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Stratigraphy of the Carlile Shale (Upper Cretaceous) in Kansas

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Appendix

Descriptions of Key Sections

Key section A. Composite of sections exposed at localities 4, 5, 6, and 9 along Pawnee River valley and tributary valleys in eastern Finney County and northwestern Hodgeman County (Pl. 1).

Locality 6; N2 sec. 2, T. 22 S., R. 29 W.
Niobrara Chalk Thickness,
feet
Fort Hays Limestone Member, rests with sharp contact on:  
Carlile Shale  
Codell Sandstone Member (not recognized)  
Blue Hill Shale Member  
51. Shale, arenaceous, light olive gray (5Y6/1), weathers yellowish gray (5Y8/1), much terrigenous silt and very fine grained sand, especially at top; poorly exposed 5.8
50. Shale, clayey, silty to arenaceous, medium dark gray, weathers light gray and blocky to flaky, numerous very thin sandy layers and some ferruginous streaks; transitional to unit above 20.3
49. Shale, clayey, silty, dark gray, weathers medium gray, numerous streaks of very fine sand and several very thin irregular layers of dark -yellowish- orange very fine quartz sandstone; sandstone very gently cross laminated, ?worm castings in some layers; widely spaced calcareous septarian concretions at several horizons 13.5
48. Concretions, calcareous, septarian, all partly weathered, matrix generally yellowish gray, septa grayish orange; concretions in lower part of zone weather conspicuous dark yellowish orange or pale reddish brown and have cone-in-cone "crust"; sandstone, 0.2 foot, hard, calcareous, weathered moderate yellowish brown, very fine grained, lies 1.5 feet below top of unit; shale in zone dark gray, weathers medium gray, silty, blocky, weathers flaky 3.5
47. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, moderately silty, contains layer of widely scattered calcareous septarian concretions about 4 feet above base 25.0
46. Concretions, calcareous, septarian, most are partly weathered, matrix yellowish gray (5Y8/1), septa grayish orange; uppermost concretions weather to conspicuous dark yellowish orange to pale reddish brown and have cone-in-cone "crust" that disintegrates to pencil-like fragments; shale in zone like that below 4.2
45. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, mostly slightly silty, abundant crystals of selenite on slope; widely spaced calcareous septarian concretions at 4 and 14 feet above base 29.5
Locality 9; SW sec. 11, T. 22 S., R. 28 W.
44. Concretions, calcareous, septarian, matrix medium dark gray, weathers pale yellowish orange, septa weather dark yellowish orange; some concretions have cone-in-cone "crust" that disintegrates to splintery rubble, many concretions have smooth exterior except for large wartlike protuberances that are strongly septate; same zone is exposed at base of section at locality 6 but is there about 5 feet thick and has many concretions that are weathered a conspicuous moderate reddish brown; clay shale in zone like that below 4.0
43. Shale, clayey, medium light gray to light olive gray (5Y6/1), weathers yellowish gray (5Y8/1) with dark-yellowish-orange ferruginous staining, blocky to fissile, weathers flaky, slightly silty throughout; thin layer of dark-yellowish-orange oxidized iron near base 15.4
42. Shale, clayey, medium light gray to light gray, weathers medium light gray with dark-yellowish-orange ferruginous staining, very thinly and irregularly fissile, very slightly silty, gradational with underlying shale 6.1
41. Shale, clayey, olive gray (5Y4/1) in lower 10 feet to medium dark gray in rest of unit, mostly weathers medium dark gray, blocky to thinly and irregularly fissile, weathers flaky, very slightly silty throughout, selenite crystals common on weathered slope; streaked with iron oxide, very fossiliferous; FOSSILS, Inoceramus latus, I. flaccidus, Scaphites sp., Collignoniceras hyatti, gastropod molds, lobster? 47.7
Total thickness of Blue Hill Shale Membe 175.0
Fairport Chalk Member  
40. Shale, chalky, olive gray (5Y4/1), weathers medium light gray, speckled throughout, tough, fissile, gypsiferous, streaked locally with yellow ferruginous matter, grades to weakly calcareous shale at top; limestone, marly, olive gray (5Y4/1), weathers yellowish gray (5Y7/2), medium hard, tough, very fine grained, speckled, as nodular lenses widely spaced in layers, mostly 4 to 5 feet below top of unit; biofragmental calcarenite, lenticular, medium gray, weathers dark yellowish orange, very hard, brittle, with petroliferous odor, locally at top of unit; FOSSILS, in shale, Inoceramus latus, Collignoniceras woollgari, fish scales; in marly limestone, mosasaur bones; in calcarenite, Inoceramus scraps and prisms, C. woollgari, fish bones 11.0
39. Bentonite, dark yellowish orange, biotitic, associated with much granular gypsum 0.02
38. Shale, chalky, light olive gray (5Y5/2), weathers dark yellowish orange to pale yellowish brown, blocky to fissile, splits best along fossiliferous bedding planes, slightly silty throughout, speckled throughout, chalkiest at top, thin limonite film around fossils; FOSSILS, Inoceramus latus, Collignoniceras woollgari 1.7
37. Bentonite, dark yellowish orange, slightly silty 0.15
36. Shale, calcareous, medium dark gray, weathers dusky yellow, fissile, weathers flaky, speckled throughout, slightly silty, locally streaked with very thin laminae of light-olive-gray quartz silt; shale partly chalky, especially in basal 3 feet; FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, Collignoniceras woollgari, remains of a large vertebrate 17.3
35. Bentonite, pale grayish pink, nonsilty, very gypsiferous 0.04
Locality 4; NE NW sec. 6, T. 22 S., R. 24 W., and SW SE sec. 31, T. 21 S., R. 24 W.
34. Shale, chalky, light gray, weathers dusky yellow to dark yellowish orange, soft, laminated, speckled throughout, several thin to very thin layers of white microgranular caliche; 0.01-foot nearly white bentonite layer 0.1 foot above base; a few very thin layers of biofragmental calcarenite, light olive gray (5Y6/2); FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, Collignoniceras woollgari, shark tooth, and fish vertebra 10.5
33. Bentonite, very light gray 0.02
32. Shale, chalky, light gray, weathers dusky yellow to dark yellowish orange, soft, laminated, speckled throughout, two very thin layers of grayish-orange biofragmental calcarenite; FOSSILS, Inoceramus latus, Ostrea congesta, Serpula 3.7
31. Bentonite, white, weathers dark yellowish orange 0.1
30. Shale, chalky, light gray, weathers dusky yellow to dark yellowish orange mottled light gray, soft, laminated, speckled throughout, abundant fossils flattened along bedding planes, very thin lenses of grayish-orange biofragmental calcarenite; FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, Collignoniceras woollgari, Serpula tenuicarinata, S. semicoalita, fish vertebrae 7.9
29. Shale, chalky, biofragmental calcarenite, silty chalk, and bentonite, interbedded; shale as above, calcarenite light olive gray (5Y5/2) and composed chiefly of Inoceramus, bentonite 0.02 foot thick and white, chalk weathered dark yellowish orange; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari, Serpula tenuicarinata 0.8
28. Bentonite, nearly white, weathers dark yellowish orange 0.05
27. Shale, chalky, light gray to light olive gray (5Y5/2), weathers medium yellowish orange, mottled, soft, laminated, speckled throughout, abundant fossils flattened along bedding planes, thin layer of silty chalk near top; FOSSILS, Inoceramus latus, Scaphites sp., Collignoniceras woollgari, fish scales 1.7
26. Chalk, silty, light olive gray (5Y6/1), weathers dark yellowish orange, speckled throughout; silt is calcareous; some light-gray bentonitic clay 0.35
25. Shale, chalky, light olive gray (5Y6/1), weathers dark yellowish orange, mottled, soft, laminated, speckled throughout; FOSSILS, Inoceramus latus, Collignoniceras woollgari 2.1
24. Shale, chalky, light olive gray (5Y6/1), weathers moderate yellowish brown, soft, laminated, speckled throughout; FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, O. lugubris, Collignoniceras woollgari, Stramentum? n. sp., Serpula semicoalita 3.9
23. Chalk, silty, and shale, chalky, medium light gray, weathers dark yellowish orange; chalk lenticular, blocky, containing calcareous silt; shale soft, very thin bedded; all rocks speckled throughout; FOSSILS, Inoceramus latus, Collignoniceras woollgari 0.5
22. Bentonite, moderate yellowish brown 0.03
21. Shale, chalky, medium light gray, weathers dark yellowish orange, soft, laminated, speckled throughout, gypsiferous; FOSSILS, Inoceramus latus, Collignoniceras woollgari, fish scales 2.8
20. Chalk, silty, medium gray, weathers dark yellowish orange, soft, blocky, speckled throughout; silt calcareous; FOSSILS, fish scale 0.15
19. Shale, chalky, light gray, weathers dark yellowish orange, soft, laminated, speckled throughout, gypsiferous; FOSSILS, Inoceramus latus 1.5
18. Unmeasured, not exposed in vicinity of sections at localities 4 and 5, estimated minimum thickness 8.5
Locality 5; SE sec. 36, T. 21 S., R. 26 W., and NW sec. 6, T. 22 S., R. 25 W.
