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Logs of Test holes and Wells
The logs of 117 test holes and water wells in the North Solomon Valley are given on the following pages. Fifty-five of these are sample logs of test holes drilled by the State Geological Survey in May 1946, 19 are of test holes drilled by the U. S. Bureau of Reclamation and Corps of Engineers along the axis of the proposed Kirwin dam, and 43 are of test holes and wells drilled by private drillers. The samples of test holes drilled by the Geological Survey were collected and studied in the field by J. B. Cooper and were studied in the office by me. Water-level measurements are in feet below land-surface datum.
T. 4 S. || T. 5 S. || T. 6 and 7 S.
| 6-10-5cd. Sample log of test hole in the SE SW sec. 5, T. 6 S., R. 10 W., Mitchell County, 6 feet north of center of road, 0.3 mile east of road intersection. Surface altitude, 1,541.1 feet. Water level, 34.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
 |
Sanborn formation | |||
|
|
Silt, dark-gray, loose (soil) | 3 | 3 |
|
|
Silt, medium compact, brown | 9 | 12 |
|
|
Silt, compact, sandy, light gray-tan | 25 | 37 |
|
|
Sand and gravel, very fine to coarse | 12 | 49 |
|
|
Silt; medium compact, sandy, gray | 7 | 56 |
|
|
Sand and limestone gravel, very fine to coarse | 3 | 59 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, medium, hard, silty, black | 1 | 60 |
| 6-10-8cc. Sample log of test hole in the SW SW sec. 8, T. 6 S., R. 10 W., Mitchell County, 10 feet east of center of road and 0.21 mile north of road intersection. Surface altitude, 1,508.1 feet. Water level, 30.4 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, loose, dark-brown (soil) | 2 | 2 |
|
|
Silt, medium compact, light-gray | 2 | 4 |
|
|
Silt, fairly compact, brown | 13 | 17 |
|
|
Silt, compact, yellow-tan to gray | 4 | 21 |
|
|
Silt, soft, sandy, light-tan | 6 | 27 |
|
|
Silt, light-tan, and very fine to fine quartz sand | 3 | 30 |
|
|
Sand, very fine to medium, and small amount coarse sand and fine to coarse gravel; contains a little gray silt | 7.5 | 37.5 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, medium hard, calcareous, black | 2.5 | 40 |
| 6-10-17bc. Sample log of test hole in the SW NW sec. 17, T. 6 S., R. 10 W., Mitchell County, 7 feet east of center of road and 36 feet north of 1/2-mile line fence. Surface altitude, 1,473.9 feet. Water level 15.7 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, medium loose, black and gray (soil) | 5 | 5 |
|
|
Silt, medium compact, gray to tan | 13 | 18 |
|
|
Silt, soft, sandy, light green-gray and dark-gray | 12 | 30 |
|
|
Sand, very fine to medium quartz, and fine to coarse limestone gravel; contains small amount gray-green silt and shale fragments | 6.5 | 36 5 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, fairly hard, calcareous, black and gray | 3.5 | 40 |
| 6-10-20bb. Sample log of test hole in the NW NW sec. 20, T. 6 S., R. 10 W., Mitchell County, 10 feet east of center of road and 0.15 mile south of road intersection. Surface altitude, 1,469.9 feet. Water level, 22.0 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, dark gray-black | 2 | 2 |
|
|
Silt, medium soft, friable, tan and light-gray | 3 | 5 |
|
|
Silt, compact, plastic, dark-gray | 4 | 9 |
|
|
Silt, soft, light gray-tan | 9 | 18 |
|
|
Silt, gray, and sand, very fine to fine; contains small amount fine to coarse limestone gravel | 11 | 29 |
|
|
Silt, soft, sandy, gravelly, dark gray-blue | 7.5 | 36.5 |
|
|
Sand, fine to coarse, and fine to coarse limestone and quartz gravel | 2.5 | 39 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, medium hard, calcareous, black | 1 | 40 |
