Late Cretaceous to Quaternary Strata and Fossils of Texas: Field Excursions Celebrating 125 Years of GSA and Texas Geology, GSA South-Central Section Meeting, Austin, Texas, April 2013
This volume, prepared in conjunction with the 47th Annual Meeting of the GSA South-Central Section, contains four guides that focus on sedimentology and paleontology in Texas. A theme of exploration threads its way through the trips, all of which can trace their roots to the work of early geologic explorers. One trip retraces part of the 1889 Dumble survey that explored the geology along the Colorado River between Austin and La Grange, Texas, while another takes readers to an internationally famous Quaternary vertebrate paleontology site, studied since the beginning of the twentieth century, inside Friesenhahn Cave in the central Texas Hill Country. Another guide visits Paleocene- to Eocene-age sediments derived from the Rocky Mountains and transported via rivers to the Houston Embayment, building out the continental shelf, while a fourth explores Late Cretaceous Gulf Series strata in the Dallas area.
The search for Devil’s Eye: Retracing the historic Dumble survey with modern mobile technology
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Published:January 01, 2013
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CiteCitation
Ann Molineux, Louis G. Zachos, Unmil Karadker, 2013. "The search for Devil’s Eye: Retracing the historic Dumble survey with modern mobile technology", Late Cretaceous to Quaternary Strata and Fossils of Texas: Field Excursions Celebrating 125 Years of GSA and Texas Geology, GSA South-Central Section Meeting, Austin, Texas, April 2013, Brian B. Hunt, Elizabeth J. Catlos
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ABSTRACT
This trip follows part of the route taken by E.T. Dumble, R.A.F. Penrose, Jr. (later president of and great benefactor to the Geological Society of America), and R.T. Hill as they surveyed the geology from the vantage point of the Colorado River between Austin and La Grange during the Geological Survey of the State of Texas in April of 1889. This year has particular significance because it is the same year that Penrose joined the Geological Society of America. The river has changed in flow regime, and many outcrops have weathered or been flooded. This trip passes through the primarily Claiborne (middle Eocene) geologic section between Bastrop and Smithville, Texas, and illustrates the difficulties to be faced when retracing historic geological surveys. The group will be using and testing a mobile application developed specifically for this field trip theme.
- Anthozoa
- areal geology
- Bastrop County Texas
- Calvert Bluff Formation
- Carrizo Sand
- Cenozoic
- Claiborne Group
- Cnidaria
- Colorado River
- educational resources
- Eocene
- field trips
- fluvial features
- Foraminifera
- history
- Invertebrata
- microfossils
- middle Eocene
- Mollusca
- Paleocene
- Paleogene
- Protista
- Queen City Formation
- rivers
- shells
- Sparta Sand
- stratigraphy
- surveys
- Tertiary
- Texas
- United States
- Wilcox Group