Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
July 15 Butte
SE 1/4 SE 1/4 Sec 8 T140N R90W W 1/2 MORTON CO.
Sec, D-N-2
H I
Baked red shale &
silt stone layer
with black shabbly
Scoria stringers
fossil plant frags in
layer Equisturn -
Layer with distinctive
Himalite red coloration.
coved
6.3 7.3 8.2 covered
9.5 grey chippy shale.
gypsum
12.5 Grey chippy silty clay
gvp
14.7- Clay (grey) with
much carbonaceous matter on partings. Some plant
frags Becomes much thicker s
15.4 A grey silty clay (low silt)
weathering orange cuffed due to limonite.
21. More silt otherwise ditto
Whole unit weathers orange
a grey mottled with polygonal
cracking.