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川西丹巴美河石英脉型金矿控矿构造研究
发表时间：2008-01-15 浏览量：2372 下载量：560
| 全部作者： | 李元庆，王根厚，万永平 |
| 作者单位： | 中国地质大学地球科学与资源学院；陕西延长石油集团公司研究院 |
| 摘 要： | 美河石英脉型金矿位于松潘—甘孜造山带东缘，主要控矿构造为断裂构造和褶皱构造。研究区的构造格架以北西向断裂为主，并有东西向，北东向断裂与其配套，充分显示构造控矿的层次性和规律性。褶皱构造的轴线北西向延伸，控制着矿脉的形成、分布和空间位置。沿矿脉发育许多次级构造，岩石发生强烈变形，普遍发育劈理化带。北西向的东谷断裂和五号闸断裂是主要的导矿构造。容矿构造以北西、北东、北北东向（近南北向）的透镜状的张性断裂为主。容矿空间主要发育在褶皱的轴部虚脱的位置、压扭性断裂的交汇处以及挤压剪切所形成的破裂构造中。 |
| 关 键 词： | 控矿构造；美河石英脉型金矿；赤平投影；丹巴；东谷断裂 |
| Title： | A study on ore-control structures of the Meihe Quartz-vein-type Gold Deposits, Danba, West Sichuan |
| Author： | LI Yuanqing,WANG Genhou, WAN Yongping |
| Organization： | School of Earth Sciences and Resources, China University of Geosciences；Institute of Shaanxi Yanchang Petroleum group Corporation |
| Abstract： | Meihe Quartz-vein-type Gold Deposits in the eastern margin of Songpan GarzeˆOrogenic Belt, the tectonic faults and folds are main ore-control structures. The study area north of the West tectonic framework to fracture, and there are things to the East-West, North-East to fracture their support, fully demonstrating the level of ore-control structures and regularity. Fold axis to the extension of the North-West, control the formation of the veins, distribution and spatial location. There are many sub-structure, strongly deformed rocks and cleavage belt along the vein .The faults extending to NW ,Dongku fault and Wuhaozha fault , are the main ore-leading structures and the ascendent orientation of the ore-bearing structures are NW, NE, NNE(near SN) lentoid-open fracture . Host fold in the space of the main shaft of the collapse of the location of pressure shear and compression fracture junctions formed by shear rupture in the structure. |
| Key words： | ore-structure; Meihe Quartz-vein-type Gold Deposits; polar stereographic projection; Danba; Dongku fault |
| 发表期数： | 2008年5月第1期 |
| 引用格式： | 李元庆，王根厚，万永平. 川西丹巴美河石英脉型金矿控矿构造研究[J]. 中国科技论文在线精品论文，2008，1（1）：85-90. |
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