| 6-10-20cc. Sample log of test hole in the SW SW sec. 20, T. 6 S., R. 10 W., Mitchell County, 10 feet east of center of road and 0.21 mile north of intersection of road with U. S. Highway 24. Surface altitude, 1,464.7 feet. Water level, 30.9 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, dark-gray to black | 3 | 3 |
|
|
Silt, medium compact, brown and gray | 16 | 19 |
|
|
Silt, soft, tan, and very fine to fine quartz sand | 8 | 27 |
|
|
Sand, very fine to medium, quartz; contains small amount coarse sand and fine limestone gravel | 6 | 33 |
|
|
Sand, fine to coarse, quartz, and a small amount of fine to medium limestone gravel | 6 | 39 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Limestone, very hard, light-gray | 0.3 | 39.3 |
|
|
Shale, hard, fissile, calcareous, black | 0.7 | 40 |
| 6-10-29ba. Sample log of test hole in the NE NW sec. 29, T. 6 S., R. 10 W., Mitchell County, 12 feet west of center of 1/2-mile road and 0.09 mile south of intersection of road with U. S. Highway 24. Surface altitude, 1,464.2 feet. Water level, 80.0 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, plastic, medium compact, silty, gray | 6 | 6 |
|
|
Silt, sandy, light-gray to tan | 9 | 15 |
|
|
Silt, dark-tan to tan; contains fine quartz sand | 3 | 18 |
|
|
Sand, very fine to medium, and tan silt; contains chalk gravel | 5 | 23 |
|
|
Sand, very fine to medium and fine to medium limestone gravel | 9 | 32 |
|
|
Sand, very fine to coarse, and much fine to very coarse limestone and granitic gravel; contains small amount of white to yellow clay | 22 | 54 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, fissile, medium hard, silty, gray, and soft silty, gray-blue shale; contains light-blue soft bentonite | 4 | 58 |
| 6-10-29ca. Sample log of test hole in the NE SW sec. 29, T. 6 S., R. 10 W., Mitchell County, 11 feet west of center of 1/2-mile road, and just south of 1/2-mile fence. Surface altitude, 1,462.8 feet. Water level, 29.7 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, compact, sandy, black and dark-gray (soil) | 3 | 3 |
|
|
Silt, medium compact, coarse, sandy, gray to brown | 8 | 11 |
|
|
Silt, sandy, tan | 7 | 18 |
|
|
Silt, blocky, sandy, dark-brown | 7 | 25 |
|
|
Silt, light-gray, slightly iron-stained; contains very fine to medium sand and a few small snail shells | 2 | 27 |
|
|
Sand, very fine to fine, quartz and feldspar, and a small amount of medium to coarse sand and fine to medium limestone gravel | 3 | 30 |
|
|
Sand and gravel, very fine to coarse chalk, quartz, granitic, and black igneous rock fragments | 6 | 36 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, fissile, hard, dark-gray black, and soft calcareous shale | 4 | 40 |
| 6-10-29cc. Sample log of test hole in the SW SW sec. 29, T. 6 S., R. 10 W., Mitchell County, 12 feet north of center of road and 0.2 mile east of road intersection. Surface altitude, 1,467.1 feet. Water level, 87.6 feet | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, soft, brown and tan; contains a few small snail shells | 10 | 10 |
|
|
Silt, soft, sandy, gray to brown | 21 | 31 |
|
|
Silt, sandy, gray | 9 | 40 |
|
|
Silt, soft, light-gray; contains small amount of very fine to fine sand and a few small snail shells | 3 | 43 |
|
|
Sand, very fine to coarse, quartz and chalk; contains gray silt | 7 | 50 |
|
|
Sand, very fine to coarse; contains a small amount of fine to medium limestone gravel and shale fragments | 2.5 | 52.5 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, hard, fissile, gray-black | 2.5 | 55 |
| 6-10-31ad. Sample log of test hole in SE NE sec. 31, T. 6 S., R. 10 W., Mitchell County, 10 feet west of center of road, 200 feet south of approach to Solomon River bridge. Surface altitude, 1,450.4 feet. Water level, 20.0 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Alluvium (Recent) | |||
