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本文综合分析了东海及南海北部海域的地质、地球物理、航磁和钻探等资料,认为东海陆架盆地西缘断裂和北卫—神孤断裂西侧海域盆地的基底大地构造性质和新生代沉积盆地的类型及演化特征均有所不同:西北部海域盆地的基底是华南加里东构造带伸向海域的部分,东南部海域的东海陆架盆地,老第三系至下中新统具有地槽型的沉积特征,晚第三纪至早更新世时期的造山运动接连发生,盆地中央部分上中新统一上新统也被挤压成一系列的长垣型褶皱和逆断层的伴生,很显然,这里是台东纵谷以西的台湾喜山褶皱构造带向北东方向伸向海域的部分,该带继续向北东方向可延伸到日本西南海域的五岛列岛和朝鲜海峡的对马岛一带。
In this paper, the geologic, geophysical, aeromagnetic and drilling data of the East China Sea and the northern South China Sea are comprehensively analyzed. It is concluded that the basement tectonics and the Cenozoic sedimentary basins in the western margin of the East China Sea Shelf Basin and the basin in the west of the Beiwei- The types and evolution characteristics of these basins are different: the basement of the northwestern basin is the part of the Caledonian structural belt extending to the sea in the South China Sea, the East China Sea shelf basin in the southeast sea area, and the Neogene to the Lower Miocene of the East China Sea have the groove type Sedimentary characteristics, orogenic movement from the Late Tertiary to Early Pleistocene occur in succession, and the Middle Pliocene and Pliocene in the central part of the basin are also squeezed into a series of Changyuan fold and inverse faults. Obviously, here is The part of the Taiwan Himalayan fold belt west of Taitung Rift Valley that extends northeastward to the sea area can continue northeastward to the Wakushima area in the Wushima Islands and Korea Strait in the southwest of Japan.