Field Notebook: CO 1952b
Page 99
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Transcription
B.O.V. 32-8 (13) cont. S. Platte Canyon - Section I. Verdos Ranch, S end Hogback N. of S. Platte. Section starts in Granceros transition about 5 ft from top... A 15.3 Platy fine ss, minor bedded with siltstone; sandy beds Fe stained, lodges' platy ss at 5.0 (0.5 to 2.0 thick) and 10.0 (.96 thick.) B 5.0 Sandstone, massive, fine grained, soft, weathered, pocketly fractured light gray with Fe brown irreg. patches C 3.0 Shale, silty, brown in upper few inches, grading to siltstone; gray, light gray wash. D 3.7 Sandstone, massive, fine gr, brn wash. E 4.2 Shale, Pt gray, & break down 1.1 Silty, fine plant frags 1.3 Plastic gray, minor silty .8 silty, brown-gray, grading to siltstone. 1.0 Argill. siltstone. F 2.9 Sandstone, fine gr, evenbed x low to locally massive x lzm, brn wash G 1.3 Siltstone, friable with thin beds fine ss. H 1.5 Sandstone as in F above I .6 Siltstone, soft few thin sandy beds J .7 Sandstone as in F above K 1.2 Siltstone, soft L Note (lateral variation F to K with ss locally pinching out siltst partings, 46