Chemical analyses and K-Ar ages of samples

from 13 drill holes, Medicine Lake volcano,

California

By Julie M. Donnelly-Nolan

2006

Open-File Report 2006–1041

U.S. Department of the Interior
2

U.S. Geological Survey

U.S. Department of the Interior

Gale A. Norton, Secretary

U.S. Geological Survey

P. Patrick Leahy, Acting Director

U.S. Geological Survey, Reston, Virginia 2006

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this report.
3

Contents

Abstract ............................................................................................................................. 4

Introduction ....................................................................................................................... 4

Methods............................................................................................................................. 4

Acknowledgements............................................................................................................ 5

References Cited ................................................................................................................ 5

Figures

1. Map showing locations of drill holes (plus symbols). Volcanic deposits of Medicine

Lake volcano are shown in gray. Cross-section A-A' (thin black line) is shown in

Figure 2.................................................................................................................. 6

2. Cross-section A-A' (see Figure 1 for location) showing drill holes projected to line of

section. Drill hole 87-24 on far east side of volcano is not included, nor are holes

OWML5 and 86-23, where sampling began below lavas of Medicine Lake

volcano (MLV) ...................................................................................................... 7

Tables

1. Summary of drill hole information. ............................................................................... 8

2. Major element and EDXRF trace element data .............................................................. 9

3. Flame photometry and INAA data............................................................................... 14

4. K-Ar dates on drill core samples.................................................................................. 20
4

ABSTRACT

Chemical analyses and K-Ar ages are presented for rocks sampled from drill holes

at Medicine Lake volcano, northern California. A location map and a cross-section are

included, as are separate tables for drill hole information, major and trace element data,

and for K-Ar dates.

INTRODUCTION

This report presents chemical analyses and K-Ar ages obtained from drill hole

samples studied in support of geologic mapping at Medicine Lake volcano (MLV),

northern California. The holes were drilled by private companies exploring for

geothermal energy at the volcano. Drill core and cuttings were later made available for

study; core is stored at the Energy and Geoscience Institute (EGI) warehouse in Salt Lake

City, Utah.

Drill hole locations are shown in Figure 1 and a generalized cross-section is

presented in Figure 2. Discussion of the significance of the chemical and age data will be

presented elsewhere, although it is apparent from the cross-section and from Table 1 that

a large percentage of MLV core consists of rocks with more than 63 percent SiO2. A

brief preliminary comparison of drill hole information and surface geologic mapping is

found in Donnelly-Nolan (1990).

The classic reference for the geology of MLV is Anderson (1941). More recent

general studies include Donnelly-Nolan (1988) and Donnelly-Nolan and others (1990).

METHODS

Rock samples were collected from drill core for 12 of the 13 drill holes studied by

the author. For one hole, 17A6, only drill cuttings were available. Rocks were broken up

using a hammer, then chipped into small fragments in a small ceramic jaw crusher.

Samples were powdered in an alumina shatterbox.

Major elements (Table 2) were analyzed by X-Ray fluorescence (XRF) at the

USGS chemical analysis laboratory in Denver, Colorado, by J. Taggart, A.J. Bartel, D.F.

Siems, and J.S. Mee. In the original major element analyses, all iron was reported as

Fe2O3 (FeTO3). The normalized analyses presented in Table 2 were calculated by first

recalculating all iron as FeO (=FeO*), summing all major elements without LOI (Loss on

Ignition), and then recalculating all major elements to a 100 percent total.

Trace elements presented in Table 2 were analyzed by energy-dispersive XRF

(Kevex) at the chemical analysis laboratory in Menlo Park, California, by P. Bruggman.

Flame photometry analyses of Na2O and K2O in a subset of the samples is presented in

Table 3; these analyses were performed by L. Espos, M. Dyslin, and T. Fries in Menlo

Park, California. Also presented in Table 3 are Instrumental Neutron Activation trace

element analyses (INAA) that were performed at the USGS chemical analysis laboratory

in Reston, Virginia. Analysts for these data were G. Wandless, P. Baedecker, J.S. Mee,

and C. Palmer.

K-Ar ages presented in Table 4 summarize data published in Donnelly-Nolan and

Lanphere (2005), where complete analytical data are found.
5

Core boxes of drill hole 87-24 were mistakenly labeled 84-27 and are stored as

such at the EGI warehouse; sample numbers for core samples from this hole are corrected

here.

ACKNOWLEDGMENTS

Funding for this work was provided by the USGS Geothermal and Volcano

Hazards Programs. We are grateful to the geothermal energy companies exploring at

Medicine Lake volcano for making the samples available. Drill core samples were split

from stored core at the Energy and Geoscience Institute in Salt Lake City, Utah. I am

grateful to EGI staff for access to the core. I especially thank all of the chemists who

analyzed the samples (see text for their names) and W. Loskutoff for help with sample

collection and preparation.

REFERENCES CITED

Anderson, C.A., 1941, Volcanoes of the Medicine Lake Highland, California: University

of California Publications, Bulletin of the Department of Geological Sciences, v.

25, p. 347-422.

Donnelly-Nolan, J.M., 1988, A magmatic model of Medicine Lake volcano, California:

Journal of Geophysical Research, v. 93, p. 4412-4420.

Donnelly-Nolan, J.M., 1990, Geology of Medicine Lake volcano, northern California

Cascade Range, Geothermal Resources Council Transactions, v. 14, Pt. II, p.

1395-1396.

Donnelly-Nolan, J.M., Champion, D.E., Miller, C.D., Grove, T.L., and Trimble, D.A.,

1990, Post-11,000-year volcanism at Medicine Lake volcano, Cascade Range,

northern California: Journal of Geophysical Research, v. 95, p. 19,693-19,704.

Donnelly-Nolan, J.M., and Lanphere, M.A., 2005, Argon dating at and near Medicine

Lake volcano: Results and data: U.S. Geological Survey Open-File Report 2005-

1416, 37 p. [web address needed]
Figure 1. Map showing locations of drill holes (+ symbols). Lavas of Medicine Lake volcano are

shown in gray. See Figure 2 for cross-section A-A’.

p. 6

3

.

.

.

.

.

.

.

. .

.

.

52-4

86-23

OWML5

62-21

18-34

27-27

87-24

17A6

45-36

28-32

68-16 57-13

36-28

10 km

Medicine Lake

121°45'W 121°30'W

42°45'N

42°30'N

121°45'N 121°30'W

Caldera Rim

Lava

Beds

National

Monument

Glass Mountain

Little

Glass Mt.

2000 m

1500 m

Garner Mt.

Black Mountain

Antelope Well

Mammoth Crater

Yellowjacket

Butte

Mount Homan

Gillem

Bluff

Mount Dome

Fourmile Hill

A

A’

Tionesta
?

?

?

?

?

?

?

?

1000 m

1500 m

2000 m

5 km

Medicine Lake Caldera

Pre-MLV rocks

< 63% SiO2

> 63% SiO2)

No recovery

A Explanation A'

Dacite tuff of

Antelope Well (dta)

dacite tuff of

Antelope Well

68-16

57-13

36-28

45-36

28-32

17A6

62-21

27-27

18-34

52-4

North

South

p. 7

?

?

? ?

? ?

? ?

Figure 2. Cross-section A-A’ (see Figure 1 for location) showing drill holes projected to line of section. Drill hole 87-24 on far east side of

volcano is not included, nor are holes OWML5 and 86-23, where sampling began below lavas of Medicine Lake volcano (MLV).

6000 ft

4000 ft

2000 ft
p. 8

Table 1. Summary of drill hole information

See Figure 1 for map locations

Hole No. Ground Surface Bottom Total Depth to Total Feet Estimated elevation, Feet of MLV Feet of MLV Core Latitude Longitude

Elevation Elevation Depth Top of Core of Core Base of MLV Core with ≥63.0% SiO2 N. 41° W. 121°

Holes with drill core:

OWML5 6400 2398 4002 402 3600 above core 0 0 33.95' 42.46'

18-34 5840 2340 3500 519 2981 below core 2981 1749 30.93' 37.42'

27-27 5800 2800 2963 466 2497 5204 130 107 32.08' 30.17'

28-32 7240 2740 4500 420 4080 below core 4080 2534 36.40' 32.52'

36-28 6680 4534 2146 353 1793 5276 1051 53 37.45' 38.17'

45-36 6960 2960 4000 6 3994 below core 3994 1838 36.66' 34.54'

52-4 5600 1591 4009 367 3642 4648 585 287 30.73' 44.62'

57-13 6140 3140 3002 409 2593 3365 2366 2365 39.01' 34.24'

62-21 6600 4458 2142 487 1655 below core 1655 160 33.49' 37.74'

68-16 6280 2341 2939 471 2468 below core 2468 1857 39.13' 37.95'

86-23 6000 2497 3503 613 2890 above core 0 0 32.85' 42.13'

87-24 4440 3314 1126 10 1116 4200 210 0 38.21' 20.02'

TOTALS 32193 19310 10950

56.1% of MLV Core

Hole with drill cuttings only:

17A6 6771 -2849 9620 cuttings @ 10' intervals below 3211 ? ? 35.54' 33.74'

Note: all measurements are in feet
Table 2. Major element and EDXRF trace element data p. 9

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

A B C D E F G H I J K L M N O P Q R S T U V W X

HOLE DEPTH MAJOR ELEMENTS-Normalized Original Loss on EDXRF trace elements

No. in feet SiO2 Al2O3 FeO* MgO CaO Na2O K2O TiO2 P2O5 MnO Total Ignition Rb Sr Y Zr Nb Ba Ni Cu Zn Cr

Major element data (columns C through N) in weight percent Trace element data (columns O through X) in ppm

