Field Notebook: Texas 1957a
Page 240
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Transcription
1) Limestone, brown-yellow weathering, organic fragmental - Brachs, bryozoans, crinoids, mollusca, fusulines. Collection 7/17/57/1, 5.5'. 2) Covered 21'. 3) Sandstone, 70% or more Quartz, CaCO3 cement. Brown-orange weathering, medium (1/8" to 1/4") lamellae, even - not irregular; in beds 3" to 1', some beds are composed of many small shell fragments - I interpret this to be a littoral deposit, has whole shells of punctuate brachs. 7/17/57/2. [12']. PG. 108 4) Covered, (unknown), 2 or 3-6" bands of brown-orange weathering sandstones. Collection 7/17/57/3 from cut hills. 34'. 5) Limestone dark gray weathering, organic fragmental crinoids and Brachs mainly. 7/17/57/4 at 38'. 3" to 2' beds 61'. (Transfer bed?) 6) Covered, 66'. 7) Limestone, dark gray, with large amounts of orange-brown quartz sandstone in between irregular limestone masses. 8', 7/17/57/5. 8) Covered, 13'. 9) Calcarenite and ss., light gray weathering, dark gray on fresh surface 3.5', 2" to 6" beds - 7/17/57/6. 10) Covered 10'. 11) Limestone, weathers orange-brown fresh, brown-dark gray. Shell hash, fusulines, crinoids and brachs. 6" to 1' beds. [4'] 7/17/57/7. 12) Covered, 13'. PG. 109 {note: illustration: bed 9: 7/17/57/6 bed 11: 7/17/57/7 bed 15: 7/17/57/8 bed 16: 7/17/57/12 bed 1: 7/17/57/1 bed 3: 7/17/57/2 bed 4: 7/17/57/3 bed 5: 7/17/57/4 bed 7: 7/17/57/5} 13) Sandstone - orange-brown weathering, fine sand size, laminated - see color picture. 6"-8". 14) Covered, 22'. 15) Limestone, medium gray weathering, fine grain Calcarenite, many silicified brachiopods. Collection 7/1/57/8 about 4' above base - crinoids common. 6'. 16) Covered, but probably like #15 - 38' to the east becomes a gray-green shale but looks to be more than the measured 38'. 7/17/57/12. PG. 110