Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
August 1, in my section of a
Freeze Out Mt. measured with aneroid
by T.C. Hopkins.
Dip about 15°
Dakota ss.
about 70 feet
Bore not sure so that the green shales may
be a little thicker than here gives.
Green shales with 2 layers of limestone
Fresh water channels in middle
Each about one foot thick,
Then bedded sandstone 260 {
85 feet.
15 "
Massive white ss. 100 "
Sandy grey to buff shales 20 "
Red & grey shales & ss, ripple marked 30 }
Grey shales, Belemnites. 40 .
Massive White ss 110 "
Grey thin bedded ss. 30 "
Red & Grey variegated beds shale
and ss.
70 ,
Triassic limestone with fossils. 8 :
Rem of amphitheater.
The dry section for previous page