Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
porcelanitic?
3.5 Siltstone, light gray w[or]k[?]
white, looks tuffaceous.
9.6 Claystone, gray, silty at base
locally fragmental, hard
becoming softer at top,
Under gray popcorn surface.
6.0t Sandstone, med-coarse, soft
x-bedded, with claystone
pallots in lower part,
Light gray. Many dark
grains.
6.5 Claystone, silty at base
hard dk gray grades
up to lighter gray +
ver purple cl[as]t.
52.0t Sandstone, chiefly med-gr,
greenish tan to red, ss.
much dk minerals,
contains polished pabbles.
Grades, in upper red part
to hard claystone with
vitreous greenish stuff
in it - welded tuff? See
sample, from Loc 1
55