Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Martinsburg
sh x ls.
ls is graded
with fossils
sh - no fossil
Bottom makes on ls.
making it.
a clay beds
gelling upward into
the sh.
[illegible] red beds
Martinsburg transition
Mou sh.
less clay and
this is muddy.