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Data Series 280

U.S. GEOLOGICAL SURVEY
Data Series 280

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Table 4. Locations, stratigraphic unit designations, and descriptions of outcrop samples analyzed for strontium isotopic compositions from the Nevada Test Site vicinity, Clark, Lincoln, and Nye Counties, Nevada, and Inyo County, California.

[Map numbers are used to locate sites in figure 1. Stratigraphic units are from geologic maps listed in the text. Stratigraphic unit symbols are defined in table 1. Abbreviations: cm, centimeter; m, meter; UTM, Universal Transverse Mercator]

Map No. Sample identification No. Area Locality UTM Easting (m) UTM Northing (m) Strati-graphic unit Description
1 HD–1106 Funeral Mountains Chloride City 510,520 4,061,767 ZYb Calcitic marble.
2 HD–1111 Funeral Mountains Chloride City 510,222 4,061,921 ZYc Coarse-grained, thinly bedded marble.
3 HD–1112 Funeral Mountains Chloride City 510,222 4,061,921 ZYc Coarse-grained, thinly bedded marble.
4 HD–1107 Funeral Mountains Chloride City 510,869 4,060,843 ZYb Coarse-grained, thinly laminated dolomite with graphite layers.
5 HD–1114 Funeral Mountains Chloride City 510,271 4,062,537 ZYc Light grey, fine-grained, saccharoidal marble.
6 HD–1105 Funeral Mountains East of Chloride City 511,883 4,063,433 Zs-c Purple grey dolomite; weathers to reddish brown.
7 HD–1151 Bare Mountain Beatty 521,387 4,081,908 CZw Buff, thinly banded limestone interbedded with quartzite beds.
8 3C–1 Bare Mountain Black Marble Hill 533,950 4,066,327 Cb Not available.
9 HD–212 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Dolomite.
10 HD–214 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Intact dolomite.
11 HD–216 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Intact dolomite.
12 HD–218 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Intact dolomite.
13 HD–219 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Intact dolomite.
14 HD–220 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Bleached/tan dolomite.
15 HD–221 Bare Mountain Black Marble Hill 533,424 4,067,650 Cb Intact dolomite.
16 HD–1154 Bare Mountain Carrara Canyon 528,539 4,074,996 CZw-u Chocolate-brown, well-bedded limestone.
17 HD–1155 Bare Mountain Carrara Canyon 528,613 4,075,089 CZw Chocolate-brown, well-bedded limestone.
18 HD–538 Bare Mountain Carrara Canyon 529,207 4,075,399 Cb-p Very light grey, fine-to-medium grained calcitic marble.
19 HD–539 Bare Mountain Carrara Canyon 529,330 4,075,615 Cb-p Medium-to-dark grey fine-grained mottled dolomite with laminated texture and intervals containing partings of light brown silty dolomite.
20 HD–540 Bare Mountain Carrara Canyon 529,157 4,075,584 Cb-p Mottled dark and light grey, fine-grained dolomite.
21 HD–541 Bare Mountain Carrara Canyon 528,539 4,074,996 CZw-u Light brown, medium grained calcitic marble with minor grains of quartz sand.
22 HD–513 Bare Mountain Chuckwalla Canyon 531,820 4,078,706 Oes Medium grey, recrystallized dolomite with laminae of secondary chert.
23 HD–515 Bare Mountain Chuckwalla Canyon 531,845 4,078,860 Oes Medium light grey, fine-grained recrystallized dolomite.
24 HD–516A Bare Mountain Chuckwalla Canyon 531,844 4,078,891 Sr Medium dark grey, laminated, recrystallized dolomite.
25 HD–517 Bare Mountain Chuckwalla Canyon 531,795 4,078,983 Sr Medium grey, laminated, fine-grained recrystallized limestone.
26 HD–518 Bare Mountain Chuckwalla Canyon 531,794 4,079,106 Sr Medium grey, fine-grained, crystallized dolomite with sparse lenses of chert and calcified macrofossils.
27 HD–519 Bare Mountain Chuckwalla Canyon 531,769 4,079,137 DSlm Very light grey, fine-grained recrystallized dolomite.
28 HD–520 Bare Mountain Chuckwalla Canyon 531,944 4,078,644 DSlm Light grey, fine-grained dolomite with white dolomitic mottling and crinoid debris.
