Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
See A-10-3
In A ridge 520 ft.
EAST of A-13-2
Lower mbr. here LACKS
ITS orange unit which
is a channel x here
is NOT present.
0' Fort Union upper contact
lower grey unit, -G; V
contact obscured
prob channelling.
7.5 A pseudo SL layer
of silicified siltst.
7.7 Maroon unit becoming
more carbonaceous
toward top.
11' Maroon is a black
chippy sh very lignito
11.4 Lignite
12 - Upper mbr.