作　　者： ;

机构地区： 中国地质大学北京

出　　处： 《新疆地质》 2008年第4期356-362,共7页

摘　　要： 新疆凌云铜矿大地构造位置属塔里木板块北缘活动带之南天山晚古生代弧后盆地.由于受区域构造影响,南天山形成一系列近EW向韧-脆性断裂带及剪切褶皱,伴随强烈的岩浆活动,为铜的活化、富集提供了有利条件.铜矿化带赋存于中泥盆统萨阿尔明组第二岩性段一套灰绿色富钠质海相火山岩-角斑岩系中,构造变形表现形式为脆-韧性剪切带及其紧闭褶皱,变质作用为低绿片岩相区域低温动力变质. Lingyun Copper Deposit is located in the Shanshan County, Xinjiang. The regional geological structure position is at the South Tianshan back-arc basin of lower Polezoic of the North active margin of Tarim Plate. A set of close E-W extending ductile-brittle fault zones and sheared folders were formed, which were affected by the regional structure and the strong magma movement. The above movements offered a favorable situation for the copper activation and concentration. The copper mineralization zone is occurred in the set of grey-green rich Na keratophyre of sea-faces volcanic rocks of Saerming Formation of middle Devonian. The exhibition style of the structure metamorphose is ductile-brittle shear zone and two times superposed folders.The metamorphism is low temperature dynamical metamorphism of the low grade green shris faces.

关 键 词： 南天山 弧后盆地 中泥盆统 脆 韧性剪切带 叠加褶皱

领　　域： [天文地球] [天文地球]