Field Notebook: WY, SD 1956
Page 63
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Whitewood Road cut in Lakota Ostracods shale details. 25 +/- Sandstone interbedded with shaly siltst + silty sh. + selty clsh (interval A of diag corr. for Teuit) 4.6 Shzlc, sltly silty, gray weth to lile gray off white in upper 2.6, lower 2 brownish to red, with bzscl 1.0 2 red, shaly, qyps cl. Some ostracods about 2.0 from bzsc. Bzse is gyp layer filling cracks in red clay. Whole unit you-calc. 4.0+ Shzlc + elshn calcareous, olive gray, ostracod, with zones massive marlstone Chieflly massive " " some shaziness loc., thin beds olive is at bzsc. Ostrzeods rare. 55 Road wash LAKOTA SILTS concreted silt + clay gyp clst+ ver cryst SEM OSTRACODAL SHALE 3+ 1/2 LB S5 + clm + sh. fractured silts (mass wasting?) ss 30