Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
6/21/98
Small rock quarry on US b1 about
[illegible] miles north of Magnaketa, Iowa,
[illegible] 1 Photo late afternoon in East
wallg Quarry. Dolostone
Silurian
well-bedded dolo
sharp contact
conglomerotic (4" dolc cobble
massive
chest lenses
1 1/4'
1"
1 1/4'
cave
20'
poorly bedded in
1'1/2 - 2' beds
floor X