Field Notebook: SD, ND 1959
Page 27
Image from the Biodiversity Heritage Library. Contributed by Yale Peabody Museum of Natural History. | www.biodiversitylibrary.org
Transcription
Pt. 63, Loc. 30 reconnaissance. West along section gulley traced large brn: weather between cone layer (A) where it's crop swings NW back toward road it is 65 feet + down to upper red brown layer in gulley (B) About 46' up from latter (B) scattered small, up to 1', ls cones weather brn + OB-PB some silt jackets, no fossils seen. About 20 or few more feet from lower cones (B) is the silty OB stained zone. From (B) cone layer down to (C) layer- is 23.5. (C) layer brittle dk blue-grey limestone cones weathering into reddish brown to grey white. Between (B) and (C) layers is the jerositic silt zone with scattered silt-jacketed cones and cone-in-cone cones. From (C) layer down is brownish-grey weathering zone for 14 or 15 feet, then rather abrupt change to light bluish grey. Small cones, whitish rind some with zeomanite frogs in float in brown-stained zone. Also 2 cone which may be from (C) layer or in brown-stained zone below, or within upper 8 feet of blue- grey zone. Has Limopsis concentricus. 12.