印支旋回 meaning in English

indosinian cycle

On the basis of analysis on the characteristics of structural evolution , the growth of the source rocks is analyzed . in the period of mesozoic - palaeozoic , caledonian events and the evolution of hercynian - early indo - chinese cycle are experienced in two - phase marine passive continental margin and craton basin in the lower and middle yangtze region , by which stable enormous thick mesozoic - palaeozoic deposites are induced , six sets of source rocks are produced , it has a strong capacity of hydrocarbon generation
摘要通过构造演化特征分析了海相烃源岩的发育，中、下扬子区中古生代经历了加里东和海西早印支旋回两个阶段的海相被动大陆边缘和克拉通盆地演化，形成了岩性稳定的巨厚中古生界，发育了6套烃源岩，具有较强的生烃能力。