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Detailed Sections
The following stratigraphic sections, measured in Riley and Geary counties, are arranged in consecutive sections and ranges in each township. The average unit thickness of all stratigraphic units separately described is 6.13 feet.
(1) NE 1/4 sec. 1, T. 6 S., R. 4 E.
View stratigraphic column for this section.
| Cretaceous System | Feet | ||
| Dakota group |  |
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Sandstone, coarse, mostly quartz sand, ferruginous cement | 4 ± |
| Permian System | |
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| Donegal(?) limestone | |
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Hollenberg(?) limestone member | |
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Limestone, yellow earthy, cast of pelecypods | 0.5 |
| "Pearl shale" | |
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Shale, partly covered, yellow in upper part, mostly red in middle and lower part, some gray | 45 |
| Nolans limestone | |
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Herington limestone member | |
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Limestone and thin beds of clay shale, yellow, sandy-appearing (Rest of member concealed) | 3 |
(2) C S line sec. 34, T. 6 S., R. 5 E.
| Wreford limestone | Feet | ||
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Threemile limestone member | |
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Limestone, light in color, flinty | 4 |
| Speiser shale (18 feet exposed) | |
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Shale, gray fossiliferous | 2 |
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Limestone, gray | 1 |
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Shale, red, green, and gray, to water of creek | 15 |
(3) W line sec. 13, T. 6 S., R. 6 E.
View stratigraphic column for this section.
| Winfield limestone (11.5 feet +) | Feet | ||
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Luta(?) and Cresswell limestone members | |
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Weathered shale and limestone fragments | ? |
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Limestone, light in color, spines and other fragments of fossils | 1 |
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Grant shale member | |
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Shale, gray calcareous zone at top, brachiopods | 9.5 |
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Stovall limestone member | |
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Limestone, gray flinty broken | 1 |
| Doyle shale (73.3 feet) | |
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Gage shale member (462 feet) | |
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Shale, light-gray, fossiliferous; layers of coquina | 8.5 |
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Limestone, brown | 0.6 |
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Shale, variegated | 37.1 |
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Towanda limestone member (7.6 feet) | |
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Limestone, light-gray and yellow, somewhat platy | 6 |
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Limestone, bluish-gray, weathers lighter in color, laminated | 1.6 |
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Holmesville shale member (19.5 feet) | |
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Shale, covered | 5 |
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Shale, yellow, a few bands of red | 9 |
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Covered interval | 5.5 |
| Barneston limestone | |
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Fort Riley limestone member (11.8 feet exposed) | |
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Limestone, yellow shaly, thin beds | 10.8 |
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Limestone, more massive than unit above | 1 |
(4) South of C W line sec. 15, T. 6 S, R. 6 E.
View stratigraphic column for this section.
| Nolans limestone (20.3 feet exposed) | |
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Herington limestone member | |
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Limestone, yellow, sandy-appearing, upper part a mass of casts of pelecypods, shaly throughout | 3 |
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Paddock shale member | |
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Shale, gray and yellow, "box work" of calcareous material | 16 |
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Krider limestone member | |
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Limestone, yellow, soft, massive | 1.3 |
| Odell shale (35.7 feet) | |
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Shale, mostly gray, some red, decidedly calcareous in upper part, more or less calcareous throughout | 6 |
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Shale, mostly red, thin nodular layers of calcareous material in upper part | 29.7 |
| Winfield limestone (22.4 feet exposed) | |
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Luta and Cresswell limestone members (12 feet) | |
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Limestone, light-gray earthy | 2± |
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Limestone and shale, thin beds | 6 |
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Limestone, light-gray massive, deeply weathered | 4 |
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Grant shale member | |
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Shale, gray, mostly covered on account of slumping of limestone above | 10 |
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Stovall limestone member | |
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Limestone, yellow to gray flinty | 0.4 |
(5) South of C W sec. 17, T. 6 S., R. 6 E.
