Field Notebook: Texas 1924, 1925
Page 83
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Transcription
Alpine, April 9, 1926. Friday went to Leonard Int. to see the hills, tilted and more or less crumpled "Tesnus" (simple?) formation under two beds of the Permian. The beds here in the basal Permian, is about 300 foot thick and to the S W. varies in a few miles. From Leonard Int N.E. the thin increases to about 2000 foot and has beneath it the half camps of the Permian, and the Upper Baptist not to say anything of the Lower Baptist which may be = the Tesnus-Simple beds. The "Tesnus" at my Leonard Int is crumpled, mere or less fine conglomerate and appears to have no fms. Apparently higher come in impure limestones (maybe 20% o crys.), but are also mere a len fine conglomeratic, and these limestones are in large part made of a debris of fossil fragments. Only of these fragments are tiny pieces of small crinoids, and very rare bits of small brachiopods that maybe products of the cana fauna, and Rhynchonella like Lepidoda, crinids. Large specules are very common in certain layers, in supposedly to lime limestones believed to be of the simple formation. My rare does one see a crinoid fossil 1/2 inch in diameter. This "Simple Ci" appears to me to be of a shallow sea bottom that