The Northern end of the Dead Sea Basin: Geometry from reflection seismic evidence |
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| Authors: | Abdallah S Al-Zoubi Till Heinrichs Isam Qabbani Uri S ten-Brink |
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| Institution: | aAl-Balqa' Applied University, Faculty of Engineering, Surveying & Geomatics Department, Salt, 19117, Jordan;bGoettingen University, Geoscience Center, Department of Applied Geology, Germany;cNatural Resources Authority, Amman, Jordan;dU.S. Geological Survey, Woods Hole Science Center, Woods Hole, MA 02543, USA |
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| Abstract: | Recently released reflection seismic lines from the Eastern side of the Jordan River north of the Dead Sea were interpreted by using borehole data and incorporated with the previously published seismic lines of the eastern side of the Jordan River. For the first time, the lines from the eastern side of the Jordan River were combined with the published reflection seismic lines from the western side of the Jordan River. In the complete cross sections, the inner deep basin is strongly asymmetric toward the Jericho Fault supporting the interpretation of this segment of the fault as the long-lived and presently active part of the Dead Sea Transform. There is no indication for a shift of the depocenter toward a hypothetical eastern major fault with time, as recently suggested. Rather, the north-eastern margin of the deep basin takes the form of a large flexure, modestly faulted. In the N–S-section along its depocenter, the floor of the basin at its northern end appears to deepen continuously by roughly 0.5 km over 10 km distance, without evidence of a transverse fault. The asymmetric and gently-dipping shape of the basin can be explained by models in which the basin is located outside the area of overlap between en-echelon strike-slip faults. |
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| Keywords: | Dead Sea Basin Pull-apart basin Basin asymmetry Transform fault |
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