The deep and shallow structure,composition and its relation to earthquakes in Chaoyang — Yixian seismic region |
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| Authors: | Huaikuan Xia Zaoxun Lu Xue Niu Delu Jiang |
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| Institution: | 1. Seismological Bureau of Liaoning Province, 110031, Shenyang, China
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| Abstract: | This paper describes synthetically the seismic activity, deep and shallow structures and rock dynamic features in and near Chaoyang—Yixian region. It is supposed that there is a low velocity layer in middle crust and the three-layered crustal velocities are all lower than that in both sides of the region. There exists uplifts of upper mantle and asthenosphere-low resistance layer. It is also studied the composition of matter of three-layered crust, low velocity layer, upper mantle and asthenosphere. In the end the direct relations between the deep and shallow structure, composition and the seismic activity and new activities of faults in this region are discussed. |
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