【摘要】 柴达木地块东南缘岩浆弧由东昆仑造山带北部近东西向岩浆带和发育于柴达木地块东部边缘的北北西向鄂拉山岩浆带构成 ,它们在侵位的时空结构、岩浆物化特征以及成因属性上均显示出一定的差异 ,并非属同一岩浆弧 (带 )。东昆仑岩浆带形成于晚古生代 -中生代早期 ,属大陆碰撞造山 ,而鄂拉山岩浆带则在三叠纪晚期出现 ,属于陆内造山 ,它们是两个不同动力学条件下的产物。更多还原

【Abstract】 The magmatic arc in the southeastern margin of the Qaidam massif is composed of the NWW striking Eastern Kunlun magmatic belt and Elashan magmatic belt. Magmatism in both belts has different emplacement age and shows various physiochemical characteristics and origin: the former was formed during late Paleozoic to early Mesozoic period during continental collision process,and the latter was formed during intracontinental orogeny.更多还原