Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
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Transcription
loc 12
Skeleton section - Loc. A of ridge N. Whitehorse.
Base in Prowe - Elk Butte
Zone smell OB to O wezth. sld. concs.
1 20.+ Shale, gray, finely silty, yourzlc.,
which grades to blocky, slily shale, loc.
shely to blocky silt in upper
4 or 5 feet. Scattered smell (up to 0.8)
between ls cones gray cores 2 to 4
ft from top.
2 12.5 Siltst, clayey, loc. shily, with 0.5 to 1-0+
zone at base mottled yellow-jarosite.
Gray, weathers light gray, studded with
spherical yellow jarositic spots. Some
large broken cones in basal 1 or 2
feet - silty te jackets with evident
bedding loc. penetrating to ls. core.
3 1.0-2.0 Zone red-brown wezth czle. concs. This is
peanut brittle zone but loc. all cones
barren.
4. 11.5 Siltst clayey gray as in 2 above but
few yellow spots. Largely covered
no cones seen in place.
51