Field Notebook: SD, WY 1961
Page 18
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Generalized Relative SECTION. ST. PATRICK'S BUTTE RTE. 69 & MOREAS 65 & MOREAN Hell Creek Colgate mbr. Bullhead mbr. Timber Lake mbr. Trail CITY mbr. Sh. EIK Butte mbc. Pierre mobridge mbr. whitish med to iron stainess interfingering with Bullhead Grey banded (VERY thin bands) shales & SILTY Sh. carbonaceous shs. pres. BENTONITE near base (ventilation.) Trans. Marine to Cont. med. yellow sand beach. barren bluek cone. & fssI. (seaphites. deb.) Similar To E.B here Grey SILTY Sh. slightly lighter than E.B. wh. to lighter grey. Cone. ?red Barren (mostly/sid.) much more silvery at this spot & ~ increasingly so to the westward. jarosite & barren cone. becomes richly fossiferous to the cast. More barren to the west. jarosite midway Grey SILTY Sh. | wh- dark grey| cone. Barren & sideritic) Diff To Tell Contact with. Trail City mbr. Very fissile Sh. in pars much more silvery at this point. Mostly tar