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Riley and Geary County Geology

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Detailed Sections, continued

(31) NW sec. 32, T. 8 S., R. 6 E.

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Winfield limestone (23.7 feet exposed) Feet
Luta(?) and Cresswell limestone members (14.2 feet exposed)
Limestone, light in color, thin beds 12
Limestone, gray crystalline hard, red splotches, echinoid spines 2.2
Grant shale member
Shale, gray fossiliferous 8
Stovall limestone member
Limestone, gray, lighter-colored flint, fossiliferous 1.5
Gage shale (23.3 feet exposed)
Shale, or thin beds of limestone, calcareous, fossiliferous 5.4
Limestone or calcareous shale, yellow 5.5
Shale, gray, green and red near top 7
Shale, gray, some yellow and red 5.4

(32) C sec. 29, T. 8 S, R. 7 E.

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Barneston limestone (45.5 feet exposed) Feet
Fort Riley limestone member
Limestone, "rim rock," light in color, massive in upper part, thinner beds below 10
Oketo shale member
Shale, gray 7.5
Florence limestone member (28 feet)
Limestone, gray 1
Shale, gray 3
Limestone, abundant flint, partly covered, may contain some shale beds 24
Matfield shale (71.9 feet)
Blue Springs shale member (24.9 feet)
Shale, gray calcareous 3
Limestone, gray impure 0.9
Shale, gray, green and chocolate-color in lower part 21
Kinney limestone member
Limestone, argillaceous 1
Wymore shale member
Shale, gray, lower 15 feet mostly covered 46
Wreford limestone (33.9 feet)
Schroyer limestone member (7 feet)
Limestone, gray, weathers white, no flint 1
Limestone, gray flinty, thin beds 6
Havensville shale member (19 feet)
Shale, calcareous, thin beds of limestone near base 6
Shale, gray and yellow 13
Threemile limestone member (7.9 feet)
Limestone, light in color, no flint 0.5
Limestone, flinty 0.4
Limestone, white, no flint 1.2
Limestone, flinty 0.1
Limestone, no flint 2.2
Limestone, flinty 0.5
Limestone, gray, in thin beds 1.5
Shale, gray fossiliferous 0.5
Limestone, gray flinty 1
Speiser shale (17.4 feet)
Shale, gray fossiliferous 2.5
Limestone gray, one bed, fossiliferous 0.4
Shale, gray, red, purple, brown, and green 14.5
Funston limestone (7 feet)
Limestone, light-gray, weathers brown, massive 1.5
Shale, gray, purple bands 3.5
Limestone, brown powdery arenaceous, weathers brown 2
Blue Rapids shale (28.3 feet)
Clay, nodular calcareous, may belong to Funston limestone 3.6
Shale, calcareous, contains iron rust 1.2
Shale, mostly gray, calcareous and varicolored in lower 3 feet 16
Shale., yellow and gray, calcareous 1.5
Shale, yellow and gray, somewhat less calcareous than unit above 6
Crouse limestone
Limestone, poorly exposed, brown crystalline 7
Easly Creek shale (18.4 feet + exposed)
Shale, gray 2
Covered interval, some limestone 5.6
Covered interval, some red shale 10.8

(33) C W line sec. 1, T. 9 S., R. 4 E.

Winfield limestone (18.4 feet exposed) Feet
Luta(?) and Cresswell limestone members
Limestone locally thin beds, but mostly massive, weathering into white blocks, splotches of red, many echinoid spines 5
Grant shale member
Shale, light-gray, thin beds, somewhat calcareous near top, very fossiliferous 12
Stovall limestone member
Limestone, abundance of flint 1.4

(34) NE sec. 1, T. 9 S, R. 4 E.

Winfield limestone (16.5 feet exposed) Feet
Luta(?) and Cresswell limestone members
Limestone, thin beds, somewhat shaly 2
Limestone, massive, rough-weathering, echinoid spines 2
Grant shale member
Shale, gray, fossils abundant, Derbyia crassa 11
Stovall limestone member
Limestone, very flinty 1.5

(35) C W line sec. 12, T. 9 S., R. 4 E.

