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The AAPG/Datapages Combined Publications Database
Houston Geological Society Bulletin
Abstract
Abstract: Petrologic Study of Sediments from Selected Central Texas Caves
By
University of Texas, Master of Arts thesis, 117 p., 1965
The petrologic study of cave sediments is a new field whose history dates
back only about 30 years. Most previous work has been done in Europe, with
very little in North America. This is the first petrologic study of sediments of
Texas caves.
Sediments from the 11 Central Texas caves investigated provide information
on the diagenetic sequence of authigenic calcite and collophane, and add to the
knowledge of the occurrence and distribution of red clays and dolomite silts.
The sediments from Fyllan Cave in Travis County place a maximum date of mid-Pleistocene on the existing Colorado River terraces. X-ray analysis of clays in
sediments from three caves indicates a decline in kaolinite content, confirming
a drying tendency for the last 8000 years. End_Pages 16 and 17--------