岩浆作用

• During late mesozoic and cenozoic , extensions were widespread in eastern china and adjacent areas . the induced compressions and extensions , uplifting and subsidence as well as large - scale magamatism , increased the pre - existing ne - nne trending faults , uplifts and subsidence belts . this is how ; the giant transform structure led to the formation of xihu depression
  在晚中生代与新生代，拉张作用广泛分布于中国东部及邻区，导致了挤压与拉张、隆起与沉降以及大规模的岩浆作用，于是使早先存在的北东北北东向断层、隆起带与沉降带增强，这也是大的转换断层形成西湖凹陷地层的机理。