17A6 110 58.96 16.77 7.26 2.91 6.25 4.65 1.43 1.28 0.35 0.14 99.16 0.02 46 539 35 186 10 519 15 79 81 30

17A6 250 58.85 16.94 7.11 2.91 6.42 4.63 1.40 1.26 0.33 0.14 99.34 <0.01 45 546 34 182 11 506 24 56 66 24

17A6 400 53.00 17.94 9.11 5.06 9.07 3.69 0.57 1.18 0.21 0.16 99.10 0.63 22 579 27 117 4 238 33 87 78 85

17A6 510 51.92 18.73 8.59 5.56 9.72 3.46 0.56 1.09 0.19 0.16 99.16 0.35 21 489 24 103 4 785 51 100 76 86

17A6 770 72.32 14.24 2.16 0.34 1.29 4.74 4.36 0.41 0.09 0.05 98.55 0.33 153 109 42 334 11 729 2 10 43 5

17A6 1010 60.26 16.11 6.77 2.89 5.85 4.37 2.09 1.18 0.34 0.13 98.81 0.56 63 368 38 228 11 563 13 54 74 26

17A6 1220 63.75 15.81 5.08 2.56 4.86 3.93 2.93 0.80 0.17 0.10 99.23 0.79 97 228 36 236 9 545 30 40 66 48

17A6 1440 65.24 16.54 4.28 1.38 4.11 4.58 2.71 0.82 0.25 0.09 97.18 2.06 79 363 34 225 9 611 8 27 62 17

17A6 1660 60.55 17.18 5.78 2.70 6.00 4.35 2.04 0.97 0.31 0.11 97.24 2.39 54 474 29 201 9 529 21 34 74 38

17A6 1880 66.23 15.85 4.29 1.33 3.37 4.98 2.77 0.84 0.24 0.09 98.91 0.33 88 339 35 244 13 637 3 23 61 5

17A6 2130 67.41 15.35 4.02 1.10 2.96 4.88 3.16 0.80 0.23 0.08 98.79 0.54 96 304 36 266 11 704 5 22 58 6

17A6 2360 59.33 17.38 6.29 3.43 6.64 3.82 1.74 0.95 0.30 0.12 97.94 1.51 52 481 31 184 10 501 31 45 76 57

17A6 2610 58.52 17.96 6.20 3.43 7.01 3.96 1.50 0.97 0.32 0.13 97.55 2.11 50 490 32 180 11 478 32 50 70 60

17A6 2850 58.52 17.82 6.21 3.59 6.79 4.12 1.53 0.96 0.32 0.12 97.21 2.06 45 469 30 176 10 458 28 47 73 50

17A6 3090 59.73 18.42 5.49 2.93 7.12 3.92 1.13 0.88 0.27 0.10 96.69 2.78 33 502 28 159 9 460 21 40 65 39

17A6 3370 67.39 15.90 3.89 0.78 2.07 6.20 2.65 0.76 0.23 0.14 97.91 1.2 54 225 47 313 14 776 4 5 83 4

17A6 3600 61.06 16.06 6.89 2.19 5.62 4.51 1.73 1.36 0.41 0.16 95.38 3.48 38 332 42 245 11 529 8 53 90 23

17A6 3870 55.52 16.42 9.40 3.48 8.06 4.23 0.85 1.49 0.37 0.18 95.37 3.9 22 455 34 155 6 350 16 82 96 32

17A6 4110 43.71 5.98 3.35 1.60 43.84 0.46 0.35 0.35 0.25 0.12 76.93 21.5 28 1057 19 97 4 605 27 32 38 35

17A6 4300 54.77 15.71 9.71 3.87 9.03 4.00 0.86 1.49 0.39 0.18 96.52 3.18 20 438 38 150 5 372 11 92 96 40

17A6 4650 56.51 15.78 9.09 2.93 7.15 4.38 1.85 1.68 0.45 0.18 95.99 2.87 40 403 40 190 7 634 14 70 94 25

17A6 4750 58.55 16.06 8.39 2.61 5.72 4.80 1.55 1.60 0.54 0.18 97.39 1.86 29 376 44 230 11 555 5 33 90 13

17A6 4850 60.67 15.89 6.66 2.03 5.86 5.04 1.91 1.29 0.50 0.16 96.97 1.96 38 373 45 213 9 639 11 42 86 17

17A6 5010 60.46 16.96 5.96 2.44 6.59 4.45 1.62 1.06 0.32 0.14 96.73 2.27 36 399 36 194 9 526 13 38 66 33

17A6 5250 59.10 17.83 5.87 2.55 7.04 4.22 2.07 0.94 0.25 0.12 97.08 1.99 49 409 33 162 8 445 18 43 60 47

17A6 5510 64.19 15.95 5.12 1.54 3.92 5.66 2.33 0.90 0.25 0.13 97.13 1.52 48 274 45 294 13 702 11 41 73 11

17A6 5820 54.04 17.70 8.59 4.51 9.14 3.80 0.59 1.21 0.27 0.15 98.08 1.55 14 456 25 130 6 245 20 71 77 89

17A6 6050 53.86 17.22 9.16 3.62 9.46 3.96 0.80 1.43 0.33 0.17 96.21 2.73 20 495 34 151 6 384 81 183 86 52

17A6 6310 60.52 16.23 6.72 2.65 5.26 4.73 2.11 1.25 0.37 0.15 98.05 1.21 45 334 40 268 10 637 21 30 76 29

17A6 6580 74.14 12.87 2.20 0.75 1.67 2.87 5.03 0.33 0.09 0.05 98.16 0.99 126 101 40 166 14 165 21 28 29 14

17A6 6810 55.67 19.28 6.75 3.60 8.61 3.63 1.13 0.96 0.22 0.15 97.72 1.59 28 438 30 122 5 221 65 55 82 82

17A6 7100 74.61 13.42 1.68 0.28 0.85 3.88 5.00 0.18 0.05 0.03 98.56 0.62 130 58 40 168 14 150 125 15 19 16

17A6 7410 52.10 18.05 8.86 6.22 9.14 3.38 0.71 1.13 0.27 0.13 97.89 1.63 40 499 39 139 9 262 118 44 55 153

17A6 7700 58.00 17.65 7.16 3.43 6.97 4.05 1.28 1.14 0.25 0.09 97.67 1.76 61 470 40 171 6 333 17 70 75 36

17A6 8000 68.43 15.30 3.36 1.27 3.39 3.90 3.38 0.66 0.25 0.06 98.42 0.99 125 307 34 208 10 773 10 14 38 7

17A6 8210 73.13 14.48 1.72 0.51 2.13 4.10 3.45 0.33 0.10 0.04 98.92 0.5 111 241 23 156 8 837 3 17 39 10

17A6 8550 69.69 14.83 3.03 0.96 2.87 4.10 3.64 0.58 0.22 0.08 98.76 0.88 132 258 38 231 13 980 6 22 63 5

17A6 8800 71.71 14.57 2.27 0.67 2.30 4.19 3.70 0.41 0.12 0.06 98.42 0.48 125 243 30 194 7 854 2 10 33 6

17A6 9060 64.02 16.23 4.92 1.68 4.22 5.00 2.46 0.97 0.39 0.11 98.48 0.61 71 306 40 266 12 700 11 15 72 8

17A6 9210 68.68 15.33 3.39 0.90 3.17 4.43 3.21 0.60 0.22 0.07 98.22 0.53 91 286 34 195 8 882 67 31 46 13

17A6 9500 71.76 14.70 2.20 0.59 2.42 4.15 3.60 0.41 0.13 0.06 98.91 0.43 103 241 30 188 9 830 18 14 39 8

17A6 9620 72.67 14.72 1.60 0.46 2.25 4.03 3.80 0.32 0.11 0.04 98.70 0.53 94 238 22 153 4 892 65 16 23 14

18-34 540 60.08 16.88 6.41 2.97 6.26 4.28 1.76 1.00 0.24 0.12 100.25 < 0.01 40 496 25 174 6 508 19 27 47

18-34 582 52.44 19.25 7.08 6.44 9.67 3.22 0.75 0.83 0.20 0.12 100.52 < 0.01 18 687 17 116 5 327 108 115 42

18-34 622 54.68 16.60 9.90 3.71 7.64 4.43 1.00 1.53 0.34 0.18 99.28 0.04 16 457 28 133 8 400 9 88 93 28

18-34 677 55.28 15.95 10.02 3.64 7.62 4.22 1.07 1.67 0.33 0.19 100.79 < 0.01 17 401 32 162 5 426 18 71 75

18-34 714 51.73 17.38 9.22 5.95 9.20 3.52 0.95 1.51 0.37 0.17 100.57 < 0.01 18 418 26 158 8 324 71 66 56

18-34 781 68.81 15.09 3.43 1.04 2.57 4.29 3.84 0.69 0.18 0.06 99.78 0.26 108 184 33 298 10 760 14 19 38

18-34 859 68.93 15.15 3.36 0.93 2.49 4.29 3.91 0.69 0.18 0.07 98.73 0.15 112 183 33 300 11 744 4 20 49 9

18-34 919 60.74 16.92 5.97 3.10 6.30 3.88 1.90 0.87 0.22 0.10 99.94 0.11 52 399 24 167 9 578 29 82 54

18-34 920 75.65 13.52 1.14 0.10 0.59 3.99 4.81 0.10 0.05 0.04 98.47 1.44 122 50 36 147 11 747 9 23 29

18-34 1059 69.71 15.10 3.10 0.75 2.10 4.53 3.89 0.61 0.15 0.07 99.04 0.94 101 175 37 326 12 892 11 16 42

18-34 1170 63.86 16.04 5.29 1.75 4.27 4.43 2.87 1.04 0.35 0.11 99.71 0.40 69 290 36 287 13 770 16 21 72

18-34 1297 74.94 13.50 1.44 0.29 1.07 3.99 4.44 0.25 0.05 0.03 99.44 0.36 129 103 31 190 9 771 8 5 26
Table 2. Major element and EDXRF trace element data p. 10

1

2

A B C D E F G H I J K L M N O P Q R S T U V W X

HOLE DEPTH MAJOR ELEMENTS-Normalized Original Loss on EDXRF trace elements

No. in feet SiO2 Al2O3 FeO* MgO CaO Na2O K2O TiO2 P2O5 MnO Total Ignition Rb Sr Y Zr Nb Ba Ni Cu Zn Cr

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

18-34 1568 66.06 15.76 4.40 1.40 3.45 4.39 3.29 0.87 0.28 0.09 99.49 0.29 81 247 36 296 14 805 13 22 45

18-34 1630 75.96 13.33 1.15 0.11 0.60 4.07 4.59 0.10 0.05 0.04 99.12 0.57 127 47 36 154 14 753 8 1 31

18-34 2220 67.58 15.55 3.78 1.13 2.90 4.45 3.54 0.76 0.23 0.08 98.81 0.63 86 215 35 307 12 847 11 17 40

18-34 2575 54.61 18.50 7.89 4.78 8.37 3.62 0.83 1.05 0.19 0.16 100.31 0.31 22 625 21 115 4 333 48 59 59

18-34 2758 54.66 17.80 9.21 4.52 7.95 3.04 1.03 1.35 0.27 0.17 96.47 4.09 22 504 22 111 5 308 43 60 73

18-34 2845 60.69 17.49 6.39 2.07 5.05 4.74 1.96 0.89 0.54 0.17 99.06 0.57 37 491 32 173 6 649 13 10 89

18-34 3237 55.71 18.00 8.17 3.92 7.65 3.93 0.98 1.19 0.30 0.14 99.81 0.41 18 559 23 132 5 365 25 41 71

18-34 3370 53.75 18.46 8.11 5.13 8.60 3.35 1.01 1.13 0.31 0.15 98.36 1.96 20 567 21 129 7 359 64 44 59

18-34 3370 55.92 17.85 8.45 3.70 6.98 4.23 1.07 1.30 0.34 0.16 98.38 1.01 18 538 26 139 6 396 10 41 86 22

18-34 3406 53.72 20.38 6.68 4.03 9.91 3.29 0.66 0.97 0.23 0.13 97.89 2.47 13 624 19 105 2 244 53 43 59

18-34 3478 54.02 18.79 7.70 5.17 8.79 3.46 0.65 1.02 0.25 0.15 98.20 1.8 10 579 21 104 4 283 48 43 76 78

18-34 3497 53.49 18.71 7.84 5.40 8.84 3.54 0.77 1.05 0.23 0.13 99.20 1.25 12 572 19 104 4 283 54 44 62

27-27 527 65.07 16.09 4.83 1.50 3.89 4.85 2.48 0.96 0.23 0.10 99.97 0.18 63 363 27 217 8 623 10 24 49

27-27 590 69.57 17.25 2.76 0.62 1.71 3.59 3.81 0.51 0.09 0.08 91.85 7.33 95 175 39 340 13 916 4 20 56 5

27-27 756 54.89 17.29 8.10 4.29 8.69 3.72 1.23 1.32 0.32 0.15 100.36 0.35 22 446 23 156 6 443 31 88 59

27-27 1094 55.76 18.28 6.81 4.70 7.93 3.68 1.44 0.98 0.30 0.12 100.29 0.30 28 519 23 176 13 452 63 66 50

27-27 1164 55.74 18.18 6.86 4.77 7.92 3.71 1.41 0.98 0.30 0.13 100.33 0.22 28 511 21 172 11 442 75 62 47

27-27 1437 55.10 18.37 6.92 5.12 8.43 3.54 1.25 0.88 0.25 0.13 100.40 0.27 24 515 20 152 6 430 78 70 46

27-27 1890 54.88 18.33 6.98 5.29 8.52 3.51 1.21 0.90 0.26 0.12 100.07 0.56 27 531 21 150 7 434 83 73 51

27-27 2425 54.38 18.46 7.13 5.47 8.74 3.47 1.07 0.89 0.25 0.13 100.46 0.39 20 543 21 138 7 384 89 58 48

27-27 2657 52.29 18.10 8.27 6.07 9.32 3.43 0.94 1.11 0.32 0.15 99.78 0.49 24 537 33 155 14 400 103 56 54 93

27-27 2917 48.26 17.88 9.23 9.19 11.28 2.69 0.25 0.91 0.12 0.17 99.44 1.41 0 501 21 54 1 133 157 70 34

27-27 2968 55.49 18.80 6.66 4.86 8.35 3.55 1.04 0.90 0.22 0.12 99.66 0.94 20 628 18 118 4 322 77 65 47

28-32 422 71.62 14.71 2.28 0.55 1.77 4.65 3.85 0.40 0.09 0.06 99.52 0.06 109 139 26 261 7 902 2 7 46 6

28-32 458 71.50 14.72 2.29 0.54 1.67 4.42 4.30 0.40 0.09 0.06 99.41 0.34 116 137 30 269 6 914 2 6 41 5

28-32 487 54.63 17.54 8.26 4.92 8.48 3.86 0.79 1.14 0.23 0.15 100.12 <0.01 20 564 23 122 3 340 22 28 80 70

28-32 504 59.13 17.34 6.44 3.42 6.22 4.28 1.73 0.99 0.30 0.13 99.30 0.46 45 426 27 181 9 504 27 36 88 40

28-32 512 58.01 17.24 7.25 3.04 6.93 4.46 1.33 1.28 0.32 0.14 99.40 0.32 36 557 33 167 8 474 11 109 77 31

28-32 688 54.55 17.30 9.00 4.93 8.41 3.45 0.76 1.22 0.21 0.17 99.25 0.18 19 425 26 133 5 283 30 77 87 79

