论文部分内容阅读
北祁连早古生代俯冲杂岩带分布于青海省祁连县清水沟-百经寺地区。主要由裂谷型火山岩、蛇绿构造混杂岩、变质沉积岩和高压变质岩(蓝片岩和榴辉岩)等组成。各岩石单位均以构造岩片形式产出,构成由北向南的逆冲叠瓦式结构样式。俯冲杂岩带的变形特征、构造序列及变质作用特征,揭示了北祁连造山带的俯冲碰撞造山过程。
The North Qilian Early Paleozoic subduction complex belt located in Qilian County Qinghai ditch - Baijingsi area. Mainly by the rift-type volcanic rocks, ophiolite tectonic mélanges, metamorphic sedimentary rocks and high-pressure metamorphic rocks (blue schist and eclogite) and other components. The rock units are all produced in the form of tectonic slices, forming a thrusting shingled structural style from north to south. The deformation features, structural sequences and metamorphic features of the subduction complex belt reveal the subduction collision orogeny of the North Qilian orogenic belt.