17. Shale, chalky, greenish gray (5GY6/1), weathers dark yellowish orange, soft, laminated, speckled throughout, with thin dark-yellowish-orange-weathering biofragmental calcarenite lenses near base; FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, fish scales 5.6
16. Chalk, silty, all weathered dark yellowish orange, medium hard, tough, speckled throughout; silt is calcareous; FOSSILS, Inoceramus latus, Ostrea congesta 0.3
15. Shale, chalky; base olive gray (5Y4/1), weathers light gray, tough, laminated, with dark- yellowish-orange bentonite 0.02 foot thick lying 0.7 foot above base; top of unit yellowish gray (5Y7/2) weathering dark yellowish orange, soft, clayey; all rocks speckled throughout, abundant fossils flattened along bedding planes; FOSSILS, Inoceramus latus, Ostrea congesta, fish scales 4.3
14. Bentonite, yellowish gray, (5Y7/2), weathers light brown (5YR5/6) 0.03
13. Shale, chalky, olive gray, weathers moderate yellowish brown, tough, laminated, speckled throughout; FOSSILS, Ostrea congesta, Collignoniceras woollgari 1.4
12. Chalk, silty, all weathered grayish orange, medium hard, speckled throughout; silt is calcareous, lies on very thin seam of dark-yellowish-orange bentonite; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.1
11. Shale, chalky, olive gray (5Y4/1), weathers moderate yellowish brown, tough, laminated, speckled throughout, very fossiliferous throughout, thin lenticular silty chalk bed 2 feet above base; FOSSILS, Inoceramus cuvieri, Collignoniceras woollgari 4.1
10. Limestone, chalky, dark yellowish brown, weathers dark yellowish orange and crumbly, speckled throughout, soft, less resistant than chalky limestone below, ranging in thickness from 0.2 to 0.6
9. Shale, chalky, olive gray (5Y4/1), dark yellowish brown toward top, weathers light gray, tough, laminated, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari, shark tooth 7.4
8. Limestone, chalky, all weathered grayish orange to dark yellowish orange, medium hard, tough, speckled throughout, moderately resistant, forms bench locally; FOSSILS, teleost scale 0.4
7. Shale, chalky, olive gray (5Y4/1), weathers light gray, upper beds all weathered grayish orange, tough, laminated, speckled throughout, becoming shaly chalk near top with a few thin yellowish-gray (5Y8/1) chalk layers in upper 0.5 foot; dark-yellowish-orange gypsiferous bentonite 0.1 foot thick lies 1.0 foot above base; FOSSILS, Inoceramus cuvieri, Ostrea congesta 6.8
6. Limestone, chalky, all weathered grayish orange to dark yellowish orange, medium hard, tough, speckled throughout, base of bed undulatory; locally weathers to three thin beds; FOSSILS, carbonized and partly calcified log perforated by Teredo borings 0.4
5. Shale, chalky, olive gray (5Y4/1) or light olive gray (5Y5/2), weathers light gray, yellowish gray (5Y7/2), or grayish orange, tough, laminated, abundantly speckled; unit very chalky at top, containing three layers of widely spaced oblate -spheroidal nodules of limestone, chalky, olive gray (5Y4/1) weathering yellowish gray (5Y8/1); FOSSILS, in shale, Inoceramus cuvieri, Ostrea congesta, Serpula semicoalita, Collignoniceras woollgari; in limestone, I. cuvieri 8.6
4. Limestone, chalky, all partly weathered grayish yellow (5Y8/4) with moderate-yellowish-brown ferruginous stain, hard, speckled throughout, thin to medium bedded, resistant, poorly fossiliferous; FOSSILS, recrystallized belemnites, fish scales, Inoceramus sp. 0.6
3. Gypsum, dark yellowish orange owing to ferruginous staining, soft, granular, some calcareous cement 0.2
2. Bentonite, dark yellowish orange 0.2
1. Shale, chalky, or chalk, shaly, olive gray (5Y4/1), weathers light gray to yellowish gray (5Y7/2), tough, very evenly laminated, abundantly speckled throughout, many fossils flattened along bedding planes, one thin bed and three nodular layers of limestone, chalky, light olive gray (5Y5/2), weathers yellowish gray (5Y7/2) or (5Y8/1), hard, tough, abundantly speckled throughout, Thickness, feet nodules oblate spheroidal; FOSSILS, in shale, Inoceramus labiatus (broad form), Ostrea congesta, Collignoniceras woollgari, teleost scales, and vertebrae; in nodules, Inoceramus labiatus (broad form) 5.8
Estimated minimum total thickness of Fairport Chalk Member 121.6
Estimated minimum total thickness of Carlile Shale 296.6
Greenhorn Limestone (not measured)  

Key section B. Composite of sections exposed at localities 12, 16, 17, and 27 along Smoky Hill River valley in southwestern Ellis County.

Locality 17; N2 sec. 22 and NE sec. 21, T. 15 S., R. 20 W.
Niobrara Chalk Thickness,
feet
Fort Hays Limestone Member, rests with sharp contact on:  
Carlile Shale  
Codell Sandstone Member  
64. Sandstone, argillaceous, light olive gray (5Y6/1), weathers very light gray, or dark yellowish orange where iron stained, medium hard, very fine grained, very thin shaly bedding; FOSSILS, ?worm castings, fish scales 2.2
63. Sandstone, calcareous, light olive gray (5Y6/1), weathers dark yellowish orange, hard, very fine grained, thin to very thin irregular bedding, much oxidized iron 3.5
Total thickness of Codell Sandstone Member 5.7
Blue Hill Shale Member  
62. Shale, arenaceous, and sandstone, argillaceous; shale dark gray, weathers medium gray, blocky to fissile, weathers blocky to flaky, streaks and patches of light-olive-gray (5Y6/1) very fine grained terrigenous sand throughout; sandstone light olive gray (5Y6/1), as thin to very thin layers interbedded with sandy shale, mostly soft, very fine grained, a few medium-hard layers near base of unit; pronounced color change on slope between this unit and one above 10.1
61. Shale, clayey, finely arenaceous, dark gray, weathers medium gray, blocky to fissile, weathers mostly blocky or flaky; unit moderately silty at base becoming sandy upward, mottled by laminae and minute lentils of very fine terrigenous sand; unit very selenitic toward base, stained throughout by ferruginous matter; 0.3foot hard sandstone, calcareous, light olive gray (5Y6/1), weathers dark yellowish orange, containing worm? or gastropod? trails lies 3 feet above base 23.1
60. Concretions, calcareous, septarian, matrix olive gray (5Y4/1) weathering conspicuous dark yellowish orange to light brown (5YR5/6), septa grayish orange, maximum size of concretions is 8 feet wide by 3 feet thick, large concretions have cone-in-cone 11 crust; shale in zone dark gray, weathers medium gray, blocky to fissile, weathers flaky, moderately silty to very fine sandy throughout; unit contains three thin layers of hard, calcareous fine-grained sandstone, light olive gray (5Y6/1), weathers yellowish gray (5Y8/1), containing worm? or gastropod? trails 8.3
59. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, slightly silty throughout; FOSSILS, fragmentary remains of fish 4.9
58. Concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers light gray, septa dusky brown where exposed; shale in zone like that in 57 2.0
57. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky; layer of widely scattered calcareous septarian concretions lies 7.6 feet above base 18.1
56. Concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers grayish orange to light gray, lowest concretions weather conspicuous dark yellowish orange, septa moderate brown; shale in zone like that in unit 54 7.5
55. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty throughout, stained throughout by grayish-yellow ferruginous matter 6.1
54. Concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers yellowish orange, septa moderate brown, outer surface very smooth; shale in zone like that in unit 52; FOSSILS, Collignoniceras hyatti, Proplacenticeras? sp., Scaphites sp., Inoceramus sp. 3.0
53. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty; FOSSILS, Inoceramus sp. 21.4
52. Concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers yellowish orange to dark yellowish orange, septa grayish brown, weather moderate yellowish brown; uppermost concretions have orbicular weathering and cone-in-cone "crust"; shale in zone like that in unit 51; zone forms distinct topographic bench 9.0
51. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty, abundant small selenite crystals, stained throughout by yellowish-gray and dark-yellowish-orange ferruginous matter; thin layer of very fine grained sandstone, dusky red to dark yellowish orange, lies 5.5 feet below top 37.2
50. Covered; small exposure 8 feet from top is clayey shale like that in unit 51; FOSSILS, Collignoniceras sp., teleost scales and vertebrae 15.3
49. Shale, clayey, dark gray, weathers medium gray to pale yellowish brown, fissile, very slightly silty, iron stained, selenitic; FOSSILS, Collignoniceras sp., teleost scales 1.6
Total thickness of Blue Hill Shale Member 167.6
Fairport Chalk Member  
48. Shale, chalky to calcareous, olive gray (5Y4/1), weathers medium gray, fissile, blocky and harder in lower 2 feet, sparsely speckled in lower part grading upward to nonspeckled and only slightly calcareous shale, slightly silty throughout; FOSSILS, Inoceramus latus, Collignoniceras woollgari, Scaphites sp., teleost scales 8.9
47. Chalk, marly, silty, olive gray (5Y4/1), weathers grayish orange, medium hard, tough, blocky, speckled throughout; silt is calcareous; FOSSILS, Inoceramus latus, Inoceramus n. sp.?, Collignoniceras woollgari, Scaphites patulus 0.8
46. Shale, chalky, silty, olive gray (5Y3/2), weathers medium light gray, medium hard, tough, irregularly laminated, blocky at top, grades into unit 47, mostly speckled throughout; some thin layers virtually noncalcareous, silt is calcareous; FOSSILS, Inoceramus latus, Ostrea congesta, Collignoniceras woollgari 3.1
45. Bentonite, nearly white, medium hard 0.01
Locality 16; SW SE sec. 10 and NW NE sec. 15, T. 15 S., R. 20 W.