29 HD–533 Bare Mountain Diamond Queen Mine 532,270 4,077,721 Op-av Mottled light-to-medium grey, fine-grained limestone with massive texture and veins of pinkish grey carbonate.
30 HD–534 Bare Mountain Diamond Queen Mine 532,271 4,077,536 Op-g Medium light grey thin-bedded limestone with irregular light-brown silty partings.
31 HD–535 Bare Mountain Diamond Queen Mine 532,372 4,076,951 Cn-s Medium light grey, fine-to-medium grained recrystallized dolomite with massive texture.
32 HD–1415 Bare Mountain Fluorspar Canyon 523,463 4,083,239 Cb-p Unaltered carbonate.
33 HD–1416 Bare Mountain Fluorspar Canyon 523,488 4,083,177 Cb-p Unaltered carbonate.
34 HD–1417 Bare Mountain Fluorspar Canyon 522,993 4,083,084 CZw-l Lower member, Unit D.
35 HD–1418 Bare Mountain Fluorspar Canyon 522,919 4,083,114 CZw-l Lower member, Unit D.
36 HD–1419 Bare Mountain Fluorspar Canyon 522,968 4,083,145 Cb-p Unaltered carbonate.
37 HD–1420 Bare Mountain Fluorspar Canyon 522,893 4,083,237 Cb-p Unaltered carbonate.
38 HD–1421 Bare Mountain Fluorspar Canyon 522,745 4,083,114 CZw-l Lower member, Unit D; Sandy brown limey quartzite.
39 HD–527 Bare Mountain Fluorspar Canyon 528,094 4,082,390 Df Light grey, fine-grained recrystallized dolomite. Brecciated with local cementation of thin silica veinlets.
40 HD–528 Bare Mountain Fluorspar Canyon 527,798 4,081,927 Df Light-to-dark grey, fine-grained dolomite laced with boxwork of white dolomite veinlets.
41 HD–529 Bare Mountain Fluorspar Canyon 526,562 4,081,492 Cb-b Very light grey, fine- to medium-grained calcitic marble.
42 HD–530 Bare Mountain Fluorspar Canyon 526,562 4,081,584 Cb-b Medium light grey, fine-grained dolomitic marble.
43 HD–531 Bare Mountain Fluorspar Canyon 526,636 4,081,677 Cn-h Medium-to-dark grey, fine-grained calcitic marble with thin layers of dolomitic marble and olive-grey chert.
44 HD–542 Bare Mountain Fluorspar Canyon 523,018 4,082,868 CZw-l Pale orange, fine-grained dolomitic marble.
45 HD–543 Bare Mountain Fluorspar Canyon 523,883 4,083,271 Cb-p Light grey, fine-grained dolomitic marble.
46 HD–1152b Bare Mountain Gold Ace Mine 526,504 4,076,346 Zs-d Altered limestone with solution boxworks.
47 HD–1153 Bare Mountain Gold Ace Mine 526,653 4,076,161 Zs-d Buff (weathered) to grey (fresh) siliceous limestone.
48 HD–1142 Bare Mountain Secret Pass 529,582 4,081,471 Op-g Grey, thinly bedded limestone.
49 HD–1144 Bare Mountain Secret Pass 529,359 4,081,439 Df Medium grey, fairly massive, highly fractured limestone.
50 HD–1400 Bare Mountain Sterling Mine 532,006 4,075,440 Cb-b Unaltered carbonate.
51 HD–1401 Bare Mountain Sterling Mine 532,006 4,075,440 Cb-b Unaltered carbonate.
52 HD–1402 Bare Mountain Sterling Mine 532,006 4,075,440 Cb-b Unaltered carbonate.
53 HD–641 Bare Mountain Sterling Mine 532,057 4,075,132 Cb-b Country rock adjacent to “red ore”.
54 HD–537 Bare Mountain Steves Pass 533,101 4,067,802 Zs-d Light brown, fine-to-medium grained recyrstallized dolomite.
55 HD–1146 Bare Mountain Tarantula Canyon 531,147 4,080,121 MDe Thin-bedded limestone consisting of rusty brown layers that are more resistant to weathering than medium grey limestone.
56 HD–1147a Bare Mountain Tarantula Canyon 532,039 4,079,908 Dtc Massive medium grey limestone with reddened zones, especially along fractures and bedding planes.
