摘要
深入研究了跃进山岩系的物质组成与构造特点，确认其为佳木斯地体东缘晚古生代—中生代的增生杂岩，探讨了该杂岩形成与演化的构造作用过程。
s Yuejinshan complex is composed of weakly metamorphosed and strongly deformed rocks, granitoid and basic-ultrabasic rocks, which were originated from continental margin or island arc. Due to the high-pressure hornblendes and the jadeite, it is reasonable to be proposed that Yuejinshan complex had once experienced low temperature and high pressure metamorphism. The basic-ultrabasic rocks and Raohe ophiolites have been studied in detail, they are formed in different tectonic environment. Yuejinshan complex is the accretional complex which was formed during Yuejinshan terrane collision and accretion. According to the evolution history, a Mesozoic tectonic evolution model of the northeast Asia has been proposed, which includes following three stages: compressional subduction, extensional subduction and transform fault.
出处
《长春科技大学学报》
CSCD
1998年第4期380-385,共6页
Journal of Changchun University of Science and Technology
基金
国家教委博士点基金