28-32 823 72.02 14.40 2.29 0.43 1.37 4.71 4.20 0.42 0.08 0.06 99.53 0.25 134 105 40 331 11 743 3 10 46 3

28-32 844 72.05 14.41 2.27 0.41 1.34 4.73 4.24 0.41 0.08 0.06 99.49 0.15 131 95 36 323 10 734 2 12 46 4

28-32 1093 55.26 17.47 7.90 4.47 8.62 3.71 1.07 1.11 0.25 0.14 98.76 0.67 35 459 25 136 6 398 24 71 71 63

28-32 1216 72.63 14.20 2.00 0.54 1.56 4.08 4.45 0.40 0.09 0.05 98.11 1.69 143 120 29 252 9 717 1 13 33 3

28-32 1281 68.49 15.01 3.38 1.39 3.06 3.96 3.92 0.59 0.13 0.07 99.66 0.09 127 175 34 266 10 663 11 18 50 18

28-32 1302 64.01 15.52 5.86 1.80 4.22 4.57 2.61 1.04 0.23 0.13 98.59 1.01 68 318 32 230 8 557 4 21 71 6

28-32 1365 55.63 17.38 7.95 4.11 8.53 3.73 1.11 1.17 0.25 0.14 98.66 0.72 28 589 22 144 6 295 14 93 79 58

28-32 1397 67.86 14.98 3.75 1.63 3.16 4.05 3.71 0.64 0.15 0.08 99.89 0.02 115 197 34 265 9 647 15 25 49 13

28-32 1427 66.75 15.10 4.14 1.93 3.54 4.04 3.53 0.69 0.17 0.09 99.78 0.1 104 216 31 251 9 634 16 26 50 23

28-32 1565 66.54 15.17 4.25 1.91 3.62 4.03 3.51 0.71 0.17 0.09 99.36 0.06 106 209 28 254 9 632 17 33 56 25

28-32 1598 72.26 14.33 2.31 0.59 1.56 3.89 4.52 0.41 0.09 0.05 95.87 3.94 137 125 32 289 9 701 6 27 46 6

28-32 1822 56.89 16.49 8.92 3.11 7.33 4.26 1.21 1.36 0.26 0.17 96.74 3.21 28 446 28 159 6 388 15 52 82 25

28-32 1866 59.62 20.08 5.07 2.50 6.33 3.72 1.56 0.83 0.19 0.10 96.65 3.15 39 459 23 140 4 401 11 74 60 46

28-32 1964 51.53 17.21 9.61 6.13 9.46 3.30 0.76 1.49 0.35 0.17 97.48 2.4 10 352 26 137 8 268 69 78 79 134

28-32 1981 71.39 14.81 2.60 0.69 1.89 3.24 4.66 0.53 0.13 0.06 94.82 4.78 127 142 34 329 9 725 6 18 49 4

28-32 2044 70.89 14.74 2.59 0.77 1.97 3.79 4.53 0.52 0.14 0.06 95.91 3.86 125 147 35 321 10 742 3 16 41 6

28-32 2127 58.98 16.53 7.39 3.28 5.93 4.35 1.78 1.31 0.29 0.17 97.61 1.77 50 361 30 186 8 417 13 76 81 30

28-32 2157 63.72 15.80 5.86 1.42 4.41 4.26 2.92 1.14 0.35 0.11 96.83 2.44 81 274 31 223 11 656 7 38 73 7

28-32 2171 73.06 14.70 2.59 0.72 1.48 2.37 4.45 0.49 0.08 0.07 90.73 8.77 114 117 35 328 10 820 2 17 50 4

28-32 2566 76.96 13.28 1.27 0.00 0.38 3.36 4.59 0.10 0.00 0.05 92.00 7.63 146 15 52 165 15 98 0 2 67 3

28-32 2827 54.82 17.56 8.77 4.45 7.86 3.83 1.09 1.16 0.23 0.24 89.70 9.33 25 449 27 146 6 302 20 57 73 69

28-32 2893 72.56 14.68 2.24 0.45 1.21 3.69 4.53 0.49 0.08 0.06 94.92 4.78 122 108 35 338 9 833 2 12 45 4

28-32 3453 54.38 18.58 7.67 4.34 9.27 3.46 0.73 1.08 0.35 0.13 96.06 3.13 15 479 27 149 9 416 56 56 72 97

28-32 3621 55.44 19.75 6.61 4.29 8.79 3.65 0.27 0.87 0.22 0.12 95.39 4.1 11 658 22 123 6 269 79 79 73 83

28-32 3732 55.79 17.82 8.09 3.77 8.39 3.48 1.03 1.19 0.32 0.14 95.13 4.32 21 455 26 142 7 398 21 76 73 54

28-32 4183 62.73 15.76 6.61 1.65 3.87 4.82 2.63 1.23 0.56 0.15 95.87 3.17 47 376 38 214 9 778 6 29 79 4
Table 2. Major element and EDXRF trace element data p. 11

1

2

A B C D E F G H I J K L M N O P Q R S T U V W X

HOLE DEPTH MAJOR ELEMENTS-Normalized Original Loss on EDXRF trace elements

No. in feet SiO2 Al2O3 FeO* MgO CaO Na2O K2O TiO2 P2O5 MnO Total Ignition Rb Sr Y Zr Nb Ba Ni Cu Zn Cr

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

28-32 4334 60.12 18.41 7.15 2.08 4.01 4.49 2.04 1.27 0.33 0.09 96.91 2.29 44 521 30 151 7 889 12 57 73 41

28-32 4417 54.73 16.93 8.75 5.50 8.38 3.03 1.18 1.11 0.22 0.16 97.22 2.24 26 383 27 108 7 298 74 70 90 65

28-32 4427 61.41 16.34 7.16 2.20 2.88 5.48 2.36 1.40 0.62 0.16 97.49 1.84 45 364 44 225 11 750 4 12 92 4

36-28 443 58.51 17.40 6.38 3.83 7.35 3.93 1.42 0.88 0.17 0.12 100.69 0.06 39 453 20 135 5 442 28 59 49

36-28 568 58.65 17.20 7.11 3.32 6.78 4.16 1.45 1.02 0.19 0.12 100.18 0.20 25 465 20 142 6 454 18 60 55

36-28 637 58.56 17.54 6.60 3.52 6.45 4.16 1.69 1.04 0.29 0.14 99.94 0.84 35 428 26 186 9 499 38 40 63

36-28 714 55.03 16.06 10.09 3.59 7.26 4.45 1.17 1.79 0.37 0.18 100.14 0.28 21 413 31 171 8 460 17 114 74

36-28 836 52.76 16.24 9.99 5.25 9.22 3.48 0.95 1.58 0.34 0.19 100.23 0.37 11 342 31 169 5 335 43 84 65

36-28 882 50.39 17.27 10.09 6.29 9.73 3.42 0.65 1.60 0.38 0.18 100.14 <0.01 13 424 24 145 8 293 53 88 76 114

36-28 913 50.80 17.67 9.63 6.14 9.45 3.46 0.75 1.54 0.38 0.17 100.08 <0.01 10 422 31 150 7 301 70 74 77 105

36-28 1049 55.48 16.85 8.68 3.85 8.25 4.05 1.06 1.36 0.25 0.17 100.09 0.35 22 505 23 135 6 367 18 84 68

36-28 1159 55.64 16.99 8.59 3.89 8.13 4.02 1.03 1.31 0.24 0.16 99.24 0.32 28 520 28 139 4 345 8 86 75 46

36-28 1206 61.04 16.24 6.78 2.63 5.49 4.02 2.25 1.16 0.30 0.10 98.05 1.21 66 325 30 191 8 561 17 57 77 16

36-28 1277 63.75 15.68 5.39 2.15 4.32 3.92 3.41 1.05 0.23 0.10 98.79 1.54 80 181 41 314 10 618 21 30 55

36-28 1368 60.28 18.33 5.29 3.54 6.62 3.74 1.29 0.64 0.16 0.10 98.78 0.6 27 666 18 117 4 390 35 38 59 43

36-28 1533 58.17 18.41 6.14 4.10 7.23 3.67 1.23 0.76 0.19 0.10 99.01 1.33 28 620 16 115 2 369 53 31 46

36-28 1645 62.45 16.85 5.35 3.57 5.57 3.42 1.84 0.67 0.16 0.12 95.52 4.72 42 403 21 128 6 499 66 29 54

36-28 1726 56.14 16.38 9.49 3.40 7.15 3.89 1.28 1.68 0.39 0.20 96.84 3.70 22 401 30 177 8 455 17 78 77

36-28 1778 70.70 15.68 2.62 1.15 2.75 3.36 3.16 0.40 0.11 0.09 92.77 7.29 133 350 24 178 6 1158 18 5 39

36-28 1787 51.87 21.83 8.66 8.60 5.68 0.86 1.08 1.09 0.09 0.26 82.34 18.2 35 223 17 71 2 432 83 57 58

36-28 1808 49.62 18.03 8.67 8.25 11.57 2.40 0.18 0.98 0.16 0.15 96.85 4.01 4 477 21 89 3 102 127 45 47

36-28 1839 72.87 14.64 2.05 0.91 1.85 1.50 5.80 0.28 0.05 0.04 92.43 7.64 92 179 24 146 9 735 10 4 31

36-28 1887 51.39 17.06 10.24 5.71 8.82 3.45 0.76 1.82 0.43 0.32 96.04 4.58 13 396 33 157 11 295 61 84 63

36-28 1934 75.84 13.74 1.45 0.30 1.82 3.31 3.31 0.15 0.06 0.04 89.68 10.1 96 118 24 136 8 683 8 0 31

36-28 2010 51.01 18.20 10.50 6.02 7.81 3.43 0.64 1.70 0.51 0.17 92.82 6.93 10 408 33 155 10 359 68 65 89 102

45-36 18 64.97 15.77 5.27 1.32 3.29 5.72 2.15 1.01 0.35 0.14 100.16 0.01 44 339 37 268 11 874 2 17 88 4

45-36 59 64.65 15.84 5.38 1.33 3.38 5.75 2.14 1.04 0.35 0.14 99.74 <0.01 47 346 36 262 11 867 5 18 92 4

45-36 260 72.11 14.52 2.22 0.44 1.42 4.68 4.06 0.39 0.09 0.06 98.70 0.86 127 120 36 300 10 750 5 7 44 4

45-36 569 72.30 14.42 2.19 0.42 1.36 4.69 4.10 0.39 0.07 0.06 98.03 1.45 131 107 36 309 10 755 3 8 62 6

45-36 769 50.99 18.10 8.56 7.21 10.55 2.84 0.42 0.99 0.17 0.17 97.61 2.5 9 387 21 99 4 162 86 94 66 133

45-36 828 63.39 16.31 5.59 2.21 4.50 4.47 2.25 0.95 0.23 0.09 97.46 2.19 60 402 31 187 9 525 4 37 66 12

45-36 854 64.17 16.25 5.21 1.82 4.24 4.73 2.34 0.92 0.22 0.10 98.43 0.85 61 398 29 203 8 539 3 49 72 5

45-36 864 66.34 15.99 4.28 1.36 3.25 3.95 3.64 0.86 0.24 0.09 96.78 2.83 80 326 30 226 9 649 3 14 65 6

45-36 866 68.64 16.29 3.60 2.49 2.59 2.19 3.36 0.64 0.11 0.10 89.96 9.89 80 185 26 254 7 538 2 36 66 4

45-36 877 54.21 17.76 7.64 4.80 8.90 3.46 1.35 1.24 0.49 0.14 97.66 1.99 877 751 27 169 11 558 28 51 89 51

45-36 1260 58.31 17.74 6.30 4.07 7.26 3.43 1.60 0.87 0.29 0.12 97.06 2.35 39 474 22 161 8 453 56 50 77 62

45-36 1419 60.99 15.94 7.36 2.28 4.49 5.26 1.82 1.29 0.40 0.17 98.03 1.49 38 339 38 204 11 538 3 36 91 4

45-36 1477 56.30 16.12 9.36 3.36 6.72 4.83 1.20 1.52 0.40 0.18 99.06 0.83 23 397 32 159 8 420 15 81 97 22

45-36 1524 56.34 16.64 8.68 3.01 6.56 5.01 1.28 1.60 0.67 0.19 97.66 1.77 25 430 41 189 10 512 6 23 104 7

45-36 1603 57.35 18.11 7.13 3.48 6.61 3.89 1.74 1.23 0.29 0.17 93.50 5.92 34 398 37 266 11 519 25 36 79 37

45-36 1859 54.72 16.37 9.42 3.63 7.47 4.69 1.07 1.77 0.67 0.19 97.51 2.26 15 422 36 163 8 443 8 31 98 10

