Field Notebook: CO 1952b
Page 71
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Transcription
2nd shale subunit H, 1.8 Fine ss and siltstone thin beds (up to 3 or 4") worths often to Fe black, sandy beds predominate. Fish scales common, tine plant frags. Some zones with fine shale pellets, fish bones & scales. Inoceramus in float below this ledge and J below, no doubt comes from this ledge. I 7.5 Shale, with interbeds siltstone Dk gray to black. 3rd ass J 22.0t Siltstone + fine grzimed ss, massive light gray to white, vertical (Fe-stained) firctures. Soft underlies slope in most places K 4.5t Slope in shaly litegray siltstone, dk gray silty beds when fresh, lower 1 ft locally ledgy. L, 4.02 Shaly zone, obscured by slope wash m 0.7 Fine gr. gray ss, crub motthing, uvrcy bedded. Yellow powdery cavity fillings + stzin. (Sample) N, 10.10 Shaley zone with interbedded siltstone, mostly obscured by wash. O 29.0 Sandstone, even-bedded x-1/om, fine gr. bru weath. P 11.0 Slope wash over small beach. with ledges thin bedded ss protruding. Q. 7.0 Sandstone, even bed x (1m to cross bedded), fine to medium, with clay blob zones R 6.45 Sandstone with zones soft argillaceous ss (oc pellets) mostly under slope, ss as in Q above. s 10.65 Shaly zone covered with slope wash, but local, patches bl. sh. exposed-silty. 32