Field Notebook: CO 1951a
Page 79
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Transcription
Deer Creek section - Upper Part A (N 20° W, 55° E) Measured with stick, not direct bed to bed but close. All down to clay bed are questionable because of local faulting. 15.0 Fine grained sandstone, irreg bedded, X hum, to upper Fe brown stain, lichens + 6 to 7 feet - as above 5-6' - More platy, siltsta to shaley siltsta + ss interbedds,, w/eth lite gray. Some interbeds sandy shale. 3' Platy fine grained ss, interbedded with siltsta; 41.7 Massive x lzm bru weath fine qr, ss. discnt - 4.0 (Probably more as swell vert fault in intaruzl) Argillaceous siltstone w/inter fine ss dh gray irreg, lzm, increasingly silty to base 1.0± Shaley gray siltsta + silty shale. 3.0 Fine grained lite gray ss. worm tubes in upper part (1') lower 2', becomes [illegible] thin bedded to lzm[illegible]ed, silty lower in lower'. 1.0±? Prob. was shale here but washed out 10.5 Sandstone fine qr x lzm bru weath hard for about upper 3'. Then saddle with wash & platy, sandy siltstone, fine ss thin beds silty shale. 2.5 to 10' Sandstone fine gr@med x lzm fr v bedl w/eths fe brown to buff, lichens. A channel ss thickens abruptly along strike. 37