Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
sec L-7-1
5/6pc
38' Conc layer
40- Very siLTY
10yr 5/2 bedded sh.
9yr cft (white on surface)
41- Conc Layer.
42,1 5y 5/1 siTTY
slightly bentonitic
clay
wh color 5Y6/1 to
56.5
45. do 42,1 except less
siTTY
48. less bentonitic
than at 42,1 otherwise
do 42,1
50- final 5" ledge of
concs.
50.4.5 5yH/1 slightly fissile
shale with occasional
limonite blebs, 5y7/6