Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
A-18-1
4 some small 1/2" cones.
wh color 10YR 8/2
8'
11.6 UNIT becomes
a very fine bedded
SILT WITH MICA
FLAKES N, 8.
11.7 2" 10YR 8/6 wh.
Color. Dense chert
LAMINATED H-S layer
of SEPTE & JENKINS
UNIT IS LATERALLY
discontinuous
fading out 20' to
north. thickness
inc to about 6"
south however
it thicken &
thins and in
places is NOT