摘要
勘查区位于碧口微板块(古陆)以北边缘,南秦岭南缘的勉略缝合带内,深大断裂从矿区北部通过,该断裂自早泥盆纪以来,由于深大断裂的活动和多期次裂谷、板块俯冲、碰撞、挤压等构造作用,致使该区域上发生了不同构造力学体制下的多期次壳-幔沟通。为物质和能量的大规模运移和交换、幔源物质的集中上涌以及岩石矿物分异等作用创造了十分有利的构造条件。该地区的金矿形成与岩浆活动关系密切,成矿过程复杂,成矿类型多样。
Exploration area is located in the north of Bikou micro plate(continental)edge of the southern margin of the south Qinling mian slightly suture zone,deep fault from northern mining area,the fault since the early devonian,due to the deep fracture activity and multiphase rift,subduction,collision and subduction of tectonism,that took place on the area under different structural mechanics system issue of shell-screen more communication.It provides favorable structural conditions for mass migration and exchange of matter and energy,upwelling of mantle source material and rock and mineral differentiation.The formation of gold deposits in this area is closely related to magmatic activity.
作者
朱生攀
ZHU Sheng-pan(Lanzhou Mineral Exploration Institute,Gansu Nonferrous Metal Geological Exploration Bureau,Lanzhou 730046,China)
出处
《甘肃冶金》
2020年第5期90-91,95,共3页
Gansu Metallurgy
关键词
文县大路梁一带金矿
找矿标志
围岩蚀变
gold mine in Daluliang area of Wenxian county
prospecting mark
wall rock alteration
