Field Notebook: CO, WY 1955b
Page 105
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Transcription
shale. Needs digging for details. At least one bentonite +/-25? above base, may be more. Popcorn over most. Thick shale section some silky zones & Fe cones. Rusty beds comprise entire Fall River equivalent at this place. No good ss you could call Graybull). Pizty thin is of Jnr frogs with tossils comes in well up in section 25'ft under white ss. (Muddy?) White sandy band is very fine grained below with cZlc. pizty thinly ltm ss ledges weath ben above these soft zone coarse ss with dk gray polished chert pebble gray cht pebbles + silic bone in rounded frogs, two- course white x Gsch two- green coarse ss. Ash? pizty cZlc. 52