Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
base. Whole basal gray zone may be
Bentonite f[illegible] x lam.
SS, massive to platy at base with
shelly zones in lower foot.
5,1
SS, fine to medium in beds up to 2,0
but mostly thinner with some I,b.
black shale + p[illegible], locally crossbedded.
1,3
Fine SS + argill, siltstone, irreg. bedded.
2,0
Conch. fract. gray silty claystone,
4,2
Fine graded argill, SS and interbedds
of silty shale,
3/