Field Notebook: WY, SD 1956
Page 131
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Transcription
may be spherulitic at top half. Grades to unit above (3) 1.5 Claystone, sandy and clayey fine-grained sandstone, intermixed. Bessl part includes fragmental clstn with Fe impreg silty & sandy matrix, grades up to clom. fine-gr clayey ss, whole weathers brownish with bessl 0.c loc. Fe impreg + red. (4) 4.3 Sandstone, fine-grained, clayey, massive, and interbedsed hard sandy sttn. chiefly grey-white local Fe brn + pink stain, soft friable (5) 1.2 loc. clayey Sandstone, very fine grained, massive, some lenses frag. clayey siltstn. Top Fe impreg, rusty brn. + is loc. spherulitic. (6) 1.7 Siltstone grey, weathers grey-white, loc. shaly, some spherulites