Doyle shale (47 feet exposed) Feet
Towanda limestone member (10 feet exposed)
Limestone, light-gray, thin to massive beds 5
Limestone, light in color, impure, somewhat brecciated, pitted in middle part 4
Limestone, yellow laminated arenaceous 1
Holmesville shale member (37 feet)
Shale, yellow and green, partly covered 12
Covered interval 25
Barneston limestone
Fort Riley limestone member
Limestone, bed rock in stream  

(36) SW sec. 12, T. 9 S., R. 4 E.

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Doyle shale (28.8 feet exposed) Feet
Towanda limestone member
Limestone, yellow, massive to thin beds 6
Holmesville shale member (22.8 feet)
Shale, yellow, some red near base 11
Limestone, yellow impure 1
Shale, not well exposed 5.4
Covered interval 5.4
Barneston limestone
Fort Riley limestone member (22.9 feet exposed)
Limestone, gray crystalline, fossils as fragments 3
Limestone, light-yellow massive 2
Limestone or limy shale 1.7
Limestone, many pelecypods as casts 0.5
Limestone, light in color, argillaceous, platy 4.5
Limestone, partly covered 0.2
Covered interval 6
Limestone, light in color, pitted, "rim rock" 5

(37) C E SE sec. 6, T. 9 S., R. 5 E.

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Winfield limestone (24.1 feet exposed) Feet
Luta(?) limestone member
Limestone, brown soft, harder near top, many calcite-filled geodes 10
Cresswell limestone member
Limestone, light in color, red splotches, lower part slightly silicified, many echinold spines 2.5
Grant shale member
Shale, yellow and gray, fossils as fragments 10.8
Stovall limestone member
Limestone, light in color, abundant flint 0.8

(38) C N line sec. 12, T. 9 S., R. 5 E.

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Winfield limestone (16 feet exposed) Feet
Cresswell limestone member
Limestone, light in color, many spines, other fossils as fragments 5
Grant shale member
Shale, yellow fossiliferous 10
Stovall limestone member
Limestone, gray flinty 1
Gage shale
Shale, poorly exposed  

(39) Sec. 13, T. 9 S, R. 6 E.

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Barneston limestone (63.6 feet exposed) Feet
Fort Riley limestone member (36.3 feet exposed)
Limestone, thin beds, some shale 10
Shale and shaly limestone 6
Limestone, yellow and gray, thin beds, but somewhat massive near top 6
Limestone, light in color, yellow on fresh surfaces, pitted, massive "rim rock" 3.5
Limestone, thin beds, a small amount of shale 5.4
Limestone, light-gray chalky, thin beds, some shale 5.4
Florence limestone member (27.3 feet exposed)
Limestone, flinty, fossils as fragments 10.8
Partly covered interval, some flinty limestone 5.5
Covered interval 3
Limestone, gray, abundant flint 8

(40) Sec. 17, T. 9 S., R. 6 E.

Doyle shale (22 feet exposed) Feet
Towanda limestone member (6 feet exposed)
Limestone, poorly exposed 3
Marl, yellowish-brown, thin beds of limestone near base 3
Holmesville shale member
Shale, greenish-yellow, some bands of red, few irregular calcareous layers, somewhat marly, some stringers of limestone 16

(41) W line sec. 28, T. 9 S., R. 6 E.

Doyle shale (46.9 feet exposed) Feet
Towanda limestone member
Limestone, yellow, weathers brown, argillaceous 6
Holmesville shale member (40.9 feet)
Shale, yellow calcareous 7.5
Covered interval, some impure limestone at top 11
Covered interval, some brown pitted limestone near base 5.4
Partly covered interval, some brown limestone in middle part, some calcite geodes and a small amount of limonite near base 11
Shale, gray 6
Barneston limestone
Fort Riley limestone member (16 feet exposed)
Limestone, chalky, calcite geodes 4
Limestone, thin beds, platy, chalky, calcite geodes 6
Limestone, yellow on fresh surfaces, somewhat chalky 6

(42) S sec. 35, T. 9 S., R. 7 E.

