COCORP Southwestern Oklahoma Siesmic Lines Revisited

Abstract

The Consortium for Continental Reflection Profiling (COCORP) seismic reflection lines 2-2A and 5-5A were acquired in 1979 and 1980 in order to probe the deep crustal structure of the Wichita Mountains and the adjacent portions of the Hardeman basin, to the south, and the Anadarko basin to the north. The interpretation of these lines by Brewer et al. (1983) has remained the standard for discussion of crustal structure in this area. The mid-crustal features at depths of 2-10 km in the Wichita Mountains Frontal Zone (WMFZ), however, were indistinctly imaged by the COCORP lines because acquisition and processing focused on deeper features. A subsequent program of oil industry-sponsored seismic investigation along short lines oriented perpendicular to the local structural trend greatly improved the image of the WMFZ. Many people familiar with the COCORP lines have not seen the lines owned by Seismic Exchange, Inc., though, as the latter have not been published.