| Barneston limestone (74.9 feet exposed) | Feet | ||
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Florence limestone member | |
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Limestone, extremely flinty | 15 |
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Blue Springs shale member | |
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Shale, covered | 38 |
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Kinney limestone member(?) (21.9 feet exposed) | |
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Limestone, light-gray massive | 2± |
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Shale, green and gray | 12 |
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Limestone, light-gray dense | 0.9 |
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Shale, green and red | 4 |
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Conglomerate, green clay matrix, pebbles of worn limestone 1/8 to 1/2 inch in diameter | 1 |
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Conglomerate, semioölitic light-green limestone matrix, pebbles of worn limestone and worn fossils | 2 |
(6) C sec. 17, T. 6 S., R. 6 E.
| Barneston limestone | Feet | ||
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Fort Riley limestone member | |
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Limestone, light in color, massive "rim rock" | 4 |
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Oketo shale member(?) | |
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Florence limestone member | |
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Covered interval | 30 |
| Matfield shale (66.5 feet exposed) | |
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Blue Springs shale member (62 feet) | |
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Covered interval | 40 |
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Limestone, yellow granular, grades into shale below | 2 |
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Shale, yellow near top, purple, gray, red, and steel-blue bands | 20 |
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Kinney limestone member | |
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Limestone, light-gray crystalline, granular | 2.5 |
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Wymore shale member | |
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Shale, green and dark-gray bands to water of creek | 2 |
(7) SW sec. 30, T. 6 S, R. 6 E.
| Nolans limestone (15 feet exposed) | |
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Herington limestone member | |
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Limestone, yellow, more or less massive, arenaceous-appearing | 2 |
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Paddock shale member | |
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Shale, yellow, mostly covered | 12 |
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Krider limestone member | |
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Limestone, yellow, in thin beds | 1 |
| Odell shale | |
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Shale, covered | 35 |
| Winfield limestone (14.5 feet + exposed) | |
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Luta(?) and Cresswell limestone members | |
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Limestone, covered | ? |
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Limestone, light in color, very rough, silicified spines of echinoids, breaks down readily | 1.5 |
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Grant shale member | |
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Shale, gray, abundant fossils | 11.5 |
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Stovall limestone member | |
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Limestone, gray flinty, echinoid spines, Linoproductus sp., Rhombopora sp | 1.5 |
(8) SW sec. 31, T. 6 S., R. 6 E.
View stratigraphic column for this section.
| Doyle shale (34.5 feet exposed) | Feet | ||
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Towanda limestone member (11.4 feet exposed) | |
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Limestone, yellow, and calcareous shale, calcite veins and stringers | 10 |
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Limestone, blue to gray, massive | 1.4 |
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Holmesville shale member (23.1 feet) | |
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Shale, yellow, calcite-filled veins | 3 |
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Shale, yellow and green | 8 |
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Limestone, one bed | 0.1 |
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Shale, greenish-gray argillaceous | 7 |
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Shale, calcareous platy, partly covered | 5 |
| Barneston limestone | |
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Fort Riley limestone member (25.8 feet exposed) | |
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Limestone, brown to yellow, granular, weathers to pitted surfaces, massive to thin beds, grades into unit below | 10 |
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Limestone, light-gray platy | 5.4 |
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Limestone or platy shale, light in color | 3 |
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Covered interval | 2.4 |
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Limestone, brown soft | 1 |
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Limestone, yellowish-gray massive "rim rock" | 2 |
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Limestone, yellowish-gray, thin beds | 2 |
(9) Sec. 6, T. 6 S., R. 7 E.
View stratigraphic column for this section.
| Barneston limestone (43 feet + exposed) | Feet | ||
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Fort Riley limestone member | |
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Limestone, light in color, more or less massive | ? |
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Oketo shale member(?) | |
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Shale, yellow, grades into thin beds of limestone above, some dark gray fossiliferous, part of interval probably belongs in Fort Riley limestone member | 17 |
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Florence limestone member (26 feet exposed) | |
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Limestone, light in color, little or no flint | 1 |
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Limestone, light in color, blue flint, fossiliferous | 2 |
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Shale, calcareous below, some flint | 2 |
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Limestone, light in color, dark-blue flint | 3 |
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Shale, gray, not well exposed | 3 |
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Limestone and flint, more than 50% flint; limestone is yellow and pitted, flint is light gray | 15 |
(10) C S line sec. 10, T. 6 S, R. 7 E.
