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胶东望儿山金矿成矿构造分析和成矿预测
引用本文:钱建平,陈宏毅,吴小雷,王自国,蒙勇.胶东望儿山金矿成矿构造分析和成矿预测[J].大地构造与成矿学,2011,35(2):221-231.
作者姓名:钱建平  陈宏毅  吴小雷  王自国  蒙勇
作者单位:桂林理工大学地球科学学院;桂林矿产地质研究院;江苏煤炭地质局;
基金项目:山东黄金矿业股份有限公司焦家金矿项目; 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(200913); 有色及贵金属隐伏矿床勘查教育部工程研究中心和广西地质工程中心重点实验室基金项目资助
摘    要:通过井下现场调查、构造编图,提出望儿山金矿区控矿构造型式为压扭性断裂构造系统之菱形结环式构造.矿区构造控矿规律表现为:矿体在剖面上呈特征的"S"型,矿体规模受制于构造规模,在倾向方向上矿体呈平行近等距产出,矿体间距多在60m±;矿化在垂向上具有明显的分段富集规律,共包括3个富集段,大体上矿体富集区间垂直距离180-26...

关 键 词:金矿  成矿构造  构造控矿规律  成矿期构造应力场  成矿预测  望儿山  胶东

Study of Ore-Forming Structure and Metallogenic Prognosis of the Wang'ershan Gold Mine in Jiaodong Peninsula
QIAN Jianping,CHEN Hongyi,WU Xiaolei,WANG Ziguo,MENG Yong.Study of Ore-Forming Structure and Metallogenic Prognosis of the Wang'ershan Gold Mine in Jiaodong Peninsula[J].Geotectonica et Metallogenia,2011,35(2):221-231.
Authors:QIAN Jianping  CHEN Hongyi  WU Xiaolei  WANG Ziguo  MENG Yong
Institution:QIAN Jianping1,CHEN Hongyi1,WU Xiaolei2,WANG Ziguo3 and MENG Yong1(1.College of Earth Science,Guilin University of Technology,Guilin 541004,Guangxi,China,2.Guilin Research Institute of Geology for Mineral Resources,3.Coal Geological Bureau of Jiangsu,Nanjing 210046,Jiangsu,China)
Abstract:Based on underground geological and structural mapping,the authors proposed that the ore-controlling structure is a diamond ring type in a compresso-shear fault system. The structural controls on orebodies can be concluded as follows: 1) The orebody is limited by structures and exhibits "S" shape on the vertical section.2) The oreveins are somewhat parallel and isometric with spacing of about 60m.Three enriched sections of gold mineralization can be recognized,which are 180~260m in thickness and separated by low grade or barren sections of 80~100m in thickness. 3) The orebodies are preferentially NE-NNE oriented,and the pitches of the NE-vein group and the near SN-vein group are 56°SW and 51°NE,respectively. The tectonic stress field shifted from NWW-compression prior to mineralization,NWW-tension during mineralization,and NNW-compression post-mineralization. Based on the comprehensive geological investigation,structural mapping and numerical simulation of tectonic stress field in mineralization period,five metallogenic prognosis sections are proposed in this mining area.
Keywords:gold mine  ore-forming structure  structurals  tectonic stress field  metallogenic prognosis  Wang′er-shan  Jiaodong
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