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To study the geological structure of the East China Sea, we can reach the following conclusions by using the result of iterating the magnetic basement with the sea-magnetic field.The deep faults striking NNE and NEE-NE construct the principal structure pattern of the basement beneath the East China Sea. The faults striking NW destroy and transform violently the above-mentioned principal structure pattern, and divide the basement of some districts (or zones) into different massifs under the differential movement.The crust beneath the East China Sea shelf basin might be of a transitional one in Pre-Miocene. The extremely thick Cenozoic deposits exist on the magnetic basement, and hugely thick Mesozoic-Paleozoic deposits perhaps exist in the Su Yan-Cheju-do depression and the west part of this basin.The Diaoyu Island-Goto-retto zone may be a swelling zone of the basement for a long time. During the Paleogene and later period, the whole zone was again raised and intruded with magma.
To study the geological structure of the East China Sea, we can reach the following conclusions by using the result of iterating the magnetic basement with the sea-magnetic field. The deep faults striking NNE and NEE-NE construct the principal structure pattern of the basement beneath the East China Sea. The faults striking NW destroy and transform violently the above-mentioned principal structure pattern, and divide the basement of some districts (or zones) into different massifs under the differential movement. crust beneath the East China Sea shelf basin might be of a transitional one in Pre-Miocene. The extremely thick Cenozoic deposits exist on the magnetic basement, and hugely thick Mesozoic-Paleozoic deposits perhaps exist in the Su Yan-Cheju-do depression and the west part of this basin. Diaoyu Island-Goto-retto zone may be a swelling zone of the basement for a long time. During the Paleogene and later period, the whole zone was again raised and intruded with magma.