation should be the
same as those given below the histograms, Where data are qualified with
the codes N.or L, the estimates of geometric mean and deviation are based
on a special method for treating censored distributions.
Specified limits of detection
FE PCT. MG PCT. CA PCT. TI PCT. MN PPM AG PPM
(Iron) (Magnesium) (Calcium) (Titanium) (Manganese) (Silver)
0.0500 0.0200 0.0500 0.0020 10.0000 0.5000
AS PPM AU PPM B PPM BA PPM BE PPM BI PPM
(Arsenic) (Gold) (Boron) (Barium) (Beryllium) (Bf smuth)
200.0000 0.0200 10.0000 20.0000 1,0000 10.0000
CD PPM CO PPM CR PPM CU PPM LA PPM MO PPM
(Cadmium) (Cobalt) (Chromium) (Copper) (Lanthanum) (~olybdenum)
20.0000 5.0000 5.0000 5.0000 20.0000 5.0000
NB PPM NI PPM PB PFM SB PPM SC PPM SN PPM
(Niobium) (Nickel) (Lead) (Ant bony) (S cand lun) (Tin)
10.0000 5.0000 10.0000 100.0000 5.0000 10.0000
SR PPM V PPM W PPM Y PPM ZN POM ZR PPM
(Strontium) (vanadium) (Tungsten) (Yttrium) (Zinc) (Zf rconium)
100.0000 10.0000 50.0000 10,0000 200.0000 10.0000
Interpretation of table 1
The histogram and statistical summary for each element should be
interpreted with caution. Because of the wide variety of geologic terranes
from which these sediments were derived, it is not practicable to set
overall upper limits for background values.
References cited
Armstrong, A. K., MacKevett, E, M., Jr., and Silberling, N. J., 1970,
The Chitistone and Nizina Limestones of part of the southern Wrangell
Mountains, Alaska---A preliminary report stressing carbonate petrography
and depositional environments: U.S. Geol. Survey Prof. Paper 650-D,
p. D49-D62.
Grantz, Arthur, Jones, D. L., and Lanphere, M. A., 1966, Stratigraphy,
paleontology, and isotopic ages of Upper Mesozoic rocka in the
southwestern Wrangell Mountains, Alaska: U . S . Geol. Survey Prof.
Paper 550-C, p. C39-C47.
MacKevett, E. M., Jr., 1970a, in press, Geologic map of the McCarthy C-4
quadrangle, Alaska: U . S . Geol. Survey Quad. Map f44, - scale 1 : 63,360. , 1970b, in press, Geologic map of the McCarthy C-5 quadrangle,
Alaska: U.S. Geol. Survey Quad. Map - W7, scale 1:63,360.
Moffit, F. H., 1938, Geology of the Chitina Valley and adjacent areas,
Alaska: U.S. Geol. Survey Bull. 894, 137 p.
Moffit, I?. H., and Mertie, J. B., Jr., 1923, The Kotsina-Kuskulana district,
Alaska: U.S. Geol. Survey Bull. 745 , 149 p.
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TBBU 1.-STREAH SEDI WENT SAMPLES
SAMPLE F E PCT. HG per. CA PCT. TI PCT. HN PPI AG PPM AS PPH AU PPM B PPR BA PPI HK 8 2 ~ - 2 3 0000 3.0000 15.0000 0. 1500 300.0000 0.0 OY 0-0 M 0.0200L 30.0000 20010000 MK 85E-1 15.0000 3.0000 3.0000 0-7000 1500.0000 0.0 N 0.0 N 0-0200L 15-0000 15010000 ## 85E-2 15.0000 3.0000 5.0000 1.0000 1500.0000 0.0 W 0-0200L ~SIOOOQ 150-0000 0.0 I
TABLE l . -STREAM SEDIMENT SAMPLES I SAMPLE BE PPM 81 PPW CD PPM CO PPM CR PPU CU PPll #0 PPW N3 PPR L& PPH MI PPn
t lK 82C-2 1. OOOOL 0.0 N 0.0 W 5-0000 100~0000 30-0000 20*0000t 5.0000L AO~OOOOL 30*0000 #K 85E-1 1 .OOOOL 0.0 N 0.0 N 50.0000 150-0000 l O O ~ O O O O 0-0 # 50*0000L LO-0000 IOD~OOOO WK 8 5 5 2 1. OOOOL 0.0 N 0.0 N 70.0000 150.0000 150.0000 0-0 # 5.0000t AOIOOQO 70- W O O
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THE FREQUENCY D I S T R I B U T I O N S AND HISTOGRAMS ON THE FOLLOWING PAGES ARE ON LOGARITHMIC SCALEStAND EMPLOY THE SAME CLASS INTERVALS AS USED I N REPORTING 6-STEP SEMIQUANTITAT lVE SPECTROGRAPHIC ANALYSES. IMPORTANT NOTE- THE S T A T I S T I C S G I V E N BELOW THE HISTOGRAMS ARE DERIVED ONLY FROM DATA VALUES W I T H I N THE RANGES OF ANALYTICAL O E T E R ~ I N A T I O N I AND ARE, THEREFORE* B IASED I F DATA VALUES Q U A L I F I E D WITH NI 1 s GI T * OR H CODES ARE PRESENT. SEE LaTER SECTION O F OUTPUT FOR S T A T I S T I C A L ESTIMATES THAT ARE UNBIASED I N T H I S REGARD. THE GEOMETRIC MEAN I S AN ESTIMATE OF 'CENTRAL TENDENCY*' OR OF A CHARACTERISTIC VALUE* OF A FREQUENCY D I S T R I B U T I O N THAT I S APPROXlH4TELY SYMMETRICAL ON A LOG SCALEI &ND I S THEREFORE USEFUL FOR CHARACrERIZ ING MANY G M C H E H I C A L D I S T R I B U T I O N S - THE GEOMETRIC MEAN 15 NOT AM ESTIMATE OF GEOCHEMICAL ABUNDANCE AND I S OF NO VALUE I N E S T I R A T I N G RESERVES OR TOThL AMOUNTS OF ELEMENTS PRESENT. SEE USGS PROFESSIONAL PAPER 574-8 FOR FURTHER DtSCUSSION. SEE USGS B U L L E T I N 1147E. PAGE 23. FOR EXPLANATION OF GEOMETRIC DEVIATION.