44. Shale, chalky, olive gray (5Y3/2), weathers light olive gray (5Y6/1) to medium light gray, fissile, speckled throughout but much less so than most units lower in section; unit locally gypsiferous; very thin discontinuous silty chalk layer lies 1.4 feet above base; biofragmental calcarenite lenses common at several horizons; FOSSILS, Inoceramus cuvieri, Ostrea congesta 28.7
43. Bentonite, yellowish gray (5Y8/1), weathers dark yellowish orange 0.08
42. Shale, chalky, silty, olive gray (5Y3/2), weathers medium light gray, fissile, tough, very sparse speckling; silt calcareous; several very thin layers of biofragmental calcarenite, light olive gray (5Y4/2), weathers grayish orange; FOSSILS, Inoceramus latus, I. cuvieri, Ostrea congesta, Collignoniceras woollgari, shark tooth 8.5
41. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1), very thin bedded, blocky, tough, speckled, very fossiliferous; silt calcareous; FOSSILS, Inoceramus latus 0.3
40. Shale, chalky, olive gray (5Y3/2), weathers medium light gray, irregularly laminated, speckled throughout, calcareous silt; very thin bentonite, yellowish gray (5Y7/2), lies 0.6 foot below top; ferruginous layer containing weathered pyrite nodules lies 0.9 foot above base; FOSSILS, Inoceramus latus 2.9
39. Bentonite, nearly white, weathers dark yellowish orange, ranges from 0.07 to 0.12
38. Shale, chalky, as in unit 40 1.4
37. Chalk, marly, silty, olive gray (5Y4/1), weathers light gray, medium hard, tough, thin irregular bedding, speckled throughout; silt calcareous; unit very fossiliferous; FOSSILS, Inoceramus latus 0.15
36. Shale, chalky, olive gray (5Y4/1), weathers light gray, tough, irregularly laminated, speckled throughout, small amount of calcareous silt; thin pale-yellowish-brown very silty chalk layer 2.0 feet below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Stramentum? n. sp. 4.1
35. Chalk, marly, silty, olive gray (5Y4/1), weathers light gray, medium hard, tough, thin irregular bedding, speckled throughout; FOSSILS, Inoceramus latus 0.4
34. Shale, chalky, olive gray (5Y3/2), weathers medium light gray, tough, irregularly laminated, speckled throughout, gypsiferous, some calcareous silt; bentonite 0.05 foot thick, very pale orange, weathers dark yellowish orange, lies 0.5 foot above base; very thin biofragmental calcarenite layer just below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Stramentum? n. sp., Serpula tenuicarinata 1.2
33. Chalk, marly, silty, olive gray (5Y4/1), weathers light gray, medium hard, tough, speckled throughout, weathered part greatly fractured; FOSSILS, Inoceramus sp. 0.2
32. Shale, chalky, like unit 34, containing small selenite crystals along bedding planes; two 0.01-foot bentonite seams, dark yellowish orange, lie 0.3 and 2.4 feet above base respectively; FOSSILS, Inoceramus latus, I. cuvieri 5.4
31. Chalk, marly, silty, olive gray (5Y4/1), weathers light gray, medium hard, tough, irregularly laminated, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari 1.0
30. Shale, chalky, like unit 34; FOSSILS, Inoceramus latus, I. cuvieri 7.3
29. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1), medium hard, tough, speckled; sparry gypsum layer at base 0.1
28. Bentonite, yellowish gray (5Y8/1), weathers dark yellowish orange 0.1
27. Shale, chalky, olive gray (5Y3/2), weathers medium light gray, tough, laminated, speckled, contains some calcareous silt 0.15
26. Bentonite, nearly white, weathers dark yellowish orange 0.05
Locality 27; NE SE sec. 18, T. 15 S., R. 19 W.
25. Shale, chalky, all partly weathered, pale yellowish brown to yellowish gray, soft, laminated, some calcareous silt 3.1
24. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1) to grayish orange, soft, very thin irregular bedding, weathers blocky to platy, some calcareous silt 0.3
23. Shale, chalky, all partly weathered, moderate yellowish brown to yellowish gray (5Y7/2), tough, laminated, speckled throughout, some calcareous silt, very fossiliferous; FOSSILS, Inoceramus cuvieri, Ostrea congesta, shark tooth, teleost vertebra 1.6
22. Chalk, marly, silty, olive gray (5Y3/2), weathers light olive gray (5Y6/1) to dark yellowish orange, medium hard, thin to very thin bedded, weathers blocky, speckled; ferruginous layer near top; fossils sparse and fragmentary; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.9
21. Shale, chalky, olive gray (5Y3/2), weathers light gray to moderate yellowish brown, tough, laminated, speckled throughout, some calcareous silt; FOSSILS, Ostrea congesta, Serpula tenuicarinata, shark tooth 4.2
20. Bentonite, dark yellowish orange to grayish yellow, gypsiferous 0.1
19. Shale, chalky, like unit 21 2.5
18. Bentonite, dark yellowish orange 0.02
17. Shale, chalky, olive gray (5Y3/2), weathers light gray, tough, laminated, speckled throughout, some calcareous silt 0.6
16. Bentonite, yellowish gray, weathers grayish yellow, dark yellowish orange, or nearly white 0.15
15. Shale, chalky, olive gray (5Y3/2), weathers light gray, tough, laminated, speckled throughout, some calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta 3.7
14. Limestone, chalky, silty, all partly weathered, light olive gray (5Y5/2) to medium light gray, dark yellowish orange, or grayish orange, soft, thin bedded, weathers blocky to crumbly, not as resistant as chalky limestone beds below, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari, carbonized-calcified wood 0.7
13. Shale, chalky, olive gray (5Y4/1), weathers medium light gray to light gray, tough, laminated, speckled throughout, minor calcareous silt; bentonite, 0.01 foot thick, dark yellowish orange, lies 0.5 foot below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta 2.2
12. Limestone, chalky, all partly weathered, moderate yellowish brown, grayish orange, or yellowish gray (5Y8/1), medium hard, tough, upper surface rough, speckled throughout, forms prominent ledge 0.15
11. Shale, chalky, olive gray (5Y4/1), weathers medium light gray to pale yellowish brown, tough, laminated, speckled throughout, very fossiliferous, minor calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta, shark teeth, teleost scales 2.6
10. Limestone, chalky, all partly weathered, grayish orange to dark yellowish orange, soft but tough, forms prominent ledge, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.3
9. Shale, chalky, dark olive gray, weathers medium light gray to light gray, tough, evenly laminated, speckled throughout; top 0.5 foot is very pale orange silty shaly chalk; thin layer of light-olive-gray (5Y5/2) silty chalky limestone lies about 1.3 feet above base; unit very fossiliferous; FOSSILS, Inoceramus cuvieri, Ostrea congesta, fish remains 5.3
8. Bentonite, pale yellowish brown, weathers dark yellowish orange 0.05
7. Shale, chalky, olive gray (5Y6/1), weathers medium light gray to light gray or yellowish gray (5Y8/1), medium hard, tough, evenly laminated, speckled throughout, poorly fossiliferous; FOSSILS, Inoceramus fragments, teleost scales 1.1
6. Limestone, chalky, olive gray, weathers light gray to yellowish gray (5Y8/1), medium hard, tough, thin bedded, forms resistant ledge, speckled; FOSSILS, Inoceramus cuvieri, Ostrea congesta, shark tooth 0.6
Locality 12; NE sec. 27, T. 15 S., R. 18 W.
5. Shale, chalky, and chalk, shaly, all partly to deeply weathered, very pale orange to dark yellowish orange or nearly white, soft but tough, evenly laminated to very thin bedded, speckled throughout; layers of irregular oblate -spheroidal nodules of chalky limestone, grayish orange to very pale orange, at three horizons in unit; nodules in top layer have ferruginous zone through centers and parallel to bedding; nodules of lowest zone contain calcified wood locally; FOSSILS, in shale, Inoceramus latus, I. cuvieri, Ostrea congesta 7.2
4. Limestone, chalky, all partly to deeply weathered, grayish orange to pale yellowish orange, medium hard, tough, speckled, forms resistant ledge, two ferruginous zones near base; FOSSILS, Inoceramus cuvieri, I. latus, belemnite 0.45
3. Gypsum, dark yellowish orange owing to ferruginous staining, loose, granular 0.2
2. Bentonite, nearly white, weathers dark yellowish orange 0.2
1. Shale, chalky, all partly to deeply weathered, yellowish gray (5Y8/1) to very pale orange, soft but tough, evenly laminated, speckled throughout, three layers of lenticular to irregularly oblate spheroidal nodules of limestone, chalky, yellowish gray (5Y7/2) to grayish yellow, medium hard, tough, speckled, some having ferruginous zone through center parallel to bedding; FOSSILS, in shale, Inoceramus labiatus (broad form), I. cuvieri, Ostrea congesta, Collignoniceras woollgari 4.7
Total thickness of Fairport Chalk Member 117.9
Total thickness of Carlile Shale 291.20
Greenhorn Limestone (not measured)  

Key section C. Composite of sections exposed at localities 25 and 26 in gullies and bluffs along south wall of Saline River valley in northeastern Ellis County.

