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金属矿山 ›› 2014, Vol. 43 ›› Issue (01): 96-99.

• 地质与测量 • 上一篇    下一篇

云南者桑金矿构造控矿规律及找矿方向

吴赞华1,2,李忠权1,时燕华2,熊超2,3,杨海3   

  1. 1.成都理工大学沉积地质研究院,四川 成都 610041;2.江西省核工业地质局,江西 南昌 330046;3.成都理工大学核技术与自动化工程学院,四川 成都 610041
  • 出版日期:2014-02-14 发布日期:2014-02-25
  • 基金资助:

    国家自然科学重点基金项目(编号:41030426),国家“十二五”科技重大专项(编号:2011ZX05004-005-01),四川省构造地质重点学科项目(编号:SZD0408)。

Ore-controlling Structure and Prospecting Direction of Zhesang Gold Deposit in Yunnan Province

Wu Zanhua1,2,Li Zhongquan1,Shi Yanhua2,Xiong Chao2,3,Yang Hai3   

  1. 1.Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610041,China;2.Jiangxi Nuclear Industry Geological Bureau,Nanchang 330046,China;3.College of Nuclear Technology and Automation Engineering,Chengdu University of Technology,Chengdu 610041,China In order to further prove the or
  • Online:2014-02-14 Published:2014-02-25

摘要: 为进一步探明云南者桑金矿构造控矿规律及找矿方向,通过野外实地调查,综合分析者桑金矿矿床地质特征和控矿构造特征,认为矿区主要有NE向断裂构造控矿、次级褶皱构造控矿、岩体接触带构造控矿3种控矿构造类型。这些控矿构造为该区金矿床的形成提供了热源、驱动力、运移通道和富集空间。矿区经历了多次构造演化,主要有加里东期运动、印支期运动和燕山—喜山期构造活动,使得控矿构造具有多期活动性,使成矿元素多次被活化,导致成矿作用的叠加是者桑微细粒浸染型金矿床的典型特征。根据者桑金矿的构造控矿特征,下一步找矿工作应围绕与NE向断裂近于平行的断裂破碎带、次级褶皱膨胀带和岩体接触带、断裂深部进行,尤其石英发生的二次碎裂是良好的成矿标志。

关键词: 控矿构造, 找矿方向, 者桑, 微细粒浸染型金矿

Abstract: In order to further prove the ore-controlling structure and prospecting direction of Zhesang Gold Deposit in Yunnan Province,the ore-controlling structural feature and geological characteristics are analyzed based on the outdoor investigation.According to the analysis results,there are three main types of ore-controlling structure in Zhesang gold deposit:NE-trending faults,secondary folds and contact zone.These ore-controlling structures provide heat,driving force,migration pathways and enrichment space for the reformation of gold deposit in the area.The mining area has experienced several tectonic evolutions,such as Caledonian movement,Indosinian movement and Yanshan-Himalayan tectonic activity.These make the controlling structures with multi-stage activity and the ore-forming elements activated repeatedly.So the superimposed mineralization becomes the typical feature of Zhesang gold deposit.According to the characteristics of the ore-controlling structure,the fault zone,secondary folds swell band,contact zone and parallel with NE-trending fault should be focused in further prospecting work.In particular,the secondary fragmentation of quartz is the fine sign of mineralization.

Key words: Ore-controlling structure, Prospecting direction, Zhesang, Micro-disseminated gold deposits