Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
#16
Vertical section.
This is a decidedly banded
shales. The shale settled
around a fragment of limestone
containing pyrite? (black).
Note the foreshortening or
constriction around the corner.
The water must have been very
calm when this material was
laid down.
28.5 gal. oil per ton.