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Geohydrology of Lincoln County

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Logs of Test Holes

Listed in the following pages are logs of 43 test holes in Lincoln County and adjacent Ellsworth County which were drilled by the State Geological Survey during 1948 and 1950. Samples of the material penetrated by the test holes were examined in the field by Kenneth L. Walters, who supervised the drilling and prepared the logs. The samples were subsequently studied microscopically by me.

The test holes are numbered according to the system described on page 11. Locations of the test holes are shown on Plate 3.

10-6-8aa. Sample log of test hole in the NE NE sec. 8, T. 10 S., R. 6 W., 75 feet north and 75 feet west of road intersection, drilled November 1950. Thickness,
feet		 Depth,
feet
Soil and silt, black 2.5 2.5
Cretaceous--Gulfian
Dakota formation
Sandstone rubble, tan to rusty-brown 2 4.5
Sandstone, rusty-brown to tan 5.5 10
Sandstone, rusty-brown, and gray clay 3 13

10-6-17aa. Sample log of test hole in the NE NE sec. 17, T. 10 S., R. 6 W., 100 feet south and 15 feet west of road intersection, drilled November 1950. Surface altitude, 1,334.1 feet; depth to water, 10.71 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, gray-brown (soil) 3 3
Sand, fine, tan to yellow 3 6
Sand, fine, orange 5 11
Sand, fine, orange; contains some gravel 7.5 18.5
Cretaceous--Gulfian
Dakota formation
Clay and shale, varicolored, gray to yellow 4 22.5

10-6-17da. Sample log of test hole in the NE SE sec. 17, T. 10 S., R. 6 W., 0.5 mile south of road intersection and 10 feet west of center of road, drilled November 1950. Surface altitude, 1,317.0 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, brown 5 5
Silt, rusty-brown 2 7
Silt, compact, buff; contains some caliche 4 11
Silt, compact, cream to buff 6 17
Silt, slightly sandy, tan 8 25
Silt, compact, buff 3 28
Silt, tan to white 2 30
Gravel and sand, medium to coarse 4.5 34.5
Cretaceous--Gulfian
Dakota formation
Clay and shale, varicolored, red and gray predominating 5.5 40

10-6-21bb. Sample log of test hole in the NW NW sec. 21, T. 10 S., R. 6 W., 150 feet south of bridge and on east shoulder of road, drilled September 1948. Surface altitude, 1,293.7 feet; depth to water, 4.3 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 3 3
Clay and silt, sandy, tan to brown 14 17
Clay, sandy, greenish-gray 19 36
Gravel, limestone, and sandstone; fine- to medium-grained, rounded 2 38
Cretaceous--Gulfian
Dakota formation
Clay, sandy, tan and gray 2 40
Clay, sandy, light-tan 10 50

10-6-21cb. Sample log of test hole in the NW SW sec. 21, T. 10 S., R. 6 W., 0.4 mile north of road intersection and on east shoulder of road, drilled September 1948. Surface altitude, 1,292.8 feet; depth to water, 9.46 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, black 5 5
Clay, sandy, tan 10 15
Clay, slightly sandy, brownish-tan 8 23
Clay, bluish-black 22 45
Clay, very sandy, fossiliferous, greenish 11 56
Sand, quartz, fine to medium, fossiliferous, greenish 5 61
Gravel, fine to medium; contains rounded limestone 2 63
Cretaceous--Gulfian
Dakota formation
Clay, tan, gray, and red; contains lignite from 68 to 70 feet 7 70

10-6-28bc. Sample log of test hole in the SW NW sec. 28, T. 10 S., R. 6 W., 0.3 mile south of road intersection and on east shoulder of road, drilled September 1948. Surface altitude, 1,306.0 feet; depth to water, 15.18 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 4 4
Clay, very sandy, light-tan 4 8
Clay, very sandy, fossiliferous, light-tan 3 11
Gravel, limestone, fine to coarse, angular, rounded; contains clay 4 15
Gravel, limestone, fine to medium; contains thin clay beds 8 23
Cretaceous--Gulfian
Dakota formation
Clay, gray and red 4 27

