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Contributed by Yale Peabody Museum of Natural History.
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Transcription
Skyline hogback - notes
Recheck of section for bentonites
shows that one at base of main
clay - Taylor/Wazza Section 1951 is
not well enough defined to be counted.
May only be stained plastic clay.
However on s on hogback, Vic. Clay
mines the exposed clay bed does
have a bentonitic layer 3.5 above
base. This clay was measured and
sampled in summer 1949 with
Colton Belden, etc crew from field
course. This trace of the
middle beat zone seen at
several places where Taylor/Wazza
section taken.
Disconformity:- There is definitely,
one over the x-bedded fine to cgl,
brown ss with lenses gray
sands that overlies more typical
Lytte-type coarse to cgl white ss.
Contact between this brown-ss unit
and typical Lytle is not sharp
here, as it is along Grape Creek,
but change takes place in
mixed zone indicating some
reworking of underlying lightgrey
Lytle-like ss. Locally fairly sharp
contact featuring some concret,
cgl in base brown lens. The