收稿日期: 2014-08-19
修回日期: 2014-11-12
网络出版日期: 2015-04-07
The Metamorphism and Deformation of the Neoproterozoic Zhaertai Group and Transformation Response to the Sulfides Ore-deposit of Huogeqi Copper-Zinc Polymetallic Deposit in Inner Mongolia
Received date: 2014-08-19
Revised date: 2014-11-12
Online published: 2015-04-07
徐多勋 , 刘俊来 , 杨拴海 , 王东升 , 高鑫磊 , 王文龙 , 李国英 . 内蒙古获各琦多金属矿区新元古代渣尔泰群变质—变形及硫化物矿床对变质作用改造的响应[J]. 黄金科学技术, 2015 , 23(1) : 24 -33 . DOI: 10.11872/j.issn.1005-2518.2015.01.024
Through analysis from outcrop to microscopic scales,and quartz c-axis fabrics,we consider the Neoproterozoic rocks in the Huogeqi ore field experienced multi-phase deformation and metamorphism.Two phases of deformation contribute to the different structural characteristics in northern,central and southern belts.The first phase of deformation is characterized by NW-SE shearing at deformation temperature at about 600 ℃.The second phase of deformation is evidenced by NE-SW shearing at ralatively low temperatures.Microscopic features of the deformed sulfides indicate that the orebodies were transformed by the multi-phase deformation.Enrichment and depletion of the orebody may result from the physical remobilization caused by the shearing.
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