45-36 1997 53.89 16.53 10.35 4.11 8.24 4.13 0.59 1.65 0.34 0.18 98.54 1.39 15 437 33 147 8 364 15 105 87 46

45-36 2121 58.03 16.68 7.63 3.52 6.22 4.43 1.69 1.26 0.36 0.17 98.53 1.34 37 363 34 217 11 541 27 43 85 31

45-36 2269 61.46 15.98 6.71 2.17 4.76 4.67 2.45 1.28 0.37 0.15 98.36 1.2 53 289 42 314 12 679 8 20 80 11

45-36 2384 50.41 18.06 9.49 5.92 10.08 3.32 0.62 1.54 0.39 0.18 96.82 3.11 12 422 27 132 8 271 69 61 81 104

45-36 2521 63.30 15.98 5.87 1.96 4.71 3.89 2.78 1.08 0.32 0.10 96.99 2.03 75 295 33 210 8 616 8 34 66 8

45-36 2610 83.48 9.00 0.80 0.00 0.07 1.05 5.50 0.07 0.00 0.02 98.79 0.8 109 10 44 120 11 121 2 1 46 4

45-36 2852 62.04 16.24 6.17 2.03 5.09 4.00 2.72 1.21 0.36 0.13 96.07 3.69 72 297 35 241 8 639 9 25 73 12

45-36 3205 73.08 14.74 1.41 0.30 0.81 2.37 7.08 0.14 0.00 0.06 97.85 1.65 198 56 104 186 20 185 8 6 84 4

45-36 3290 75.84 12.91 1.67 0.35 1.06 4.06 3.90 0.16 0.00 0.05 97.76 1.33 126 72 53 147 18 91 8 5 68 3

45-36 3315 65.42 15.94 5.06 1.24 2.88 5.55 2.50 0.97 0.30 0.13 97.15 2.29 62 344 36 255 10 833 1 9 90 5

45-36 3421 59.52 17.94 5.45 3.93 7.06 3.33 1.70 0.72 0.24 0.11 97.02 2.77 39 505 21 143 8 612 54 28 66 101

45-36 3809 53.29 17.49 7.40 7.25 10.24 2.65 0.54 0.85 0.13 0.14 97.43 2.3 10 227 25 113 4 199 126 54 64 124

45-36 3919 51.73 18.35 8.76 6.50 9.63 3.05 0.30 1.22 0.29 0.17 97.40 2.3 5 427 25 128 7 231 110 45 87 154

45-36 3968 55.52 16.30 9.38 3.58 5.89 5.54 1.23 1.69 0.67 0.20 97.92 1.81 23 437 37 167 8 487 8 36 108 10
Table 2. Major element and EDXRF trace element data p. 12

1

2

A B C D E F G H I J K L M N O P Q R S T U V W X

HOLE DEPTH MAJOR ELEMENTS-Normalized Original Loss on EDXRF trace elements

No. in feet SiO2 Al2O3 FeO* MgO CaO Na2O K2O TiO2 P2O5 MnO Total Ignition Rb Sr Y Zr Nb Ba Ni Cu Zn Cr

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

52-4 368 63.61 16.44 5.38 2.01 4.45 4.38 2.39 0.99 0.23 0.11 98.53 1.99 57 366 28 204 6 572 13 32 59

52-4 382 75.50 13.25 1.26 0.25 0.89 3.87 4.65 0.25 0.05 0.03 99.74 0.31 136 80 30 189 11 776 8 9 27

52-4 628 75.69 13.22 1.25 0.20 0.87 3.84 4.64 0.20 0.05 0.03 99.23 0.45 133 78 27 183 7 785 8 5 23

52-4 709 60.12 18.35 5.29 3.12 6.70 3.85 1.67 0.65 0.15 0.09 99.22 0.71 42 644 16 119 1 405 35 53 47

52-4 816 60.43 18.36 5.27 3.07 6.68 3.93 1.40 0.62 0.15 0.09 99.71 0.02 41 635 18 126 4 406 33 17 38

52-4 958 63.95 16.46 5.28 1.81 4.73 3.97 2.54 0.94 0.24 0.09 100.20 0.45 82 400 27 164 9 699 11 11 57

52-4 1300 52.55 17.98 8.05 5.63 8.78 3.74 1.15 1.55 0.44 0.14 100.42 < 0.01 23 548 23 174 18 339 69 56 49

52-4 1757 57.10 17.85 7.43 3.61 7.08 4.05 1.27 1.13 0.37 0.13 99.42 0.01 27 567 22 148 6 435 16 43 76 31

52-4 2010 55.53 17.49 8.52 3.83 7.31 4.04 1.24 1.41 0.48 0.14 98.71 0.62 23 519 29 156 6 424 12 49 87 28

52-4 2195 54.35 17.57 8.84 4.05 7.98 3.97 1.10 1.49 0.50 0.15 98.85 0.45 23 520 30 152 11 408 21 46 90 50

52-4 2299 52.60 21.96 7.10 2.66 10.21 3.43 0.65 1.03 0.25 0.11 98.68 0.78 15 648 21 113 6 258 32 46 66 63

52-4 2542 50.79 17.34 10.50 5.90 8.84 3.59 0.79 1.64 0.42 0.18 98.00 1.6 16 466 26 138 9 310 37 74 78 93

52-4 3007 50.77 17.96 11.87 4.52 7.65 4.05 0.83 1.79 0.38 0.19 97.59 1.14 12 454 31 141 4 333 29 36 101 13

52-4 3482 56.82 17.72 7.04 5.20 7.45 3.60 0.83 0.94 0.25 0.14 96.66 2.77 43 462 22 123 4 336 80 55 62 126

52-4 3592 63.84 17.37 4.27 2.59 5.40 3.89 1.86 0.56 0.15 0.07 97.73 1.64 47 648 18 109 4 469 22 35 47 23

52-4 3650 55.53 17.91 7.50 5.46 8.01 3.49 0.65 1.02 0.27 0.15 95.69 3.82 23 457 39 113 7 287 85 60 68 123

52-4 3784 56.72 16.69 8.10 4.14 7.50 3.52 1.52 1.27 0.27 0.27 95.53 3.8 38 450 29 148 6 386 17 75 76 46

52-4 3845 56.86 16.61 8.08 4.06 7.57 3.52 1.54 1.27 0.26 0.23 96.00 3.51 35 431 29 142 4 352 17 71 78 42

52-4 3907 61.09 17.22 5.46 3.55 5.93 3.80 1.81 0.77 0.27 0.10 98.16 1.43 43 667 18 142 4 517 39 20 53 47

52-4 3968 59.64 18.26 5.66 3.60 6.94 3.55 1.36 0.69 0.17 0.12 97.52 2.09 70 668 19 114 3 515 38 44 62 45

57-13 429 71.10 14.76 2.49 0.67 1.87 4.46 4.00 0.51 0.10 0.05 99.86 0.25 118 170 34 294 10 807 9 12 31

57-13 580 73.00 14.09 2.02 0.35 1.11 4.34 4.58 0.41 0.06 0.04 98.85 0.50 120 94 38 355 14 905 9 7 32

57-13 729 72.85 14.15 2.06 0.37 1.14 4.66 4.21 0.45 0.07 0.04 99.20 0.26 112 96 37 345 11 917 8 9 32

57-13 796 72.92 14.12 2.05 0.34 1.14 4.47 4.44 0.41 0.06 0.04 99.37 0.27 119 97 39 354 12 914 8 8 33

57-13 815 73.42 14.58 1.98 0.38 1.05 3.43 4.65 0.41 0.05 0.05 94.87 4.09 130 89 36 335 10 782 3 13 41 5

57-13 838 73.37 14.21 1.80 0.30 1.09 3.94 4.81 0.39 0.05 0.04 95.87 3.78 118 101 36 312 13 892 8 5 30

57-13 1180 74.30 13.83 1.62 0.32 1.12 3.63 4.80 0.28 0.05 0.03 95.59 3.72 135 93 32 252 8 806 8 10 22

57-13 1231 76.17 13.10 1.14 0.19 0.78 3.48 4.84 0.22 0.05 0.03 95.56 4.10 133 67 29 172 11 744 10 5 19

57-13 1459 75.87 13.26 1.16 0.19 0.83 3.74 4.69 0.18 0.05 0.03 95.15 4.64 130 74 30 167 12 738 11 5 21

57-13 1682 76.14 13.20 1.09 0.19 0.65 3.22 5.33 0.07 0.06 0.06 90.99 8.59 194 48 38 122 10 578 10 0 39

57-13 2020 76.41 13.14 1.12 0.11 0.66 3.64 4.76 0.06 0.05 0.05 99.06 0.36 136 53 29 131 9 734 9 0 14

57-13 2031 73.80 14.05 1.82 0.12 0.83 4.22 4.66 0.37 0.05 0.07 98.44 0.99 119 82 38 340 11 878 11 9 30

57-13 2389 70.39 14.69 3.07 0.69 2.02 4.32 4.01 0.62 0.15 0.04 98.36 1.12 104 163 37 301 14 812 14 13 42

57-13 2389 69.44 14.77 3.46 0.84 2.28 4.37 3.85 0.72 0.21 0.07 97.87 1.08 98 181 35 293 13 790 2 17 55 5

57-13 2772 71.65 14.18 2.73 1.04 2.39 3.20 4.23 0.36 0.07 0.13 94.07 4.73 126 180 41 124 9 1112 8 17 73 13

57-13 2787 50.58 16.45 11.73 5.79 9.17 3.33 0.48 1.92 0.35 0.20 97.94 2.73 11 422 32 145 6 334 74 61 80

57-13 2802 49.64 16.58 12.07 6.28 8.97 3.29 0.68 1.91 0.38 0.21 99.02 1.43 13 418 31 144 6 325 75 67 85

57-13 2888 51.22 16.58 11.55 5.64 8.29 3.41 0.87 1.85 0.40 0.20 97.10 2.59 23 409 36 159 9 371 52 57 101 37

57-13 2937 55.83 18.95 6.33 4.87 8.18 3.57 1.07 0.85 0.23 0.12 98.31 1.33 17 627 18 119 6 319 67 37 48 79

57-13 2980 55.30 17.85 7.66 4.63 8.38 3.60 1.07 1.09 0.29 0.13 98.29 1.19 25 497 22 135 6 452 31 67 71 65

62-21 558 57.09 16.84 7.71 4.43 7.41 3.75 1.41 1.04 0.17 0.14 99.99 0.11 34 339 30 173 4 375 41 72 55

62-21 677 65.08 16.42 5.04 1.32 3.82 4.53 2.47 0.96 0.23 0.12 97.35 2.44 56 368 26 208 8 631 15 30 57

62-21 742 56.98 16.89 8.49 3.37 7.22 4.40 0.88 1.32 0.29 0.17 97.44 2.61 16 423 26 153 5 450 25 76 76

62-21 903 53.59 16.25 10.46 3.96 7.97 4.35 0.96 1.78 0.48 0.20 98.35 1.41 12 430 30 149 6 398 23 80 71

62-21 961 53.30 17.84 10.21 2.91 7.73 4.44 1.28 1.74 0.41 0.13 98.09 1.74 19 462 32 176 10 436 28 79 84

62-21 1022 51.97 17.70 9.78 4.92 8.44 4.17 0.86 1.55 0.42 0.18 97.64 1.9 16 463 30 154 8 346 21 73 76 50

62-21 1051 63.00 16.62 5.86 1.56 4.03 4.93 2.52 1.09 0.30 0.08 98.09 1.60 50 310 38 268 14 591 20 31 56

62-21 1085 65.23 15.42 5.60 1.19 3.04 4.81 3.21 1.02 0.32 0.15 99.18 0.71 75 229 46 343 15 740 16 17 68

62-21 1202 53.52 17.26 9.84 4.26 8.52 3.91 0.68 1.53 0.30 0.17 98.97 1.01 4 446 29 136 4 360 28 100 65

62-21 1354 54.65 16.52 9.45 4.51 7.84 4.00 1.05 1.49 0.32 0.18 99.11 1.08 15 386 31 164 7 381 30 139 52

62-21 1490 52.71 17.33 8.55 5.51 10.34 3.50 0.54 1.13 0.23 0.16 99.59 0.69 9 614 23 122 5 236 33 88 54

62-21 1659 53.44 18.24 6.82 7.09 9.94 2.94 0.56 0.72 0.13 0.12 95.02 5.24 5 481 18 96 4 211 104 46 44

62-21 1720 60.22 18.24 5.71 3.56 7.04 2.95 1.29 0.70 0.22 0.07 94.92 4.73 31 489 19 147 7 666 68 43 49