10-6-28cb. Sample log of test hole in the NW SW sec. 28, T. 10 S., R. 6 0.35 mile north of road intersection and on east shoulder of road, drilled September 1948. Surface altitude, 1,313.9 feet; depth to water, 13.80 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, brown to black; contains some road fill 8.5 8.5
Clay, sandy, light-gray, tan, and buff 9.5 18
Clay, light-tan and red 7 25
Clay, red; contains a trace of gravel 7 32
Sand, fine to medium quartz 1 33
Cretaceous--Gulfian
Dakota formation
Sandstone, yellowish-brown 7 40

10-10-35ad. Sample log of test hole in the SE NE sec. 35, T. 10 S., R. 10 W., 0.1 mile north of half-section line, drilled August 1948. Surface altitude, 1,481.5 feet, depth to water, 24.30 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay; contains fine tannish-brown sand 5 5
Silt, sandy, tannish-brown 4.5 9.5
Clay, sandy, light-brown 8.5 18
Clay and very fine sand, light-brown 6.5 24.5
Clay, dark-gray 6.5 31
Gravel, fine to medium, "ironstone," and limestone, reddish, and fine sand 6 37
Gravel, fine to medium, "ironstone," and limestone, reddish 7 44
Gravel, coarse, and clay 3 47
Silt and clay, black; contains coarse gravel 7.5 54.5
Silt, soft, gray 3 57.5
Silt, sandy, gray 1.5 59
Gravel, fine to coarse, and limestone fragments 4 63
Cretaceous--Gulfian
Dakota formation
Shale, very sandy, noncalcareous, gray 10 73

11-6-10ad. Sample log of test hole in the SE NE sec. 10, T. 11 S., R. 6 W., 0.25 mile south of road intersection and 30 feet west of center of road, drilled November 1950. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Silt, gray to dark-brown soil 2.5 2.5
Silt, compact, brown 3.5 6
Silt, slightly sandy, red-brown 5 11
Gravel, fine to coarse; contains lenses of buff silt and some coarse sand 8 19
Silt, tan to buff 7 26
Cretaceous--Gulfian
Dakota formation
Sandstone, yellow-brown 3 29
Clay, compact, gray 1 30

11-8-27aa. Sample log of test hole in the NE NE sec. 27, T. 11 S., R. 8 W., 25 feet south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,437 feet, depth to water, 8.80 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, sandy, tan 5 5
Silt and clay, brown 2 7
Clay, sandy, reddish-tan; contains fine limestone gravel, 3 10
Clay, light-tan, and fine limestone gravel 8 18
Gravel, limestone, and clay 2 20
Cretaceous--Gulfian
Dakota formation
Clay, reddish-tan; contains light-gray clay 19 39
Clay, light-gray and reddish-tan (reddish-tan clay may be lag) 11 50

11-8-27ad. Sample log of test hole in the SE NE sec. 27, T. 11 S., R. 8 W., 0.3 mile south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,420.6 feet; depth to water, 12.10 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black to dark-brown 3.5 3.5
Clay, sandy, tan 3 6.5
Clay, silty, sandy, tan and brown 10.5 17
Gravel, limestone, fine to medium, angular; contains clay 7 24
Cretaceous--Gulfian
Dakota formation
Clay, tan and gray 6 30

