Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
contorted bedding and locally lime-
indurated concretation-like bodies
of cross-bedded and/or contorted SS.
Above this the unit contains
elongate but lenticular thin beds of
lignitic, locally shaly sand, some
ste dipping or arcuate. Also small
OB weather cones scattered
throughout and in stringers.
From about 22.0 to 30.0 above
base are the large, conc.-like
concentrations of X bedded SS
which weather into huge
spheroidal masses 8' in diam.
Above these, SS as below with
more lignitic lamine in local
beds and locally, abundant small
Fe cones
The SS in this interval is colgate-like,
a fairly "dirty" subgraywacke,, may
even have some glauconite locally-
at least it has some light-green
quartz.
At top SS is loc. indurated - not by
CaCO3.
Contact is sharp, loc. irreg.