62-21 2041 56.83 17.00 8.32 4.29 6.86 3.97 0.91 1.35 0.29 0.18 95.01 4.65 13 528 19 137 5 374 19 84 61

62-21 2101 59.90 17.54 5.64 3.90 6.73 3.66 1.55 0.73 0.24 0.11 98.10 1.39 47 506 23 133 6 487 57 27 65 76
Table 2. Major element and EDXRF trace element data p. 13

1

2

A B C D E F G H I J K L M N O P Q R S T U V W X

HOLE DEPTH MAJOR ELEMENTS-Normalized Original Loss on EDXRF trace elements

No. in feet SiO2 Al2O3 FeO* MgO CaO Na2O K2O TiO2 P2O5 MnO Total Ignition Rb Sr Y Zr Nb Ba Ni Cu Zn Cr

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

62-21 2128 56.58 17.01 8.30 3.96 7.92 3.58 0.82 1.35 0.29 0.20 96.14 3.64 24 580 28 144 6 329 12 91 72 28

68-16 520 72.71 14.28 2.05 0.55 1.62 3.97 4.34 0.36 0.08 0.04 98.98 0.30 129 138 31 245 11 818 9 8 29

68-16 549 50.42 16.84 10.71 6.02 10.08 3.22 0.56 1.62 0.32 0.20 100.35 0.29 11 362 31 138 6 318 66 103 75

68-16 628 58.90 16.31 7.60 2.86 5.89 4.51 1.75 1.56 0.46 0.15 100.16 0.05 47 368 32 206 9 517 19 43 74

68-16 753 72.60 14.34 2.12 0.37 1.19 4.47 4.37 0.43 0.07 0.04 98.58 0.27 116 105 38 349 11 930 8 9 36

68-16 828 70.46 15.02 2.81 0.62 1.93 4.63 3.75 0.58 0.12 0.07 99.51 0.21 96 177 33 299 12 907 8 5 41

68-16 1159 75.35 13.32 1.37 0.25 0.94 3.68 4.79 0.22 0.05 0.02 98.49 0.31 139 85 29 201 10 772 11 6 21

68-16 1673 76.14 13.05 1.15 0.20 0.77 3.69 4.74 0.17 0.05 0.03 98.23 1.19 133 73 30 159 9 762 10 4 20

68-16 1739 63.99 16.20 5.53 1.81 4.51 4.22 2.52 0.90 0.22 0.09 98.74 0.75 67 342 27 196 7 696 15 38 59

68-16 1991 58.60 18.18 6.27 3.72 7.42 3.57 1.20 0.76 0.17 0.10 99.15 0.94 32 627 18 116 3 366 61 44 50

68-16 2107 58.30 18.31 6.15 4.05 7.39 3.52 1.24 0.74 0.19 0.10 98.96 1.08 35 640 19 123 8 379 57 52 49

68-16 2345 60.61 18.98 5.79 2.59 5.97 3.52 1.57 0.72 0.14 0.10 95.97 3.55 47 520 22 137 4 501 43 65 60 40

68-16 2360 74.97 13.98 1.40 0.33 0.93 3.28 4.89 0.13 0.05 0.04 95.25 4.23 104 97 25 144 7 854 8 0 41

68-16 2378 75.26 13.59 1.37 0.24 0.89 3.42 5.02 0.13 0.05 0.04 95.82 3.54 103 90 24 142 8 878 9 0 33

68-16 2891 75.76 13.39 1.38 0.00 0.83 4.30 4.11 0.16 0.00 0.06 97.96 0.24 104 89 21 142 5 882 1 0 38 4

86-23 723 58.45 18.71 5.96 3.73 7.46 3.68 1.00 0.73 0.18 0.10 99.55 0.74 24 765 16 113 2 299 40 53 46

86-23 834 58.61 18.66 5.98 3.67 7.43 3.63 1.02 0.73 0.17 0.10 99.28 0.62 24 757 19 115 2 312 39 47 46

86-23 897 58.09 18.82 6.03 3.84 7.61 3.64 0.94 0.75 0.18 0.10 99.48 0.60 24 777 18 115 2 321 41 44 676

86-23 976 73.53 14.81 1.59 0.55 2.00 3.77 3.46 0.22 0.05 0.03 97.41 1.94 111 251 17 151 7 826 8 4 30

86-23 1010 74.00 14.41 1.51 0.42 1.87 3.55 3.95 0.21 0.05 0.03 96.65 2.86 120 234 17 149 6 819 8 4 28

86-23 1064 59.32 19.26 5.25 3.08 7.34 3.45 1.45 0.61 0.15 0.09 98.68 1.35 35 723 17 126 3 391 38 36 45

86-23 1842 57.72 18.42 6.06 4.22 7.59 3.54 1.31 0.80 0.22 0.10 98.90 1.18 33 784 19 141 4 448 53 44 46

86-23 2469 56.41 18.23 7.00 4.03 8.14 3.54 1.14 1.03 0.36 0.13 98.98 1.25 25 746 25 168 7 515 36 45 53

86-23 2766 52.61 16.99 8.98 5.71 8.38 3.74 1.30 1.47 0.66 0.16 98.68 1.48 26 881 27 190 8 589 66 47 62

86-23 2766 52.78 16.91 8.95 5.73 8.19 3.85 1.31 1.46 0.67 0.16 98.55 1.17

86-23 3085 53.41 17.18 9.54 5.05 7.95 3.65 1.00 1.45 0.61 0.15 98.21 1.87 13 537 29 172 9 508 63 50 79

86-23 3415 50.40 16.98 9.26 7.24 10.75 3.07 0.49 1.39 0.26 0.16 94.02 5.95 8 265 30 114 5 148 115 62 75 190

87-24 72A 48.66 18.32 8.13 9.60 11.51 2.48 0.18 0.82 0.13 0.16 100.78 <0.01 1 233 21 73 1 75 163 93 50 200

87-24 72B 50.97 14.63 10.17 7.06 12.11 2.99 0.27 1.39 0.19 0.20 100.20 <0.01 4 225 34 112 5 102 55 161 59 274

87-24 271 74.77 13.91 1.72 0.34 0.84 3.41 4.79 0.16 0.00 0.05 94.33 4.95 134 48 58 162 19 71 5 11 87 3

87-24 321 56.70 16.99 8.07 3.78 7.34 3.79 1.64 1.23 0.33 0.15 98.59 0.94 34 456 27 153 7 490 15 63 83 41

87-24 491 68.83 17.66 3.29 0.36 1.36 3.95 3.95 0.40 0.07 0.11 94.92 4.33 72 140 43 392 12 901 2 22 77 4

87-24 508 52.70 16.96 7.70 8.45 9.46 2.65 1.06 0.73 0.14 0.15 99.89 0.25 24 203 24 105 3 213 177 83 58 275

87-24 552 49.84 17.72 10.33 7.01 9.59 3.31 0.47 1.28 0.26 0.18 100.45 <0.01 5 440 28 102 3 206 81 98 84 97

87-24 623 57.18 20.51 7.40 4.00 5.32 3.29 1.05 0.99 0.11 0.14 94.86 4.73 33 508 26 165 7 465 40 27 71 52

87-24 678 48.30 17.77 9.00 9.27 11.04 2.78 0.32 1.11 0.23 0.17 100.59 <0.01 11 343 29 103 7 126 164 99 65 198

87-24 730 59.26 21.05 7.04 3.51 3.75 2.87 1.39 0.87 0.12 0.13 90.48 9.36 40 328 24 175 8 510 44 50 83 57

87-24 879 49.05 18.61 9.02 8.16 10.52 2.89 0.35 0.97 0.24 0.17 99.86 0.14 9 414 29 91 4 186 156 88 66 153

87-24 910 49.08 18.17 9.12 8.49 10.44 2.93 0.37 0.99 0.24 0.17 100.65 <0.01 11 405 29 89 6 164 136 94 67 151

87-24 1047 71.95 15.71 2.35 0.53 1.12 3.23 4.80 0.24 0.00 0.08 92.53 6.79 101 102 35 270 10 817 0 8 61 4

87-24 1055 62.73 17.07 5.01 2.20 5.21 3.67 2.95 0.80 0.26 0.10 97.79 1.38 68 432 29 186 8 619 8 44 65 11

OWML5 1698 62.88 13.04 8.41 1.94 4.58 3.86 2.62 1.82 0.70 0.14 99.04 0.21 55 340 38 240 9 679 14 114 62 9

OWML5 2466 56.85 17.97 6.78 5.01 7.64 3.67 0.91 0.85 0.19 0.12 99.24 0.15 19 719 19 113 4 285 62 68 64 64

OWML5 2769 57.27 19.16 5.82 4.10 8.13 3.30 1.23 0.68 0.18 0.11 98.76 1.03 29 789 18 112 3 286 42 40 65 40

OWML5 3403 57.72 18.32 6.60 3.05 6.95 4.14 1.59 1.12 0.41 0.10 97.90 1.58 37 584 27 196 11 604 15 45 81 28

OWML5 4000 53.17 17.76 8.47 5.06 8.83 3.76 0.97 1.36 0.46 0.15 99.48 0.15 27 795 31 179 10 399 36 73 78 67
Table 3. Flame photometry and INAA data p. 14

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

A B C D E F G H I J K L M N O P Q R

HOLE DEPTH Flame photometry INAA 

No. in feet Na2O K2O Sc Cr Co Ni Zn As Rb Sr Zr Mo Sb Cs Ba La

Columns E through R, and S through AD, in ppm (except column AB)

17A6 8210 4.91 5 2.5 <16 31.1 0.76 105 214 128 2.8 0.161 5.55 816 17.8

17A6 9620 4.56 28 7.38 183 19.3 <0.4 86 211 129 2.4 0.207 3.03 820 16.3

18-34 540 4.48 1.745 21.4 25 18.2 < 70.0 75 < 2.90 45 600 190 0.25 0.90 520 16.6

18-34 582 3.44 0.753 23.2 114 32.7 110 74 < 2.30 12 854 110 < 0.300 0.44 340 10.6

18-34 622 34 14 26.9 <22 102 <0.9 21 517 129 <3 <0.1 0.89 396 13.2

18-34 677 4.41 1.055 36.5 21 27.1 < 90.0 120 1.10 34 446 < 400 0.16 1.10 420 14.0

18-34 714 3.68 0.939 30.6 110 35 76 91 1.20 22 < 700 190 0.23 0.90 340 14.0

18-34 781 4.51 3.88 9.13 5 6.5 < 40.0 48 6.40 120 209 280 1.2 7.40 779 23.7

18-34 919 4.09 1.866 19.6 17 19.4 < 70.0 71 1.10 57 468 160 < 0.400 2.80 580 17.5

18-34 920 4.18 4.72 3.9 < 2.50 0.45 < 30.0 36 5.20 140 < 120 150 0.98 5.60 784 30.8

18-34 1059 4.72 3.89 8.62 2 4.18 < 40.0 53 5.70 100 204 320 1.0 6.13 897 25.5

18-34 1170 4.61 2.822 15.0 5 11.6 < 60.0 80 2.10 73 298 280 0.53 2.40 780 27.5

18-34 1297 4.18 4.49 4.36 < 1.70 1.5 < 30.0 33 6.90 130 114 180 1.3 7.10 790 24.5

18-34 1568 4.65 3.31 12.4 3 8.89 < 50.0 65 2.00 89 248 310 0.69 4.20 804 27.4

18-34 1630 4.35 4.62 3.89 < 2.60 0.41 < 31.0 40 8.00 130 56 160 1.7 7.48 750 30.1

18-34 2220 4.73 3.57 10 3 6.7 < 50.0 54 5.20 97 261 360 0.84 5.20 870 27.8

18-34 2575 3.84 0.837 25.2 60 29.5 50 86 < 2.20 19 762 93 < 0.300 0.87 320 10.5

18-34 2758 3.07 0.965

18-34 2845 4.97 1.933 10.7 < 1.60 10.7 < 50.0 95.6 < 2.10 42 603 220 < 0.220 1.70 670 20.1

18-34 3237 4.16 0.962 24.3 28 24.3 < 80.0 93.0 < 2.50 19 610 < 290 < 0.310 0.66 380 12.2

18-34 3370 3.47 0.963 22.2 65 30.1 49 86.1 0.84 16 651 < 240 < 0.300 0.56 380 12.3