Locality 25; SW sec. 29 and SE SE sec. 30, T. 11 S., R. 16 W.
Niobrara Chalk Thickness,
feet
Fort Hays Limestone Member, rests with sharp slightly uneven contact on:  
Carlile Shale  
Codell Sandstone Member  
66. Sandstone, silty, light olive gray (5Y7/2), weathers dusky yellow, limonite stained, thick to very thick bedded, beds weather rounded and somewhat pitted, cavernous weathering near top, medium hard, friable, noncalcareous, moderately resistant, many cylindrical worm? burrows that are especially numerous near top; dominantly quartzose, chiefly very fine grained sand and coarse silt 19.0
65. Siltstone, argillaceous and very finely arenaceous, light olive gray (5Y6/1), weathers yellowish gray (5Y7/2) to dusky yellow, thin Thickness, feet to very thin bedded, thinly laminated except for basal few feet, soft to medium hard, friable, much speckled with limonite, interbedded and locally interlaminated with slightly silty to very arenaceous shale, medium dark gray, fissile, weathers flaky, more abundant in lower half of unit; FOSSILS, one vertical worm? burrow 12.0
Total thickness of Codell Sandstone Member 31.0
Blue Hill Shale Member  
64. Shale, clayey, silty to very finely arenaceous, medium dark gray, weathers same to somewhat brownish, blocky, weathers flaky, some yellowish ferruginous staining, moderately silty at base becoming progressively siltier upward; silt locally as streaks and small lentils less than 0.05 foot thick, some of which are thinly laminated, light olive gray (5Y5/2) 10.5
63. Concretions, calcareous, septarian, (matrix olive gray (5Y3/2), weathers yellowish gray (5Y8/1) to light gray, septa gray brown to moderate brown), as much as 5 feet in diameter, granular texture on outer surface; shale like that in unit 62 but sandier; very soft, olive-gray, argillaceous shaly sandstone layer, 0.3 foot thick, lies near base of zone; one thin bed of dark-yellowish-orange-weathering, hard, calcareous, thinly laminated, very fine grained silty sandstone near middle of unit 2.2
62. Shale, clayey, very finely arenaceous and silty, olive gray (5Y4/1), weathers medium gray, blocky to fissile, weathers flaky, numerous very small lenses and a few very thin layers of light-olive-gray (5Y6/1) very fine grained sandstone 3.9
61. Shale, clayey, silty, dark gray, dark olive gray (5Y3/1) at top, weathers medium gray, blocky and fissile, weathers flaky, very slightly silty at base grading to very silty at top, numerous very small lenses of silt or very fine sand in upper part, transitional to unit 62 10.1
60. Concretions, calcareous, septarian, matrix olive gray (5Y3/2), weathers yellowish gray (5Y8/1) to light gray, outer surface granular, septa gray brown to moderate brown; shale in zone like that in unit 59 1.5
59. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty, limonitic staining along joints and bedding planes 17.3
58. Concretions, calcareous, septarian, like those in unit 60 1.2
57. Shale, clayey, medium dark gray to dark gray, weathers light olive gray (5Y6/1) to medium gray, blocky to fissile, weathers flaky to platy, very slightly silty; limonitic staining along joints and bedding planes 33.5
56. Concretions, calcareous, septarian, matrix olive gray (5Y3/2, 5Y4/1), weathers dark yellowish orange to moderate reddish brown, septa yellowish brown; concretions range from 0.3 to 7 feet in diameter, largest concretions have irregular to wartlike tuberosities at least one of which is formed by accretion around a very large ammonite; shale in zone like that in unit 55; FOSSILS, Collignoniceras hyatti 4.8
55. Shale, clayey, dark olive gray (5Y3/1) to dark gray, weathers olive gray (5Y4/1) to medium gray, blocky to fissile, weathers flaky, slightly silty; limonitic staining on joints and bedding planes, small selenite crystals common locally, strongly oxidized pyrite nodules common 4.9
54. Shale, clayey, dark gray, locally olive gray (5Y4/1) near base, weathers medium gray, blocky to fissile, weathers flaky, slightly silty; especially in top 12 feet contains several layers of small widely scattered calcareous septarian concretions, none larger than 2.5 feet in diameter; concretions have olive-gray (5Y4/1) matrix that weathers yellowish gray (5Y8/1), exterior of concretions nearly smooth, many are somewhat irregularly spheroidal 24.7
53. Concretions, calcareous, septarian, broadly oblate spheroidal, matrix olive gray, weathers yellowish gray (5Y8/1), zone somewhat more conspicuous than those in unit 54; shale in zone like that in unit 54 0.8
52. Shale, clayey, dark gray to dark olive gray (5Y3/1), weathers medium gray, blocky to fissile, weathers flaky, slightly silty; bentonite, 0.1 foot thick, light olive gray (5Y6/1), lies 1 foot above base of unit; first foot of shale above bentonite is light olive gray (5Y5/2), bentonitic, and much stained by limonite 17.9
51. Concretions, calcareous, septarian, nearly spherical, widely scattered in a single layer, hold up prominent bench, weather conspicuous dark yellowish orange 2.0
50. Shale, clayey, like that in unit 52 6.9
49. Concretions, calcareous, septarian, broadly discoidal, most are much smaller than 1.5 feet in diameter, but some in top layer are 3.5 feet wide by 0.5 foot thick, matrix generally olive gray (5Y4/1), weathers yellowish gray (5Y8/1), septa white to yellowish gray; shale in zone dark gray to olive gray (5Y4/1), blocky to fissile, weathers flaky, very slightly silty; FOSSILS, Inoceramus flaccidus, Proplacenticeras? sp., Collignoniceras hyatti, Scaphites carlilensis, Yoldia sp., gastropod mold 5.5
48. Shale, poorly exposed 7.5
47. Concretions, clay ironstone, discoidal, matrix olive gray (5Y4/1), weathers dark yellowish orange or, more commonly, grayish and dusky red; concretions very hard, brittle, very fine grained, do not react to dilute HCl, contain thin veins of nearly white calcite; FOSSILS, Inoceramus cf. I. flaccidus, gastropod molds 1.4
46. Shale, clayey, dark gray, olive gray (5Y3/2, 5Y4/1), weathers medium gray to light olive gray (5Y6/1), blocky to fissile, weathers flaky, very selenitic, middle part fossiliferous; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras sp. (juvenile,), teleost bones, one coprolite, remains of a large reptile? 28.6
Total thickness of Blue Hill Shale Member 185.2
Fairport Chalk Member  
45. Shale, chalky, olive gray (5Y4/1), weathers medium yellowish brown, soft, tough, laminated, slightly silty, speckled throughout, very fossiliferous; FOSSILS, Inoceramus latus, I. cuvieri 4.4
44. Chalk, silty, all partly to deeply weathered, light gray to grayish orange, soft, tough, blocky, weathers crumbly, very fossiliferous; silt is calcareous; FOSSILS, Inoceramus latus, I. n. sp.? Collignoniceras woollgari 0.55
43. Shale, chalky, olive gray (5Y3/2), weathers medium yellowish brown (10YR5/2), soft, tough, laminated, contains some calcareous silt, speckled throughout, very fossiliferous; bentonite seam, 0.02 foot thick, nearly white, weathers dark yellowish orange, lies 1.85 feet below top of unit; biofragmental calcarenite, dark yellowish orange, very fossiliferous, common as very thin lenses in middle part; FOSSILS, Conopeum n. sp., Proboscina n. sp., Serpula semicoalita, Stramentum? n. sp., Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari, teleost bones, shark teeth, coprolites 16.3
42. Chalk, silty, all partly weathered, moderate yellowish brown, soft, tough, weathers blocky, speckled throughout; silt is calcareous; FOSSILS, Inoceramus latus 0.55
41. Shale, chalky, olive black, weathers medium gray to dark yellowish brown, soft, tough, laminated, speckled throughout, much fine granular gypsum throughout, contains some calcareous silt; bentonite seam, 0.08 foot thick, light brownish gray, weathers dark yellowish orange, underlain by fine granular gypsum, lies 0.9 foot below top of unit; FOSSILS, Inoceramus latus 6.1
40. Chalk, marly, silty, olive gray (5Y4/1), weathers medium yellowish brown (10YR5/2), soft, tough, weathers blocky, speckled throughout; silt is calcareous; FOSSILS, Inoceramus latus 0.4
39. Shale, chalky, olive black, weathers dark yellowish brown, soft, tough, laminated, contains much fine granular gypsum throughout, speckled throughout; FOSSILS, Inoceramus latus, Ostrea congesta, Stramentum? n. sp. 2.6
38. Bentonite, very pale orange, weathers dark yellowish orange 0.16
37. Shale, chalky, olive gray (5Y4/1), weathers pale yellowish brown, soft, tough, laminated, speckled throughout, contains much fine granular gypsum throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari, Serpula tenuicarinata 5.9
36. Chalk, marly, silty, all partly weathered, moderate yellowish brown, weathers crumbly; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.5
35. Shale, chalky, all partly weathered, pale yellowish brown, soft, laminated, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.95
34. Chalk, marly, silty, all partly weathered, moderate yellowish brown, weathers blocky 0.2
33. Shale, like that in unit 35 1.2
32. Chalk, like that in unit 34 0.2
31. Shale, like that in unit 35, three partings of dark-yellowish-orange bentonite in lower 2.5 feet; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Stramentum? n. sp., Serpula sp. 4.8
Locality 26; SE sec. 29, T. 11 S., R. 16 W.