View stratigraphic column for this section.
| Barneston limestone | Feet | ||
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Florence limestone member | |
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Limestone, flinty | 15± |
| Matfield shale (62.45 feet) | |
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Blue Springs shale member (41.15 feet) | |
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Shale, mostly variegated, gray and platy in upper part | 15± |
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Limestone, red soft | 1.6 |
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Shale, gray, red zone near top | 10.8 |
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Limestone, yellow to gray, massive | 1.85 |
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Shale, green | 0.4 |
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Limestone, chocolate-color, weathers red | 0.5 |
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Shale, upper part green and purple, lower part gray | 11 |
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Kinney limestone member | |
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Limestone, light-gray massive, earthy in texture | 1.3 |
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Wymore shale member | |
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Shale, upper part gray, mostly red, lower 5 feet gray | 20 |
| Wreford limestone (32.5 feet) | |
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Schroyer limestone member | |
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Limestone, gray, granular to crystalline, porous | 2 |
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Shale, gray | 3 |
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Limestone, gray flinty | 3 |
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Schroyer limestone (lower part), Havensville shale, and Threemile limestone (upper part) covered | 20 |
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Threemile limestone member | |
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Limestone, gray flinty | 3 |
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Shale, gray | 0.5 |
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Limestone, gray flinty | 1 |
| Speiser shale (15.6 feet) | |
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Shale, gray fossiliferous | 2 |
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Limestone, gray | 0.6 |
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Shale, gray in upper part, mostly red, nodules of calcareous material in upper part | 13 |
| Funston limestone (12.2 feet) | |
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Limestone, gray semioolitic | 0.9 |
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Shale, gray | 1.5 |
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Limestone, dove-gray hard nodular | 0.6 |
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Shale, gray | 1 |
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Limestone, limonitic | 0.5 |
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Shale, gray fissile | 4 |
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Limestone, gray, rough-weathering, granular, fragments of fossils | 1.4 |
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Shale, gray | 2 |
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Limestone, gray | 0.3 |
| Blue Rapids shale | |
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Shale, gray in upper part, red and green in lower part | 12.5 |
| Crouse limestone | |
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Limestone | 1 |
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(Rest of formation concealed) | |
(11) SE sec. 31, T. 6 S., R. 7 E.
| Wreford limestone (10.3 feet exposed) | Feet | ||
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Havensville shale member | |
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Shale, calcareous | 5 |
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Threemile limestone member (5.3 feet) | |
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Limestone, light in color, one band of flint nodules | 3 |
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Limestone, light in color, no flint | 1 |
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Shale, gray flaky | 0.5 |
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Limestone, light in color, one band of flint nodules | 0.8 |
| Speiser shale (33.4 feet exposed) | |
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Shale, gray fossiliferous | 2 |
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Limestone, light-gray crystalline, hard | 0.7 |
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Shale, purple, chocolate-color, and gray | 9 |
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Limestone, chocolate-color, grades laterally into shale and weathers as shale | 0.7 |
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Shale, red in upper part, green in lower part | 2 |
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Limestone, gray massive, earthy texture | 1 |
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Shale | 1.5 |
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Limestone, gray, two beds | 0.8 |
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Shale, greenish-gray, somewhat blocky | 1.5 |
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Limestone, light-gray in color, weathers yellow, dense in texture | 1.15 |
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Shale, yellow and gray | 5.75 |
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Sandy shale to shaly sandstone, gray, ripplemarked | 1.3 |
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Shale, gray, limonitic in upper part | 6 |
(12) NW sec. 32, T. 6 S., R. 7 E.
