Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Colorado Springs area, Section on Rt 338, Bear Cr.
road cut in vertical strata
#1
Dakote -
0 Top does not include transition zone
Slope wash.
40.6 Massive, fine- to medium grained ss, cross-
lamimated. Buff weathered. Rippled bedding
places locally - bedding 1 to 4" average.
N.
3.6 Clay, silty, and argillaceous siltstone,
Upper 1.0 silty quartzclay with pezzize Fe blobs
remainder dk-grzzy silty clstn+argill stlstn
with 1 or 2 beds lit gr Siltstn, v fine ss
about 0.2 thick
4.2 Interbedded light gray, hard, fine ss, beds .4
to 1.0+, and dark silty to sandy sh and
dk argill. siltstone.
35.5 Sandstone, massive & x lam. channels of
fine to med cpu., fine predom. a few
slightly zone btw channels, Weathers Fe brwn.
locally coarser at base.
0.8 Clay, plastic, silty, weather brown,
5.8 Dk gray to black, plastic with
silty clay and beds + laminic siltston
Most silty in upper 2.0, where
silt predominates. Lower 3.6 scattered
1/2" beds +lzmize silt, 1/4"beconite
at base.
8.5 Dk gray to black plastic clay, with