11-8-36aa. Sample log of test hole in the NE NE sec. 36, T. 11 S., R. 8 W., 65 feet south and 35 feet west of road intersection, drilled November 1950. Thickness,
feet		 Depth,
feet
Cretaceous--Gulfian
Dakota formation
Clay, yellow-orange 4 4
Clay and sandstone, orange to yellow 3 7
Clay and shale, varicolored, predominantly gray 23 30
Clay and shale, varicolored, predominantly rusty-brown 10 40
Clay and shale, varicolored, predominantly gray; contains sandstone lens from 44 to 45 feet 10 50
Clay, light-gray; contains pyrite 4 54
Clay and sandstone, gray to brown 6 60
Sandstone, solid, compact 17 77
Sandstone; contains clay lenses 23 100
Sandstone and clay; contains pyrite and lignite 10 110
Clay, gray; contains sandstone lenses 30 140
Clay, slightly silty, varicolored, red and gray predominating 20 160
Cretaceous--Comanchean
Kiowa shale
Clay and shale, sandy, blue-gray; contains pyrite 30 190
Clay and shale, blue-gray; contains pyrite and gypsum crystals 10 200

12-6-16aa. Sample log of test hole in the NE NE sec. 16, T. 12 S., R. 6 W., 200 feet north of railroad and on west shoulder of road, drilled September 1948. Surface altitude, 1,322.2 feet; depth to water, 19.60 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 4 4
Clay, blocky, tan 9 13
Clay, light-tan 9 22
Clay, compact, light-tan 5 27
Clay, very sandy, tan 3 30
Sand, quartz, very fine; contains clay 17 47
Gravel, fine to medium, rounded; contains medium sand 3.5 50.5
Cretaceous--Gulfian
Dakota formation
Clay, very compact, light-gray 3.5 54

12-6-16da. Sample log of test hole in the NE SE sec. 16, T. 12 S., R. 6 W., 200 feet south of half-section line and on west shoulder of road, drilled August 1948. Surface altitude, 1,324.8 feet; depth to water, 21.14 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, black 3 3
Clay, dark-greenish-gray 4.5 7.5
Clay, light-gray 6 13.5
Clay, very sandy, tan 10.5 24
Gravel, fine to medium, and coarse quartz sand 6 30
Sand and fine gravel, mostly quartz 10 40
Sand, coarse, and fine gravel, quartz (6-inch bed of black clay at 48 feet) 10 50
Gravel and gray clay 4.5 54.5
Cretaceous--Gulfian
Dakota formation
Clay, greenish-black; contains pyrite and lignite 4.5 59

12-6-21aa. Sample log of test hole in the NE NE' sec. 21, T. 12 S., R. 6 W., 30 feet west of center of road and 60 feet south of road intersection, drilled September 1948. Surface altitude, 1,317.9 feet; depth to water, 18.12 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, brown to black 4.5 4.5
Clay, silty, tan 9.5 14
Clay, sandy, tan 9 23
Clay and sand, tan 12 35
Gravel, fine to coarse; contains sand 10 45
Cretaceous--Gulfian
Dakota formation
Clay, bluish-gray and yellow 2 47
Clay, slightly sandy, light-gray 2 49
Sandstone and quartzite, light-gray; contains lignite 5.5 54.5
Clay, very sandy, light bluish-gray, and gray sandstone 15.5 70
Clay, light-bluish-gray 14.5 84.5
Clay, gray and greenish-gray; contains lignite and pyrite; sandy in thin zone 5.5 90
Clay, sandy, gray to bluish-gray 28 118
Clay, light-green and reddish-brown 8 126
Sandstone, fine, light-tan to gray 34.5 160.5
Shale, very fissile, noncalcareous, bluish-black; contains lignite and sandstone 19.5 180
Cretaceous--Comanchean
Kiowa shale
Sandstone, medium coarse, calcite-cemented; contains some cemented calcite in thin hard zones 17 197
Shale, noncalcareous, black and blue-green; contains shell fragments and hard beds 13 210
Shale, noncalcareous, thin, black, and tan limestone 14 224
Shale, noncalcareous, black, and tan limestone; contains white crystal fragments 23 247
Shale, black, greenish-gray, and red 12 259
Permian--Guadalupian
Shale, red; contains black and greenish-gray shale which may be lag 21 280