30. Chalk, marly, silty, all partly weathered, grayish orange to dark yellowish orange, soft, tough, weathers blocky to crumbly, speckled throughout; silt is calcareous 0.8
29. Shale, chalky, all partly weathered, dark yellowish orange to grayish orange, soft, laminated, contains some calcareous silt, speckled throughout; FOSSILS, Inoceramus cuvieri, Stramentum? n. sp., Proboscina n. sp. 6.6
28. Chalk, marly, silty, all partly weathered, dark yellowish orange, soft, blocky, speckled throughout 0.15
27. Gypsum, all stained dark yellowish orange, granular 0.05
26. Bentonite, two seams; upper is 0.1 foot thick and light gray to light olive gray (5Y6/1); lower is 0.07 foot thick, pale yellowish brown, weathers dark yellowish orange; bentonite seams separated by a 0.05-foot layer of prismatic gypsum and 0.13 foot of chalky shale 0.35
25. Shale, chalky, olive gray, weathers light olive gray (5Y6/1) to medium light gray, soft, tough, laminated, contains some calcareous silt; bentonite seam, 0.07 foot thick, pale yellowish brown, weathers dark yellowish orange, lies 0.13 foot below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Proboscina n. sp., shark tooth 2.9
24. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1), soft, tough, weathers blocky to crumbly, speckled throughout; silt is calcareous 0.5
23. Shale, chalky, olive gray (5Y3/2), weathers light gray to yellowish gray (5Y8/1), soft, tough, laminated, speckled throughout, virtually nonsilty 0.9
22. Chalk, marly, silty, light olive gray (5Y5/2), weathers yellowish gray (5Y8/1), very soft, very thinly layered to blocky, speckled throughout 0.6
21. Shale, like that in unit 23; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Serpula semicoalita, Proboscina n. sp. 4.3
20. Gypsum and bentonite; bentonite, 0.02 foot thick, weathers moderate yellowish brown, overlain by 0.18-foot gypsum seam stained dark yellowish orange by iron oxide 0.2
19. Shale, chalky, olive gray (5Y4/1), weathers light gray, soft, laminated, contains some calcareous silt 2.4
18. Bentonite, weathers dark yellowish orange 0.05
17. Shale, chalky, olive gray (5Y3/2), weathers light gray to medium light gray, soft, laminated, speckled throughout, contains a small amount of calcareous silt 0.55
16. Bentonite, light olive gray (5Y6/1), weathers dark yellowish orange to light brown (5Y6/4) 0.2
15. Shale, chalky, olive gray (5Y3/2), weathers light gray to medium gray, soft, tough, laminated, speckled throughout, contains a small amount of calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta 2.8
14. Limestone, chalky, silty, all partly weathered, dark yellowish brown to pale yellowish brown, softer than chalky limestone below, tough, speckled throughout; silt is calcareous 0.35
13. Shale, chalky, olive gray (5Y3/2), weathers light gray, soft, tough, laminated, speckled throughout, 0.1-foot seam of dark-yellowish-orange bentonite 0.6 foot below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Serpula semicoalita 1.6
12. Limestone, chalky, all partly weathered, dark yellowish brown, yellowish gray (5Y8/1), or grayish orange, medium hard, tough, speckled throughout; FOSSILS, Inoceramus cuvieri 0.2
11. Shale, like that in unit 13; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Serpula semicoalita 1.8
10. Limestone, like that in unit 12; FOSSILS, Inoceramus cuvieri 0.2
9. Shale, chalky, olive gray (5Y6/1), weathers light gray, soft, very tough, laminated, speckled throughout, contains very small amount of calcareous silt, very thin lenses of hard, pale-brown to grayish-orange biofragmental limestone near top; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari 4.2
8. Bentonite, light olive gray (5Y5/2), weathers dark yellowish orange 0.05
7. Shale, like that in unit 9 0.85
6. Limestone, chalky, olive gray (5Y4/1) to light olive gray (5Y5/2), weathers yellowish gray (5Y8/1), medium hard, tough, speckled throughout; FOSSILS, Inoceramus cuvieri?, Collignoniceras woollgari 0.5
5. Shale, chalky, to chalk, shaly, olive gray (5Y4/1), weathers light gray, medium hard, very tough, laminated, weathering platy, speckled throughout, one layer of closely spaced and two layers of widely spaced oblate -spheroidal to discoidal nodules of limestone, chalky, olive gray, weathering yellowish gray, medium hard, speckled throughout; FOSSILS, in nodules, Inoceramus latus?, one gastropod mold 6.0
4. Limestone, chalky, all partly weathered, yellowish gray (5Y8/1) to dark yellowish orange, medium hard, tough, speckled, top .08 foot separated from main bed by very thin layer of dark-yellowish-orange bentonitic? gypsum; FOSSILS, in top layer, recrystallized belemnites 0.55
3. Gypsum, nearly white, stained dark yellowish orange, granular, of coarse-sand size, bentonitic 0.25
2. Bentonite, nearly white, weathers dark yellowish orange 0.3
1. Shale, chalky, and limestone, chalky; shale olive gray (5Y4/1), weathers medium light gray to light gray, soft to medium hard, very tough, laminated, weathering platy, speckled throughout; limestone as three or four layers of widely to closely spaced oblate- spheroidal to discoidal nodules, olive gray (5Y4/1), weathering yellowish gray (5Y8/1), medium hard, speckled throughout, commonly having zone of limonitized chalk in middle parallel to bedding; FOSSILS, in nodules, Inoceramus labiatus; in shale, Collignoniceras woollgari, teleost scales 4.9
Total thickness of Fairport Chalk Member 89.9
Total thickness of Carlile Shale 306.1
Greenhorn Limestone (top of Fencepost limestone bed)  

Key section D. Composite of sections exposed at localities 32, 33, 34, 35, 36, 37, and 38 along North Fork of Solomon River and tributaries in eastern Osborne County.

Locality 32; SW sec. 24, T. 8 S., R. 12 W.
Niobrara Chalk Thickness,
feet
Fort Hays Limestone Member, lies with poorly exposed contact on:  
Carlile Shale  
Codell Sandstone Member  
78. Clay, arenaceous, and sandstone, argillaceous, silty; clay, light olive gray (5Y5/2), dominates unit; sandstone, light olive gray (5Y6/1), weathers dark yellowish orange, soft, sparse cement, nonresistant 2.4
Total thickness of Codell Sandstone Member 2.4
Blue Hill Shale Member  
77. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, much powdery iron sulfate and limonite along joints and bedding planes, base of unit finely arenaceous grading upward to very slightly silty beds 8.4
76. Sandstone, argillaceous, silty, and shale, silty, medium dark gray to light olive gray (5Y6/1), medium hard, blocky; sand fine to very fine grained; shale at top and base transitional with adjacent units 5.8
75. Shale and mudstone, silty and arenaceous, dark gray to light olive gray (5Y6/1), soft, nonresistant; sand grains fine to very fine; unit transitional to adjacent units 7.1
74. Sandstone, light olive gray, weathers pale yellowish orange, me- dium hard, fine to very fine grained, blocky, streaked with dark- gray mudstone, locally harder, more pure, and calcareous, bed- ding thin, irregular; contains sparse concretions, calcareous, sandy, as much as 3.5 feet thick, matrix light olive gray (5Y6/1), weathers same or stained dark yellowish orange by limonite, very hard, granular to smooth surface, septarian but unlike any septarian concretions below 1.4
73. Sandstone, argillaceous, and shale, arenaceous, medium dark gray to light olive gray (5Y6/1), soft to medium hard, blocky, nonresistant; sandstone streaked with clay; shale streaked with sandstone 10.5
72. Concretions, calcareous, septarian, matrix olive gray (5Y8/1), weathers grayish orange, dark yellowish orange, or yellowish gray (5Y8/1), outer 0.5 foot of concretions weathers granular and crumbles readily; adjacent rock in zone is sandstone, argillaceous, silty, light olive gray (5Y5/2), weathers yellowish gray (5Y7/2), soft, friable, blocky, fine to very fine grained 7.3
71. Shale, arenaceous, and sandstone, argillaceous, light olive gray (5Y5/2), weathers grayish orange, soft, nonresistant, noncalcareous 3.2 70. Shale, clayey, dark olive gray (5Y3/1) to dark gray, weathers medium gray, blocky to fissile, weathers flaky, with abundant disseminated grains and very thin discontinuous laminae of very fine grained noncalcareous sand; unit has some thin beds of soft to medium-hard, fine-grained, noncalcareous sandstone that weathers dark yellowish orange owing to abundant limonite 18.4
69. Concretions, calcareous, septarian, matrix dark gray, weathers yellowish gray (5Y8/1), outer surface granular and broadly bulbous, septa dark yellowish brown to dusky yellowish brown; shale in zone dark gray, weathers medium gray, blocky to poorly fissile; very thin discontinuous laminae of very fine grained sand 3.9
68. Shale, clayey, silty, and very finely arenaceous, dark gray, weathers medium gray, blocky to poorly fissile, weathers flaky; silt and sand in very thin discontinuous laminae 8.0
67. Concretions, like those in unit 69; shale in zone dark gray, weathers medium gray, blocky to poorly fissile; abundant disseminated silt and very fine sand 3.2
66. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty throughout, abundant limonite and iron sulfate staining along joints and bedding planes, melanterite taste, pyrite concretions locally, small selenite crystals scattered throughout; unit contains a few isolated calcareous septarian concretions; FOSSILS, fish scales 18.0
65. Concretions, calcareous, moderately septarian, matrix dark olive gray (5Y3/2), weathers yellowish gray (5Y8/1), septa dark yellowish orange; shale closest to sides of concretions weathers light brown (5YR5/6); rest of shale in zone dark gray, weathers medium gray, blocky to fissile, weathers flaky, slightly silty; limonite and iron sulfate stains on joints and bedding planes 1.1
64. Shale, clayey, like that in unit 65, selenite crystals abundant, pyrite concretions locally; bentonite seam, 0.01 foot thick, lies about 0.4 foot below top; sandy shale, 0.5 foot thick, limonitic, lies about 2 feet above base 4.5
63. Concretions, calcareous, septarian, widely scattered, matrix dark gray, weathers yellowish gray (5Y8/1); septa dusky brown, weather grayish orange; shale in zone like that in unit 65 2.3
62. Shale, clayey, like that in unit 65; FOSSILS, bone fragment 11.0
61. Concretions, calcareous, septarian, matrix dark olive gray (5Y3/1), weathers dark yellowish orange, septa dark yellowish orange, concretions more irregular than those above; shale in zone olive gray (5Y4/1), weathers medium gray, blocky to fissile, weathers flaky 2.2
60. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, limonite and iron sulfate stains on joints and bedding planes, melanterite taste; bentonite seam 0.04 foot thick, light olive gray (5Y6/1), weathers dark yellowish orange, lies 7.5 feet above base; concretions, calcareous, moderately septate, matrix olive gray (5Y4/2), weathers light gray to yellowish gray (5Y7/2), small, very hard, very fossiliferous, lie in lower 2 feet of unit; FOSSILS, Inoceramus flaccidus, I. cuvieri, Ostrea congesta, Bellifusus willistoni, Collignoniceras, hyatti, Scaphites carlilensis, Proplacenticeras pseudoplacenta 8.2
59. Concretions, calcareous, septarian, matrix dark olive gray (5Y3/1), weathers conspicuous dark yellowish orange, very hard, wartlike or ridgelike tuberosities characterize larger concretions, smaller concretions smoothly oblate spheroidal, septa dark yellowish orange; shale in zone olive gray (5Y4/1), weathers medium gray, blocky to fissile, weathers flaky, slightly silty, limonitic staining along joints and bedding planes; FOSSILS, same as in unit 60 3.3
Locality 38; NE sec. 14, T. 8 S., R. 12 W.
