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米家山隆—滑构造是在古浪运动造山前期伸展体制下形成的。隆—滑构造的内核隆起由顺基底与盖层之间的接合面呈席状同构造侵位的马黄沟梁单元组成。由于花岗岩的局部隆起,在阴沟群变质岩系内多层滑脱型韧变带与流褶层形成的同时,因变形分解作用,导致火山岩透镜体与韧变带及流褶层相间分布的格局。在古浪运动收缩体制下,米家山岩体呈塑性底辟式再就位,从而形成泉沟单元。晚期的祁连运动产生的构造形迹横跨叠加于古浪运动构造形迹之上,最终使米家山深成岩体分布于穹形构造核部。
Mi Jia Shan Long - slip structure is formed in the Gulang movement orogeny stretching system. The uplift-slip tectonic core uplift is made up of Mahuang ditch beam unit with the same structure and emplacement at the junction between the basement and cover. Due to the local uplift of granite, the multi-layer slipping ductile zone and streamfold formation in the gabbro metamorphic rocks are accompanied by deformation and decomposition, resulting in the phase distribution of volcanic lens bodies and ductile zones and fluffy layers. Under the Gulang movement contraction system, the Mijiashan rock mass is in the form of a plastic diapirism, thus forming the Quangou unit. Late Qilian tectonic trace generated superimposed on the Gulang movement tectonic trace, and ultimately make the Mi Jia Shan deep plutons distributed in the dome-shaped nuclear.