阿尔金山区域遥感地质特征及成矿作用概述  

REMOTE-SENSING GEOLOGICAL CHARATERISTICS AND METALLOGENESIS IN ALTUN AREA

作　　者：孟易辰[1] 李亚前[1] 王鹤轩[1] 张建树[1] 

机构地区：[1]甘肃省地质调查院,甘肃兰州730000

出　　处：《甘肃地质学报》2005年第1期58-64,共7页Acta Geologica Gansu

摘　　要：柴达木、阿尔金山、塔里木三位一体为塔里木古地台的一部分。古元古—晚太古界经历了固流相—柔流相变形变质作用后形成变质杂岩(包括表壳岩和变质侵入岩),中新元古界为浅变质碎屑岩和碳酸盐岩。中—晚奥陶纪时,拉配泉—红柳沟东西一带拉张成裂谷带,后经闭合发展演化为构造岩浆活动带;祁曼塔格弧形构造带为台缘活动带。阿尔金山断裂带是青藏高原隆升应力消减的脆性表壳断裂带。Qaidam, Altun, Tarim, three together are included into a part of Tarim paleo-platform. From Paleoproterozoic Era to late Archeozoic Erathem, it was formed metamorphic complex after deformation and metamorphism from solid liquid facies to soft liquid facies, and it was formed epimetamorphic clastic rock and carbonate rock at Mesoproterozoic-Neoproterozoic Erathem. At middle and late Ordovician Perion, from east to west, Lapeiquan-Hongliugou was extended into a rift zone, and evolved into tectonic magma active zone after closed development; Qimantage arc tectonic zone was active zone of edge of platform. Altun faulted zone is a brittle crust faulted zone which was subdued by uplift stress of Qingzhang Plateau.

关 键 词：变质杂岩 裂谷带 应力消减 阿尔金山 

分 类 号：P627[天文地球—地质矿产勘探]