浅议松江—牛皮礁裂陷带地球物理场特征及其地质构造意义

A Preliminary study on the Characteristics of Geophysical Field and the Significance of Geological Structure of Songjiang - Niupijiao Faulted & Downwarped Belt

在上海市的南部有一条十分醒目的重、磁低值带,它是中、新生代上地壳上部带状裂陷构造的反映。它的形成有其一定的深部背景,且经历了南、北地块相互挤压一拉张的复杂演化历史,是上海地块内一条重要的地质构造界线。

In the southern patr of Shanghai,there has existed a striking lower-valuedgravity and magnetic belt,which being the reflection of faulted &.downwarped belt structure in the up-per part of the crust of Mesozoic and Cenozoic Era.Its formation has some deep background and also has experienced the complicated evolution of mutual compressiontension between the south and the north land masses as well.it is an important geologic structure boundry in Shanghai land mass.