12-6-21da. Sample log of test hole in the NE SE sec. 21, T. 12 S., R. 6 W., 125 feet south of concrete bridge and on west shoulder of road, drilled August 1948. Surface altitude, 1,317.8 feet; depth to water, 14.66 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, dark-gray to black; contains sand and gravel 4 4
Clay, sandy, tan; contains limestone gravel 2.5 6.5
Clay, sandy, tan; contains silt and gravel 3.5 10
Silt and clay, sandy, reddish-brown 10 20
Clay, sandy, tan; contains limestone gravel 3 23
Gravel, fine to medium, limestone; contains medium quartz sand 14 37
Gravel, medium, and rounded limestone; fragments contain quartz sand 12 49
Cretaceous--Gulfian
Dakota formation
Clay, blue-black and yellow; contains quartzitic sandstone 5 54

12-6-21dd. Sample log of test hole in the SE SE sec. 21 T. 12. S., R. 6 W., 0.1 mile north of road intersection and 8 feet west of center of road, drilled August 1948. Surface altitude, 1,328.2 feet; depth to water, 24.95 feet. Thickness,
feet		 Depth,
feet
Road fill, gravel and silt, dark-brown and gray 2.5 2.5
Quaternary--Pleistocene
Alluvium
Silt, sticky, compact, gray 3.5 6
Silt, fairly compact, slightly sandy, tan 1.5 7.5
Silt, sandy, medium compact, rusty-brown 1 8.5
Gravel, sandstone 5 13.5
Silt, very sandy, compact, buff to rusty-brown 6.5 20
Sand, fine to coarse, tan to buff 11 31
Gravel, fine to coarse; contains coarse sand and silt lag 9 40
Gravel, fine to coarse, sandstone and limestone 5.5 45.5
Cretaceous--Gulfian
Dakota formation
Shale and clay, sandy, blue-gray 1 46.5
Sandstone, very solid, blue-gray; contains lag 1 47.5

12-7-34cd. Sample log of test hole in the SE SW sec. 34, T. 12 S., R. 7 W., 0.4 mile east of road intersection and 5 feet north of center of road, drilled August 1948. Surface altitude, 1,431.1 feet; depth to water, 26.73 feet. Thickness,
feet		 Depth,
feet
Road fill, brown, medium-compact silt 2 2
Quaternary--Pleistocene
Sanborn formation
Silt, slightly sandy, buff to brown 3 5
Silt, fairly loose, slightly sandy, rusty-brown 5 10
Silt, sandy, light-tan to buff; contains caliche 6 16
Gravel, fine to coarse, limestone, and sandstone 8.5 24.5
Cretaceous--Gulfian
Dakota formation
Sandstone, compact, yellow-brown 2.5 27
Sandstone, compact, tan 1.5 28.5
Sandstone and sandy clay, fairly compact, white 1.5 30

12-8-2bc. Sample log of test hole in the SW NW sec. 2, T. 12 S., R. 8 W., 100 feet north of railroad and on east shoulder of road, drilled August 1948. Surface altitude, 1,372.5 feet; depth to water, 3.40 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black; contains clay 4 4
Clay, light-tan to gray 2 6
Clay, light-tan 6 12
Clay, tan 8 20
Sand, quartz, medium 10 30
Sand and fine gravel 20 50
Sand and rounded medium limestone gravel; contains a trace of clay at 53 1/2 feet 10 60
Sand, fine, and rounded medium limestone gravel; contains a trace of lignite at 63 1/2 feet 4.5 64.5
Cretaceous--Gulfian
Dakota formation
Clay, light-gray 5.5 70

12-8-3aa. Sample log of test hole in the NE NE sec. 3, T. 12 S., R. 8 W., 20 feet south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,371.6 feet; depth to water, 7.05 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, black 5 5
Clay, gray and tan, mottled 7 12
Clay, sandy, dark-gray to brown 3.5 15.5
Clay, sandy, light-tan and gray 1.5 17
Sand, very fine, tan 20 37
Sandstone, soft, reddish-tan 7 44
Cretaceous--Gulfian
Dakota formation
Sandstone, "ironstone," reddish-brown 5.5 49.5