FREQUENCY TABLE FOR COLUHM
L I M I T S LOWER - UPPER
i.8E-02 - 2.6E-02 2.6E-02 - 3. BE-02 3.8E-02 - 5.6E-02 5.6E-02 - 8- 3E-02 8.3E-02 - 1.2E-01 1.2E-01 - 1.8E-01 L-8E-01 - Z.6E-01 2.6E-01 - 3.8E-01 3.BE-01 - 5.6E-01 5.6E-01 - 8.3E-01 8-3E-01 - t.2E 0 0 1 . 2 E 0 0 - 1 .BE00 1.8E 0 0 - 2.6E 0 0 2 . 6 E 0 0 - 3 .BE00 3.8E 00 - 5.6E 00 5 . 6 E 0 0 - 8 . 3 E 0 0
FREQ FREQ
HISTOGRAM FOR COLUMN 2 L HG PCT.)
7.OE-01 X X X
1.OE 0 0 X X X X X X X
PERCf NT FREQ
0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.61 6.54
26.14 13-07 31.37 13.01 7.19
1.5E 0 0 XXXXKXXXXXXXXXXXXXXXXXXKXX
2.OE 0 0 K X X X X X X X X X X X X
3.OE 0 0 XXXXXWXXKIXXXXKXXXXXXXXXXXXXXXX
5.OE 00 X X X X X X X X X X X X X
7.OE 0 0 X X X X X X X
PERCENT FREP CUM
0.0 0-0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.61 9.15
35 29 46.37 79.74 92.81
100.00
. Explanation
The letter E after a value stands for decimal exportenr and is followed by a signed or w i g n e d , one- or --digit integer. For example, a value of 1.OE-01 means 1.0 x 10-1 or 0.1, a value 1.OE 01 means 1.0 x 10' or 10.0, a value I-OR-02 means 1.0 x or 0.01, a value 1.OE 02 a- 1.0 x 102 or 100, etc.
Bistograms represant percent frequency distribution vhere each X equals one percent.
ANALYT ICAL G VALUES 0 153
0.0
GEOUETRIC DEVIATION = 1.76433E 00
TABLE 1
FREQUENCY TaBLE FOR COLUMN 3 ( CA PCT-1
LIMITS LOWER - UPPER
3.8E-02 - 5-6E-02 506E-02 - 803E-02 8.3E-02- 1.2E-01 102E-01 - 1.8E-01 1-BE-01 - 2.6E-01 2.bE-01 - 3.BE-01 3.8E-01 - 5.bE-01 5.6E-01- 8.3E-01 8-3E-01 - 1.2E 00 1 - 2 E 0 0 - 1 . 8 E 0 0 1 . 8 E 0 0 - 2 . 6 E 0 0 2tbE 00 - 3.8E 0 0 3.8E00- 5-6E 0 0 5.6E 0 0 - 8-3E 00 8.3E 0 0 - 1.2E 0 1 1.2E 0 1 - 108E 0 1 1oBE 0 1 - 2.6E 0 1
FREQ FREQ PERCENT CUR FRf Q
0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 0 0 0.0 1 1 0.65 5 6 3.27 1 T 0.65 5 12 3.27 9 2 1 5.88
15 3 6 9.80 21 57 13.73 50 107 32.68 24 131 15-69 1 9 150 12.42
3 153 1-96
HISTOGRAM FOR COLUMN 3 I CA PCT.1
1.5E 00 XXK
2.OE 0 0 XXXXXX
3-OE 00 XXXXXXXXXX
5.0E 00 XXXXXXXXXXXXXX
7.OE 00 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
1.OE 0 1 XKXXXXXXXXXXXXXX
1.SE 0 1 XXXXXXXXXXXK
GEO#ETRIt MEAN = 5 , 8 0 4 1 4 ~ 00
PERCENT FREQ CUM
0.0 0.0 0.0 0.0 0.0 0.0 0.55 3-92 4- 58 7 - 8 4
13.73 23.53 37.25 69.93 85.62 98 -04
100.00
Explanation
The letter E after a value stands for decimal exponent and is folloved by a signed or unsigned, one- or --digit integer. For example, a value of 1.033-01 m e a m 1.0 x 10-1 or 0.1, a value 1.013 01 means 1.0 x lof or 10.0. a value 1.OE-02 m e a n a 1.0 x or 0.01, a value I.OE 02 means 1.0 x lo2 or 100, etc.
