东海陆架盆地的区域构造背景：印度板块的影响

REGIONAL TECTONIC BACKGROUND OF EAST CHINA SEA SHELF BASIN： IMPACT FROM INDIAN PLATE

东海陆架盆地是以新生代为主的中、新生代含油气盆地，位于菲律宾板块俯冲与印度板块俯冲的前缘交接地带。印度板块与欧亚板块的俯冲挤压，使得欧亚板块浅部发育向东的挤出构造，同时，印度板块和华南地块深部的软流圈也沿欧亚板块下的软流圈通道向东南蠕变运移，在东海陆架盆地受阻而形成地幔上涌，驱动中国东部广泛裂解。印度板块向欧亚板块楔入的远程效应导致菲律宾板块俯冲后退、俯冲角度变大，这些也是东海陆架盆地断陷、构造反转、构造跃迁总体由西向东迁移的重要动力来源。

The East China Sea Shelf Basin is a Mesozoic and Cenozoic oil-gas-bearing basin located at the juncture of the subduction zones of the Philippine Sea plate and the Indian plate, in particular in the period of Cenozoic. The indentation of the Indian plate under the Eurasian plate caused extrusion tectonics in the Eurasian Plate. The mantle flow under both the Indian plate and the south China block flowed southeastward through mantle flow channels under the Eurasian plate, that made the mantle upwelling and crust rifting in East China. The subduction of the Indian plate has a long-distance im- pact to the East China Sea Shelf Basin. The tectonic phenomena observed in this region, such as the retrogression of subduction zones, the increase in subduction angle of the Philippine Sea plate, and the tectonic inversion, the migration of tectonic center and depocenter, and the structural jumping from the west to the east in the East China Sea Shelf Basin, owed their origin to the impact of Indian Plate.