Field Notebook: Arizona, Texas. 1923, 1924
Page 58
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Transcription
of the olives, come in small life oats This night about 4000 feet above the sea. and junipers. The thorny acacias are still here, but nowhere trace of one young are tipped but cactus Schuaro or Carnegies to be seen. Over the perpendicular granite comes in a thrustful confitted red and white sand, made up mainly of quartz sand and quartz pebbles up to one inch in diameter. Mica vein- is present and there may be some feldspar. If or it is an alluvose chiefly washed up by the sea, since part of the material is angular (see the specimen). Then a coarse quartzite (see sample), followed by finer gained quartzites of pink earth. It is all distinctly bedded, marked by narrow gnos of freection, cross bedding, and is often laminated by owing dark borders. Here and there are joints of smooth well rounded pebble conglomerate. We can think something like 700