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首页   >    黄金地质

熊耳山地区康山金矿田地质特征及成矿模式

  • 徐宪立|禹明高|张剑锋
  • 作者单位:
  • 河南省有色金属矿产探测工程技术研究中心&河南省有色金属地质矿产局第六地质大队|河南省有色金属地质矿产局第六地质大队|河南金渠黄金股份有限公司
  • 基金项目:

  • 河南省财政科研顶目(豫财办建〔2007〕262号)
  • 详细信息:

  • 作者简介:
  • 徐宪立(1975—),男,河南巩义人,高级工程师,从事找矿勘查工作;郑州市金水东路16号鑫地大厦,河南省有色金属矿产探测工程技术研究中心,450016;E-mail:2285384111@qq.com
  • 通讯作者:
  • E-mail:343714140@qq.com,15138735017
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Geological characteristics and metallogenic patterns in Kangshan Gold Field in Xiong’ershan area

  • English Author:
  • Henan Non-ferrous Mineral Exploration Engineering Research Center&No.6 Geological Unit Team,Henan Province Non-ferrous Metals Geological Mineral Resources Bureau|No.6 Geological Unit Team,Henan Province Non-ferrous Metals Geological Mineral Resources Bureau|Henan Jinqu Gold Co.,Ltd.
  • Unit:
  • 摘要
  • 在线预览
  • 参考文献

摘要:

康山金矿田属于秦岭造山带的北部逆冲褶皱带,位于东西向马超营断裂与北东向上宫—星星印断裂的交汇处,矿体呈脉状、透镜状赋存于北东向次级断裂中,矿石类型主要为构造蚀变岩型及少量石英脉型,与金矿化关系最为密切的蚀变是硅化、碳酸盐化、黄铁绢英岩化。通过搜集康山金矿田内成矿流体包裹体、同位素地球化学等资料,并进行综合分析,认为成矿流体属于中低温度、低盐度、中等密度、含CO2的H2O-NaCl体系;成矿物质来自结晶基底太华岩群;大气降水与岩浆流体的混合,以及温度的降低是矿质沉淀的主要因素。结合区域成矿特征,建立了康山金矿田成矿模式。

关键词:

地质特征;流体包裹体;同位素;成矿模式;康山金矿田

Abstract:

Kangshan Gold Field,part of the north thrust fold zone of Qinling orogenic belt,is located at the intersection of EW Machaoying fault and NE Shanggong-Xingxingyin fault.The ore bodies are in veins and lens,occurring in NE secondary fault.The ores are mainly structural alteration rock type and partly quartz vein type.The alteration most closely related to gold mineralization is silicification,carbonatization,and beresitization.With collection and comprehensive analysis of the ore-forming fluid inclusion and isotopic geochemistry data within Kangshan Gold Field,the study takes that the ore-forming fluids belong to low temperature,low salinity,medium density,CO2 containing H2O-NaCl system;the ore-forming materials come from crystallized basement Taihua Group;atmospheric precipitation and magmatic fluid mixing and decreasing temperature are the main reasons for ore materials sedimentation.Based on regional metallogenic features,the metallogenic patterns in Kangshan Gold Field are established.

Keywords:

geological characteristics;fluid inclusion;isotope;metallogenic pattern;Kangshan Gold Field