Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
5/12/95.
@ Sogn Roadcut 0.1 mile E. of intersection
of Goodhue roads g+14 on Rd. 117
Photo B+W upper part of section, E side of
South end of roadcut on County Blvd 117
Photo C.S.#3 cutto
Photo C.S.# middle part
Photo C.S.#5 showing disturbed bedding at
Top of Hidden Falls MBs.
Road cuts on both sides of road.
East side shows better overall
features but 2 ironstained horizons
are more clearly seen in W. side cut.
E. side has some large blocks that
have fallen down. See notations
on graphic sect. Fig. 20-17 Sloan(ed.) 1984
(we had lunch at this site).
Glenwood Inn is a deepwater clastic unit with pyrite+lime nodules
with a "corrosion" zone at base.
Platteville is a complex of two to probably 5 or 6 packages
separated by pyritic "corrosion" zone. I take the
corrosion zones here to be deep water oxide surfaces of
mineral deposition but not sediment deposition -
between at least two corrosion zones there are beds of