Field Notebook: Texas 1957b
Page 53
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Transcription
6 8) Calcarudite, 80', light gray to light tan weathering; very fine chert pebbles, medium to large limestone pebbles. Massive, 8' to 10' beds. 8/26/57/5 center 10' covered. 7 9) Limestone, gray (dark); sandy; 2', very fine sand to fine sand size; fusulines look like Hess or Leonard types; <-- (?) 8/26/57/6. 8 10) Sandstone, grayish-brown, well sorted fine to very fine sand size; 6" to 3' beds. 16'. 9 11) Calcarenite, 1'; dark gray, 8/26/57/7. 10 12) Covered, 23' most shaly sandstone similar to #10. 11 13) Conglomerate; very fine chert pebbles, matrix limestone with crinoid fragments. 2'. PG. 74 12 14) Calcarudite, gray to dark gray limestone pebbles; some as large as 8" to 10" diameter; little chert material except as sand-size particles 20'. 13 15) Conglomerate, brown weathering, locally the chert and quartzite dominates over limestone pebbles. The change from 12 to 13 is rather abrupt here even for conglomeratic lense. Massive; 28' in 4' to 6' beds. 14 16) Like #12; here again % chert;limestone is quite abrupt. 19'. 15 17) Like #13, but in 2' to 3' beds, more sandstone lenses (50% of unit). 18', upper is a gray quartz sandstone with about 10% chert pebbles. 8/26/57/8. 16 18) Conglomerate; very fine chert pebbles, matrix limestone with crinoid fragments. 2'. PG. 75 {note: illustration: bed 17: 8/26/57/8. bed 19: 8/26/57/9} 17 19) Dolostone, brownish-gray, 6" to 1' beds, sandy to silty throughout. Once had a rich fauna but have been replaced by dolomite. 40', some chert pebbles 1/4" to 1/2" diameter. 18 20) Limestone, some what altered, dark gray to light gray. 2' beds. 8/26/57/9. PG. 76 8/26/57/10 - near top of King Massive limestone unit at east end of Hess Horst. This bed is equivalent stratigraphically to bed 7 of section 39b. In the middle of this Horst there is a grauben dropped (11NE-SW) and Sect.39b was measured up the section in the grauben, King measured his section east of the grauben and apparently based the Wolfcamp fm. to the west on the lithology change on this part of the Glass Mt. PG. 77 8/27/57 Hess Canyon