|
| Unit No. |
Description |
Thickness |
|
15
|
Concealed above to Wreford, some lite buff shale just above last unit
|
|
|
14
|
Shale, buff, thin, laminated, very calcareous, Bryozoa, brachiopods, crinoids
|
1 ft.
|
|
13
|
Limestone, light gray buff, weathers buff, argillaceous, pelecypods and gastropod limestone. Lower 1.5 feet massive ledge forming, upper 0.8 foot thick bedded and non-resistant, shaly
|
2 ft.
|
|
12
|
Shale, light gray buff, rubbly, very calcareous
|
5 ft.
|
|
11
|
Shale, purple to grass-green, non-calcareous, hackly
|
1.5 ft.
|
|
10
|
Shale, light gray, buff, rubbly, very calcareous
|
1.5 ft.
|
|
9
|
Siltstone, brownish red, soft, thinly laminated, with some interlayering of pea-green siltstone
|
3.3 ft.
|
|
8
|
Limestone, lavender-gray, dense, massive, nodular and argillaceous at base and top. Many small snails at top and some ostracodes?
|
1.5 ft.
|
|
7
|
Clay, olive gray with nodules of soft calcium carbonate
|
0.4 ft.
|
|
6
|
Limestone, light gray, dense, (partly) and coarsely crystalline (partly), coarsely crystalline areas surround dense areas as a cement
|
0.2 ft.
|
|
5
|
Shale, black fissile, carbonaceous, becoming grayish brown at top due to leacing
|
1.5 ft.
|
|
4
|
Light gray limestone, weathers buff, argillaceous, thick bedded with pelecypods
|
3.8 ft.
|
|
3
|
Shale, olive-gray, fissile, in part blocky clay
|
4.3 ft.
|
|
2
|
Limestone, light gray, thick-bedded, much pitted, dense, parts are oolitic with thin edgewise conglomerate, near shore deposit with considerable wave action. Clams, snails, ostracods. Eiss
|
3 ft.
|
|
1
|
Limestone, light brown, rubbly, soft, earthy, argillaceous, weathers out in nodules and lumps, numerous remains of crinoid stems, and some clams, grades gradually upward into next overlying unit. Upper part more rest., thicker bedded, less argillaceous.
|
3 ft.
|
|
