Field Notebook: SD, ND 1962
Page 19
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Transcription
Section B. (See old notes - this is same as base of old St Pzfs. section F56-C, 1959-1, p.64 Podewell St Pzfs #3 has better breakdown? The red letters are his samples Base on layer of OB worth. czlc. concs locl with gray silty jackets. A few fossils - Tellina, P. linguliformis, Mactra scattered but locally accumulations of above complete Timber Lzke assemblyc. (Collection labeled "upcomost TL conc. layer." ) 1 4.0 Clzcy silt and sznd, gray, "worm-worked", with scattered small, locally fossiliferous OB wortha concs in bzszl foot. Above this scattered clusters of shell fragments in small subspherical masses, shells loose in matrix, fragmented for most part though gastropods commonly whole. (Coll. B-2) A Sczthered JVosite blebs, Grades to well-bedded unit above. Contact fairly shrp. Mk'd by top limit of shell clusters with ostreaz (see Coll B-2) 2 1.2 Bznded beds, alternating lzycus, ± D.I., of very finel silty gray clay (locally bledbed) and layers of clzcy gray silt. Layer OB worthi blebs at base and fairly persistent OB to yellow worth silt layer at top. B 3 14.0+ Bznded beds, prob. covered by popcorn crust to top of dark bznd indicating highly bentonic layer. C from top 4 7.0 Bznded beds under popcorn crust, loc. persistent rusty zone at top. 8