Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
7-18-3
58
DARK grey dark grey
weathering fissile shale
with layers (occ of pyritifc
minky & gypsum
63.5
tan
A tanuish grey sub angular
micaceous (30%) vfg ss
and siltstone with
plant frags w lignified
wood. (gypsum present)
limonite stained in
places.
66
X4' Vfg ss cyp & limonite
- DARK grey
''
''
68
- SILSTONE DARK grey
from 68 upward becomes
progressively purplish
inc. amount of organic
material
Lignite.
71.9
614
BYEN Fc min at top of lag
with crust of GXP
72.7
703
Grey clay somewhat fissile