| 广西金山金银矿区成矿构造分析和构造地球化学找矿 |
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| 引用本文： | 钱建平,谢彪武,陈宏毅,白艳萍,吴小雷.广西金山金银矿区成矿构造分析和构造地球化学找矿[J].现代地质,2011,25(3):531-544. |
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| 作者姓名： | 钱建平 谢彪武 陈宏毅 白艳萍 吴小雷 |
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| 作者单位： | 桂林理工大学地球科学学院,广西桂林,541004 |
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| 基金项目： | 中国科学院地球化学研究所矿床地球化学国家重点实验室开放基金项目，教育部工程研究中心有色及贵金属隐伏矿床勘查项目和广西有色集团项目 |
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| 摘 要： | 通过广西金山金银矿区现场地质调查和构造编图,系统总结了矿区构造控矿规律。在此基础上针对主控矿断裂开展地球化学找矿研究。矿区兼有产于主控矿断裂带中的蚀变岩型金矿和侧羽状张裂带中的石英脉型金矿两种类型,不同的构造环境控制不同的矿化类型,可互为找矿标志;矿体受构造界面控制,控矿断裂成矿期不均一张开导致矿化分段富集;成矿期的构造活动表现为主断裂上盘向南西斜滑,相应地矿体向南西侧伏、倾斜延深明显大于延长;矿体中部厚、两侧薄,11号勘探线为矿化富集中心。随热液蚀变的增强,Ag、Au、Cu、Pb和Zn含量逐渐增高。因子分析表明,矿区主成矿元素组合为Ag、Au、Cu、Pb和Zn,可作为找矿的指示元素。元素分布型式、元素组合分析和分形分维统计显示,本区Ag、Au成矿具多阶段性。矿区构造地球化学原生晕分带序列自上而下为Au-Hg-As-Bi-Sn-Sb→W-Co-Cr-Ti-Ni-Ag-V-Mn→Cu-Zn-Pb-Mo,显示该矿床为一浅剥蚀矿床。在综合分析成矿构造、岩浆活动、蚀变特征和构造地球化学原生晕分带资料的基础上,认为矿区深部和外围仍有较好的找矿前景。其中矿区深部找矿重点在11线南西侧。
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| 关 键 词： | 金银矿 广西金山 构造控矿规律 构造地球化学 成矿预测 |
Analysis of Ore-controlling Structure and Prospecting of Tectono-geochemistry in Jinshan Au-Ag Mining Area,Guangxi |
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| QIAN Jian-ping,XIE Biao-wu,CHEN Hong-yi,BAI Yan-ping,WU Xiao-lei.Analysis of Ore-controlling Structure and Prospecting of Tectono-geochemistry in Jinshan Au-Ag Mining Area,Guangxi[J].Geoscience——Journal of Graduate School,China University of Geosciences,2011,25(3):531-544. |
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| Authors: | QIAN Jian-ping XIE Biao-wu CHEN Hong-yi BAI Yan-ping WU Xiao-lei |
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| Institution: | QIAN Jian-ping,XIE Biao-wu,CHEN Hong-yi,BAI Yan-ping,WU Xiao-lei(College of Earth Science,Guilin University of Technology,Guilin,Guangxi 541004,China) |
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| Abstract: | Through the field investigation and structural maping of the Jinshan Au-Ag mining area in Guangxi Province,the ore-controlling structural regularities have been summarized.On this basis,the prospecting study of geochemistry was carried out in the main ore-controlled fault zone.There are two deposit types in the mining area,one is altered rock type gold deposit which was hosted in the main ore-controlled fault zone,and the other is quartz vein type gold deposit which was hosted in the flank pinnate tension f... |
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| Keywords: | Au-Ag ore deposit Jinshan Guangxi ore-controlling regularity of structure tectono-geochemistry metallogenic prognosis |
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