Field Notebook: SD, WY, ND 1957
Page 51
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Transcription
(3) 11.5 As in unit below but becoming siltier with minor vfg sand upward At top is zone OB, worth, silty ferruginous ls. concs. with scattered fossils. Consist of 1. Corus chiefly large protoczdia with some others incl- mmmonites (small spheno + scaphs) Sect. 1, Sample 1. 3.0 from top this unit (rbconcs) conc with fossils-Loc I-B. Another worth out about 6' below but presNG. (4) 6.5 Silty locally