12-8-10aa. Sample log of test hole in the NE NE sec. 10, T. 12 S., R. 8 W., 0.1 mile south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,373.4 feet; depth to water, 15.07 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, slightly sandy, black 8.5 8.5
Clay, slightly sandy, tan 8 16.5
Sand, very fine, silty 9 25.5
Sand, quartz, medium to fine 4.5 30
Sand, gravel, and thin beds of clay 14 44
Gravel and fine sand 3 47
Gravel, limestone, medium to coarse, rounded, stained brown; contains sand 6.5 53.5
Cretaceous--Gulfian
Dakota formation
Clay, light-gray 6.5 60

12-8-10da. Sample log of test hole in the NE SE sec. 10, T. 12 S., R. 8 W., 0.45 mile north of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,374.6 feet, depth to water, 13.80 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black; contains clay 4 4
Clay, tan to brown 11 15
Clay and silt, black 5 20
Clay, greenish-gray 11 31
Gravel, fine to coarse; contains coarse sand 8 39
Gravel and sand, medium to coarse 4 43
Cretaceous--Gulfian
Dakota formation
Clay, light-gray 4 47

12-8-22cb. Sample log of test hole in the NW SW sec. 22, T. 12 S., R. 8 W., 0.1 mile north of bridge and east of road in field, drilled August 1948. Surface altitude, 1,404.9; depth to water, 16.95 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 4 4
Clay, buff-tan; contains fine gravel 10 14
Clay, sandy, buff-tan 6 20
Clay, sandy, tan to buff 6 26
Silt, sandy, fossiliferous, black 3 29
Clay, greenish-gray 5 34
Gravel, coarse to medium, rounded, and limestone 5 39
Gravel, fine to medium, sandy; contains black silty clay 2.5 41.5
Cretaceous--Gulfian
Dakota formation
Gravel and clay, gray 1.5 43
Clay, light-gray; contains gray sandstone 2 45

12-10-4cc. Sample log of test hole in the SW SW sec. 4, T. 12 S., R. 10 W., 50 feet east of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,422.0 feet; depth to water, 11.90 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, dark-brown; contains road fill 3.5 3.5
Clay, sandy, tan 3.5 7
Clay, silty; contains gravel 7 14
Clay, sandy, gray; contains coarse gravel 3.5 17.5
Cretaceous--Gulfian
Dakota formation
Clay, buff, tan, gray, and some red; contains "ironstone" gravel 2.5 20

12-10-14dd. Sample log of test hole in the SE SE sec. 14, T. 12 S., R. 10 W., southwest corner of Sylvan Grove fair grounds and on west side of road, drilled August 1948. Surface altitude, 1,429.7 feet; depth to water, 30.30 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 3 3
Clay, tannish-brown; contains coarse sand 5.5 8.5
Sand, fine, and coarse limestone gravel 3 11.5
Clay, silty, light-brown 8 19.5
Clay and some very fine sand 1.5 21
Clay, sandy, tan 8 29
Clay, reddish-tan; contains coarse red sand 6 35
Sand, quartz, medium to coarse, rounded 6 41
Gravel, fine to medium, limestone, and quartz 1 42
Cretaceous--Gulfian
Dakota formation
Clay shale, gray, buff, and reddish-brown 2 44

12-10-16cb. Sample log of test hole in the NW SW sec. 16, T. 12 S., R. 10 W., 20 feet south of half-mile line and 25 feet east of center of road, drilled August 1948. Surface altitude, 1,439.0 feet; depth to water, 18.20 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, black 4 4
Silt, brown 4 8
Clay, silty, tan 8 16
Clay, sandy, light-tan 9 25
Clay, slightly sandy, grayish-tan 5 30
Clay, dark-gray 10 40
Clay, dark bluish-gray 4 44
Clay, greenish-gray 3 47
Gravel and fine to medium rounded limestone 3 50
Sandstone, fine 4 54
Sand, fine to medium, rounded, quartz 2 56
Cretaceous--Gulfian
Dakota formation
Clay, soapy, light-gray 4 60

