Density model of the lithosphere in the Tsushima Basin, Sea of Japan |
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| Authors: | G Z Gil’manova V G Prokudin |
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| Institution: | (1) Climate and Coastal Disaster Research Department, KORDI, P.O. Box 29, Ansan, Seoul, 425-600, Korea;(2) Department of Ocean Environmental Science and Graduate School of Analytical Science and Technology, Chungnam National University, Taejon, 305-764, Korea;(3) Living Resources Research Department, KORDI, P.O. Box 29, Ansan, Seoul, 425-600, Korea;; |
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| Abstract: | The 2-D density modeling of the sublatitudinal deep seismic sounding profile in the Tsushima Basin (Sea of Japan) was performed.
The available data allow us to presume that the opening of the Tsushima Basin took place under conditions of an anomalously
heated mantle that fostered emplacement of mantle material into the basinal crust and basin/continental margin transition
zone of the Korean Peninsula attended by formation of the oceanic crust. The increased (relative to the normal oceanic crust)
thickness of the basinal crust was conditioned by the accumulation of a large amount of terrigenous material and volcanogenic
rocks in the upper part of the crust and underplating of mantle material in the crustal base. |
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