Development And Evolution Of Heilongjiang Mictite In Yilan Area

The multiply and dispersed of continent are two knockout questions in continent geology and continent dynamics, as extensive continental margin belt in the east of china, it has important place in the East Asia, there reserve many evidences about early moving of earth's crust. Because ocean lithosphere continually renews, and continent lithosphere continually overlap accumulates, resuming the evolution history of ocean and continent lithosphere is very significant to researching ridge of continent, the east of china comes into the natural laboratory in researching the forming and evolution of early earth's crust.The Jiamusi terrain is in the east of Xingmeng orogenic belt, clipped by Huabei plate, Siberia plate and Pacific plate, where the three plates interact in the place. The terrain is importance of ridge in East Asia to constitute part, its constitution, structure attribute and early evolution history, are paid attention to geotectonist and petrologist in or out of china. One-step progress to study of Jiamusi terrain, all would get notable significance to structure and evolution knowledge about northeast of china even the East Asia.In company with the application of Plate tectonics in continent, continent is divided into many small blocks when the blue schist, ophiolite and mélange were qualified as the sign of reaction between oceanic shell and the continental shell. In the west of Jiamusi terrain, there emerging a suit rock contain break Ophiolite suite alone the Mudanjiang fault. It suggest there existed a former ocean basin or ocean trough between Jiamusi terrain and Songnen terrain, now this suit of rocks is accrete rock which emerge at the earth's surface. According the study of this accretes rock, it can run down early evolution...