18-34 3406 3.36 0.602 22.1 88 24.0 < 70.0 77 0.97 9 750 100 < 0.310 0.29 260 8.9

18-34 3478 23.6 83 28.6 51 77 1.02 15 650 108 <3 <0.1 0.60 282 9.47

18-34 3497 3.63 0.752

27-27 527 4.97 2.464 14.07 3 9.32 61 64 410 251 0.275 2.28 619 19.4

27-27 590 7.91 5 3.63 <14 50.8 5.60 101 189 307 <6 0.94 5.75 936 32.3

27-27 756 3.92 1.221 30.1 61 25.5 85 26 540 140 1.04 417 14.9

27-27 1094 3.82 1.431

27-27 1164 3.82 1.396

27-27 1437 3.65 1.249

27-27 1890 3.59 1.218

27-27 2425 3.57 1.071

27-27 2657 26.4 133 34 95 79 21.60 19 530 103 0.33 0.56 292 14.8

27-27 2917 2.72 0.255 36.7 210 46.5 154 76.3 5.40 550 0.47 136 3.06

27-27 2968 3.67 1.019 19.5 84 25.2 74 67.1 1.64 24 690 115 1.42 319 11

28-32 512 25.16 25 18.88 <21 69.8 <0.8 33 597 172 <4 0.159 4.36 457 15.3

28-32 823 6.41 2 2.73 <16 37 2.70 139 92 311 <3 0.74 8.11 715 23.8

28-32 1093 28.6 72 27.6 22 62.8 0.93 30 553 <190 <4 0.14 3.15 388 12.1

28-32 1281 10.69 21 8.38 <13 36.4 4.90 132 184 236 <4 1.04 7.36 655 22.4

28-32 1397 11 19 10.19 19 42.4 5.20 123 217 261 <4 1.16 6.97 646 22.1

28-32 1427 12.31 25 11.81 23 41.8 4.60 114 221 279 2.1 1.1 6.49 614 21.4

28-32 1598 5.39 3 4.6 10 36.5 5.90 144 134 267 3.2 1.38 9.53 730 24.1

28-32 1822 32.2 22 24.7 <30 72.7 <0.7 30 510 200 4.8 0.15 1.49 377 13

28-32 1866 18.9 49 14.2 <30 46.8 1.60 41 508 148 <3 0.22 2.50 392 12.3

28-32 2044 6.65 4 4.24 <18 35.6 8.30 132 161 314 <5 1.76 8.50 728 25.3

28-32 2127 25.9 22 21 <26 86 1.50 50 395 239 <6 0.25 1.86 450 15.3

28-32 2157 15.65 1 13.45 <27 70 1.40 87 290 208 <0.4 0.26 3.32 640 22.5

28-32 2171 6.93 2 2.65 <13 38.7 5.30 121 124 323 2.3 0.987 8.10 818 25.4

28-32 2566 4.54 <1 0.207 <10 53 11.30 160 <30 166 4.3 2.54 13.73 95 42.8

28-32 2827 29.4 64 25.7 25 79 1.62 21 496 150 <3 0.73 10.89 303 11.6

28-32 3453 25.4 96 27.8 61 79 2.49 13 560 157 <2 1.2 1.46 400 16.1

28-32 4334 29.2 33 17.6 <24 76 2.00 43 591 216 <3 0.39 1.31 880 15.8

36-28 443 4.02 1.408

36-28 568 4.26 1.457 22.2 21 21.1 77 33 530 160 0.2 1.42 410 14.1

36-28 637 4.25 1.676

36-28 714 4.52 1.154 33.9 4 25.6 112 24 440 130 0.44 440 15.2

36-28 836 3.61 0.941 38.2 118 33.8 107 23 420 210 0.22 1.16 350 14.1

36-28 882 36.7 123 38.9 63 99 <0.8 10 500 143 <6 <0.1 0.29 212 12.4

36-28 1049 4.09 1.039

36-28 1159 34.4 47 25.9 <40 89 <0.7 25 580 151 <3 0.16 1.00 366 11.5

36-28 1206 21 10 20.2 <28 77 <0.7 75 362 221 <1 0.17 2.44 573 19.9

36-28 1277 4.06 3.34 16.9 14 13.63 67.8 5.90 90 205 290 1.16 5.30 600 21.4

36-28 1368 14.87 54 19.8 54 63 1.21 26 735 94 <3 <0.1 0.74 379 12

36-28 1533 3.71 1.208 16.6 58 22.4 57 70 30 700 120 0.68 373 11.5

36-28 1645 3.36 1.732 13.18 49 18.4 50 65 2.39 48 450 87 0.244 2.80 501 16.3

36-28 1726 3.97 1.248 28.4 11 21.7 101 2.50 27 490 170 0.25 0.98 440 15.8

36-28 1778 3.27 2.891 5.49 3 4.54 50.2 2.70 128 366 148 0.451 8.48 1110 21.4

36-28 1787 0.73 0.879 23.1 88 30.2 44 69.2 3.27 43 240 2.65 459 5.72

Columns C & D in 

weight percent
Table 3. Flame photometry and INAA data p. 15

1

2

A B C D E F G H I J K L M N O P Q R

HOLE DEPTH Flame photometry INAA 

No. in feet Na2O K2O Sc Cr Co Ni Zn As Rb Sr Zr Mo Sb Cs Ba La

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

36-28 1808 2.41 0.187 31.5 204 38.7 104 72 1.39 580 100 6.23

36-28 1839 1.49 5.31 4.18 6 2.33 42.9 0.67 96 183 160 0.55 4.15 706 21.6

36-28 1887 3.42 0.745 33.9 93 31.2 73 100 1.90 15 490 0.19 310 13.7

36-28 1934 3.18 2.99 3.03 < 1.20 0.76 < 30.0 36 0.96 99 98 140 0.57 5.70 690 20.6

36-28 2010 30.2 93 33.2 57 104 1.10 9 466 125 <5 0.24 0.70 375 15.4

45-36 18 16.2 <1 6.39 <23 78 1.50 47 359 279 <1 0.248 2.03 850 22.6

45-36 59 16 1 6.51 <15 74.9 <0.9 46 369 256 <2 0.28 1.97 829 22.5

45-36 569 6.41 2 2.49 <11 58.9 2.60 138 101 335 <4 0.6 8.17 749 24.9

45-36 769 35.3 136 38 79 56.8 <0.6 7 437 141 <4 <0.1 1.20 164 6.31

45-36 828 17 5 13.16 <17 56.4 <0.7 59 426 158 <4 0.168 2.43 531 16.6

45-36 877 22.1 51 24.3 35 85.4 <0.6 40 840 140 <3 0.178 1.92 554 27.1

45-36 1419 21.8 3 12.98 <20 85.4 <0.9 39 365 197 <3 0.16 1.00 566 19.7

45-36 1477 30.8 6 22.8 <25 84 <0.9 25 441 171 <6 <0.2 0.49 435 15

45-36 1859 30.7 3 22.7 <23 95 <0.9 16 491 186 <4 0.12 0.43 441 17.2

45-36 1997 35.6 33 30.3 35 86 2.90 13 480 177 <6 0.12 1.91 352 12.9

45-36 2269 20.8 5 14.51 <20 71.9 2.00 56 323 316 <6 0.63 1.80 657 25.7

45-36 2384 31.8 119 34.9 64 72 1.53 11 500 150 <5 0.18 3.94 264 12.1

45-36 2610 3.1 <0.9 0.187 <8 41.1 4.64 119 <40 124 5.6 8.65 3.56 128 33.6

45-36 2852 18.2 8 12.71 <19 62 1.12 78 340 237 <2 1.67 3.42 615 21.1

45-36 3315 15.72 2 4.94 <18 74.3 1.70 67 365 242 <3 0.68 3.14 839 22.5

45-36 3421 16.2 86 19.3 60 58.9 0.93 39 584 105 <7 0.335 2.06 605 17.9

45-36 3968 29.2 2 20.6 <23 94 <1 28 519 174 <5 0.13 0.67 516 18.1

52-4 368 4.43 2.290 15.8 13 11.92 70.8 1.90 63 373 180 0.42 3.91 585 18.3

52-4 382 4.04 4.64

52-4 628 4.05 4.70 3.90 < 1.30 1.2 < 30.0 32 7.40 140 < 140 170 1.6 7.56 780 25.1

52-4 709 3.97 1.642

52-4 816 4.22 1.382 13.6 13 18.1 30 58 33 710 0.146 0.50 384 11.9

52-4 958 4.12 2.470 13.59 3 11.48 67.7 1.40 84 433 120 0.24 4.95 624 19.5

52-4 1300 3.96 1.138 24.6 95 29.9 73 81 26 590 140 0.71 326 16.9

52-4 2195 27.4 51 27.9 24 101 2.16 22 610 150 <5 <0.2 0.58 428 16.9

52-4 2542 31.4 105 36.9 44 101.5 <0.8 19 540 120 <5 <0.1 <0.1 296 13.6

52-4 3007 25.5 4 41 38 124 4.60 14 509 170 <6 <0.2 0.41 326 12.8

52-4 3650 20.8 139 27.6 83 74 <0.7 39 510 118 <4 0.16 6.72 300 10.3

52-4 3784 28.9 41 24 49 80 1.91 30 481 147 <3 0.29 0.93 368 11.8

52-4 3845 29.1 41 24.3 <40 82 2.15 29 483 144 <7 0.3 1.00 384 12.1

57-13 429 4.66 3.97 6.88 2 3.62 42 4.00 111 175 251 0.8 6.46 775 24

57-13 580 4.57 4.61 6.73 < 2.20 1.9 < 40.0 35 5.80 130 99 330 1.1 7.20 920 26.5

57-13 729 4.86 4.20

57-13 796 4.68 4.49 6.78 < 3.00 1.99 < 40.0 39 4.80 128 87 350 1.2 7.02 957 26.4

57-13 815 6.27 <1 2.37 <12 38 5.30 128 79 344 3.1 1.13 8.50 834 26.4

57-13 838 3.95 4.61

57-13 1180 3.78 4.69 4.77 < 1.70 1.90 < 40.0 29 8.60 142 < 150 230 1.5 9.65 840 24.0

57-13 1231 3.58 4.66

57-13 1459 3.77 4.54 3.64 2 1.05 < 30.0 27 7.20 138 92 180 1.5 7.39 749 24.8

57-13 1682 3.12 4.91 2.70 < 1.60 0.28 < 28.0 38 7.70 206 < 120 96 1.5 8.55 590 30.9

57-13 2020 3.95 4.80 3.17 < 1.10 0.29 < 30.0 29 4.80 141 59 120 0.64 3.76 710 35.9

57-13 2031 4.47 4.69 6.45 < 6.00 1.6 < 40.0 37 4.90 130 < 170 300 1.0 4.40 900 26.9

57-13 2389 4.52 4.00 8.97 4 4.3 < 50.0 51 2.40 99 266 290 0.61 4.80 820 26.7

57-13 2772 7.97 12 6.38 <14 65 6.90 127 184 133 <4 1.42 16.80 1150 27.6

57-13 2787 3.38 0.470

57-13 2802 3.43 0.658 33.1 59 40.9 60 113 18 500 1.34 337 12.1

57-13 2888 32 35 37.9 44 114 <1 18 465 166 <4 <0.1 1.33 380 14.7

62-21 558 4.05 1.386 27.4 73 25.9 79 38 373 140 0.25 1.24 370 11.5

62-21 677 4.62 2.378 14.11 9.22 61.9 1.17 58 392 214 0.25 2.06 576 18.8

62-21 742 4.53 0.859 26.9 19 20.3 93 24 500 0.94 460 14.7

62-21 903 4.54 0.952 33.6 12 26.1 109 4.90 15 520 120 0.28 410 14.9

62-21 961 4.61 1.240

62-21 1051 5.13 2.453

62-21 1085 5.00 3.17 13.8 3 6.94 78 3.40 81 243 320 0.8 3.60 750 26.9

62-21 1202 4.16 0.675

62-21 1353.5 4.19 1.036 31.6 57 28.6 99 2.20 22 460 190 0.24 0.64 379 13.4

62-21 1490 3.52 0.521

62-21 1659 2.86 0.518

62-21 1720 2.94 1.211 15.2 82 17.9 52 60.1 8.10 33 530 0.57 0.95 625 17.4

62-21 2041 3.89 0.851 28 27 21.7 84 3.10 11 580 180 0.22 0.74 366 12.5

62-21 2101 17.4 80 21.2 54 62 1.80 47 537 127 <3 0.087 1.62 481 15.4

62-21 2128 30.4 28 23.3 <22 84 17.50 19 640 <260 <3 0.23 1.77 326 13.1

68-16 520 4.21 4.40 5.77 3 3.25 < 40.0 36 5.70 140 130 260 1.3 7.85 860 25.2

68-16 549 3.42 0.567 41.5 127 38.3 79 110 < 2.60 14 373 < 300 < 0.400 0.61 320 12

