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J4 ›› 2011, Vol. 19 ›› Issue (3): 55-58.

• 矿产勘查 • 上一篇    下一篇

四川银厂金矿地质特征及成因探讨

高永军1,任广智1,冀炳信2,王新忠3   

  1. 1.中国黄金集团公司,北京100011;
    2.河北金厂峪金矿,河北唐山064307;
    3.四川平武中金矿业有限公司,四川绵阳622550
  • 收稿日期:2010-11-30 修回日期:2011-04-28 出版日期:2011-06-30 发布日期:2012-03-28
  • 作者简介:高永军(1972-),男,河北无极人,高级工程师,从事岩金矿山地质工作.axjkgyj@126.com

Geological Characteristics and Genesis of Yinchang Gold Deposit,Sichuan Province

GAO Yongjun1,REN Guangzhi1,JI Bingxin2,WANG Xinzhong3   

  1. 1.China National Gold Group Co.,Ltd.,Beijing 100011,China;
    2.Jinchangyu Gold Mine,Tangshan 064307,Hebei,China;
    3.Sichuan Pingwu China National Gold Mining Co.,Ltd.,Mianyang 622550,Sichuan,China
  • Received:2010-11-30 Revised:2011-04-28 Online:2011-06-30 Published:2012-03-28

摘要:

通过研究银厂金矿床地质特征和矿床成因,认为银厂金矿赋矿地层为下石炭统雪宝顶组下段、下二叠统三道桥组上段及中三叠统杂谷脑下段;金矿化与黄铁矿化、毒砂矿化、辰砂矿化、褐铁矿化及黄矿化关系密切。沉积成岩期,由于机械搬运和分选,形成富含金的富集层。矿源层形成之后,由于构造作用和区域变质作用产生的热能将活动于岩石孔隙和裂隙中的水加热,形成富含硫的热水溶液,金随热液迁移到断裂破碎带时,因压力、温度和酸碱度变化,沉淀富集成矿。

关键词: 地质特征, 矿床成因, 银厂金矿床, 四川省

Abstract:

Based on the study of geology and causes of Yingchang gold deposit,we suggest that gold mineralization hosted in the lower Carboniferous Xuebaoding formation,lower Permian upper Sandaoqiao formation,mid-Triassic system lower Zagunao formation.Gold mineralization is closely related to pyritization,arsenopyrit mineralization, cinnabar mineralization,limonitization,realgar mineralizantion and orpiment mineralization.During in the diagenesis stage,mechanical handling and sorting,through,which the gold-rich brine can move to a site of deposition,After that the thermal energy produced by tectonic and regional metamorphism heat the water,which was stored in the rock pores and cracks,formed sulfur-rich hydrothermal solution.As the migration of gold contained in the hydrothermal fluids to the fault,the changes of the pressure,temperature and pH led to the enrichment of ore.

Key words: Geological Characteristics, Genesis, Yinchang gold deposit, Sichuan Province

中图分类号: 

  • P618.51

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