Field Notebook: Texas 1957a
Page 136
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Transcription
1/26 33) Siltstone, very limy, & brown to brown/grey weathering. 6" 34) Sandstone & siltstone, sandstone of grain grades into a 1' to 1½' lime rich resistant beds. [8'] 35) Sandstone, silty sand, & brown weathering up to 1" bedding - 23' 36) Covered, 5' 37) same as *35 - 8' 38) LS, gray weathering 8", have little cephalopod on it. 7/20/57/6 39) Sandstone, ungrained, & brown weathering 8' 40) LS. Massive, gray weathering, bioturbed. Upper Neez Ledge 1/27 7/20/57/6 7/20/57/7 Collector 7/20/57/7 - a pretty flat, found at about bed 34 - it's a grayls or is either from about *38 or, most likely from *40. Upper through bed 24 of this section the sequence of lithology is rather cyclic. Even the Neez(?) in its upper part shows cyclic deposition, but with the change of either source of sediment or depositional environment. I frankly don't know exactly when to draw formation boundaries (the topy bed #1 on the top of the Wojcany Congs, the bed #2 limestoneed below is equal to the lower Neez ledge. King calls the lower ls Ledge Neez, and the upper Ledge, the 1st Gerard ls mbr. Section 18 thus includes Wojcany (part), Neez, and Cover Record rocks.