68-16 628 4.78 1.773 23.7 10 17.9 < 50.0 87 1.20 52 410 160 0.31 2.40 550 19.2
Table 3. Flame photometry and INAA data p. 16

1

2

A B C D E F G H I J K L M N O P Q R

HOLE DEPTH Flame photometry INAA 

No. in feet Na2O K2O Sc Cr Co Ni Zn As Rb Sr Zr Mo Sb Cs Ba La

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

68-16 753 4.76 4.38 6.90 < 3.10 2.13 < 40.0 38 5.50 123 81 330 1.0 6.85 931 27.2

68-16 828 4.92 3.79 8.45 < 1.70 3.06 < 40.0 44 4.20 103 192 290 0.80 5.07 898 26.7

68-16 1159 3.99 4.83 4.30 < 1.50 1.5 19 29 9.60 150 95 200 1.7 8.79 791 24.8

68-16 1673 3.93 4.70 3.68 < 1.40 1.1 < 31.0 28 7.10 140 55 170 1.5 7.59 770 25.5

68-16 1739 4.49 2.474 14.8 < 4.00 14.7 < 60.0 64 1.70 74 369 230 0.44 3.76 710 20.9

68-16 1991 3.77 1.183 18.6 62 23.7 49 70 3.20 33 717 160 0.21 3.80 400 12

68-16 2107 3.68 1.228 17.7 56 23.1 60 68 1.60 34 814 140 < 0.310 2.10 410 13

68-16 2345 16.4 49 18.1 48 66 9.00 48 589 100 <2 0.292 7.18 519 14.8

68-16 2360 3.39 4.73 3.24 < 0.900 0.946 < 30.0 45.6 2.70 112 91 120 0.68 5.98 857 23.5

68-16 2378 3.49 4.88 3.20 < 1.20 0.769 < 30.0 38 2.60 114 94 130 0.66 5.79 906 23.3

68-16 2891 3.07 1 0.78 <8 40.3 1.42 112 92 117 <2 0.56 3.22 870 23

86-23 723 3.78 0.980

86-23 834 3.81 0.994 16.3 39 20.8 42 65 20 750 0.36 296 9.8

86-23 897 3.77 0.927

86-23 976 3.90 3.40 2.89 2.28 38.2 1.90 108 245 156 0.315 5.76 778 20.3

86-23 1010 3.68 3.89

86-23 1064 3.56 1.407 13.3 8 16.9 40 61.5 32 760 124 1.24 3.97 11.9

86-23 1842 3.69 1.253

86-23 2469 3.59 1.084 20.6 48 21.9 81 1.80 22 820 200 0.157 0.60 495 20.7

86-23 2766 3.83 1.268

86-23 2766 23.4 98 32.1 60 87 <0.8 18 930 190 <4 <0.1 0.32 577 27

86-23 3085 3.71 0.960 21.6 77 30.2 51 101 14 550 180 0.16 0.33 490 21.1

86-23 3415 33 242 39.4 123 75 <0.6 11 267 94 <6 <0.1 0.43 163 7.59

87-24 72A 36.6 233 46.5 179 61 <0.5 <4 256 <160 <5 <0.1 <0.1 <120 3.14

87-24 72B 64 310 41.1 84 88 <1 9 229 150 4.1 <0.1 <0.2 98 5.41

87-24 271 5.48 7 2.03 <13 74.6 16.30 141 45 165 3.7 2.98 10.03 73 21.7

87-24 321 28 32 24.9 <22 89 1.00 33 530 160 <3 0.17 1.07 500 17.3

87-24 491 9.84 2 2.08 <15 76 2.54 84 160 410 <6 0.46 4.75 935 30.6

87-24 552 34.2 103 43.8 95 96 <0.6 8 486 113 <7 <0.3 <0.3 199 7.42

87-24 623 20.4 77 23.8 53 86 1.22 36 585 149 3.1 0.29 4.58 501 17

87-24 678 38.5 237 47.2 177 71 <0.6 6 371 105 <5 <0.1 <0.2 157 6.23

87-24 730 16.3 59 19.6 49 84 1.97 42 384 165 <2 0.24 5.04 503 19.2

87-24 879 33.8 181 45.3 162 77 <0.6 <5 440 84 <5 <0.1 <0.2 185 7.22

87-24 910 34.9 183 44.9 172 79 <0.6 6 410 140 <6 <0.1 <0.2 184 6.55

87-24 1047 7.81 1 1.2 <13 57.8 2.61 115 107 272 <4 0.59 6.74 871 28.3

87-24 1055 15.36 15 13.57 <17 66 1.28 67 497 183 <6 0.27 3.07 626 21
Table 3. Flame photometry and INAA data p. 17

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

A B

HOLE DEPTH

No. in feet

17A6 8210

17A6 9620

18-34 540

18-34 582

18-34 622

18-34 677

18-34 714

18-34 781

18-34 919

18-34 920

18-34 1059

18-34 1170

18-34 1297

18-34 1568

18-34 1630

18-34 2220

18-34 2575

18-34 2758

18-34 2845

18-34 3237

18-34 3370

18-34 3406

18-34 3478

18-34 3497

27-27 527

27-27 590

27-27 756

27-27 1094

27-27 1164

27-27 1437

27-27 1890

27-27 2425

27-27 2657

27-27 2917

27-27 2968

28-32 512

28-32 823

28-32 1093

28-32 1281

28-32 1397

28-32 1427

28-32 1598

28-32 1822

28-32 1866

28-32 2044

28-32 2127

28-32 2157

28-32 2171

28-32 2566

28-32 2827

28-32 3453

28-32 4334

36-28 443

36-28 568

36-28 637

36-28 714

36-28 836

36-28 882

36-28 1049

36-28 1159

36-28 1206

36-28 1277

36-28 1368

36-28 1533

36-28 1645

36-28 1726

36-28 1778

36-28 1787

S T U V W X Y Z AA AB AC AD

 INAA

Ce Nd Sm Eu Tb Yb Lu Hf Ta Au,ppb Th U

33.2 14.9 3.31 0.813 0.436 1.73 0.241 3.72 0.749 <4 8.66 3.26

30.4 13.1 3.15 0.84 0.448 1.85 0.267 3.69 0.965 <4 8.85 3.37

34.2 17 4.34 1.19 0.71 2.3 0.35 4.07 0.490 < 14.0 4.69 1.5

22.4 11 2.94 0.988 0.46 1.5 0.21 2.28 0.250 < 12.0 1.90 0.54

28.2 17.3 4.84 1.525 0.785 2.8 0.407 3.05 0.403 <6 1.95 0.62

30.6 19 5.45 1.66 0.97 3.59 0.53 3.93 0.450 < 12.0 2.00 0.70

31 18 5.06 1.5 0.85 3.1 0.44 3.6 0.530 < 11.0 2.00 0.63

49 24 5.48 1.02 0.95 3.7 0.528 7.28 1.010 < 12.0 12.00 4.3

36 17 4.24 1.07 0.65 2.1 0.29 3.9 0.540 < 10.0 5.27 1.6

61 27 5.74 0.379 1.0 4.1 0.600 5.2 1.170 < 11.0 13.10 4.3

52.5 27 5.68 1.15 0.92 4.08 0.587 8.08 1.080 < 8.00 10.80 4.0

56 26 6.43 1.4 1.0 3.78 0.56 6.83 1.100 < 9.00 7.54 2.6

48.9 22 4.36 0.498 0.76 3.2 0.466 5.3 0.950 < 11.0 13.00 4.5

56 27 6.11 1.32 0.98 3.8 0.56 7.20 1.170 < 9.00 9.08 3.1

61.5 26 5.65 0.392 0.97 4.0 0.595 5.24 1.160 < 11.0 13.00 4.2

57 28 6.03 1.3 1.0 3.9 0.58 7.6 1.100 < 10.0 10.00 3.5

23 13 3.54 1.12 0.58 2.0 0.29 2.4 0.230 < 13.0 1.80 0.61

44.8 24 6.16 1.69 0.88 3.1 0.46 4.39 0.550 < 8.00 3.59 1.1

27 14 4.24 1.29 0.62 2.18 0.33 2.82 0.290 < 19.0 1.30 0.45

26 13 4.00 1.19 0.53 2.2 0.31 2.65 0.270 < 17.0 1.50 0.51

20 8.8 3.19 1.0 0.46 1.7 0.25 2.0 0.650 < 15.0 0.83 0.33

20 12.7 3.39 1.049 0.525 1.82 0.259 2.2 0.252 <5 0.99 0.33

39.1 18.6 4.74 1.15 0.72 2.68 0.388 5.19 0.650 6.70 2.07

56.9 26.1 6.39 1.001 0.943 4.52 0.646 8.55 1.240 11.5 13.53 4.2

31.3 18.3 4.49 1.36 0.689 2.47 0.334 3.4 0.592 2.55 0.93

32.5 15.9 4.35 1.27 0.633 2.15 0.215 2.99 0.625 1.55 0.32

7.9 6 2.24 0.84 0.54 2.42 0.385 1.31 0.111 0.26

22.4 11.5 3.25 0.93 0.518 1.58 0.238 2.41 0.300 1.94 0.35

32.9 18.8 4.48 1.465 0.744 2.53 0.383 3.78 0.541 <5 3.03 0.85

48.7 22.7 5.42 0.841 0.853 4.18 0.599 8.53 1.080 <8 13.96 4.73

25.8 14.9 3.91 1.19 0.635 2.27 0.339 3 0.396 <5 2.58 0.95

45.3 20.8 5 0.914 0.789 3.51 0.5 6.88 0.951 <4 13.97 5.01

45.2 19.9 4.8 0.96 0.739 3.32 0.486 6.83 0.950 <5 12.84 4.62

43.1 17.3 4.58 0.981 0.734 3.3 0.478 6.49 0.900 <4 11.94 3.92

48.1 20.5 4.72 0.773 0.723 3.4 0.491 7.38 1.038 <5 15.60 5.52

28.9 16.8 4.65 1.42 0.795 3.03 0.459 3.87 0.372 <5 2.98 1.2

25.3 13.3 3.46 0.981 0.532 1.93 0.276 3.15 0.391 <8 3.72 1.32

50.9 22.8 5.46 0.935 0.797 3.81 0.543 8.03 1.000 <7 13.87 4.7

33.3 18.3 4.75 1.38 0.856 3.12 0.435 4.51 0.510 <12 4.22 1.24

45.4 25.4 5.89 1.34 0.899 3.32 0.46 5.44 0.830 <5 7.44 2.15

51.2 22.7 5.27 0.845 0.791 3.74 0.535 8.22 1.007 <5 11.40 3.91

86 39 9.39 0.177 1.39 6.46 0.898 6.49 1.310 <6 13.74 4.61

25.5 13.9 3.97 1.24 0.687 2.82 0.395 3.55 0.354 <6 2.93 1.07

33.8 19.4 4.62 1.32 0.689 2.51 0.345 3.38 0.569 <6 1.90 0.57

32.2 18.7 4.75 1.27 0.724 2.73 0.395 3.4 0.411 <6 2.83 0.92

28 13.8 3.63 1.03 0.575 2.18 0.312 3.3 0.405 3.89 1.11

33.5 19.7 5.43 1.71 0.94 3.49 0.487 3.97 0.526 2.16 0.74

31.7 21.9 5.15 1.66 0.96 3.46 0.504 4.09 0.470 1.96 0.49

27.9 16 4.59 1.56 0.84 3.07 0.436 3.18 0.510 <6 1.16 0.27

25.8 14 4.22 1.43 0.705 2.67 0.384 3.15 0.327 <6 2.18 0.8

41 22.8 5.5 1.32 0.827 3.15 0.427 4.76 0.704 <6 6.16 1.93

44.2 22 5.59 1.32 1.04 4.1 0.623 7.55 0.840 9.02 2.81

23.5 12.1 2.88 0.842 0.36 1.16 0.174 2.39 0.316 <6 3.28 0.94

22.9 10.7 2.78 0.85 0.418 1.28 0.189 2.42 0.294 2.69 0.89

31.3 13.4 3.39 0.79 0.51 1.92 0.296 3.12 0.492 4.96 1.5

33.5 21.6 5.3 1.68 0.91 3.48 0.477 4.08 0.550 2.43 0.73

40.4 14.8 3.77 0.77 0.6 2.57 0.345 4.78 0.775 9.06 2.94

13 7.4 2.5 0.89 0.473 1.63 0.236 1.7 0.165 0.72
Table 3. Flame photometry and INAA data p. 18

