Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Twelvemile Pkrf (cont)
section down from top Debate starting
at mouth small canyon in haybach
just south of Cowan ranch. Locality 3X.
Wash with thin bluish to folor avg[illegible] siltstone
about 2.0 above first unit below.
1.5 Sandstone, fine-gr., silty,
with interbedded shaly silt
+ shely ss, weathers light gray,
some Fe brown stain.
3.0 Shale, silty to sandy, gray,
weathers light gray in upper
half, yellowish in lower
A { 1.7 Sandstone, fine-gr. massive, hazel,
weathers light gray with folor
splotchy stain.
{ 0.21 Porcellanitic shale.
{ 3.8 Sandstone, fine grzncal, platy
with interbeds shaly silts.
+ SS.
Three units comprising A are
in lens cross-cutting unit
below - see zbcvu
37