58. Shale, clayey, dark gray, weathers medium gray, blocky to fissile, weathers flaky, very slightly silty, some ferruginous staining on joints and bedding planes; unit contains numerous small calcareous septarian concretions at top and moderately calcareous, ferruginous, finely sandy concretions in upper 3 to 4 feet; matrix of ferruginous concretions olive gray (5Y4/1), weathers dark yellowish orange or pale reddish brown 10.5
57. Concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers dark yellowish orange, septa weather dark yellowish orange, lowest concretions underlain and bordered laterally by grayish-brown sandy shale or argillaceous fine-grained sandstone; shale in zone like that in unit 58 4.5
56. Shale, like that in unit 58, contains a few calcareous septarian concretions 10.5
55. Shale, like that in unit 58; top of unit marked by zone of widely spaced concretions, calcareous, septarian, matrix olive gray (5Y4/1), weathers grayish orange 7.0
54. Bentonite, finely arenaceous, medium gray, weathers very light gray, biotitic; unit contains pyrite nodules as much as 0.4 foot wide and 0.15 foot thick, very hard, calcitic 0.15
53. Shale, clayey, dark gray, weathers medium gray to light olive gray (5Y6/1), blocky to fissile, weathers flaky, very slightly silty, limonite and iron sulfate staining along joints and bedding planes, small selenite crystals common throughout, large twinned selenite crystals common in lower half; concretions, very hard, brittle, calcite veined, oblate spheroidal to discoidal, in zone 0.15 foot thick and 4 feet below top; FOSSILS, in shale, Inoceramus cuvieri, juvenile Collignoniceras, shark tooth, teleost bones and scales; in concretions, Inoceramus cf. I. flaccidus 22.4
Total thickness of Blue Hill Shale Member 182.9
Fairport Chalk Member  
52. Shale, chalky, dark gray, weathers grayish orange, soft, laminated, contains some calcareous silt, speckled in lower part grading up- ward to progressively less calcareous clay shale; FOSSILS, Inoceramus latus 8.0
51. Chalk, marly, silty, light olive gray, weathers yellowish gray (5Y7/2), soft, nonresistant, blocky, speckled throughout; silt is calcareous 0.7
50. Shale, chalky, olive gray (5Y4/1), soft, tough, laminated, slightly speckled throughout, contains some calcareous silt; FOSSILS, Inoceramus latus 2.0
49. Bentonite, yellowish gray (5Y8/1), weathers nearly white 0.01
48. Shale, chalky, dark gray, weathers medium light gray to grayish orange, soft, tough, laminated, speckled throughout, contains some calcareous silt and abundant organic remains; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari 8.0
Locality 34; SW sec. 1, T. 8 S., R. 12 W.
47. Chalk, marly, very silty, olive gray (5Y4/1), weathers medium gray, medium hard but not very resistant, weathers blocky, speckled throughout; FOSSILS, Inoceramus latus 0.55
46. Shale, chalky, dark olive gray (5Y3/1), weathers medium gray, soft, laminated, speckled throughout, contains small amount of calcareous silt 0.8
45. Bentonite, nearly white, weathers dark yellowish orange 0.06
44. Shale, like that in unit 46; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari 4.5
Locality 35; NW NW sec. 31, T. 7 S., R. 11 W.
43. Chalk, marly, silty, moderate yellowish brown, weathers grayish orange to yellowish gray (5Y8/1), soft, tough, blocky, speckled throughout; FOSSILS, Inoceramus cuvieri, I. latus, Collignoniceras woollgari 0.4
42. Shale, chalky, light olive gray (5Y5/2), weathers yellowish gray to medium light gray, soft, laminated, speckled throughout, contains some calcareous silt; 0.05-foot dark-yellowish-orange ferruginous zone 1.2 feet above base; 0.02-foot dark- yellowish-orange bentonite seam 0.4 foot below top; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari 2.8
41. Bentonite, pale grayish orange, weathers dark yellowish orange 0.13
40. Shale, chalky, olive gray (5Y4/1, 5Y3/1), weathers medium light gray to light gray, soft, tough, laminated, speckled throughout, contains some calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta 1.7
39. Chalk, marly, silty, dark olive gray (5Y3/1), weathers light olive gray, soft, blocky, nonresistant, speckled throughout; silt is calcareous 0.15
38. Shale, like that in unit 40, gypsiferous and ferruginous layers in lower part; FOSSILS, Conopeum n. sp., Serpula tenuicarinata, Inoceramus cuvieri, I. latus, Ostrea congesta, Stramentum? n. sp. 5.1
37. Chalk, marly, silty, dark olive gray (5Y3/1), weathers light olive gray (5Y6/1) to light gray, soft, blocky, speckled throughout, ferruginous layer 0.15 foot above base; FOSSILS, Serpula tenuicarinata, Inoceramus cuvieri 0.5
36. Shale, chalky, olive gray (5Y3/1), weathers medium light gray to light gray, soft, laminated, speckled throughout, contains some calcareous silt; contains local lenses of silty marly chalk at base; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta 0.75
35. Bentonite, nearly white, weathers dark yellowish orange 0.08
34. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1) to light gray, soft, tough, blocky, locally shaly, speckled throughout; silt is calcareous; unit pinches and swells 0.25
33. Shale, like that in unit 36; 0.05-foot ferruginous layer, dark yellowish orange, containing deeply weathered pyrite nodules in center, bentonitic and gypsiferous, lies 0.45 foot above base; FOSSILS, Serpula tenuicarinata, Inoceramus cuvieri, Ostrea congesta, Stramentum? n. sp. 7.1
32. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1) , soft to medium hard, weathers blocky, speckled throughout; silt is calcareous; FOSSILS, Inoceramus cuvieri, coprolite 0.6
31. Shale, chalky, olive gray (5Y4/1), weathers medium gray, medium hard, tough, laminated, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta 1.8
30. Chalk, marly, silty, olive gray (5Y4/1), weathers light olive gray (5Y6/1), soft to medium hard, weathers blocky, locally shaly, speckled throughout; silt is calcareous; FOSSILS, Inoceramus cuvieri 0.4
Locality 37; NE sec. 1, T. 8 S., R. 12 W.
29. Shale, chalky, dark olive gray (5Y3/1), weathers medium light gray, soft, tough, laminated, speckled throughout, contains very small amount of calcareous silt and scattered limonite nodules; persistent zone of limonite nodules lies about 1.9 feet below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta 7.4
Locality 36; SE NE sec. 21, T. 7 S., R. 11 W.
