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Scientific Investigations Report 2009–5014

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2009–5014

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Table 5. Lithologies penetrated by wells 1–9, upper Humboldt River basin, northeastern Nevada.

[Well locations are shown in figure 4]

Well No. Nevada log
No.		 Altitude
(feet)		 Total depth
(feet)		 Perforated interval
(feet)		 Depth of top
(feet)		 Lithology
penetrated		 Thickness
(feet)
1* 76997 5,340 112 90–112 0 Topsoil 5
5 Sand and gravel 1
6 Clay 9
15 sand and gravel 13
28 Blue clay
2 23164 5,880 123 102–122 0 Soil 2
2 Gravel 33
35 Sandy Clay 65
100 Sand and gravel
4 28404 5,320 258 220–258 0 Topsoil 2
2 Sand and gravel 34
36 Sand and clay 27
63 Gravel 17
80 Sand and clay 92
172 Sand 18
190 Sand and clay 20
210 Sand 40
250 Sand and clay
5 13830 5,260 157 107–157 0 Soil 2
2 Sandy clay 8
10 Gravel and cobbles 16
26 Sand, gravel, clay 117
143 Gravel 1
144 Clay
6 30036 5,340 170 150–170 0 Soil 4
4 Green clay 23
27 Soft sandstone 118
145 Green clay 3
148 Sand
7 15700 5,240 510 128–510 0 Soil 4
4 Alluvium 106
110 Gravel 2
112 Volcanic rocks 66
178 Shale 77
255 Limestone 7
262 Fractured shale
8 9288 5,200 200 160–180 0 Gravel 15
15 Sandstone 5
20 Sandy clay 140
160 Sand and gravel 2
162 Rock and clay
9 11004 5,090 415 0 Clay and gravel 27
27 Gravel 4
31 Gravel and clay 27
58 Clay and gravel 42
100 Gravel 5
115 Clay and gravel 87
202 Gravel and clay 63
265 Gravel 7
272 Gravel and clay 33
305 Gravel 15
320 Sandy clay 27
347 Clay 15
362 Sandy clay

* No log is available for well 1. The log shown here is for a well about 500 feet to the west.

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