赵世启,袁波,陈荔湘,王民良,张孝中,闫红强.陕西略阳金家河金矿床地质特征及控矿因素分析[J].西北地质,2020,53(4):120-129 ZHAO Shiqi,YUAN Bo,CHEN Lixiang,WANG Minliang,ZHANG Xiaozhong,YAN Hongqiang.Geological Characteristics and Ore-Controlling Factors of Jinjiahe Gold Deposit in Lueyang County, Shaanxi Province[J].Northwestern Geology,2020,53(4):120-129
陕西略阳金家河金矿床地质特征及控矿因素分析
Geological Characteristics and Ore-Controlling Factors of Jinjiahe Gold Deposit in Lueyang County, Shaanxi Province
投稿时间:2020-02-10  修订日期:2020-08-13
DOI:10.19751/j.cnki.61-1149/p.2020.04.011
中文关键词:  勉-略-康构造混杂岩带;金家河金矿床;地质特征;控矿因素
英文关键词:Mian-Lue-Kang structural hybrid zone;Jinjiahe gold deposit;geological features;ore-controlling factors
基金项目:陕西省地质勘查基金项目“略阳县惠家坝-金家河金锰矿普查”(61201405239)资助
作者单位
赵世启 汉中西北有色七一一总队有限公司, 陕西 汉中 723000 
袁波 汉中西北有色七一一总队有限公司, 陕西 汉中 723000 
陈荔湘 汉中西北有色七一一总队有限公司, 陕西 汉中 723000 
王民良 西北有色地质勘查局, 陕西 西安 710054 
张孝中 汉中西北有色七一一总队有限公司, 陕西 汉中 723000 
闫红强 汉中西北有色七一一总队有限公司, 陕西 汉中 723000 
摘要点击次数: 393
全文下载次数: 519
中文摘要:
      金家河金矿床位于勉-略-康构造混杂岩带中段,金矿体赋存于近东西或北西向构造蚀变带中,成矿地质条件十分有利。通过对矿区地质特征、矿化蚀变带/矿体特征、围岩蚀变及矿石矿物特征等的分析,总结了矿床的控矿因素,成矿类型为受韧性剪切带、地层及中酸性岩脉综合控制的构造蚀变岩型金矿,南华纪—震旦纪的一套火山-陆源碎屑沉积岩系为主要的矿源层,成矿与多期热液活动关系密切,发育在以碳酸盐绢云石英片岩为主的构造片理化带内,黄铁矿为主要的载金体。区内长断裂F13旁侧发育的次级韧性剪切带F14、F15、F16,既是导矿构造,也是容矿构造。
英文摘要:
      Jinjiahe gold deposit is located in the middle part of Mian-Lue-Kang structural hybrid zone. The gold orebodies occur in the nearly east-west or north-west structural alteration zone, with favorable geological conditions of mineralization. Through the analysis of mine geological characteristics, mineralization alteration belt/orebody characteristics, wall rock alteration and ore mineral characteristics, the authors summed up some controlling factors of the deposit. The mineralization type was tectonic altered rock type controlled integratedly by the ductile shear zone, formation and acidic dike. The main source bed was the volcano-terrigenous clastic sedimentary rock in Nanhua-Sinian period. The mineralization was closely related to some multiphase hydrothermal activities and developed in the tectonic slices of carbonate quartz schist, with pyrite being the main gold-bearing body. The secondary ductile shear zones of F14, F15 and F16 in this area, developed beside the long fault F13, were the ore-conducting structure and the ore-hosting structure as well.
查看全文  查看/发表评论  下载PDF阅读器
关闭