57 HD–1147b Bare Mountain Tarantula Canyon 532,039 4,079,908 Dtc Massive medium grey limestone with reddened zones, especially along fractures and bedding planes.
58 HD–522 Bare Mountain Tarantula Canyon 532,806 4,080,034 Dtc Very light-grey, fine-grained dolomite.
59 HD–523 Bare Mountain Tarantula Canyon 532,681 4,080,188 Dtc Medium-to-dark grey, fine-grained limestone with sparse chert nodules and minor calcite veins.
60 HD–526 Bare Mountain Tarantula Canyon 530,106 4,080,425 Cc-m Medium grey, fine-grained limestone mottled with light-olive-grey silty dolomite and cut by thin crystalline calcite veins.
61 HD–1138 Bare Mountain Telluride Mine 531,008 4,084,064 Op-av Medium grey, thinly bedded limestone with numerous secondary calcite vieins.
62 HD–1139 Bare Mountain Telluride Mine 530,935 4,083,971 DSlm Massive to brecciated dolomite and limestone.
63 HD–1141 Bare Mountain Telluride Mine 531,234 4,083,387 Op-av Thinly bedded limestone with 2- to 6-cm-thick layers of alternating medium grey and greyish tan beds.
64 HD–1150b Bare Mountain Tungsten Canyon 530,850 4,073,217 CZw Orange-weathering carbonate.
65 HD–546 Striped Hills Outlier on west side 556,896 4,057,913 Dn Light-to-medium grey, fine-grained massive dolomite with mottling and brecciation. Light red ion oxide coatings on fracture surfaces.
66 HD–548 Striped Hills West side 559,200 4,058,576 Op-av Medium- to dark-grey, rusty-weathering, silty limestone.
67 HD–549 Striped Hills West side 559,152 4,058,390 Op-g Medium- to dark-grey limestone containing thin rusty-weathered lenses and fractures.
68 HD–550 Striped Hills West side 559,177 4,058,298 Op-g Medium- to dark-grey, very fine-grained limestone containing tan to pinkish grey silty laminae.
69 HD–551A Striped Hills West side 558,739 4,057,093 Op-g Medium-grey, medium-grained dolomite with red staining on microfractures.
70 HD–553 Striped Hills West side 558,959 4,057,557 Cn-h Medium- to dark-grey, very fine-grained limestone containing fractures with red-stained coatings on fractures.
71 HD–554 Striped Hills West side 558,835 4,057,464 Cb-b Light- and dark-grey, medium grained limestone with reddish iron oxide coatings on fracture surfaces.
72 HD–555 Striped Hills West side 558,168 4,057,028 Cb-b Medium-to-dark grey, very fine-grained limestone containing fractures with red-stained coatings on fractures.
73 HD–556 Striped Hills West side 558,145 4,056,781 Cb-b Light-to-medium grey, fine- to medium-grained limestone with thin fractures of secondary calcite.
74 HD–557 Striped Hills West side 558,099 4,056,288 Cb-p Light-to-medium grey, medium-grained limestone with mottling and buff to light grey coatings on fracture surfaces.
75 HD–558 Striped Hills West side 558,025 4,056,164 Cb-p Mottled medium grey, fine-grained laminated limestone with patches of reddish iron oxide and white crystalline calcite.
76 HD–1422–1 Specter Range Rock Valley Wash 562,215 4,053,605 Cb-b Altered carbonate.
77 HD–1422–2 Specter Range Rock Valley Wash 562,215 4,053,605 Cb-b Altered carbonate.
78 HD–1423 Specter Range Rock Valley Wash 562,191 4,053,512 Cb-b Unaltered carbonate.
79 HD–1426 Specter Range Central 569,490 4,053,907 CZw Rusty-weathering dolomitic quartzite.
80 HD–1427 Specter Range Central 571,247 4,057,681 Cb-b Upper Bonanza King Formation with possible mineralization and thin rusty-colored veins throughout.
