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West Texas is weli suited to a regional gravity and magnetic study, because such data have potential for resolving existing questions regarding the structural relations in this area as well as its tectonic history. In this study, gravity data have been compiled from many sources and analyzed along with aeromagnetic data from the National Uranium Resource Evaluation (NURE) program of the U.S. Department of Energy in an integrated regional study of west Texas. Complete Bouguer gravity-anomaly and total-magnetic-intensity maps and a variety of filtered maps were employed in this analysis. Several basins, such as the Hueco bol-son, Salt basin graben, Marfa basin, Presidio graben, and Valentine basin, can be delineated from the maps, as can interesting positive features associated with the Diablo Plateau, Davis Mountains, and Chalk Draw fault. Deep-seated anomalies were found to be associated with the Delaware basin, Central basin platform, and Ouachita orogenic belt.

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