28. Bentonite, light olive gray (5Y6/1), weathers dark yellowish orange, limonite and iron sulfate staining 0.11
27. Shale, like that in unit 25 0.25
26. Bentonite, nearly white, weathers dark yellowish orange 0.05
25. Shale, chalky, dark olive gray (5Y3/1), weathers medium light gray, soft, tough, laminated, speckled throughout, contains calcareous silt, locally limonitic at top; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari 4.6
24. Chalk, marly, silty, olive gray (5Y4/1), weathers light gray, medium hard, tough, shaly at top and base, speckled throughout; silt is calcareous; layer of limonitized pyrite nodules lies 0.25 foot above base 0.6
23. Shale, chalky, olive gray (5Y4/1), weathers light gray, soft, tough, laminated, contains some calcareous silt; unit has several very thin layers of shaly chalk; 0.25-foot ferruginous zone that contains limonite nodules lies 1.3 feet above base; scattered limonite nodules about 1 foot below top; FOSSILS, Inoceramus cuvieri, I. latus, Ostrea congesta, Collignoniceras woollgari 7.4
22. Chalk, marly, silty, olive gray (5Y4/1), weathers yellowish gray (5Y8/1), soft, shaly to blocky, nonresistant, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.25
21. Shale, chalky, dark olive gray (5Y3/1), weathers light gray to yellowish gray (5Y8/1), medium hard, tough, laminated, weathers platy, speckled throughout, contains some calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.6
20. Bentonite, light olive gray (5Y6/1), weathers dark yellowish orange 0.07
19. Shale, like that in unit 21; FOSSILS, Ostrea congesta 2.9
Locality 33; NW1/4 sec. 25, T. 7 S., R. 11 W.
18. Bentonite, weathers dark yellowish orange, lies on 0.05-foot seam of nearly white powdery gypsum 0.06
17. Shale, chalky, light olive gray (5Y5/2), weathers yellowish gray, soft, tough, laminated, speckled throughout, contains small amount of calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.5
16. Bentonite, weathers dark yellowish orange, contains nearly white powdery gypsum 0.2
15. Shale, chalky, olive gray (5Y4/1), weathers light gray, soft, tough, laminated, weathers platy, speckled throughout, contains small amount of calcareous silt; 0.01-foot bentonite seam, dark yellowish orange, lies 0.95 foot below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta 3.5
14. Limestone, chalky, very silty, olive gray (5Y4/1), weathers light gray, soft, nonresistant, blocky, weathers crumbly, speckled throughout, local veins of calcite; FOSSILS, Inoceramus cuvieri, Ostrea congesta, Collignoniceras woollgari 0.7
13. Shale, like that in unit 15; 0.01-foot bentonite seam, dark yellowish orange, lies 0.5 foot below top; FOSSILS, Inoceramus cuvieri, Ostrea congesta 2.0
12. Limestone, chalky, all weathered dark yellowish orange, gently undulatory top and base, medium hard, speckled throughout, moderately resistant 0.23
11. Shale, chalky, olive gray (5Y4/1), weathers pale grayish orange, soft, tough, laminated, speckled throughout, contains very small amount of calcareous silt; FOSSILS, Inoceramus cuvieri, Ostrea congesta, teleost remains 2.3
10. Limestone, chalky, olive gray (5Y4/1), weathers dark yellowish orange, undulatory top and base, medium hard, resistant, speckled throughout; FOSSILS, Inoceramus cuvieri, Ostrea congesta 0.25
9. Shale, chalky, olive gray (5Y4/1), weathers light gray to very light gray, soft, tough, laminated, speckled throughout, contains small amount of calcareous silt; abundant powdery gypsum along bedding planes; 0.01-foot silty chalk layer about 0.7 foot below top; FOSSILS, Ostrea congesta, teleost vertebra 4.6
8. Bentonite, dark yellowish orange, locally a central layer of powdery gypsum, maximum thickness 0.03
7. Shale, like that in unit 9; FOSSILS, Ostrea congesta, teleost scales 0.9
6. Limestone, chalky, all partly weathered grayish orange to pale yellowish orange, medium hard, moderately resistant, speckled throughout, bed undulatory at top and base, maximum thickness 0.5 foot; FOSSILS, Inoceramus cuvieri 0.15
5. Shale, chalky, olive gray (5Y4/1), weathers very light gray, light gray, and grayish orange, soft, tough, laminated, weathers platy, speckled throughout, few thin layers of dark- yellowish- orange chalky limestone; unit is shaly chalk near base; layer of widely spaced oblate -spheroidal chalky limestone nodules lies 3.3 feet above base, limestone light olive gray (5Y5/2), weathers yellowish gray (5Y8/1); FOSSILS, Inoceramus cuvieri, I. labiatus (broad form), Ostrea congesta, teleost scales 7.5
4. Limestone, chalky, light olive gray (5Y5/2), weathers yellowish gray (5Y8/1), medium hard, tough, evenly bedded, resistant, speckled throughout; top 0.07-foot layer has belemnite? molds and is separated from rest of unit by 0.05-foot layer of bentonitic ferruginous granular gypsum; FOSSILS, Inoceramus sp., belemnite? molds, Collignoniceras woollgari 0.5
3. Gypsum, nearly white, stained dark yellowish orange by limonite, coarse grained to granular, soft, bentonitic 0.23
2. Bentonite, nearly white, weathers dark yellowish orange 0.25
1. Shale, chalky, olive gray (5Y4/1), weathers medium light gray to light gray, soft, tough, laminated, speckled throughout, contains small amount of calcareous silt; unit contains three discontinuous nodular layers of limestone, chalky, light olive gray (5Y5/2), weathering yellowish gray (5Y8/1), medium hard, tough, resistant, speckled throughout; FOSSILS, Inoceramus labiatus, Collignoniceras woollgari, fish remains 4.4
Total thickness of Fairport Chalk Member 98.9
Total thickness of Carlile Shale 284.2
Greenhorn Limestone (not measured)  

List of Localities

Measured sections are plotted on Plate 1, and their localities are shown in the inset map thereon.

  1. NW sec. 19, T. 17 S., R. 22 W., Ness County. Draw in bluff of tributary to Walnut Creek, 9 1/2 miles northeast of Ness City. Upper part of Blue Hill Member.
  2. Center sec. 30, T. 20 S., R. 26 W., Ness County. South bluff of Hackberry Creek, 11 miles south and 2 miles west of Beeler. Upper part of Blue Hill Member.
  3. SW SE sec. 3, T. 19 S., R. 22 W., Ness County. Abandoned quarry and ditch on north side of road, 3 miles west-southwest of Bazine. Lower part of Fairport Member.
  4. NE NW sec. 6, T. 22 S., R. 24 W., and SW SE sec. 31, T. 21 S., R. 24 W., Hodgeman County. Bluff and road bank along east-west county road, approximately 8 1/2 miles northwest of Jetmore. Middle part of Fairport Member.
  5. SE sec. 36, T. 21 S., R. 26 W., and NW sec. 6, T. 22 S., R. 25 W., Hodgeman County. Bluffs along tributary to Pawnee River, approximately 14 miles west-northwest of Jetmore. Lower part of Fairport Member.
  6. N2 sec. 2, T. 22 S., R. 29 W., Finney County. Gullies and bluffs on north wall of valley of Pawnee River, 12 miles northwest of Kalvesta. Upper part of Blue Hill Member.
  7. NE sec. 11, T. 23 S., R. 24 W., Hodgeman County. Bluff on south wall of Buckner Creek valley, approximately 1 1/2 miles southwest of Jetmore. Lower part of Fairport Member.
  8. SW SE sec. 27, T. 22 S., R. 26 W., Hodgeman County. Ditch on north side of county road, 14 miles west and 1 mile north of northwest corner of Jetmore. Middle part of Fairport Member.
  9. SW sec. 11, T. 22 S., R. 26 W., Finney County. Bluffs and cut banks along south side of Pawnee River, 7 miles north-northwest of Kalvesta. Upper part of Fairport Member and lower part of Blue Hill Member.
  10. Sec. 22 and NE sec. 27, T. 19 S., R. 23 W., Ness County. Banks of intermittent tributary to Walnut Creek and cut on south side of east-west county road, approximately 5 1/2 miles south-southeast of Ness City. Lower part of Fairport Member.
  11. SW SW sec. 33, T. 16 S., R. 19 W., Rush County. Cut bank and bluffs on south side of Big Timber Creek, 4 miles north of Hargrave. Middle part of Fairport Member.
  12. NE sec. 27, T. 15 S., R. 18 W., Ellis County. Road cut on east side of U.S. Highway 183, approximately 1 mile northeast of Schoenchen. Lower part of Fairport Member.
  13. NE SE sec. 21, T. 13 S., R. 19 W., Ellis County. South bluff of Big Creek valley, 6 miles west-northwest of Hays. Upper part of Blue Hill Member and Codell Member.
  14. S2 sec. 25, T. 19 S., R. 19 W., Rush County. Stream banks and bluffs of a western tributary to Otter Creek, approximately 8 miles south-southwest of Rush Center. Lower part of Fairport Member.
  15. NE sec. 8, T. 17 S., R. 21 W., Ness County. Bluffs in headwaters region of Black Stub Gulch, 10 miles north and 1 mile east of Bazine. Upper part of Blue Hill Member and Codell Member.
  16. SW SE sec. 10 and NW NE sec. 15, T. 15 S., R. 20 W., Ellis County. Cut bank on south side of Smoky Hill River, approximately 13 1/2 miles southwest of Hays. Upper part of Fairport Member.
