黄海和邻区重磁场及区域构造特征

FEATURES OF GRAVITY AND MAGNETIC FIELDAND REGIONAL TECTONICS OF YELLOW SEAAND ITS ADJACENT AREA

黄海作为大陆架浅海，在地壳性质上仍属大陆型地壳．但整个黄海的结构、性质并不完全相同．在地质、地球物理场特征上黄海可分为南、北两个部分．五莲—青岛—朝鲜半岛的临津江为一条重要的结合带．此带以北，地球物理场特征基本与华北地块相同；此带以南，则与扬子地块的性质一致．同样，江绍断裂入海之后继续北上可追朔到光州地区，是区分扬子块体与华南块体的重要界线．各块体的地球物理场特征与本区的大地构造演化史。

おellow Sea as a shallow sea of continental shelf,belongs to continental crust on crustal feature. But the structure and features of whole Yellow Sea are different in different parts. It can be divided into 2 parts (North Yellow Sea and South Yellow Sea). Wulian—Qingdao—Linjinjiang fault zone is an important stature. In the Northern side of this zone,the feature of geophysical field is the same as the North China Block;but in the Southern side of it,the same characteristic as Yangtze Block can be found. Meantime,Jiangshao—guangzhou fault zone goes into Yellow Sea,then expends to the North. In Guangzhou area of Korea,it can be found again. It is the important boundary between Yangtze and South China Blocks. The features of geophysical field in different parts due to the crustal and upper mantle structure, tectonics evolution and geodynamic environment.