| Unit No. |
Description |
Thickness |
|
46
|
Limestone - gray with abundant chert (Wreford)
|
+/- 6 ft.
|
|
45
|
Shale - and covered slope, altimeter
|
62 ft.
|
|
44
|
Limestone - light gray massive, numerous Fusulines (Cottonwood)
|
+/- 4 ft.
|
|
43
|
Shale and covered slope
|
27 ft.
|
|
42
|
Limestone - yellow with angular fragments of blue dense fine grained limestone embedded in lower part, matrix faintly and finely laminated (U. Neva)
|
1.5 ft.
|
|
41
|
Shale - gray +/- covered
|
0.7 ft.
|
|
40
|
Limestone - gray, massive, upper part pitted, proous, appears spongy, lower part brecciated
|
1.9 ft.
|
|
39
|
Shale and limestone - interbedded, gray to yellow T. obesus & Ambocoelia near top
|
3.9 ft.
|
|
38
|
Limestone - light ash gray, weathers yellow, very massive but +/- chalky, soft +/- rotten small Fusulines & fine Osagea-like growth around fossil fragment
|
2.5 ft.
|
|
37
|
Shale greenish to brownish, cl soft, lower part has thin papery sandstone plates
|
7.2 ft.
|
|
36
|
Limestone - light ash gray dense fine, weathers yellow, top 0.5 feet shaly, lower middle part massive & vertical veins weathering in relief
|
1.9 ft.
|
|
35
|
Shale - greenish cl soft +/- massive, but thinly fissile near top
|
3.9 ft.
|
|
34
|
Limestone - light ash gray, fine dense hard, massive to even platy beds that break in angular even blocks layers scale in large smooth sheets, numerous pelecypods (Aviculopecten, etc.) near base
|
6.9 ft.
|
|
33
|
Shale - dark black cl fissile, weathers light yellow spotted, has Spirifer crinoid fragments, etc.
|
8 ft.
|
|
32
|
Limestone - light ash gray hard fine thin bedded to platy, few fossils in upper part, grades to hard calcareous shale
|
4.2 ft.
|
|
31
|
Shale - yellow & bluish gray cl, hard
|
2.5 ft.
|
|
30
|
Covered
|
1.5 ft.
|
|
29
|
Shale - green hard cl crumbly
|
1.1 ft.
|
|
28
|
Shale black hard cl weathers crumbly, nodular gray layers of hard limestone near base
|
4.5 ft.
|
|
27
|
Covered
|
2 ft.
|
|
26
|
Limestone - ash gray to yellow, earthy
|
1 ft.
|
|
25
|
Covered
|
2.5 ft.
|
|
24
|
Limestone - bluish gray hard fine, medium beds
|
1.7 - 2.2 ft.
|
|
23
|
Shale - bluish to brown gray cl, dark, abundant fossils in lower part, echinoid spines, Productus Spirifer, Derbya, etc. A hard limy seam 0.5 occurs below 0.7 yellow cl that weathers powdery
|
3.7 ft.
|
|
22
|
Limestone - light gray yellow, very massive hard, single bed except lower 0.8 which is softer & +/- shaly & carries few Fusulines rest of bed unfossiliferous
|
5.9 ft.
|
|
21
|
Shale - light yellowish gray papery fissile cl with 1.2 inch dark seam at top
|
2.7 ft.
|
|
20
|
Limestone - light ash gray dense fine earthy, massive
|
0.6 ft.
|
|
19
|
Shale gray brown cl hard +/- calcareous
|
8.4 ft.
|
|
18
|
Mudstone - yellowish weathers creamy, calcareous, massive to shelly, unfossiliferous
|
3 ft.
|
|
17
|
Shale - brownish gray, silty to sandy +/- unevenly bedded, unfossiliferous
|
6 ft.
|
|
16
|
Covered
|
5.9 ft.
|
|
15
|
Limestone - buff in two layers, massive (top Long Creek)
|
2.5 ft.
|
|
14
|
Limestone - yellowish brown shaly rotten
|
0.7 ft.
|
|
13
|
Shale - yellowish abundant Fusulines
|
1 ft.
|
|
12
|
Limestone - gray, soft, Fusulines abundant
|
3.5 ft.
|
|
11
|
Shale - gray, calcareous, Fusulines abundant
|
5.6 ft.
|
|
10
|
Limestone - dark blue shelly hard, Fusulines at top
|
1.2 ft.
|
|
9
|
Coverd
|
12.6 ft.
|
|
8
|
Shale bluish, fossiliferous
|
1.8 ft.
|
|
7
|
Shale - greenish brown cl to sandy soft unfossiliferous
|
3.6 ft.
|
|
6
|
Limestone - upper 0.9 feet greenish gray, weathesr yellow, rich in Fusulines, lower 1.3 feet blue hard, fusulines rare or absent, has Spirifer Prod
|
2.2 ft.
|
|
5
|
Shale - greenish cl, covered below
|
5.1 ft.
|
|
4
|
Shale & shaly limestone - light greenish brown, very fossiliferous, large Productus Spirifer, etc.
|
1.5 ft.
|
|
3
|
Shale - dark blue to black, carbonaceous, fissile, weathers brownish to bluish gray, Derbya, crinoid fragments, etc. fossiliferous
|
0.8 ft.
|
|
2
|
Limestone - bluish hard dense, massive, filled with small fusulines, top marked by peculiar double "deer foot" trail, some crinoids
|
1.5 ft.
|
|
1
|
Shale - black fissile cl, exposed to river
|
1 ft.
|
