 |
Unit No. |
Description |
Thickness ft. |
17 |
Base Florence flint |
-- |
16 |
Covered |
66 |
|
Schroyer limestone |
|
15 |
Limestone,. massive, almost entirely replaced by flint,
with quartz geodes |
1.5 |
14 |
Limestone, shaly, splittery, with quartz geodes |
1 |
13 |
Limestone, massive, with one think band of flint and
fossils: Dictyoclostus, large Derbya, Chonetes, large Myalina,
crinoid joints, Bryozoa |
1.5 |
12 |
Flint |
1.5 |
11 |
Shale, with Composita, Dictyclastus, Pinna, Myalina |
0.5 |
10 |
Mudstone, massive, with small quartz geodes, and scattered
Composita and a few small Myalina |
4 |
9 |
Shale, calcareous |
0.2 |
8 |
Mudstone, with small pebbles and Aviculopecten |
0.5 |
7 |
Shale |
0.3 |
6 |
Mudstone |
0.8 |
5 |
Shale |
0.3 |
4 |
Mudstone, somewhat cavernous, flaggy, few small
Aviculopecten near the base |
1.5 |
3 |
Shale, gray, splittery |
1.5 |
2 |
Shale, blue-gray |
1.5 |
1 |
Shale, calcareous, flaggy |
1 |
|