Bietograme represent percent frequency dietribution where each X equals one percent.
GEOMETRIC DEVI&FIOW = 2.14412E 00
FREQUENCY TABLE FOR COLUWN 4 t T I PC1.I
LIMITS LDYER - UPPER
1-8E-03 - 2.6E-03 2.6E-03 - 3,8E-03 3.8E-03 - 5.6E-03 5-6E-03 - B.3E-03 8.3E-03 - 1-2E-02 1-2E-02 - 1.8E-02 1-8E-02- 2.6E-02 2-6E-02 - 3.0E-02 3-BE-02 - 5.bf-02 SO$€-02 - 8.3E-02 8.3E-02 - 1.2E-01 1-2E-01 - 1.8E-01 1-8E-01 - 2-6E-01 2.6E-01- 3.8E-01 3.8E-01 - 5-bE-01 5.6E-01 - B.3E-01 8-3E-01 - 1.2E 00
FREQ
0 0 0 0 0 0 0 0 0 0 0
1 0 5
3 7 3 1 47 21
FREQ C un 0 0 0 0 0 0 0 0 0 0 0
10 15 5 2 8 3
1 3 0 151
1.5E-OL XXXXXXX
2.OE-01 XXX
3mOE-01 XXXXXXXXKXXXXXXXXXXXXXXX
PERCENT FREQ 0.0 0.0 0. a 0.0 0.0 0.0 0.0 0.0 0.0 0. 0 0.0 6-54 3-27
24- 18 20.26 30-72 13.73
5,OE-01 XXXXXXXXXXXXXXXXXXXX
1.OE 0 0 XXXXXXXXXXXXXX
PERCENT FREQ cum
0.0 0.0 0.0 0.0 0.0 0 -0 0.0 0.0 0.0 0.0 0.0 6 - 5 4 9.80
33.99 54.25 84.97 98 069
The letter E after a value etands for derimsl expameat and is folluved by a aigned or unsigned, one- or tvo-digit integer. For emample, a value of 1.OE-01 meam 1.0 x 10-1 or 0.1, a value 1.OE 0 1 means 1.0 r 101 or 10.0, a d u e 1.0~-02 measle 1.0 x 10-2 or 0.01, a valm LOB 02 meane 1.0 x 102 or 100, etc.
3ietogrems represent percent frequency distribution where each X equals one percepr.
ANALYTICAL G VALUES 2 1 5 1
1.31
GEOMETRIC DEVIATION = 1-7143% 0 0
FREQUEWCY TABLE FOR CULUMM 5 4 HM PPH I
LIMITS . FREQ FREQ PERCENT LOWER - UPPER CUM FREQ
8.3f 00 - 1.2E 01 0 0 0.0 1 - Z f 01 - 1-8E 01 0 0 0.0 1-8E 01 - 206E O t 0 0 0.0 206E OL - 3-8E 01 0 0 01 0 3 -BE 01 - 5-6E OL 0 0 0.0 51bE 01 - 8-3E Oi 0 0 0.0 8-3E 0 1 - Lt2E 0 2 0 0 0- 0 t - 2 E 02 - 1-8E 02 9 9 5-88 LOSE 02 - 2.6E 5 2 10 19 5-54 2 - 6 E 0 2 - 3 - B E 0 2 21 40 13-73 3-BE 02 - 5.6E 0 2 10 5 0 6.54 5 . 6 E 0 2 - 8 . 3 E 0 2 2 2 72 14-38 8.3E 0 2 - 1.2E 0 3 39 111 25-49 1 - 2 E 0 3 - 1 - 8 E 0 3 42 153 27 -45
-HISTOGRAM FOR COLUHM 5 ( RN PPM 1
1-5E 02 XXXXXX
2.OE 02 XXXXXXX
3-OE 02 XXXXXXXXXXXXXX
5.OE 02 XXXXXXX
0-OE 02 XXXXXXXXXXXXXX
L.OE 03 XXXXXXXXXXXXXXXXXXXXXXIXX
1-5E 03 X X X X I X X X X X X K X Y X I X X X X X X X X X X X
GEOMETRIC MEAN 8 6-92533E 0 2
PERCENT FREQ cun
0.0 0.0 0.0 0-0 0-0 0.0 0.0 5 -86
12 -42 26- 14 32.68 47-05 72-55
lW.00 ,
The lettar E after a value standm for decimal exponest cmd is f o U d by a n i p & or unsigned, one- or Fir hteger. For upl la, a ah of 1.OE-01 mema 1.0 x 10' or 0.1. 4 valw 1.0E 01
1.0 r lo1 or 10.0, a value 1.OB-02 means 1.0 x 10-2 or 0.01, a value 1.QE 02 meane 1.0 x lo2 or 100, etc.
Histograms represent percent frequency distribution where each X epuals one parcent.
ANALYT1CaL 6 VALUES 0 IS3
0.0
TABLE 1
FREQUENCY T A W E FOR COLUMN 6 I AG PPH 1
LIHITS FREQ FREQ PERCENT PERCENT LOWER - UPPER cun FREQ FREQ CUR
3-BE-01 - 5.bE-01 3 3 1 96 1.96 5.bE-01- 8.3E-01 4 7 2.61 4.58
HISTOGRAM FUR COLUMN b I hG PPH 1
5.OE-01 XX
7.OE-01 XXX
GEOMETRIC WEAN = 6.05999E-01
GEONETRIC DEVIATION = 1.19704E 00
ANALYT ICM G VALUES 0 7 - 0.0
Explanation
The letter E after a value standa far decimal arrponent and is followed by a signed or unsigned, me- or +it integer. For T example, a value of 1.OE-01- 1.0 x 10- or 0.1, a value 1.OE 01 meam 1.0 IK lo1 or 10.0, a value 1.OE-02 meane 1.0 zs 10-2 or 0.01, a value 1.OE 02 means 1.0 x 102 or 100, etc.
