河南商城汤家坪钼矿地球化学异常特征及找矿标志  

Characteristics of geochemical anomaly of the Tangjiaping molybdenum deposit and its prospecting indicators in Shangcheng,Henan

作　　者：马宏卫[1] 

机构地区：[1]河南省地质调查院

出　　处：《矿产与地质》2007年第5期520-526,共7页Mineral Resources and Geology

基　　金：2006年度河南省探矿权采矿权使用费及价款地质矿产调查项目(项目编号Q4)资助

摘　　要：商城汤家坪钼矿是近年在大别山地区探明的一处大型钼矿床。该矿区地球化学异常特征研究表明,成矿元素含量变化与花岗斑岩体空间位置、岩石类型、蚀变特征密切相关;在三度空间内,地球化学异常的分布严格受斑岩体控制;M o异常浓度分带清晰,其内带指示了钼工业矿体位置,中带反映了边界矿体和强矿化范围,外带反映了弱矿化和矿化蚀变范围。在对成矿地质背景、指示元素地球化学参数和地球化学异常特征分析研究的基础上,建立了地质、地球化学找矿标志。The Tangjiaping molybdenum deposit in Shangcheng County is a large-scale molybdenum deposit explored in Dabieshan region in recent years. The study on the characteristics of geochemical anomaly has proved that the content variation of metallogenic elements is closely related to the space position of granite porphyry bodies, rock types and alterative features; in 3D space, the distribution of geochemical anomaly is controlled strictly by the porphyry bodies the concentration zoning of the molybdenum anomaly are very distinct with the inner zone indicating the location of the molybdenum industrial orebodies, the middle zone reflecting the marginal orebodies and the range of strong mineralization, as well as the external zone showing the boundary of slight mineralization and the mineralized alteration. Based on the analysis and research of the metallogenic background, geochemical parameter of indicating elements and the characteristics of geochemical anomaly, the paper has established geological and geochemical prospecting indicators.

关 键 词：斑岩 钼矿床 找矿标志 地球化学异常特征 分带序列 汤家坪 商城 

分 类 号：P618.65[天文地球—矿床学]