Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Sands w/ granulitic
frags & much
Chert.
X bedded w/
congl lenses.
Red suggests MATRIX
(C/ix) derived from
secondary alteration
of grains, to C/ix
BIMODAL dist of
grains.
wind driven
Red Beds Picture
How FAR could limestone
pebbles & sand be
transported.
[illegible] 7-200 m. ILLINOIS