Field Notebook: WY, SD 1955
Page 45
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Transcription
Beneath logs clzystone softer and not generally silty. Has local cozy partings. A 13.0 - ? Clzystone, dirty quartz & lizch- silty, with interbeds of fine gr light gr Fe stained (O) ss up to 0.6 thick. Sandy interbeds: zwc lenticular do not hold constant position in outcrop face. Lower half of interval exposed also shows some interlaminating of sandy, this is ivvcc a 12mm to course to thin beds. Slope wash and slump Part E At next cut downhill brsrl 7'± of unit above shows resting on a gray-white-weathering unconsolidated sand. Thickness of interval A of part D estimated at 27.0 ± on basis of carrying a liquidic zone across to part E. This isn't out more than 5' one way or the other. Base of Unit A, Pt D, measuring down 22,7 Sandsand, mid-grained, unconsolidated, with interbeds green-gray clzystone 21