Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
North Dakota
Stolles Long Lake - Linton Section on
V.S. 83 + vicinity, (Not measured - see
Stolles estimated general section.)
Linton.
Stream cut in Municipal Park exposes
Pierre section.
50' ± of Elk Butte? Grey clay
shale with 1 or 2 'yellow streaks'
+ possibly one or 2 bentonites,
no concretions. Barren
10' ± Ruff locally shale, sand
teds, + shale partings.
Basal 2' = 'yellow zone'
at Elk Butte - transition
contact, 1½' above
comes barren cone, zone
of hard 'cold' ellipsoidal
cones. 4 to 6 ft above
cone zone of locally