  17. NE sec. 21 and N2 sec. 22, T. 15 S., R. 20 W., Ellis County. Stream bank and bluffs on south wall of Smoky Hill River valley, approximately 15 miles southwest of Hays. Upper part of Fairport Member and Blue Hill and Codell Members.
  18. SE SE sec. 4, T. 11 S., R. 18 W., Ellis County. Cut bank and bluff of northern tributary to Saline River, 17 miles north of Hays. Upper part of Blue Hill Member and Codell Member.
  19. E2 sec. 21, T. 11 S., R. 17 W., Ellis County. Cut banks of southern tributary to Saline River, approximately 16 miles north-northeast of Hays. Upper part of Fairport Member and lower part of Blue Hill Member.
  20. NW sec. 32, T. 22 S., R. 42 W., Hamilton County. Bank of intermittent stream and tributary draw, 5 miles north-northeast of Coolidge. Upper part of Fairport Member and lower part of Blue Hill Member.
  21. NE sec. 7, T. 23 S., R. 42 W., Hamilton County. Cut bank and bluff of intermittent northern tributary of Arkansas River, 3 miles northeast of Coolidge. Lower part of Fairport Member.
  22. SW SW sec. 25, T. 22 S., R. 42 W., Hamilton County. Bluffs on west side of intermittent-stream valley, 8 miles northeast of Coolidge. Upper part of Blue Hill Member and Codell Member.
  23. W2 SW sec. 21, T. 11 S., R. 17 W., Ellis County. Gully and bluff on south wall of Saline River valley, approximately 15 miles north-northeast of Hays. Upper part of Blue Hill Member and lower part of Codell Member.
  24. SW SE sec. 22, T. 11 S., R. 17 W., Ellis County. Bluff on south wall of Saline River valley, 16 miles north-northeast of Hays. Upper part of Blue Hill Member and Codell Member.
  25. SW sec. 29 and SE SE sec. 30, T. 11 S., R. 16 W., Ellis County. Intermittent-stream banks, gullies, and bluffs in south wall of Saline River valley, approximately 5 miles west and 1 mile north of Fairport. Upper part of Fairport Member and Blue Hill and Codell Members.
  26. SE sec. 29, T. 11 S., R. 16 W., Ellis County. Banks and bluff of intermittent southern tributary to Saline River, 4 1/2 miles west and 1 mile north of Fairport. Lower part of Fairport Member.
  27. NE SE sec. 18, T. 15 S., R. 19 W., Ellis County. Cut bank and tributary draw on south side of Smoky Hill River, 7 1/2 miles west-northwest of Schoenchen. Middle part of Fairport Member.
  28. NE sec. 3, T. 11 S., R. 17 W., Ellis County. Gullies and road cut on west side of north-south county road, approximately 4 miles south and 1/2 mile west of Codell. Upper part of Blue Hill Member and Codell Member.
  29. NE sec. 5, T. 13 S., R. 15 W., Russell County. Road cut on Fairport-Gorham road, 5 miles north of Gorham. Lower part of Fairport Member.
  30. NE sec. 1, T. 13 S., R. 16 W., Ellis County. Cut bank on south side of small creek, 6 miles north and 2 miles east of Walker. Middle part of Fairport Member.
  31. NE sec. 20 and NW sec. 21, T. 9 S., R. 10 W., Mitchell County. Gullies in north face of conspicuous butte in Blue Hills, 5 1/2 miles south and 1 mile east of Tipton. Middle part of Blue Hill Member.
  32. SW sec. 24, T. 8 S., R. 12 W., Osborne County. Gullies on south end of prominent mesa, 8 miles south-southeast of Osborne. Upper part of Blue Hill Member and Codell Member.
  33. NW sec. 25, T. 7 S., R. 11 W., Osborne County. Cut banks of South Fork of Solomon River and southern tributary, 6 miles south-southeast of Downs. Lower part of Fairport Member.
  34. SW sec. 1, T. 8 S., R. 12 W., Osborne County. Cut bank on Twin Creek, approximately 6 miles southeast of Osborne. Middle part of Fairport Member.
  35. NW NW sec. 31, T. 7 S., R. 11 W., Osborne County. Cut bank on Twin Creek, 5 1/2 miles east-southeast of Osborne. Middle part of Fairport Member.
  36. SE NE sec. 21, T. 7 S., R. 11 W., Osborne County. Cut bank on north side of South Fork of Solomon River, approximately 5 miles south of Downs. Middle part of Fairport Member.
  37. NE sec. 1, T. 8 S., R. 12 W., Osborne County. Cut bank on Twin Creek, ap- proximately 6 miles southeast of Osborne. Middle part of Fairport Member.
  38. NE sec. 14, T. 8 S., R. 12 W., Osborne County. Cut banks on Twin Creek and intermittent easterly tributary, 6 1/2 miles south-southeast of Osborne. Upper part of Fairport Member and lower part of Blue Hill Member.
  39. SE SE sec. 3 and NE NE sec. 10, T. 7 S., R. 13 W., Osborne County. Bluff on north valley wall of South Fork of Solomon River, approximately 3 1/2 miles west-northwest of Osborne. Upper part of Blue Hill Member and Codell Member.
  40. NE sec. 18, T. 2 S., R. 6 W., Jewell County. Bluff at south end of dam on Lovewell Lake, approximately 3 miles west-northwest of Lovewell. Upper part of Blue Hill Member and Codell Member.
  41. SW sec. 2, T. 2 S., R. 5 W., Republic County. Artificial cut and gulley in south bluff of Republican River valley, approximately 8 1/2 miles north and 2 1/2 miles east of Courtland. Upper part of Fairport Member and lower part of Blue Hill Member.
  42. SW SE sec. 9, T. 5 S., R. 7 W., Jewell County. Cut bank and bluff on south side of Buffalo Creek, approximately 4 miles southeast of Jewell. Lower part of Fairport Member.
  43. SE SE sec. 16, T. 3 S., R. 7 W., Jewell County. Road cut on north side of U.S. Highway 36, 3/4 mile west of Montrose. Upper part of Blue Hill Member and Codell Member.
  44. E2 sec. 14, T. 2 S., R. 6 W., Jewell County. Gullies and bluff in south valley wall of White Rock Creek, approximately 11/2 miles northeast of Lovewell. Upper part of Blue Hill Member.
  45. NE SE sec. 27, T. 5 S., R. 13 W., Smith County. Cut bank on south side of North Fork of Solomon River, 1 mile south of Harlan. Middle part of Blue Hill Member.
  46. SW SE sec. 34, T. 4 S., R. 11 W., Smith County. Bluff of west valley wall of Oak Creek, approximately 10 1/2 miles south of Lebanon. Upper part of Blue Hill Member and Codell Member.
  47. SW SW sec. 4, T. 15 S., R. 21 W., Trego County. Bluff on south valley wall of Smoky Hill River, approximately 14 1/2 miles southeast of Trego Center. Upper part of Blue Hill Member and Codell Member.
  48. N2 SW sec. 25, T. 8 S., R. 12 W., Osborne County. Gullies near base of bluffs on north side of county road, approximately 8 1/2 miles south-southwest of Osborne. Collecting locality in middle part of Blue Hill Member.
  49. NW NW sec. 24, T. 7 S., R. 14 W., Osborne County. Cut bank on southern tributary to Medicine Creek, 3 miles west-southwest of Bloomington. Collecting locality in middle part of Blue Hill Member.
  50. SE sec. 4, T. 9 S., R. 10 W., Mitchell County. Gullies in slopes of Blue Hills, approximately 3 1/2 miles south-southeast of Tipton. Upper part of Blue Hill Member. This is Morrow's collecting locality for holotypes of Scaphites carlilensis, and Binneyites aplatus.
  51. NE sec. 36, T. 4 S., R. 8 W., Jewell County. Cut bank on Buffalo Creek near southwest corner of Jewell. Collecting locality in middle part of Fairport Member.
  52. NW NW sec. 13, T. 2 S., R. 7 W., Jewell County. Exposures on hillside, approximately 4 miles west-northwest of Lovewell. Collecting locality in upper part of Blue Hill Member.
  53. NE NE sec. 30, T. 11 S., R. 16 W., Ellis County. Bluff of small tributary to Saline River, approximately 5 1/2 miles west-northwest of Fairport. Collecting locality in upper part of Fairport Member.
  54. NW sec. 32, T. 11 S., R. 15 W., Russell County. Exposure at top of bluff overlooking Saline River, approximately 1 mile northeast of Fairport. Collecting locality in lower part of Fairport Member.
  55. SE sec. 6, T. 12 S., R. 15 W., Russell County. Exposures along Saline River, 1 mile southeast of Fairport. Collecting locality in lower part of Fairport Member.
  56. W2 sec. 36, T. 14 S., R. 22 W., Trego County. Excavation for Cedar Bluff Dam. Collecting locality in upper part of Fairport Member? that is cited by Matsumoto and Miller (1958).
  57. SW sec. 31, T. 12 S., R. 15 W., Russell County. Ditch on east side of county road, 6 miles north of U.S. Highway 40. Collecting locality in middle part of Fairport Member.
  58. SE sec. 18, T. 12 S., R. 15 W., Russell County. Ditch on east side of county road, 3 miles south of Fairport. Collecting locality in lower part of Fairport Member.

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Kansas Geological Survey, Geology
Placed on web March 11, 2010; originally published May 1962.
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