Mansfield Dam Quadrangle, Texas. Digital Download

OFM0229D. Geologic Map of the Mansfield Dam Quadrangle, Texas, by C. M. Woodruff, Jr. Oversized geologic map on color topographic base, map scale 1:24,000, 2017. Downloadable PDF. For paper map: OFM0229.


About This Publication
The mapping of this quadrangle is based on analyses of aerial photographs and extensive fieldwork. The topographic base was created from digital files of the Texas Natural Resources Information Services (TNRIS) for the U.S. Geological Survey, Mansfield Dam, Texas, 7.5-minute topographic quadrangle map. Digital files of roads, county boundaries, drainage, and lake shores were also obtained from TNRIS.

Part of the map is derived (and locally modified) from Woodruff (1973). Regional mapping by Barnes (1974) provided locally helpful stratigraphic information, and the extensive work by Moore (1959, 1961, 1964) provided helpful insights pertaining to the Walnut and Comanche Peak Formations. This map presents lithostratigraphic units. However, different workers have interpreted the presence of sequence stratigraphic boundaries.

Work for this map was funded in part by the U.S. Geological Survey National Cooperative Geologic Mapping Program under STATEMAP award number G16AC00194, 2016, and by the Bureau of Economic Geology STARR program. The study also benefited from work in nearby areas funded in part by the U.S. Geological Survey National Cooperative Geologic Mapping Program under STATEMAP award number G15AC00250.


Keywords: maps, geologic maps, Mansfield Dam quadrangle, Austin area, Central Texas


Citation
Woodruff, C. M., Jr., 2017, Geologic Map of the Mansfield Dam Quadrangle, Texas: The University of Texas at Austin, Bureau of Economic Geology, Open-File Map No. 229, map scale 1:24,000.