Field Notebook: Oklahoma 1919
Page 40
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Transcription
it true a Coliche little limestone, but later I asked if it might be a chemical deposit - a limestone as the first deposit in a super-saturated sea in a dry climate. The limestone rests on brick red clay. I was told that here the horizontal Permian has a thickness of about 100 feet. It is composed over the base of two limestone conglomerates, a sandstone, and higher up of two gravel beds that are loosely cemented and two limestones like the one described. The rest is brick red shale. Over the limestone in places lie a sandy laminate jhotogn recent bogy deposit. The limestones are said to be fairly persistent at the same level in this part of the Archelles. We then went to a place on a side road one mile west and one mile south of Broadford, to see another exposure of Drap annucha limestone. Here it is almost all one rockite about 70 feet thick. Crinoidal material is here not common, and some of the layers have the appearance of a crminuated hydra-shell origina. The large fossils here are small and Hustedia and a small