【作者】 徐毅；

【导师】 赵鹏大；

【作者基本信息】 中国地质大学（北京） ， 矿产普查与勘探， 2008， 博士

【摘要】 豫西地区横跨华北板块南缘和北秦岭两大构造带,区域地质条件复杂,构造-岩浆活动频繁,矿产资源丰富,是我国重要的钼、钨、铝、金、银、铜、铅、锌多金属矿集区。本文以“三联式”成矿预测理论为指导,总结分析豫西地区主要内生金属矿床的成矿多样性特征,建立区域成矿谱系。在此基础上,对研究区重点成矿区带的深部找矿前景进行评价分析;同时,采用现代信息处理技术,通过对卢氏-栾川地区区域地质、地球物理和地球化学等资料的分析处理,定量化提取致矿地质异常,圈定成矿远景区带。按大地构造位置、区域成矿规律及控矿因素差异,研究区可划分为华北板块南缘和北秦岭两大成矿带,其中,华北板块南缘成矿带以Au、Ag、Mo、W、S、Fe、Pb、Zn、稀有、稀土、多金属矿产为主;北秦岭成矿带以Au、Cu、Mo、Cr、Sb、Hg、As、多金属矿产为主。区内主要内生金属矿产主要受区域构造-岩浆活动控制,成矿具有多期、多阶段的特点。成矿时代主要集中在前寒武纪、加里东期和燕山期三个阶段,对应成矿物质具有从铁-铁铜、铜锌铅-钼钨(铜)向铅锌银金锑演化规律,即成矿物质从单一到复杂,由黑色金属、有色金属向多金属演化。研究区成矿多样性特征显著,在控矿地质条件、成矿时代、矿产种类与矿产组合以及矿床成因等方面均有体现。在成矿多样性分析基础上,本文建立了研究区主要内生金属矿床的空间谱系、时间谱系及“时-空-因”综合成矿谱系。基于区域成矿多样性分析和成矿谱系规律总结,通过对矿床时空演化规律、矿产分布特征、矿化分带特征、主要控矿构造深部延深特征等因素综合分析,本文对研究区两大成矿区带内主要金属矿产深部找矿前景进行了预测评价。以“三联式”成矿预测理论为指导,利用GIS技术,本文通过卢氏-栾川地区地质、地球物理和地球化学资料的综合分析处理,提取致矿地质异常,定量圈定成矿远景区5个,并对重点找矿靶区进行了找矿潜力评价。更多还原

【Abstract】 Western part of Henan region lies across two tectonic belts which are south margin of north China plate and north Qinling. The evolution history of this region is complex and of multi-stage. With advantageous ore-forming geological circumstance, it formed one of important concentration area of Mo, W, Al, Au, Ag, Cu, Pb and Zn in China. According to the three-component theory, the author analyzed the diversity of mineralization in the studying area and built spectrum of ore deposits. Based on all of these, the author predicted the favorable regions for deep mineral exploration and quantitatively delineated geological anomalies and potential areas of mineralization, by means of GIS technique and analysis of geology, geophysical and geochemical data.According to tectonic location, ore-forming characteristics, the distributing regulation of mineral deposits, strata, structures ,magmatic rock and ore-forming epochs, west Henan region can be divided into two metallogenic regions which are: metallogenic region of Au, Ag, Mo, W, S ,Fe, Pb, Zn, Rare elements, REE and polymetallic metals on south margion of north China plate and metallogenic region of Au, Cu, Mo, Cr, Sb, Hg, As and polymetallic metals in north Qinling. The metallogenetic epochs of main endogenesis mineral deposits are controlled by region structure-magmas activities, mainly at Precambrian, Caledonian, and Yanshanian. The corresponding metallogenic changed from Fe-Cu, Cu-Pb-Zn-W-Mo, to Pb-Zn-Ag-Au- Sb.The geologic conditions in the studying area is complicated with frequent tectonic- magmatic movement and various of minerals, the diversity of mineralization mainly embodied in diversities of ore-controlled geologic conditions, ore-forming epochs, mineral types, mineral combinations and genesis of ore deposits. According to the diversity of mineralization, the time-space-genesis spectrum of main endgenesis ore deposits in the area was built.Based on the analysis of ore deposits space-time evolvement, mineralization zoning characteristics, extension of main ore-controlled structures in deep and other factors, the author summarized regional ore-forming rules and the prospect in deep area.Guided by three-component theory, through analysis of geologic, geophysical and geochemical data of Lushi-Luanchuan area by Gis technology, the geo-anomalies were distracted; the prospecting areas were delineated quantitatively.Main prospecting targets were also analyzed.更多还原