Bfstograma represent percent frequency distribution where each X equals me percent.
TABLE 1
FREQUENCY TABLE FOR COLUMN 9 ( I3 PPU )
LIMITS FREQ FREU PERCENT COWER - UPPER CUM FREQ
8 . 3 E 0 0 - 1 - 2 E 0 1 2 2 1 -31 1 . 2 E 0 1 - 1 - B E 0 1 3 4 36 22.22 1-8f 01 - 2.6E 0 1 19 55 12-42 2-6E 0 1 - 3-BE 0 1 22 7 7 14.38 3.8E 01 - 5-6E 0 1 27 104 17.65 5-6E 0 1 - 8.3E 0 1 32 136 20.92 8.3E 01 - 1-2E 02 12 148 7 -64 1 . 2 E 0 2 - 1 - 8 E 0 2 5 153 3-27
HISTOGRAff FOR COLUMN 9 1 B PPM I
1.5E 0 1 XXXXXXXXXXXXXXXXXXXXXX
3.OE 01 XXXXXXXXXXIIXXX
S.OE 0 1 XXXXXXXXXXXXXXXXKX
7.OE 01 XXXXXXXXXXXXXXXXXXXXX
LOO€ 02 KXXXXXXX
1.5E 0 2 XXX
IAXIHUR 1.50000E 02
GEOMETRIC MEAN 3-6402OE 01
PERCENT FREQ CUM
1-31 23.53 35.95 50.33 67 97 88-89 96-13
100.00
Explanation
The letter E after a value stande for decimal exponent and is follorPed by a signed or unsigned, one- or d i g i t iuteger. For T- m l e , a vaZue of 1.OE-01 lneanti 1.0 x 10' or 0.1, a value 1.OE 01 mcanr, 1.0 lo1 or 10.0, a value 1.OB-02 means 1.0 x 10-2 or 0.01, a value 1.OE 02 m e a m 1.0 x 102 or lDD, etc.
matograms represent percent frequency distribution where each X equals one percent.
ANALYrlCht G VALUES 0 153
0.0
GEOMETRIC D E V I A T I O N = 2.03169E 00
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FREQUENCY TABLE FOR COLUMN 14 ( CO PPM)
FIHITS FREP FREQ PERCENT LOWER - UPPER CUM FREQ
3.8E 00 - 5-LE 00 3 3 1.96 5.6E 00 - 8.3E 00 0 3 0.0 B03E 00 - 1-2E 01 9 12 5-88 1.ZE 01 - 1-8E 01 11 23 7.19 1-8E 01 - 2.6E 01 17 40 11-11 2.6E 01 - 3.8E 01 58 98 37.91 3-8E 01 - 5.6E 01 26 124 16.99 5-6E 01 - 8.3E 01 25 149 16.34 8.3E 01 - 1.2E 02 1 150 0-65
HISTOGRAM FOR COLUMN 14 f CO PPM)
PERCENT FREQ CUM
1-96 1.96 7.84
15.03 26- 14 64.05 81-05 97-39 98 -04
1.5E 01 XXXXXXX
2.0E 01 XXXXXXXXXXX
3.OE 01 XXXXXXXXXXXXXXXXXXXXWXXXXXKXXXXXKXXXXX
5.OE 01 XXXXXXXXXXXXXKXXX
7.OE 01 XXXXXXXXXXXXXXXX
GEORETRIC MEAN 3.12003E 01
The le t ter E after a value stands for decimal exponent and is followed by a algned or unsigned, one- or tao-digit iuteper. For -pie, a value of 1.OE-01 means 1.0 x 10-1 or 0.1, a value 1.OE 01 aeans 1.0 x lo1 or 10.0, a value 1.OE-02 meaae 1.0 x 1W2 or 0.01, a value 1.OE 02 means 1.0 x 102 or 100, etc.
Histograms represent percent frequency distribution where each X equals on0 percent.