12-10-17aa. Sample log of test hole in the NE NE sec. 17, T. 12 S., R. 10 W., 25 feet south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,448.8 feet; depth to water, 26.60 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Clay, silty, buff to brown 6.5 6.5
Clay, silty, tan 6.5 13
Gravel, fine to medium; contains sand and clay 7 20
Gravel, iron-stained limestone, fine to medium 10 30
Gravel, limestone, medium to coarse 6 36
Cretaceous--Gulfian
Dakota formation
Clay, slightly sandy, gray 4 40

12-10-20aa. Sample log of test hole in the NE NE sec. 20, T. 12 S., R. 10 W., 20 feet south of road intersection, drilled August 1948. Surface altitude, 1,445.9 feet; depth to water, 22.16 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, very sandy, brown 6 6
Sand, medium to fine, quartz, and feldspar 2 8
Clay, tan, mottled with buff and black 8 16
Clay, sandy, tan, and fine limestone gravel 7 23
Gravel, limestone, and "ironstone"; contains clay 2 25
Cretaceous--Gulfian
Dakota formation
Clay, gray, buff, tan; contains red sand 4.5 29.5

12-10-20ad. Sample log of test hole in the SE NE sec. 20, T. 12 S., R. 10 W., 0.4 mile south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,446.2 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, fine, sandy, black to dark-brown 8 8
Clay, sandy, tan 8 16
Clay and silt, sandy, brown 4 20
Sand, quartz, medium to coarse, and feldspar 8 28
Cretaceous--Gulfian
Dakota formation
Clay, red and light-tan 2 30

12-10-20da. Sample log of test hole in the NE SE sec. 20, T. 12 S., R. 10 W., 300 feet south of the Saline River bridge and on west shoulder of road, drilled August 1948. Surface altitude, 1,437.2 feet; depth to water, 13.35 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay, very sandy, light-tan 6 6
Sand, fine, limestone, and quartz 2 8
Clay, gray 4 12
Gravel, limestone, fine to medium, and dark-gray clay and sand 8 20
Sand, fine to coarse, quartz, and fine gravel 8 28
Clay, dark-gray, and sand 7 35
Gravel, fine to medium; contains quartz sand 15 50
Gravel, fine to coarse; contains quartz sand 13.5 63.5
Cretaceous--Gulfian
Dakota formation
Clay, red and gray 6.5 70

12-10-23aa. Sample log of test hole in the NE NE sec. 23, T. 12 S., R. 10 W., 150 feet south of Saline River bridge and on west shoulder of road, drilled August 1948. Surface altitude, 1,429.4 feet; depth to water, 26.55 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt and clay; grayish-brown 10 10
Clay and very fine sand 5 15
Clay, tan 7 22
Sand, medium, quartz, rounded 7 29
Gravel, medium, rounded, limestone 4 33
Gravel, fine, quartz, rounded 3.5 36.5
Shale, clay, sandy, dark-gray 3.5 40
Cretaceous--Gulfian
Dakota formation
Shale, clay, sandy, bluish-gray streaked with red 4.5 44.5

12-10-23da. Sample log of test hole in the NE SE sec. 23, T. 12 S., R. 10 W., 0.25 mile north of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,434.0 feet; depth to water, 28.50 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Silt, brown to black 4 4
Silt and clay, light-brown 6 10
Clay, sandy, light-brown 4 14
Gravel and clay; contains limestone and quartz gravel 4.5 18.5
Clay, very sandy, tan to buff 2.5 21
Sand, fine to medium, rounded, quartz 4 25
Sand, medium to coarse, rounded, quartz 9 34
Gravel, fine to medium, limestone 2 36
Gravel, medium to coarse, limestone, and gray and red clay shale 1 37
Cretaceous--Gulfian
Dakota formation
Clay shale, noncalcareous, sandy, gray 0.5 37.5

