Field Notebook: WY, SD 1955
Page 61
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Transcription
thick. Part B From top unit C Part A measuring up in gully about 50' to N of Part A. D 5.3 Siltstone, shelly, minor silty shale. Some thin beds fine-gr ss in basal 2 ft, and upper 1.5. C 7.3 Siltstone as below with thin interbeds (unclear) fine-gr. sandstone which caroonally Fe impreg + weathers OR. Unit weathers yellow grey. B 11.0 Siltstone, shelly grey in lower 9' becoming massive in upper 2, weathers yellow grey some yellow-orange stain. A 2.0+ Fe impreg sandstone ledge. Part C Offset 75'+ to N, starking base SS ledge correlating with 210 ledge for Part B. 30