Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
W-14
Sturgis section
Pect A
(Copper Rd cut)
23.0
Sandstone, massive cross-lam, to
irreg thin-bedded + cross bedded,
fine-med gr. Weatherous brown.
carb frags.
4.0
Interbedded, siltstone, shale
and sandstone. Upper 1.3 is
white. weathy studdy siltstone
with local thin beds sandstone
Then 0.7 - 1.0 + dk gray shale with
carb fragments. basal 2.0 + is
silty white ss grading to ss,
chiefly massive except at base
where it becomes platy and
grades into unit below.
3.0
Sandstone, thin bedded, fine gr,
locally has 1.0 massive bed
at top. Weathers gray br to OB.
Forms shelving ledges. Lower
1.0 has interbeds of gray
silty sh + siltst. carb frags
0.8
Shstone, gray, loc. shaly, soft.
17