Field Notebook: WY 1955a
Page 143
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
complete Fall River section In ditch cut on up road is Fall River - Skull Cr. contact. About 1/2" bentonite in Skull Creek +/-9.8 above it. S.C. is remnant in little syncline, includes some banded-greening cones, locally. Top of Fall River is chiefly sandy shale + platy ss + silt which locally is Fd imprccy. No good section of this and local structure makes piecing or crosscrop measurement N.G. Part E - Road cut NE... of buttu is Bzsl ss. (18') of Part 3. Conglom, sandstone in contact with Morrison. Here it is 32' thick with bzsl 3'+ a conglom, chiefly of black chert pebbles. Under it is 1-4 to brown claystone which grades abruptly down to typical gray green. About 27' Morrison in cut, partially obscured. 71 r8