12-10-26aa. Sample log of test hole in the NE NE sec. 26, T. 12 S., R. 10 W., 550 feet south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,472.4 feet; depth to water, 15.09 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Silt, black 4 4
Silt and clay, tan 1.5 5.5
Clay; contains reddish-brown silt 5.5 11
Clay, light-tan grading to light-gray; becomes sandy 4.5 15.5
Cretaceous--Gulfian
Dakota formation
Clay, sandy, buff, gray, and red 3.5 19
Clay, light-gray, red at 21 feet 4 23
Clay, buff 1 24

12-10-29aa. Sample log of test hole in the NE NE sec. 29, T. 12 S., R. 10 W., 0.2 mile south of road intersection and on west shoulder of road, drilled August 1948. Surface altitude, 1,449.6 feet; depth to water, 26.95 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Alluvium
Clay, silty, tan 4 4
Silt and clay, buff to tan 6 10
Clay, silty, tan; contains fine gravel 8 18
Sand, medium to coarse, quartz, and fine to medium limestone gravel 10 28
Cretaceous--Gulfian
Dakota formation
Clay, red and gray 2 30

12-10-29da. Sample log of test hole in the NE SE sec. 29, T. 12 S., R. 10 W., 0.65 mile south of road intersection and on crest of high terrace, drilled August 1948. Surface altitude, 1,496.9 feet; depth to water, 19.15 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Clay, tan; contains sand, limestone, and caliche 5 5
Clay, tan, sand, limestone gravel, and caliche 3.5 8.5
Sand, fine to medium, quartz 10.5 19
Cretaceous--Gulfian
Dakota formation
Clay, gray, tan, yellow, and red 3 22

12-10-32ad. Sample log of test hole in the SE NE sec. 32, T. 12 S., R. 10 W., 100 yards north of concrete bridge and on west shoulder of road, drilled August 1948. Surface altitude, 1,492.0 feet; depth to water, 18.70 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Clay, tan; contains much caliche 3 3
Gravel, limestone, rounded, and caliche 4 7
Gravel, fine, limestone, and fine sand 10 17
Gravel, fine to coarse, limestone, and coarse sand 9 26
Gravel, medium, angular limestone and "ironstone"; contains gray clay 5 31
Cretaceous--Gulfian
Dakota formation
Clay, gray 6 37

13-9-31cc. Sample log of test hole in the SW SW sec. 31, T. 13 S., R. 9 W., 20 feet north of road intersection and on east shoulder of road, drilled September 1948. Surface altitude, 1,674.0 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn formation
Silt, sandy, light-brown 4.5 4.5
Meade formation
Silt and clay, tan to brown 10 14.5
Clay, silty, buff to tan; contains caliche pebbles 15.5 30
Clay, light-tan; contains very fine sand 27 57
Sand, medium to coarse, quartz; contains fine quartz gravel 6.5 63.5
Cretaceous--Gulfian
Dakota formation
Clay, yellow, fine-grained sandstone; noncalcareous 9.5 73

13-10-33dd. Sample log of test hole in the SE SE sec. 33, T. 13 S., R. 10 W., on section line and 0.15 mile west of road intersection, drilled September 1948. Surface altitude, 1,667.5 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Clay and silt, sandy, tan, and gravel 3 3
Clay and coarse sand, tan; contains fine gravel 5 8
Clay, tan, and caliche; contains coarse sand and fine gravel 3 11
Clay, light-tan 6 17
Clay and silt, tan; contains loose sand 3 20
Clay, tan 5 25
Clay, compact, sandy, light-tan 5 30
Clay, sandy, light-tan 5 35
Sand, medium to coarse, rounded, quartz and feldspar 9 44
Sand and gravel, rounded, quartz, and feldspar 5 49
Cretaceous--Gulfian
Dakota formation
Sandstone, fine-grained, light-gray 11 60

