Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
Elmwilliam August 16 1913
The quarry in the Whirlpool
sandstone occur about five miles to the
northwest of Georgetown.
The Whirlpool sandstone is here about
12 feet thick. The lower 2 to 4 inches
are red and mixed layer iron pyrite
and from irregularities fitting into the
Queenston shale. About 9 feet of the
sandstone is regularly bedded and is the
much softer after stone. As a rule the
clay in grey but in places it becomes
hotched with red or passes more en-
tirely into a light red clay. The
top 3 feet are much cross bedded
and is thrown away.
Over the sandstone follow the
Cataract limestone that here are
more sandy and shaly than at
Cataract!