摘要
西陵梯953金矿位于大兴安岭中北段,赋存于顺层滑脱带内,金矿体总体产状305°～ 325°/65°～80°,矿脉宽1～2.5 m,多条矿脉平行,与闪长岩脉伴生.通过分析对比,笔者认为该区域金矿形成于中生代伸展作用背景下,其中,古生代建立了区域构造基本格架,中生代晚侏罗世—早白垩世大兴安岭主脊伸展作用形成区域滑脱构造,有利于工作区金矿的形成.
The Xilingti No.953 gold deposit located in centtral-northern part of the Daxinganling mountain,occurs in the bedding decollement zone.The attitude of the gold orebody is 305° ～325°NW-trending at the dip angle of/65° ～ 80°,and the width of gold-bearing vein is from 1 m to 2.5 m.The gold-bearing veins distributed parallelly,and associated with the diorite dike.Based on the integrated analysis,the authors think that the gold deposits are formed in the regional extension background of Mesozoic Era.During the Paleozoic Era,the regional structure frame was formed,then the regional decollement structure formed in the background of the extensional process of main ridge of the Daxinganling mountain in late Jurassic-Early Cretaceous Epoch of Mesozoic,which provides the favorable structural condition for the formation of the gold deposit.
出处
《矿产勘查》
2013年第6期642-648,共7页
Mineral Exploration
基金
内蒙古鄂伦春自治旗奎勒河地区金铜钼多金属矿调查评价项目(编号:1212011140066)资助
关键词
构造岩片
滑脱构造
盆岭结构
大兴安岭
953金矿
tectonic slices
decollement tectonic
basin-range structure
No.953 gold deposit
Daxinganling mountain
