Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
SECTION 7-19-1
SW 1/4 SW 1/4 SEC 24 T 14 N R 9 W
E. STARK CO.
0
Fort Union
Silty Grey LIMONITE
STAINED CLAY s/shale
Gypsum xls.
5'-very poor plant frags
6' DARK grey SHALE
GYR
10
LIMONITE STAINED vfg
LAMINATED grey SS.
LAMINATION'S HAVE CARB
on them. Poorly cemented
Some mica flakes on
bedding planes
Interbedded with a
small amt. of silty grey
C/4x
12 Becomes a grey siltstone
with 3% mica
13' begins to turn to a
dark purple, or brown
15'-15.7 lignite