13-10-34cc. Sample log of test hole in the SW SW sec. 34, T. 13 S., R. 10 W., 0.2 mile east of road intersection and on section line, drilled September 1948. Surface altitude, 1,669.9 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Clay and silt, tan 10 10
Clay, light-tan 10 20
Clay, reddish-tan, and caliche 6.5 26.5
Clay, sandy, tan 3.5 30
Clay, sandy, light-tan to gray 7 37
Sand, medium, quartz, rounded 10 47
Gravel, fine to medium, and coarse sand 10 57
Gravel, sandstone, reddish-brown 2 59
Cretaceous--Gulfian
Dakota formation
Clay, gray and yellow 1 60

13-10-34dd. Sample log of test hole in the SE SE sec. 34, T. 13 S., R. 10 W., 15 feet west of road intersection, drilled September 1948. Surface altitude, 1,670.0 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Silt and clay, sandy, brown 10 10
Clay and silt, tan; contains caliche 10 20
Clay and silt, sandy, light-tan; contains caliche 12 32
Clay, greenish-tan 8 40
Clay, compact, greenish-tan 7 47
Sand, medium to coarse, and fine gravel, quartz 3 50
Sand, medium to coarse, and fine gravel (slightly coarser than above sample) 12 62
Gravel, sandstone, and reddish-brown sand 4 66
Cretaceous--Gulfian
Dakota formation
Clay, light-gray and yellow 3 69

14-9-4bb. Sample log of test hole in the NW NW sec. 4, T. 14 S., R. 9 W., 0.2 mile east of section line and on south shoulder of road, drilled September 1948. Surface altitude, 1,788.9 feet. Thickness,
feet		 Depth,
feet
Silt, brown 2.5 2.5
Tertiary--Pliocene
Ogallala formation
Limestone, white, algal 1 3.5
Cretaceous--Gulfian
Greenhorn limestone
Clay shale, calcareous, red 4 7.5
Clay shale, calcareous, tan and red 5 12.5
Limestone, soft, white to tan 1.5 14
Clay shale, calcareous, tan and buff 6 20
Clay shale and limestone in alternating thin layers 10 30
Limestone, light-gray; contains calcareous shale 10 40
Clay and shale, calcareous, tan and buff 1.5 41.5
Shale, calcareous, black 5.5 47

14-9-5bb. Sample log of test hole in the NW NW sec. 5, T. 14 S., R. 9 W., 40 feet east of section corner and on south shoulder of road, drilled September 1948. Surface altitude, 1,691.6 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Silt, fine, sandy, brown 3 3
Silt and clay, tan to gray; contains sand 6 9
Clay, sandy, reddish-brown 10 19
Clay, sandy, compact, greenish-gray 4 23
Gravel and yellow clay (gravel is composed mostly of rounded quartz) 6 29
Cretaceous--Gulfian
Greenhorn limestone
Clay shale, yellow 1 30

14-10-2aa. Sample log of test hole in the NE NE sec. 2, T. 14 S., R. 10 W., 30 feet south of section corner and on west shoulder of road, drilled September 1948. Surface altitude, 1,667.9 feet. Thickness,
feet		 Depth,
feet
Quaternary--Pleistocene
Sanborn and Meade formations undifferentiated
Silt, sandy, tan; contains clay 5 5
Clay and silt, tan 4 9
Clay, sandy, reddish-tan 8 17
Clay, sandy, compact, reddish-tan 7.5 24.5
Clay, compact, tan 10.5 35
Clay and caliche, sandy 8 43
Clay, very plastic, light-greenish-gray 5 48
Sand and gravel, fine to medium, quartz 10 58
Gravel, fine to medium, quartz, and fine to medium quartz sand 3 61
Cretaceous--Gulfian
Dakota formation
Clay, gray and red 8 69

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Kansas Geological Survey, Geology
Placed on web March 5, 2009; originally published July, 1952.
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The URL for this page is http://www.kgs.ku.edu/General/Geology/Lincoln/08_logs.html