Field Notebook: WY, SD 1956
Page 49
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Transcription
5) 26.0+ Claystone, gray, finely silty, weak, very uniform, some minor local Fe stain red end, at top, powdery yellow, non-calc. throughout. 4) 47.0+ Limestone, tan to light gray, very fine gr, with upper 10+ feet chiefly a highly calc. earthy shell silt which weather light yellow brown and contains, at base lenses of underlying gray ls.. Weathers to crumbly ledge, approx upper ½ is silty. Some hard ls concs-cgg-shape. 3) 1.0 Shell, calcareous, becoming silty in low 0.5. Greenish gray, ostracode) (Sample 1) 2) 1.5 Claystone, calcareous, greenish gray grades to shell above, ostracode) at top - locally could be classed) 25' x marl with wrigg bodies clayey ls. and some hard-cgg-shaped ls. concs. 1) 0.5-? Shell, calcareous, greenish gray, silty. Wash covered slope to creek bottom. 7787 23