Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Cold down here -- 34° -86° at surface
1
4.8 Sandstone, massive
1.0 IB, shelly platy siltstone.
4.5 Sandstone, massive to rel,
even bedded, shelly platy 14'
from top.
3.8 Siltstn, dk grey varill
grading to light gray loc
varill, up.
0.4 Ss
0.2 Bentonite
13.0 Trusiton zone, interbedded,
siltstone and thin ss
dk shale with bentonites
3.5 -- from base
5.6 - " "
3.0 -- from top
6.0 Dk gray hard silty shales.
1.7 Sandstone, hard lincense/
- Dk. gray shale - lower 4' with
Siltstn. beds.
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