|
|
Silt, soft, sandy, dark-brown | 5 | 5 |
|
|
Silt, soft, slightly sandy, gray and brown; contains small snail shells | 11 | 16 |
|
|
Sand, very fine to fine; contains small amount of medium to coarse sand, fine gravel, and gray silt | 5 | 21 |
|
|
Sand and gravel, fine to coarse, poorly sorted; contains limestone and shale pebbles, and a small amount of gray clay | 8 | 29 |
|
|
Silt, soft, sandy, gray-blue; contains fine gravel and many small snail and clam shells | 3 | 32 |
|
|
Sand, fine to coarse, and fine to coarse quartz and limestone gravel | 7 | 39 |
| Cretaceous--Gulfian | ||||
|
Greenhorn limestone | |||
|
|
Shale, hard, silty, dark gray-black | 1 | 40 |
| 6-10-31dd. Sample log of test hole in the SE SE sec. 31, T. 6 S., R. 10 W., Mitchell County, 11 feet west of center of road and 0.2 mile north of road intersection. Surface altitude, 1,485.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation (?) | |||
|
|
Silt, sandy, dark-brown | 2 | 2 |
|
|
Silt, medium compact, slightly sandy, tan and brown | 3 | 5 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Clay shale, weathered, calcareous, gray-yellow; contains fragments of Ostrea shells | 2 | 7 |
|
|
Clay shale, calcareous, light-gray to tan; contains thin medium soft gray limestone | 1 | 8 |
|
|
Clay-shale, calcareous, light-gray; contains shell and chalk fragments | 2 | 10 |
| 6-11-28a1. Driller's log of Missouri Pacific Railroad Co. well 1 in the NE sec. 28, T. 6 S., R. 11 W., Osborne County; drilled by Layne-Western Co., February 1936. Water level, 35 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Soil 2 2 | ||
|
|
Clay | 25 | 27 |
|
|
Sand and gravel | 14 | 41 |
| Cretaceous--Gulfian | ||||
|
Carlile shale | |||
|
|
Shale | 1 | 42 |
| 6-11-28a2. Driller's log of Missouri Pacific Railroad Co. well 2 in the NE sec. 28, T. 6 S., R. 11 W., Osborne County; drilled by Layne-Western Co., 1938. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
|
|
Cinder fill | 5 | 5 |
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Clay, black | 8 | 13 |
|
|
Clay, yellow | 19 | 32 |
|
|
Sand, fine | 1 | 33 |
|
|
Sand, coarse, and gravel | 15 | 48 |
|
|
Sand, fine | 2 | 50 |
|
|
Sand, coarse, and gravel | 5 | 55 |
| Cretaceous--Gulfian | ||||
|
Carlile shale | |||
|
|
Shale | 2 | 57 |
| 6-12-12cc. Sample log of test hole in the SW SW sec. 12, T. 6 S., R. 12 W., Osborne County, 12 feet north of center of road and 0.25 mile east of road intersection. Surface altitude, 1,552.3 feet. Water level, 9.2 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation and alluvium | |||
|
|
Silt, compact, sandy, dark-gray | 3 | 3 |
|
|
Silt, compact, slightly sandy and gravelly, light-gray | 5 | 8 |
|
|
Silt, tan, and fine to medium, yellow-white chalk gravel | 7 | 15 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, noncalcareous, light- to dark-gray, and some tan to yellow | 5 | 20 |
| 6-12-13bc. Sample log of test hole at SW cor. NW sec. 13, T. 6 S., R. 12 W., Osborne County, 7 feet east of center of road and 0.5 mile north of road intersection. Surface altitude, 1,512.9 feet. Water level, 36.7 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, loose, sandy, dark-gray | 4 | 4 |
|
|
Silt, compact, plastic, dark-gray | 4 | 8 |
|
|
Silt, medium compact, light-gray to tan | 4 | 12 |
|
|
Silt, very loose, tan and gray | 6 | 18 |
|
|
Silt, medium compact, slightly sandy, light-gray | 11 | 29 |
|
|
Sand, fine to coarse; contains small amount fine quartz, feldspar, and limestone gravel | 11 | 40 |
|
|
Sand and gravel, fine to coarse; contains yellow, red, and brown clay | 8 | 48 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, plastic, calcareous, dark gray-black | 2 | 50 |
