【摘要】 研究发现,敦-密断裂具有长期活动特点,在中生代侏罗纪,由于太平洋板块俯冲欧亚板块,整个断裂带发生大规模左旋平移,平移距离约在150～240km之间。敦-密断裂形成演化与郯-庐断裂相似,为郯-庐断裂北延主干。敦-密断裂中生代大规模左旋平移对中国北东部中生代构造-岩浆活动及金矿床形成起控制作用。更多还原

【Abstract】 Research shows that Dunhua Mishan fracture zone has the feature of long term activity. During the Jurassic, the subduction of Pacific plate resulted in the large scale sinistral strike slip movement of the Dunhua Mishan fracture zone, and the offset distance is up to 150 240 km. The Dunhua Mishan fracture zone is very similar to the Tan Lu fracture zone in formation and evolution and is considered as the north part of the Tan Lu fracture zone. The large sinistral strike slip movement of the Dunhua Mishan fracture controlled the Mesozoic tectono magmatic activities and gold mineralization in northeast China.更多还原