上黄旗——乌龙沟断裂带走马驿——大河南区段地球化学异常解析

An analysis of the geochemcial anomaly in Zoumayi-Dahenan area along Shanghuangqi-Wulonggou faulted belt

上黄旗—乌龙沟深断裂带是华北地区重要的构造—岩浆—成矿带。文中应用河北省蔚县幅1∶25万区域水系沉积物地球化学调查获得的39种元素含量数据,对上黄旗—乌龙沟断裂带蔚县幅境走马驿—大河南区段水系沉积物地球化学异常进行了解析,通过因子分析确定了共生元素组合,得到的Mo-W-Bi-Cu、Pb-Zn-Ag-Cd及Au-HgAg 3个地球化学异常系列与区域构造、岩浆岩、成矿作用的关系非常密切。该成果有效地解决了多元素异常在空间上交织、难以确定异常元素组合及分布特征的难题,可以为该区地球化学找矿部署、区域成矿规律研究等提供参考。

The Shanghuangqi-Wulonggou fauhed beh is an important tectonic-magmatic-melallogenie belt in North Cllina. Based on 1 ： 250000 stream sediment geochemical survey in Weixian Sheet of Hebei Province, the authors obtained content data of 39 kinds of elements for factor analysis, and made an analysis of stream sediment geochemical anomalies in Zoumayi-Dahenan area ahmg Shanghuangqi-Wuhmggou faulted belt. The three geochemical anomaly series of Mo-W-Bi-Cu, Pb-Zn-Ag-Cd and Au-Hg-Agshow re,7 intimate relationship with regional structure, magmatic rocks and mctallogenie process. The results obtained by the authors effectively solve the problem of lhe difficuhy in determining element association and spatial distribution of the anomaly due to the superimposition of various elements and hence can provide reference for arrangement of geochemeial exploration and study of regional metallogenie regularity.