| 6-12-13cc. Sample log of test hole in SW SW sec. 13, T. 6 S., R. 12 W., Osborne County, 5 feet east of center of road, 0.2 mile north of road intersection. Surface altitude, 1,507.1 feet. Water level, 82.0 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, compact, dark-gray | 5 | 5 |
|
|
Silt, medium compact, light-gray to gray | 11 | 16 |
|
|
Silt, fairly loose, light-tan | 12 | 28 |
|
|
Sand, very fine to coarse; contains small amount fine to medium gravel | 7 | 35 |
|
|
Sand, very fine to coarse, and fine limestone gravel, contains gray silt, fragments of gray shale, and gypsum fragments | 4 | 39 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, plastic, noncalcareous, dark-gray | 1 | 40 |
| 6-12-24bb. Sample log of test hole in the NW NW sec. 24, T. 6 S., R. 12 W., Osborne County, 20 feet east of center of trail road and 0.1 mile south of road intersection. Surface altitude, 1,505.0 feet. Water level, 31.3 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, loose, brown | 13 | 13 |
|
|
Silt, compact, slightly sandy, dark-gray | 5 | 18 |
|
|
Silt, very sandy, tan and gray | 12 | 30 |
|
|
Sand, very fine to medium; contains small amount coarse sand, fine to very coarse limestone gravel, and very small amount green and gray clay | 14 | 44 |
|
|
Silt, soft, sandy and gravelly, dark-gray | 6 | 50 |
|
|
Sand, fine to coarse, greenish; contains fine gravel and dark gray-green clay and silt | 9 | 59 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, silty to plastic, calcareous, dark gray-black | 11 | 70 |
| 6-12-24bc. Sample log of test hole in the SW NW sec. 24, T. 6 S., R. 12 W., Osborne County, 42 feet east of center of trail road and 0.4 mile south of road intersection. Surface altitude, 1,505.5 feet. Water level, 33.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, soft, brown to gray; contains small snail shells | 14 | 14 |
|
|
Silt, medium compact, sandy, gray | 6 | 20 |
|
|
Silt, soft, interbedded, brown and gray; contains small snail shells and very small amount of sand | 17 | 37 |
|
|
Sand, very fine to medium quartz, greenish | 13 | 50 |
|
|
Sand, very fine to coarse, greenish; contains some fine gravel, and gray shale fragments | 10 | 60 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, calcareous, dark gray-black | 5 | 65 |
| 6-12-24cc. Sample log of test hole in the SW SW sec. 24, T. 6 S., R. 12 W., Osborne County, 5 feet east of center of road and 0.2 mile north of intersection of road with U. S. Highway 24. Surface altitude, 1,504.0 feet. Water level, 33.5 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, soft, gray-brown | 3 | 3 |
|
|
Silt, compact, interbedded, brown and gray | 10 | 15 |
|
|
Silt, fairly soft, grayish-tan; contains a few small snail shells | 12 | 25 |
|
|
Silt, soft, sandy, grayish-tan; contains small snail shells | 9 | 34 |
|
|
Silt, soft, sandy, gray | 7 | 41 |
|
|
Silt, compact, plastic, dark-gray and soft green; contains very fine sand, and few small snail shells | 12 | 53 |
|
|
Sand, very fine to coarse, quartz, feldspar, and granite; greenish; contains fine limestone gravel, green silt, and gray shale fragments | 7 | 60 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, plastic to silty, calcareous, black | 5 | 65 |
| 6-12-26aa. Sample log of test hole in the NE NE sec. 26, T. 6 S., R. 12 W., Osborne County, 8 feet west of center of road and 0.05 mile south of intersection of road with U. S. Highway 24. Surface altitude, 1,501.8 feet. Water level, 26.4 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, soft, sandy, dark-brown | 4 | 4 |
|
|
Silt, medium compact, gray | 5 | 9 |
|
|
Silt, medium compact, tan | 5 | 14 |
|
|
Silt, medium compact, sandy, yellow-tan | 12 | 26 |