ANALYTICAL G VALUES 0 150
0.0
GEOMETRIC DEVIATION 1.83Ll4E 00
FREQUENCY TABLE FOR CDLUMN 15 1 CR PPM)
LIMITS FRfP FREQ PERCENT LOWER - UPPER CUM FREQ
3.8E 00 - 5.6E 00 0 0 0.0 5.6E 00 - 8.3E 00 0 0 0.0 8.3E 00 - 1-ZE 0 1 0 0 0.0 1.2E 0 1 - 1.0E 0 1 1 1 0.65 1.8E 01 - 2.6E 0 1 L 2 0-65 2.6E 01 - 3.8E 0 1 5 7 3.27 3.8E 01 - 5.6E 0 1 2 9 1.31 5.6E 01 - 8.3E 0 1 2 3 32 15.03 B.3E 01 - 1.2E 02 25 57 16.34 1.2E 0 2 - 1.8E 0 2 72 129 47.06 1.8E 02 - 2.6E 0 2 10 139 6.54 2-6E 02 - 3.8E 02 1 4 153 9.15
HISTOGRAM FOR COLUMN 15 ( CR PPHI
3mOE 0 1 XXX
P.OE 01 XXXKXXXXXXXXXXX
1.OE 02 XXXXXXXXXXXXXXXX
PERCENT FREQ CUM
0.0 0.0 0.0 0.65 1.31 4.58 5-86
20.92 37-25 84.31 90.85
100.00
2.OE 02 XXXXXXX
3.M 02 XXXXXXXXX
GEOMETRIC MEdN 5 1.23572E 02
ARALW f CAL 6 VALUES 0 153
0.0
The l e t t e r 1 after a valne stands for decimal exponent and is followed by a signed or unsipned, one- or two-digit integer. For example, a value of 1.OE-01 means 1.0 x 10-1 or 0.1, a value 1.OE 0 1 means 1.0 x lo1 or 10.0, a value 1.a-02 mans 1.0 x 10-2 or 0.01, a value LOB 02 me- 1.0 x 102 or 100. etc.
Histograms represent percent frequency distribution where each X equals one percent.
GfDHETRIC DEVIATION = 1*?1311E 00
FREQUENCY TABLE FOR COLUMN 1 6 ( CU PPM)
L IMITS FREQ FREQ LOWER - UPPER CUn
3 . 8 E 0 0 - 5 . 6 E 0 0 0 0 5.6E 00 - 8.3E 00 0 0 8.3E 00 - 1oZE 0 1 0 0 1.2E 0 1 - 1.8E 01 0 0 1.BE 0 1 - 2.6E 0 1 0 0 2-bE 01 - 3.8E 01 37 37 3 . B E 0 1 - 5 . 6 E 0 1 24 61 5.6E 0 1 - B.3E 01 30 9 1 B.3E 01 - 1-2E 02 20 111 1 . 2 E 0 2 - 1 0 8 E 0 2 3 4 145 lt8E 0 2 - 2.bE 02 4 149 2 . b E 0 2 - 3 . 8 E 0 2 2 151 3 . B E 0 2 - 5 . 6 E 0 2 1 152 5 . b E 0 2 - B .3E02 0 152 8-3E 0 2 - 1.2E 03 0 152 1.2E03- 1 - B E 0 3 k L53
PERCfNr FREQ 0.0 0.0 0.0 0.0 0.0
24.18 15.69 19.61 i3.07 22.22
2 -61 1.31 0.65 0.0 0.0 0.65
PERCENT FREP cun
0.0 0.0 0.0 0.0 0.0
24. 18 3908T 59.48 72-55 94.77 97.39 98-69 99-35 99.35 99.35 100. 00
HISTOGRAM FOB COLUHM 16 1 CU PPM)
3-OE ' 01 XXXXXXXXXXXXXXXXXXXKXXKX
5.OE 01 XXXXXXXXXXXXXXXX
I-OE 0 1 XXIXXXXXXXXXXXXXXXXX
P.OE 0 2 XXXXXXXYXXWXX
1.5E 0 2 XXXXIXKXXXXXXXXXXXXXXX
2.OE 02 XKX
GEOMETRIC HfRN = 7026834E 0 1
The letter I3 after a value stnnda for decimal exponent and is follwed by a signed or unaigaed, one- or --digit integer. For example, a value of 1.OE-01 means 1.0 x 10-I or 0.1, a value 1.OE 01 means 1.0 x 101 or 10.0, a value 1.0~-02 means 1.0 x 10-2 or 0.01, a value 1.OE 02 means 1.0 x 102 or 105, etc.
Bistogtams repreeent percent frequency distribution where each X equals one percant.
ANIL'YTICM G VALUES 0 153
0.0
GEDRETRIC DEVIATION = 2.00251E 00
fREQUEHCY TABLE FOR COLUMN 17 I LA PP#)
L I M I T S FREQ FREQ PERCENT PERCENT LOWER - UPPER CUM FREQ FREQ CUM
1.8E 01 - 2.6E 01 0 0 0.0 0-0 2-5E 01 - 3.8E 01 1 1 0.65 0.65
HISTOGRAM FOR COLUMN 17 I LA PPH)
3.OE 01 X
N L H B 7 0 74 0 0
50.m 4 8 . 3 7
HAXIHUFl = 3-OOOOOE 0i
nmrMun = 3.ooooo~ or
GEOHETRIG HEAR = 3-0008QE QL
GEOHETRIC DEVIATION = 9.99900E 48
AMALYT ICAL G VALUES 0 A
0.0
'We letter E after a d u e stan& for decimal axponent and is foL10ved by a sigaed ar unsigned, me- or twn-digit integer. For eximple, a value of 1.a-01 neanrr L O x 10-1 or 0.1, a value I.OE 01 meane 1.0 x lo1 or 10.0, a value 1.OE-02 mearm 1.0 x 1 r 2 or 0.01, a value 1.01~ 02 means 1.0 x lo2 or 100, etc.
gintograms represent one percent.