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Wreford limestone (32.6 feet exposed) Feet
Schroyer limestone member (6.3 feet exposed)
Limestone, flinty 3
Shale, gray calcareous 2.6
Limestone, light in color, tough, powdery 0.7
Havensville shale member
Shale, gray, covered near base 20
Threemile limestone member (6.3 feet)
Limestone, light in color, no flint 2
Limestone, gray, steel-gray flint, fossil fragments 1.7
Shale, gray fossiliferous 1.2
Limestone, gray, steel-gray flint, fossil fragments 1.4
Speiser shale (18.8 feet)
Shale, gray, thin beds, fossiliferous, most fossils fragments of brachiopods 2.4
Limestone, light-gray, somewhat chalky 1
Shale, mostly gray, some red and green 15.3
Funston limestone (6.1 feet exposed)
Limestone, irregular beds 1.2
Shale, gray 1.9
Limestone, brown pitted 3

(43) Sec. 31, T. 10 S., R. 6 E.

Doyle shale (28 feet exposed) Feet
Towanda limestone member
Limestone, yellow, thin beds 10
Holmesville shale member
Shale, yellow and green, bright-green bands locally 18
Barneston limestone
Fort Riley limestone member (30.5 feet exposed)
Limestone or calcareous shale, or shale containing a few limestone beds 5
Limestone, yellow, thin beds 0.5
Shale, gray and yellow 5
Shale, gray, calcareous, small calcite-filled geodes and more calcareous matter near top 7
Limestone, light-gray dense massive, forms line of outcrop around hills 1.5
Shale, yellow argillaceous, thin beds 1.5
Limestone, gray very platy 1
Shale, not well exposed 2
Limestone, white to yellow, thin beds, easily weathered, in gentle slopes 3
Limestone, light in color, massive "rim rock" 4

(44) Sec. 10, T. 10 S, R. 7 E.

Beattie limestone Feet
Cottonwood limestone member
Limestone, light in color, massive, partly silicified, fusulinids in upper part 6
Eskridge shale (36 feet)
Shale, gray 13.8
Limestone, gray laminated, ostracodes 1
Shale, green and gray near top, mostly gray; blocky 6
Limestone 0.2
Shale, gray, somewhat blocky 1.5
Limestone or calcareous shale, many pelecypods, Aviculopecten, Myalina 0.5
Shale, green, gray, and chocolate-color, calcareous in lower part 13
Grenola limestone
Neva limestone member (8.1 feet exposed)
Limestone 0.9
Shale, calcareous 1.2
Limestone, gray, massive 6

(45) N line sec. 24, T. 10 S., R. 7 E.

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Grenola limestone Feet
Burr limestone member
Limestone 2
Roca shale
Shale, green, blue, and chocolate-color, blocky, weathers into irregular fragments stained with rusty splotches 20
Red Eagle limestone (20.5 feet)
Howe limestone member
Limestone, gray massive 4.6
Bennett shale member (14.4 feet)
Shale, mostly gray 7
Limestone, gray 1.4
Shale, black fossiliferous 6
Glenrock limestone member
Limestone, yellow fossiliferous 1.5
Johnson shale (13.5 feet)
Shale, mostly gray, green near base, calcareous zone near middle part 8.5
Mudstone 1.5
Shale, gray 3.5
Foraker limestone (18.1 feet exposed)
Long Creek limestone member
Limestone, yellow, red quartz crystals on weathered surface, fusulinids 8
Hughes Creek shale member (10.1 feet exposed)
Shale 1.6
Limestone 3
Shale, black near top, gray and yellow below 5.5

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Kansas Geological Survey, Geology of Riley and Geary Counties
Web version Nov. 2000. Original publication date Dec. 1941.
Comments to webadmin@kgs.ku.edu
The URL for this page is http://www.kgs.ku.edu/General/Geology/Riley/sect03.html