东海盆地构造区划及其特征

Tectonic districts and its characteristics in East China Sea Basin

东海海城构造区划可分成2个盆地和3个隆起。东海盆地可划分成6个坳陷3个隆起;进而可分为16个次一级构造单元。盆地主要构造特征是东西成带,南北分块:即一个盆地三种结构,地层时代东西分带,构造运动与岩性东西分异,地质由西向东演化史;南北在深部地质结构、力学性质及(?)闭类型。构造格局及火成岩分布、沉积环境、地热梯度等诸方面有差异.文中讨论了构造特征形成的机制及盆地内重要的矿藏资源。

There are five zones on tectonic districts in East China Sea area,i, e. two basins and three massifs. There are six depressions and three uplifts in 16 East China Sea Basin, and these tectonic units can be subdivided into 16 ones.This article indicates that many tectonic characteristics divided into longitudinal zones and latitudinal blocks, and their many evidence, i. e. three constructions in the basin, differences in eastern and western of stratigraphic age, of tectoniation and lithology, of geological evolutionary history; distinction in southern and northern of geological constructions at depth,of mechanics character and trap types,of structural pattern and volcanic distribution, of sedimentary environments, of geothermal gradient etc.This article discussed froming mechanism of tectonics characteristics and suggested significant ore source in East China Sea Basin.