Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
UNIT Thickness Descr
1 Lance Fm / K.
uppermost ledges
20-30 m thick.
at f.g. sa. ss.
yellow tan w/ thin
er (9)
2 0.7 friable silty yellow
tan ss
top of ler. (1)
Fort Union Fm / Paleozoic
3 0.45 fissile siltst
yellow tan w/ carbonaceous layer at top.
[illegible] thick
er (2)
5cm
4 2.2 unit stats as siltst
at base grades upward
to mudst x tanwash
grey sh w carb bands at top.
becoming silty in uppermost 10 cm
then:
5 1.35 vfg. sa ss, yellow tan