|
|
Sand, very fine to coarse, and tan silt; contains fine limestone gravel | 4 | 30 |
|
|
Sand, very fine to coarse, quartz; contains fine limestone gravels, partly iron-stained | 10 | 40 |
|
|
Sand, very fine to very coarse, and fine to coarse quartz gravel, subangular limestone gravel, and shale fragments | 5 | 45 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, plastic to silty, calcareous, black | 5 | 50 |
| 6-12-26ad. Sample log of test hole in the SE NE sec. 26, T. 6 S., R. 12 W., Osborne County, 8 feet west of center of road, 180 feet north of 1/2-mile fence. Surface altitude, 1,509.2 feet. Water level, 35.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, soft, slightly sandy, brown | 4 | 4 |
|
|
Silt, medium compact, slightly sandy, gray and tan | 12 | 16 |
|
|
Silt, medium compact, sandy, light-gray and iron-stained | 9 | 25 |
|
|
Silt, sandy, gray, tan, and iron-stained | 3 | 28 |
|
|
Sand, very fine to medium, iron-stained; contains small amount coarse sand and fine quartz gravel | 2 | 30 |
|
|
Sand, very fine to coarse; contains some fine quartz, limestone, and granitic gravel | 14 | 44 |
|
|
Sand, fine to coarse, and fine to medium limestone, quartz, and granitic gravel | 8 | 52 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, plastic to silty, calcareous, black | 8 | 60 |
| 6-12-36bb. Sample log of test hole in the NW NW sec. 36, T. 6 S., R. 12 W., Osborne County, 6 feet south of center of road, 350 feet west of 1/4-mile fence. Surface altitude, 1,545.7 feet. Water level, 10.2 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, medium compact, brownish-tan; contains much limestone gravel | 8 | 8 |
|
|
Silt, compact, sandy, gray-tan; contains limestone gravel | 18 | 26 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, clayey, light-gray, partly iron-stained | 6 | 32 |
|
|
Shale, clayey, dark-gray | 8 | 40 |
| 6-13-2cb. Sample log of test hole in the NW SW sec. 2, T. 6 S., R. 13 W., Osborne County, 10 feet east of center of section line road, 0.4 mile north of road intersection. Surface altitude, 1,565.0 feet. Water level, 18.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, loose, sandy, dark-brown | 5 | 5 |
|
|
Silt, medium compact, sandy, dark-gray | 3 | 8 |
|
|
Silt, fairly soft, gray-tan | 4 | 12 |
|
|
Silt, soft, sandy, light-tan; contains small snail shells | 4 | 16 |
|
|
Silt, soft, sandy, tan and rusty-brown | 4 | 20 |
|
|
Gravel, fine to medium, chalk, white; contains fine to coarse sand and gray silt | 7 | 27 |
|
|
Silt, sandy, soft, gray-tan, and fine to coarse chalk gravel | 3 | 30 |
|
|
Sand, very fine to medium, quartz and chalk, gravelly | 5 | 35 |
|
|
Silt, sandy, fairly soft, plastic, dark blue-gray and tan; contains shale fragments | 4 | 39 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, plastic, noncalcareous, dark blue-gray; contains red-brown lignite (?) | 6 | 45 |
| 6-13-3aa. Sample log of test hole in the NE NE sec. 3, T. 6 S., R. 13 W., Osborne County, edge of field near east line of section and 0.3 mile north of intersection of half-section road with section-line road. Surface altitude, 1,655.1 feet. Water level, 24.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Terrace deposits | |||
|
|
Silt, loose, sandy, brown | 16 | 16 |
|
|
Silt, sandy, tan and light gray-white | 3 | 19 |
|
Sanborn formation | |||
|
|
Sand, very fine to coarse; contains small amount of fine limestone and quartz gravels | 11 | 30 |
|
|
Sand, very fine to very coarse; contains fine to medium limestone, quartz, and granitic gravel | 6 | 36 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Clay-shale, plastic to silty, blue-gray | 4 | 40 |