vhere each X
FREQUENCY TABLE FOR CDLUMM 16 ( MO PPMI
L IMITS fREQ LOWER - UPPER
3-8E 00 - 5-6E 00 2 1 5.6E 00 - B.3E 00 12 8.3E 0 0 - 1.2E 0 1 7 l t 2 E 0 1 - 1.8E 0 1 2 1-8E 01 - 2.6E 0 1 0 2.bE 0 1 - 3.8E 01 0 3.8E OL - 5-6E 0 1 0 5.6E 0 1 - 8.3E 0 1 1
HISTOGRAM FOR COLUHN 16 t MO PPW)
5 - O E 0 0 XXXXXXXXXXXXKX
7 - O E 00 XKXXXXXX
1.OE 0 1 XXXXX
GEOMETRIC HEAN 6-88011E 00
PERCENT FREQ 13-73
7 - 8 4 4-58 1.31 0.0 0.0 0.0 0.65
PERCENT FREQ CUM
13.73 21.57 26.14 21-45 27.49 27 -45 27.45 28.10
'Phe letter E after a value stands for decimal exponent and is folloved by a signed or unsigned, one- or two-digit integer. For example, a value of 1.OE-01 m e a w 1.0 x 10-1 or 0.1, a value 1.OE Of ~tane 1.0 x lo1 or 10.0, a value 1.OE-02 mea~s 1.0 x or 0.01, a value 1.OE 02 means 1.0 x 102 or 100, etc.
Iiistograms represent percent frequency distribution where each X equals one percent.
ANALYTSCAL G VALUES 0 43
0.0
GEOMETRIC DEVIATION 1-61780E 0 0
TABLE 1
FREQUENCY TABLE FOR COLUMN 19 I NB PPM)
L I M I T S FREQ FREQ PERCENT PERCENT LOWER - UPPER CUM FREQ FREQ CUM
8.3E 00 - 1-2E 01 135 135 08.24 88-24
HlSTOGRAM FOR COLUMN 19 1 NB PPM)
ANALYTICAL N t H 0 T G VALUES 0 18 0 0 0 0 135
0.0 11-76 0- 0 0.0
GEOMETRIC MEAN = 9.999b8E 00
GEOMETRIC DEVIITION 1.00853E 00
The letter E after a value stands for d e c W exponent and Pa follared by a eigaed or unsigned, one- or hio-digit integer. For example, a value of 1.OE-01 m e e 8 e 1.0 x 10-1 or 0.1, a wlue'l.0~ 01 means 1.0 x lD1 or 10.0. a value 1.0E-02 meane 1.0 x 10'~ or 0.01. a value 1.0s 02 meane 1.0 x 102 or 100. etc.
Histogram represent percent frequeucy distribution where each X equsle one percent.
FREQUENCY TABLE FOR COLUMN 20 I NI PPHI
L I M I T S LOMER - UPPER
3.8E 0 0 - 5-6E 5.6E 00 - 8.3E 8.3E 00 - 1-ZE 1-2E 0 1 - 1-8E 1.8E 01 - 2.6E 2.6E 0 1 - 3-8E 3-8E 0 1 - 5-6E 5.6E 01 - 8-3E 893E 0 1 - 1-2E 1.2E 02 - l o 8 E
FREP FREQ PERCENT CUM FREP
00 0 0 0.0 00 0 0 0.0 01 0 0 0.0 0 1 0 0 0- 0 0 1 1 1 0. 65 01 17 18 11.11 01 14 3 2 9-15 01 6 1 93 39-87 0 2 38 131 24-84 02 2 2 153 14-38
PERCENT FREQ cun
0.0 0.0 0.0 0.0 0.65 11.76 20.92 60-78 85-62
100.00
HISTOGRAW FOR COLUMN 20 1 NI QPMi
3-OE 0 1 XXXXXXXXXXX
500E 0 1 XXXXXXXKX
7-0E 0 1 XXIXXXXXXXXXXXXXXXXXXXXIXXXXXXXXXXXXXXXX
ANALYTICAL 6 VALUES 0 153
GEOHETRIC MEAN = 7.47024E 01
Explanation
'Zhe letter E after a value stPnQ for decimal exponeit and is follawtd by e aigned or unsigned, sw- or tuo-digit integer. For -10, a val e of 1.OE-01 nerms 1.0 x 10-1 or 0.1, a value 1.OE 01 - 1.0 = I$ or 10.0. a value l.OE-02 meam 1.0 I 10-2 a 0.01, a value 1.OE 02 mesas 1.0 x 102 or 100. etc.
Biatograms represent percent frequency diatribuzian where each X equals ope percent.
GEORETRIC DEVIATION = 1.58620E 00
FREQUENCY TABLE FOR COLUMN 21 ( PB PPM)
LIMITS FREQ FREQ PERCENT PERCENT LOWER - UPPER CUM FREQ FREQ CUM
8 . 3 E 0 0 - 1 0 2 E 0 1 20 20 13.07 13 -07 102E 01 - 1.8E 01 9 29 5. B 8 18-95 1-8E 01 - 2.6E 01 b 35 3-92 22-88
HISTOGRAM FOR COLUMN 2 1 I PB PPM1
1.OE 0 1 XXXXXXXXXXXXX
1.SE 0 1 KXXXXX
2.OE 0 1 XXXX
MAXIMUM 2-00000E 01
Explanation
The letter E after a value stands for decimal exponent and is folloved by a signed or unsf~ned. one- or tw-d ig i t integer. For ezcample, a value of 1.OE-01 m e a n s 1.0 x 10'1 or 0.1. a value 1.OE 01 neaw 1.0 t 10' or 10.0, a value 1.OE-02 means 1.0 n ir 0.01, a value 1.m 02 wana 1.0 x 102 or 1100, etc.
