Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Fossils: - To date bone fragments from
colored beds not diagnostic. Corbiculaz
and lezves local at coal bed horizon
according to Pettyjohn.
One channel above the coal with 4-4 bed
Corbiculaz - about 4' above coal - looks
like Corbiculaz in coal horizon + just above
it. No woody material in this channel.
(SW¼ SE¼ Sec 36 9N 12E) -
(White River beds - on weathered zone on)
colored beds.
CREIGHTON AREA trip with Pettyjohn.
Step 1. Succession in gulley includes banded bed
fecies at base, including some marine
fossils (Sample 1) in concretions grading
upward into colored shules with I.b.
grzywaches carrying Helymenites.
This evidence solves problem of
position of the colored beds of Stoueville
area - they are a fecies of the
sandstones above the coal and
are definitely Fox Hills,
Suggested to Pettyjohn that I favor
division of upper and lower Fox
Hills with coal sequence to be
included at top of basal unit. The
upper F.H. would have 2 fecies,
the Sandstone and the colored shule
which could best be distinguished
informally for mapping +
discussion. In areas where
C 0490*
* [see doc.734]
?
not necessarily
SS would not 2 foot
much weathering
37