Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
3 5,9 Intcrbeds (10) ?
yell grey, f.f., SA
Tuff. SS.
from ~2-8" thick in med
grey porcellaneous
[illegible] clayst (417.
volc ash?)
Resistance = 7
4, 10.5 Sh as Silty sh as in unit #1
w/ bed of tawnish
grey, resistant
(tuffaceous) porcellain
at 9m that
Thickens from 10cm
to 40 cm to W.
5. 11 SS, vfg, SA, (Tuffaceous)
down cut 1/2 m
into underlying
shale interval
trough x- bedded
at base, becoming