View stratigraphic column for this section.
| Barneston limestone | Feet | ||
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Florence limestone member (11.3 feet exposed) | |
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Limestone, flinty | 6.7 |
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Shale and limestone, gray | 1.7 |
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Limestone, gray | 0.7 |
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Shale and thin limestone | 1.6 |
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Limestone, gray | 0.6 |
| Matfield shale (74.25 feet) | |
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Blue Springs shale member (22.5 feet) | |
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Shale, gray | 6.5 |
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Shale, red and gray | 16 |
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Kinney limestone member (18.35 feet) | |
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Limestone, soft and earthy, geodiferous | 1 |
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Shale, green and gray | 5 |
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Limestone, crystalline to earthy | 1 |
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Limestone and shale, thin beds | 2 |
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Shale, gray | 5.75 |
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Limestone, gray crystalline | 0.3 |
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Shale, gray | 2.5 |
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Conglomerate of limestone pebbles in calcareous matrix | 0.8 |
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Wymore shale member (33.4 feet) | |
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Shale, gray, blocky in upper part | 22.6 |
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Shale, chocolate-color in upper part, gray in lower part | 10.8 |
| Wreford limestone | |
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Schroyer limestone member (13.45 feet exposed) | |
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Limestone, light in color, flinty | 1.4 |
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Shale, gray | 1.6 |
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Limestone, gray flinty | 3 |
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Shale, gray and yellow | 0.6 |
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Limestone, gray, slightly crystalline | 0.3 |
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Shale, yellow | 0.7 |
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Limestone, gray, slightly crystalline | 0.4 |
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Shale, greenish-yellow | 1.2 |
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Limestone, yellowish-gray | 0.5 |
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Shale, yellow calcareous | 2 |
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Limestone, yellow and gray, shaly | 1.75 |
(13) NW sec. 1, T. 7 S., R. 4 E.
View stratigraphic column for this section.
| Winfield limestone (20.9 feet exposed) | Feet | ||
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Luta(?) limestone member (9 feet exposed) | |
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Limestone, slightly yellow, thin beds, partly covered, may be some shale | 8 |
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Limestone, slightly yellow, thin beds, poorly exposed | 1 |
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Cresswell limestone member | |
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Limestone, yellow massive, gray on fresh surfaces, appears as one bed, but breaks into several beds | 2.4 |
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Grant shale member | |
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Shale, yellow, argillaceous and calcareous, more calcareous near base, fossiliferous | 8.5 |
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Stovall limestone member | |
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Limestone, gray flinty | 1 |
(14) Sec. 12, T. 7 S., R. 4 E.
View stratigraphic column for this section.
| Nolans limestone (17.4 feet exposed) | Feet | ||
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Herington limestone member | |
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Limestone, yellow, in three beds | 3 |
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Paddock shale member | |
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Shale, gray fossiliferous, few calcareous zones, some carbonaceous matter | 13 |
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Krider limestone member (1.4 feet) | |
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Shale, calcareous | 0.6 |
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Limestone, gray hard, in two beds | 0.8 |
| Odell shale | |
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Shale, gray near top and base, mostly red, but some gray throughout, few thin calcareous beds | 23 |
| Winfield limestone | |
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Luta(?) and Cresswell limestone members (11 feet exposed) | |
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Limestone, nodular, rough-weathering, mostly in thin beds | 5 |
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Shale, yellow, soft arenaceous-appearing, blocky, few concretions, grades into the limestone above | 6 |
(15) Sec. 1, T. 7 S., R. 5 E.
View stratigraphic column for this section.
| Barneston limestone (64.5 feet exposed) | Feet | ||
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Fort Riley limestone member (31.5 feet exposed) | |
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Limestone, yellow, thin beds | 3 |
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Limestone, yellow, beds thinner than those in units above or below | 15 |
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Limestone, massive, thinner beds near top | 6 |
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Limestone, yellow massive | 6 |
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Shale, calcareous | 1 |
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Limestone, light in color | 0.5 |
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Oketo shale member | |
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Shale, gray and blue | 6 |
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Florence limestone member (27 feet) | |
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Limestone, sparse flint | 2 |
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Shale, bluish-gray | 2 |
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Limestone, gray and yellow, abundance of flint except in upper 3 or 4 feet, flint in layers a few inches thick and very irregular | 20 |
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Limestone, gray, arenaceous-appearing, somewhat shaly | 3 |
| Blue Springs shale | |
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Shale, gray, to water of creek | 7 |
Prev Page--References || Next Page--Sections 16-30
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/sect01.html