1

2

A B

HOLE DEPTH

No. in feet

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

36-28 1808

36-28 1839

36-28 1887

36-28 1934

36-28 2010

45-36 18

45-36 59

45-36 569

45-36 769

45-36 828

45-36 877

45-36 1419

45-36 1477

45-36 1859

45-36 1997

45-36 2269

45-36 2384

45-36 2610

45-36 2852

45-36 3315

45-36 3421

45-36 3968

52-4 368

52-4 382

52-4 628

52-4 709

52-4 816

52-4 958

52-4 1300

52-4 2195

52-4 2542

52-4 3007

52-4 3650

52-4 3784

52-4 3845

57-13 429

57-13 580

57-13 729

57-13 796

57-13 815

57-13 838

57-13 1180

57-13 1231

57-13 1459

57-13 1682

57-13 2020

57-13 2031

57-13 2389

57-13 2772

57-13 2787

57-13 2802

57-13 2888

62-21 558

62-21 677

62-21 742

62-21 903

62-21 961

62-21 1051

62-21 1085

62-21 1202

62-21 1353.5

62-21 1490

62-21 1659

62-21 1720

62-21 2041

62-21 2101

62-21 2128

68-16 520

68-16 549

68-16 628

S T U V W X Y Z AA AB AC AD

 INAA

Ce Nd Sm Eu Tb Yb Lu Hf Ta Au,ppb Th U

14 9.3 2.54 0.93 0.483 1.94 0.284 1.61 0.46

40.3 16.9 3.63 0.525 0.54 2.25 0.328 4.08 0.734 9.11 2.75

30.2 16.6 5.12 1.61 0.84 3.06 0.453 3.34 0.530 1.42 0.41

39.7 14 3.46 0.42 0.52 2.2 0.33 3.92 0.950 < 15.0 9.66 3.2

34.9 20.7 5.69 1.76 0.919 3.29 0.447 3.53 0.496 <5 1.39 0.5

48.1 25.8 6.72 1.97 1.02 4.11 0.579 6.39 0.810 <5 4.98 1.58

46.5 26.4 6.59 1.94 1.009 3.79 0.544 6.09 0.788 <5 4.64 1.46

50.7 22.3 5.57 0.807 0.846 4.06 0.584 8.09 1.130 <8 13.18 4.51

14.5 9.8 2.91 0.995 0.567 2.13 0.341 2.1 0.163 7.2 1.00 0.38

34.9 18.3 4.47 1.17 0.663 2.54 0.35 4.55 0.565 <6 5.50 1.95

54.5 27.7 5.65 1.481 0.687 1.87 0.273 3.69 0.759 <5 4.24 1.3

41.9 24.9 6.48 1.72 1.04 3.94 0.564 5.07 0.628 <5 4.03 1.49

33.9 21.3 5.55 1.72 0.951 3.52 0.51 3.91 0.480 11.5 2.23 0.68

38.4 25.6 6.87 2.03 1.074 3.67 0.538 3.86 0.444 <5 1.92 0.69

28 18.1 5.16 1.6 0.85 3.19 0.458 3.43 0.413 <5 1.73 0.53

54.5 29 7.45 1.81 1.16 4.92 0.706 7.65 0.856 <6 5.53 1.76

27.5 16.9 4.64 1.46 0.79 2.82 0.403 3.07 0.485 <5 1.05 0.3

60.6 30.8 7.58 0.129 1.13 5.93 0.845 4.57 0.916 <3 9.47 3.42

44.8 23.5 6.13 1.56 0.932 3.81 0.549 5.92 0.820 <5 7.39 2.66

48.3 25.6 6.7 1.91 0.96 3.6 0.54 6.21 0.800 <7 4.77 1.45

35.3 17.5 3.98 0.971 0.509 1.56 0.238 3.43 0.511 <5 4.83 1.56

40.7 25.3 7.1 2 1.07 3.85 0.549 4.2 0.518 <9 2.13 0.74

37 20 4.66 1.15 0.752 2.64 0.405 4.88 0.620 6.21 2.16

48.4 19 4.30 0.41 0.72 3.1 0.461 5.36 0.980 < 17.0 14.10 4.6

23.2 11.3 2.81 0.81 0.41 1.26 0.208 2.57 0.275 3.16 1.01

39 19.8 4.43 1.017 0.6 1.88 0.291 3.76 0.720 7.94 2.5

35.1 18 4.73 1.39 0.725 2.27 0.338 3.46 1.300 1.82 0.62

37.4 23.2 5.58 1.65 0.824 2.76 0.384 3.54 0.587 <6 1.98 0.64

29.7 20.9 5.33 1.61 0.867 2.97 0.409 3.21 0.529 <5 0.91 0.46

29.3 17.8 5.39 1.7 0.951 3.45 0.464 3.56 0.336 <6 0.77 0.23

22.3 13.3 3.52 1.09 0.566 2.04 0.287 2.65 0.334 <5 2.32 0.77

24.8 14.5 4.04 1.22 0.668 2.38 0.334 3.22 0.410 <5 2.67 0.98

26.9 15.2 4.11 1.27 0.689 2.42 0.333 3.32 0.425 <6 2.86 0.94

47.1 20.5 4.82 0.82 0.75 3.27 0.47 7.44 0.920 11.92 4.34

53 21 5.49 0.73 0.95 3.9 0.57 8.7 1.000 < 18.0 12.50 4.3

51.8 22 5.41 0.77 0.93 3.8 0.588 8.61 1.000 < 14.0 12.50 4.3

51.9 22.3 5.21 0.73 0.789 3.79 0.545 8.5 1.090 <6 13.28 4.43

47 19 4.56 0.57 0.75 3.5 0.513 6.6 < 0.700 < 16.0 14.80 5.3

46.2 18 4.22 0.38 0.72 3.19 0.451 4.90 0.930 < 16.0 13.70 4.8

58.7 25 5.53 0.49 0.91 4.0 0.567 4.27 1.000 < 14.0 11.60 3.6

68 27 6.80 0.64 0.91 3.5 0.503 4.92 0.980 < 16.0 12.30 3.9

51 25 5.45 0.67 0.82 4.0 0.57 8.4 1.000 < 17.0 13.00 4.5

51 25 5.62 1.0 0.96 3.6 0.54 7.17 1.100 < 17.0 11.40 4.1

55.3 25.5 5.72 0.714 0.871 4.09 0.581 4.22 0.942 <6 10.37 3.14

27.2 19.1 5.22 1.68 0.91 3.4 0.475 3.3 0.348 1.01 0.41

32.6 19.8 5.53 1.78 0.943 3.53 0.5 3.72 0.380 <5 1.46 0.47

24.7 14.9 3.98 1.22 0.79 3.09 0.462 4.16 0.369 3.97 1.25

36.6 18.7 4.65 1.14 0.7 2.61 0.38 4.91 0.624 6.21 2.01

30.9 19.2 4.81 1.43 0.79 2.85 0.41 3.48 0.439 2.63 0.9

31.2 19.7 5.7 1.66 0.93 3.27 0.465 3.49 0.409 1.57 0.6

57.2 31.6 7.55 1.69 1.23 4.96 0.745 8.3 1.060 8.63 3.1

29.9 17.2 5.06 1.53 0.88 3.5 0.523 3.91 0.430 1.97 0.67

33.5 15.7 3.74 0.95 0.474 1.23 0.233 3.29 0.455 4.57 1.12

26 16.7 3.9 1.21 0.61 2.1 0.305 2.95 0.407 2.25 0.74

29.6 14.2 3.39 0.94 0.484 1.59 0.217 3 0.410 <5 3.67 0.99

28.2 16.2 4.19 1.39 0.642 2.38 0.329 3.14 0.449 <6 2.31 0.81

48.6 20 4.86 0.702 0.74 3.3 0.468 6.64 0.940 < 14.0 14.90 5.4

25 16 4.88 1.6 0.83 3.5 0.51 3.1 0.300 < 16.0 1.60 < 1.00

40 22 6.25 1.61 0.87 3.6 0.49 4.86 0.560 < 15.0 4.76 1.6
Table 3. Flame photometry and INAA data p. 19

1

2

A B

HOLE DEPTH

No. in feet

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

68-16 753

68-16 828

68-16 1159

68-16 1673

68-16 1739

68-16 1991

68-16 2107

68-16 2345

68-16 2360

68-16 2378

68-16 2891

86-23 723

86-23 834

86-23 897

86-23 976

86-23 1010

86-23 1064

86-23 1842

86-23 2469

86-23 2766

86-23 2766

86-23 3085

86-23 3415

87-24 72A

87-24 72B

87-24 271

87-24 321

87-24 491

87-24 552

87-24 623

87-24 678

87-24 730

87-24 879

87-24 910

87-24 1047

87-24 1055

S T U V W X Y Z AA AB AC AD

 INAA

Ce Nd Sm Eu Tb Yb Lu Hf Ta Au,ppb Th U

52.2 24 5.52 0.809 0.85 3.9 0.566 8.48 1.000 < 16.0 12.10 4.33

51.1 24 5.60 1.01 0.88 3.7 0.533 7.26 0.420 < 17.0 9.97 3.5

46.8 17 4.35 0.49 0.77 3.2 0.45 5.66 0.990 < 14.0 15.90 5.6

47.3 20 4.30 0.40 0.79 3.3 0.462 4.97 1.010 < 14.0 13.90 4.9

41 18 4.75 1.1 0.66 2.6 0.36 4.66 0.650 < 14.0 6.79 2.2

22 11 3.07 0.85 0.39 1.5 0.22 2.5 0.270 < 16.0 2.90 < 1.40

25 11 3.17 0.85 0.36 1.4 0.22 2.5 0.270 < 16.0 2.90 1.0

32.3 14.5 3.63 0.909 0.526 1.95 0.27 3.33 0.495 <6 4.78 1.58

42.9 17 3.75 0.44 0.60 2.6 0.35 4.24 0.773 < 11.0 10.60 3.4

42.3 16 3.80 0.415 0.56 2.5 0.35 4.1 0.730 < 13.0 10.50 3.8

42.4 17.6 3.73 0.463 0.509 2.34 0.342 4.17 0.797 <7 10.57 3.29

20.4 12.4 2.82 0.88 0.42 1.31 0.185 2.23 0.197 1.58 0.68

35.8 14 2.77 0.515 0.36 1.29 0.2 3.7 0.800 11.35 3.63

23.5 11.3 2.98 0.79 0.382 1.2 0.189 2.45 0.283 2.54 0.91

43.2 21.7 5.02 1.32 0.636 2.22 0.302 3.65 0.520 2.40 0.9

59 32.5 7.23 1.9 0.85 2.54 0.358 4.36 0.691 <9 2.43 0.67

44.4 24.3 6.15 1.64 0.85 2.62 0.38 3.8 0.575 1.32 0.59

18.2 13.7 3.97 1.31 0.734 2.65 0.369 2.66 0.269 <5 1.09 0.42

7.9 6.2 2.23 0.885 0.519 2.29 0.33 1.57 0.139 <5 0.28 <0.3

13.9 12.3 3.89 1.337 0.889 3.87 0.551 2.72 0.230 <6 0.53 0.3

53.2 30 9.11 0.213 1.65 7.26 1.02 6.93 1.520 <5 13.92 4.53

35.8 19.6 5.06 1.41 0.708 2.68 0.381 3.68 0.482 <6 2.86 0.96

63.5 31.2 7.37 1.14 1.15 5.4 0.812 10.32 1.080 <6 9.47 2.7

17.9 13.3 3.88 1.36 0.745 2.7 0.381 2.32 0.286 <5 0.35 <0.3

34.5 17.6 4.07 1.22 0.596 2.35 0.339 4.21 0.600 <9 4.97 1.16

15.1 12 3.36 1.2 0.639 2.55 0.369 2.21 0.373 <5 0.40 <0.3

38.4 17.2 4.19 1.034 0.609 2.51 0.35 4.82 0.710 <7 6.80 1.33

16.8 12.7 3.39 1.14 0.631 2.43 0.35 1.94 0.180 <6 0.39 <0.2

16.4 11.4 3.26 1.12 0.622 2.36 0.35 1.95 0.183 <5 0.37 0.24

60 25 5.94 0.843 0.882 4.21 0.618 7.33 1.070 <6 13.28 3.64

41.7 21.9 5.09 1.16 0.7 2.55 0.36 4.74 0.600 13 6.71 2.12
p. 20

Table 4. K-Ar ages on drill core samples

See Figure 1 for map locations and Donnelly-Nolan and Lanphere (2005) for analytical data

Hole No. Depth Age in ka Correlated Unit

in feet

52-4 628 382±8 rhyolite of Grasshopper Flat

57-13 1459 324±7 not at surface

68-16 753 297±6 rhyolite east of Callahan Flow

68-16 1673 397±8 not at surface

All experiments were performed on whole-rock samples of rhyolite