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OFM0236. Geologic Map of the Somerset Quadrangle, Texas, by B. A. Elliott. Oversize geologic map on color topographic base, map scale 1:24,000, 2018. Paper map. To purchase this publication as a downloadable PDF, please order RI0236D.
About This Publication
This map, one of several 1:24,000-scale maps of the region south of San Antonio, Texas, focuses on sand resources in the Carrizo-Wilcox formations of south-central Texas. Maps of this region provide a basic geologic framework to aid in managing water and earth resources; planning land use; identifying aquifer recharge areas; and identifying earth resources such as dimension stone, aggregate, construction sand and specialty sand, and gravel. The map illustrates the geology of Quaternary and Tertiary deposits that overlie Cretaceous strata just south of San Antonio. The Eocene-age Carrizo Sand formation is an important mineral-industry resource in the region, and this and other similar geologic maps will assist in recognizing additional economic sand resources and the aquifer recharge zone, all of which are important for water resource management in the region.
Keywords: maps, geologic maps, Atascosa County, Bexar County, Somerset area, Texas
Elliott, B. A., 2018, Geologic Map of the Somerset Quadrangle, Texas: The University of Texas at Austin, Bureau of Economic Geology, Open-File Map No. 236, scale 1:24,000.