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Contributed by Yale Peabody Museum of Natural History.
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Transcription
7/21/87
Cool, Cloudy, Windy
Loc. 675
low 80s
Fort Union Fm
Tullock Mbr
Bobcat Butte
See 28, T 133 N, R. 105 W, Slope
Co., W.D.
- Base of TFu - lignite 50 cm K pollen
1.4 m no Ir
Base of Tullock here lies
at base of a lignite
50 cm thick
But this lign. & the sh
above it gives K pollen
& no Ir
K/Paleo bdy above the
analyzed interval.
Base of Fort Union lies in
the latest K.
lignitic deposition began
before end of K.
This was evident in
Hell Cr. area as well,