Abstract
More than 15 wave groups corresponding to discontinuities within the crust and upper mantle were identified from the DSS profile over a distance of 625 km, beginning at the Kopet-Dag Range crossing the foredeep, the south slope of the Karakum platform, the Central Karakum Arch, the northwestern part of the Amu-Dar'ya basin, the Sultan-Uizdag uplift and into the Aral basin. Correlation of the seismic data with drilling data from the Karakum Arch and the south Uralian region showed that the surface of the folded basement is largely pre-Permian granitic rock. From similar correlations in this area a high velocity rock complex was conditionally assigned to the Permo-Triassic(?). The thickness of the crust along the profile varies from 48-50 km in the Kopet-Dag fore deep to 36-38 km in the Central Karakum Arch. Three zones of deep faults were identified within the profile and numerous earthquake epicenters established.—IGR Staff.
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