Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Station #4
A MEASURED SECTION
B FOSSIL HORIZONS
C LITHOLOGY
D CONTACT
A Pierre Shale measured from
barren cone, layer 40 ft below
first inscramus conc zone.
1 Barren Cone, layer 6" - 2'
thick, hard fine grained cone.
2 40 9/10 ft of
3 First inscrammus conc.
16 ft to 2nd inscrammus
14ft 3/10 3ft - 5th ins
3ft - 4th ins
3ft - 3rd ins
13ft <- 2nd ins