Hiatograma represent percent frequency distribution where each X equals m e percent.
ANALYTICAL G VALUES 0 35
0.0
GEOMETRIC DEVIATION = 1.32008E 00
W u7
FREQUENCY TABLE FUR COLUHM 23 4 SC PPM)
L I H I T S LONER - UPPER
3-8E 00 - 5.6E 5-6E 00 - 8.3E 8-3E 00 - 1.2E 1-2E 01 - 1-8E 1-8E 01 - 2.6E 2-6E 0 1 - 3.8E 3.8E 0 1 - 5.6E
FRE Q FREQ CUM
0 10 1 6 6 4 94 151 153
HISTOGRAM FOR COLUMN 2 3 SC PPM)
PERCENT PERCENT FREQ FREP CUM
0.0 0.0 6.54 6 -54 3.92 10-46 31.37 41-83 19-61 61 -44 37.25 98.69
1 -31 100.00
1-OE 0 1 XKXK
LOSE 0 1 XXXXXXXKXKXKXKXXWXXXXXXXXXXXXXX
2.OE 0 1 XKXXXXXXXXXXXXXXXXXX
HAXIMUR 5.00000E 0 1
GEOHETRIC BEAM 1.95445E 01
Explanation
'Phe letter E after a value stands for decimal exponent asld is fallwed by a signed or unatgned, one- or two-digit iaeeger. For example. a value of 1.OE-01 meana 1.0 x 10'1 or 0.1, a value 1.03 01 maas 1.0 x lo1 or 10.0, a value 1.OE-02 meaas 1.0 x 10'~ or 0.01, a VRIW 1 . 0 ~ 02 means 1.0 x 102 or 100, etc.
Histograms represent percent frequency distribution where each X e q d s one percent.
ANALYTICAL G VALUES 0 153
0 - 0
GEOMETRIC DEVIATION = 1.54602E 00
FREQUENCY TABLE FOR COLUMN 25 ( SR PPWI
L IMITS FREQ LOWER - UPPER
8-3E 0 1 - 1-2E 0 2 0 I.2E 0 2 - 1.BE 02 1 9 1-8E 0 2 - 2-bE 0 2 28 2 . 6 E 0 2 - 3 . 0 E 0 2 35 3-8E 02 - 5-6E 02 18 5-6E 0 2 - 8-3E 0 2 38 B.3E 0 2 - 1.2E 0 3 1 1 1-2E 03 - 1-8E 03 4
FREQ PERCENT CUM FREQ
0 0 -0 19 12-42 4 7 18-30 8 2 22.88
100 11.76 138 24-84 149 ' 7-19 153 2.61
HISTOGRAM FOR COLUMN 25 I SR PPM)
1.5E 02 XXXXXXXXXXXX
2.OE 02 XKXXXXXXXXXXXXXXXX
5.OE 02 XXXXXXXXXXXK
7mOE 0 2 XXXXXXXXXXXXXKXXXXXXXXXXX
1-0E 03 XXXXKXX
1-5E 03 XXX
MINIMUM = 1-50000E 02
GEOMETRIC HEAN = 3080920E 0 2
PERCENT FREQ cun
0.0 12-42 30-72 53.59 65 36 90 -20 97-39 l00*00
The letter E after a value stands for dechal c.xponant and is followed by a signed or uaeigmd, nne- or
1 Fit For -la, a val a of 1.OE-01 mans 1.0 x 10- or 0.1, a value 1.OE 01 m e a ~ 1.0 x 10 or 10.0, a value 1.OE-02 means 1.0 s l0-2 or 0.01. a value 1.OE 02 meam 1.0 x 102 qr 100, etc.
Histogram8 represent percent frequency distribution where each X equals one percent.
ANaLYT ICAL G VALUES 0 153
0.0
GEOUETRIC DEVIATION 1-90752E 00
TABLE 1
FREQUENCY TABLE FOR COLUMN 26 ( V PPM)
L IMITS LDWfR - UPPER
8.3E 0 0 - 1-2E 1.2E 01 - 1.8E 1.BE 0 1 - 2.bE 2.bE 0 1 - 3-8E 3-8E 0 1 - 5.6E 5.6E 0 1 - 803E 8.3E 01 - 1.2E 1.2E 02 - 1.8E 1.8E 0 2 - 2.6E 2.6E 02 - 3.8E 3.8E 0 2 - 5.bE 5.6E 02 - 8.3E
FREQ FREQ PERCENT CUM FREQ
01 0 0 0.0 01 0 0 0.0 01 0 0 0.0 0 1 0 0 0.0 0 1 2 2 1.31 0 1 4 b 2.61 02 5 11 3.27 02 16 2 7 10.46 02 38 6 5 24.84 02 6 8 133 44.44 02 19 152 12.42 02 1 153 0.65
PERCENT FREQ CUH
0.0 0.0 0.0 0.0 1.31 3.92 7- 1 9
17 -65 42-40 81-93 99.35
100.00
HISTOGRAM FOR COLUMN 2 6 I V PPM)
7-Of 01 XXX
1*0E 02 X X X
1.SE 0 2 XXXXXXXXXX
2.OE 02 XXXXXXXXXXXXXXXXXXXXXXXXX
3.OE 02 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
5.OE 0 2 XXXXXXXXXXXX
MAXIMUM s 7.00000E 02
GEOMETRIC MEAN 5 2.45215E d2
Explanation
The letter E after a value stands for decimal exponent and is followed by a signed or uslsigwd, one- or -dig i t integer. For 'if" esample, a valy of 1.OE-01 means 1.0 x 10' or 0.1, a value 1.033 01 mans 1.0 x 10 or 10.0, a value 1.OE-02 m e a m 1.0 x 10-2 or 0.01, a value 1.OE 02 means 1.0 x 102 or 100, etc.