81 HD–1428 Specter Range Central 570,884 4,056,569 Cb-b Light grey massive carbonate.
82 HD–1429 Specter Range Central 569,881 4,054,743 Cb-p Lower Bonanza King carbonate.
83 HD–1432 Specter Range Central 570,824 4,048,741 DSu Medium grey, porous carbonate.
84 HD–1434 Specter Range Point of Rocks Area 579,083 4,050,601 Dsv Brecciated carbonate.
85 HD–1435 Specter Range Point of Rocks Area 580,589 4,049,012 Cb Massive white marble.
86 HD–1436 Specter Range Point of Rocks Area 582,172 4,047,178 Cb-b Unaltered carbonate.
87 HD–110–1 Devils Hole Hills Above Devils Hole 563,572 4,031,182 Cb-b Dark grey limestone.
88 HD–471B Devils Hole Hills Above Devils Hole 563,448 4,031,120 Cb-b Unaltered carbonate.
89 GDR–8 Spring Mountains Cold Creek Spring 613,012 4,027,188 Cu Unaltered carbonate.
90 HD–229 Spring Mountains Lower Lee Canyon 634,380 4,031,346 PMbl Well bedded limestone with alternating medium grey and more weather-resistant medium tan layers.
91 HD–230 Spring Mountains Lower Lee Canyon 628,327 4,029,589 PMbl Thick-bedded-to-massive tan limestone.
92 HD–231 Spring Mountains Lower Lee Canyon 627,318 4,028,773 Mm Medium grey, massive limestone.
93 HD–232 Spring Mountains Upper Lee Canyon 620,905 4,022,271 Cb-b Highly fractured, medium grey limestone with some silty layers.
94 HD–233 Spring Mountains Upper Lee Canyon 619,928 4,020,839 Cb-b White -to-light buff, coarse-grained limestone.
95 HD–235 Spring Mountains Upper Lee Canyon 618,762 4,018,574 Cn White-to-light buff, coarse-grained, thinly laminated limestone.
96 HD–236 Spring Mountains Upper Lee Canyon 622,300 4,022,414 Op Medium grey, poorly bedded limestone with high degree of fracturing.
97 HD–238 Spring Mountains Kyle Canyon 637,123 4,015,392 PMb Light grey, thick bedded-to-massive limestone that weathers to light buff.
98 HD–1000 Sheep Range Black Hills 649,365 4,049,285 Dg Light-grey, thickly bedded limestone with tension-gash veins common.
99 HD–999 Sheep Range Black Hills 646,898 4,048,163 Cn-s Black, fine-grained laminated dolomite.
100 HD–995 Pintwater Range Southern end 625,873 4,049,217 Oes Dark-black, fine-grained dolomite with local cherty layers.
101 HD–996 Pintwater Range Southern end 626,955 4,051,698 Op-av Dolomitized limestone with layers of nodular chert.
102 HD–997 Pintwater Range Southern end 628,655 4,054,344 Oes Black, fine-grained laminated dolomite, locally brecciated.
103 HD–998 Pintwater Range Southern end 627,652 4,054,945 Op-av Medium grey limestone with abundant bioturbation and macrofossils.
104 HD–1001 Pintwater Range Northeast side 631,216 4,089,675 Op-av Brownish, locally dolomitized limestone
105 HD–1006 Pintwater Range Northwest side 621,872 4,094,313 Op-av Grey limestone.
106 HD–990 Indian Springs Valley Nellis Air Force Base 619,875 4,051,504 Op-av Dark grey limestone.
107 HD–1002 Indian Springs Valley Central 623,337 4,069,985 Oes Medium grey to tan, coarsely saccharoidal dolomite.
108 HD–991 Indian Springs Valley West side 614,367 4,054,604 Oes Black, fine-grained dolomite.
109 HD–993 Spotted Range Eastern side 610,588 4,058,715 Dsi Grey, medium-grained dolomite.
110 HD–994 Spotted Range Central 607,444 4,061,911 Mj Black, coarse-grained limestone with abundant crinoid debris.
111 HD–1004 Spotted Range Northeast side 618,367 4,070,685 Op-av Grey limestone with local silty laminations.
112 HD–1003 Spotted Range Northeast side 620,405 4,075,645 Dg Dark grey, fine-grained, massive limestone.
113 HD–1007 Yucca Flat North end Eleana Range 574,337 4,115,797 Op-g Medium grey, fossiliferous, thin-bedded limestone.
114 HD–1008 Yucca Flat North end Eleana Range 572,367 4,115,472 Dsv Dark grey, medium-grained, thick-bedded dolomite.

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