| 6-1S-10aa. Sample log of test hole in the NE NE sec. 10, T. 6 S., R. 13 W., Osborne County, 20 feet south of center of road and 48 feet west of road intersection. Surface altitude, 1,568.0 feet. Water level, 20.2 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, loose, sandy, dark-brown | 3 | 3 |
|
|
Silt, soft, sandy, gray-tan | 8 | 11 |
|
|
Silt, soft, gray | 5 | 16 |
|
|
Silt, sandy, soft, gray; contains many small snail shells | 5 | 21 |
|
|
Silt, soft, gray; contains very fine to coarse sand and fragments of shale and limestone | 8 | 29 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Clay-shale, plastic, dark-gray | 6 | 35 |
| 6-13-10dd. Sample log of test hole at SE cor. sec. 10, T. 6 S., R. 18 W., Osborne County, 9 feet west and 30 feet north of center of crossroads. Surface altitude, 1,643.0 feet. Water level, 35.0 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn and Meade formations | |||
|
|
Silt, loose, soft, sandy, dark-tan | 9 | 9 |
|
|
Silt, sandy, soft, tan; contains fine to medium limestone gravel | 12 | 21 |
|
|
Silt, soft, tan; contains small amount of limestone gravel and caliche | 8 | 29 |
|
|
Silt, sandy, gray; contains fine limestone gravel | 5 | 34 |
|
|
Gravel, very fine to medium, limestone; contains small amount of tan silt | 4 | 38 |
|
|
Silt, sandy, tan; contains fine to coarse limestone gravel | 2 | 40 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, noncalcareous, light blue-gray to dark-gray and yellow-brown; contains iron-stained shale and selenite | 1O | 50 |
| 6-13-11bc: Sample log of test hole at SW cor. NW sec. 11, T. 6 S., R. 18 W., Osborne County, 12 feet east of center of road and 0.5 mile north of road intersection. Surface altitude, 1,583.5 feet. Water level, 25.8 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, soft, sandy, tan | 2 | 2 |
|
|
Silt, medium compact, sandy, black | 3 | 5 |
|
|
Silt, medium compact, gray to gray-tan | 7 | 12 |
|
|
Silt, fairly soft, buff | 8 | 20 |
|
|
Silt, soft, dark-gray | 4 | 24 |
|
|
Silt, light gray-green; contains very fine sand | 5 | 29 |
|
|
Gravel, very fine to coarse, white and iron-stained, limestone; contains fine to coarse sand and some silt | 7.5 | 36.5 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Blue Hill shale member | |||
|
|
Shale, plastic, noncalcareous, dark-gray | 3.5 | 40 |
| 7-10-6aa. Sample log of test hole in the NE NE sec. 6, T. 7 S., R. 10 W., Mitchell County, 10 feet west of center of road and 0.15 mile south of road intersection. Surface altitude, 1,499.5 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, soft, dark-brown to black | 3 | 3 |
|
|
Silt, plastic, medium compact, gray and tan | 2 | 5 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Shale, soft, plastic, light-gray, tan, and reddish; contains a few fragments of Ostrea shells | 5 | 10 |
| 7-10-6da. Sample log of test hole in the NE SE sec. 6, T. 7 S., R. 10 W., Mitchell County, 13 feet west of center of road and 0.85 mile north of road intersection. Surface altitude, 1,493.2 feet. Water level, 6.1 feet. | Thickness, feet |
Depth, feet |
||
|---|---|---|---|---|
| Quaternary--Pleistocene | ||||
|
Sanborn formation | |||
|
|
Silt, soft, sandy, dark-brown | 1 | 1 |
|
|
Silt, medium compact, sandy, tan and gray | 4 | 5 |
| Cretaceous--Gulfian | ||||
|
Carlile shale--Fairport chalky shale member | |||
|
|
Clay shale, soft, silty, tan; contains shell fragments | 1 | 6 |
|
|
Clay shale, tan and light-gray; contains shell fragments | 1 | 7 |
|
|
Clay shale, soft, chalky, light-gray | 3 | 10 |
T. 4 S. || T. 5 S. || T. 6 and 7 S.
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Kansas Geological Survey, Geology
Placed on web May 24, 2014; originally published November 1952.
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