Histograms represent percent frequency distribution where each X e m s one percent.
ANALYTICAL G VALUES 0 153
0.0
GEOMETRIC DEVIATION = 1.60874E 00
FREQUENCY TABLE FOR COLUHN 28 ( Y PPM)
LIMITS FREQ FREQ PERCENT PERCENT LOWER - UPPER cun FREQ FREP CUM
8-3E 00 - 1 - 2 E 01 4 4 2 - 6 1 2.61 1.2E 01 - 1 - 8 E 0 1 26 30 1 6 - 9 9 1 9 - 6 1 1 - 8 E 01 - 2 - 6 E 01 79 109 5 1 . 6 3 71.24 2 .6E 01 - 3.8E 0 1 44 1 5 3 28-76 LOO.00
HISTOGRAM FOR COLUMN 28 I Y PPR)
TABLE 1
Explanation
The latter E after a value stands for decimal exponeat and is followed by a signed or unsigned, one- or tvc-dig i t integer. For example, a value of 1.OE-01 means 1.0 x 10-1 or 0.1, o value 1.OE 01 means 1.0 x 10' or 10.0, a value 1.OE-02 m- 1.0 x 10-~.or 0.01, a value 1.OE 02 means 1.0 x 102 or 100, etc.
Eiakogrms represent percent frequency distribution vhere each X equals one percent.
1.OE 01 XXX
105E 01 XXXXXXXXXXXXXXXXX -~
3.OE 01 X X X K X X X X X X X X X X X X X X X X X X X X X X X X X
A N A L Y T I C A L N t ti B T G VALUES 0 0 0 0 0 0 153
0.0 0.0 0.0 0.0
MAXIMUM 3 3.00000E 01
GEOMETRIC DEVIATION = 1.30763E 00
FREQUENCY TABLE FOR COLUHM 29 ( ZN PPM)
L I M I T S FREQ FREQ PERCENT PERCENT LOWER - UPPER CUM FREQ FREQ CUM
1.8E 0 2 - 2-bE 02 13 13 8- 5 0 8-50 2-6E 0 2 - 3-8E 0 2 1 2 25 7-84 16 -34 3.8E02- 5 - b E 0 2 1 2 6 0- 65 16-99
HISTOGRAM FOR COLUMN 29 ( ZN PPM)
2.OE 02 XXXXXXXX
3.OE 02 KXXXXXXX
5-OE 0 2 X
GEOMETRIC MEAN = 2.49005E 02
Explanation
The letter E after a value stande for decimal exponent and ia folloved by a signed or unsigned. one- or two-digit integer.. For v l e , a value of 1.OE-01 means 1.0 x 10-1 or 0.1, o value 1.OE 01 scan6 1.0 r lo1 or 10.0, a value 1.OE-02 meane 1.0 x U-2 or 0.01, d value 1.OE 02 means 1.0 x 102 or 100, etc.
Eistograms represent percent frequency distribution where each X equals one percent.
AMALYT ICAL G VALUES 0 2 6
0.0
GEOMETRIC DEVIATION = 1-2BOb5E 00
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I N THE COWPUTATIQNS PERFORMED TO PRODUCE THE FQLLOWING TABLE OF GEOMETRIC HEANS AND DEVIATIONSt ALL ELEMENTS ARE IGNORED WHERE O%E OR MORE OF THE UNQUALIFIED DATA VALUES I S LESS THAN THE AMALYTtCAL L I M I T OF DETECTION SPECIFIED ON INPUT OR WHERE AMY DATA VALUES ARE QUALIFIED WITH THE G (GREATER THAN) CODE. DATA VALUES QUALIFIED WITH B OR H ARE NOT USED I N THE COMPUTATIOWS. WHERE NONE OF THE DATA VALUES FOR AM ELEMENT ARE QUALIFIED THE #€AM AND DEVIATION SHOULD BE THE SAME AS THOSE GIVEN I N THE PRECEOIlG SECTION. WHERE DATA ARE QUALIFIED WITH THE CODES N* L1 OR T t THE ESTIMATES OF GEOMETRIC REAM AND DEVIATIDN ARE BASED OF4 A WETHOD BY A- J. COHEN F(IR TREATING CEMSORED DISTRIBUTIONS- THE APPLICATION OF TH IS METHOD TO GEOCHEMICAL PROBLEHS I S DESCRIBED I N USGS PROFESSIONAL PhPER 574-8- THE ESTIMATES ARE UMBIASED I N h STRICT SENSE ONLY WHERE THE OhTA ARE DERIVED FROM A LOGNORMAL PARENT POPULATION. BUT EXPERIMENTS HAVE SHOWN THAT LARGE DEPARTURES FROM THIS REPUIREMEMT MAY NO? GREATLY INVALIDATE THE RESULTS ACCEPTANCE AND USE OF THE ESTlMIITESq HOWEVERt I S THE RESPONSIBILITV OF THE INOIVIDUAL-
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