火山岩区土壤地球化学测量数据的处理与找矿——以珲春柳树河子金铜矿区为例  

Pedogeochemical survey data processing and ore prospecting in volcanic terrain—take Liushuhezi gold-copper deposit field as an example

作　　者：臧兴运[1] 王建新[1] 赵利刚[1] 谢海东[1] 张俊华[2] 

机构地区：[1]吉林大学地球科学学院 [2]吉林大学应用技术学院

出　　处：《黄金》2007年第4期10-13,共4页Gold

摘　　要：以火山—次火山岩发育为特征的柳树河子金铜矿(化)区,受晚侏罗—早白垩世火山机构控制。土壤地球化学测量结果表明,Au元素异常与主火山口周围呈环形分布的寄生火山口中次火山岩株(闪长玢岩)分布位置相吻合,Cu元素异常与火山机构中心相酸性次火山岩(花岗斑岩)小岩株空间位置相吻合。结合矿区地质背景分析并进一步对土壤测量数据处理,确定出本区金矿主要控矿构造主要为北西向,北东向和南北向次之,受火山构造和闪长玢岩小岩株联合控制;铜矿主要受花岗斑岩岩株控制。With volcanic-subvolcanic rock as characteristic, Liushuhezi gold-copper deposit field is controlled by Jura-early Cretaceous volcano organization. The result of the pedogeochemical survey indicates that Au abnormality distribution fits with the ringwise distributed subvolcanic laccolith （diorite-porphyrite） around the main crater, and Cu abnormality distribution fits with the acid granite-porphyrite laccolith in the main crater. Combining with the geology background and data processing, it is concluded that the primary direction of Au ore-controlling structure is NW, and then NS and NE, controlled by volcano structure and diorite-porphyrite laccolith, and Cu ore body is controlled by granite-porphyrite laccolith.

关 键 词：火山岩区 土壤地球化学 测量数据 找矿 柳树河子金铜矿区 

分 类 号：P618.51[天文地球—矿床学]