云南巍山——永平矿集区流体地质填图的理论与实践  

Fluid-geological mapping in the Weishan-Yongping mineralization district,Yunnan-theory and practice

作　　者：王勇[1] 莫宣学[1] 董方浏[1] 毕先梅[1] 喻学惠[1] 杨伟光 曾普胜[1] 

机构地区：[1]中国地质大学地球科学与资源学院

出　　处：《中国地质》2003年第1期73-83,共11页Geology in China

基　　金：中国地质调查局国土资源大调查综合研究项目(20001020026003)资助。

摘　　要：流体地质填图是一种全新的地质调查及找矿方法。本次研究选择云南巍山—永平矿集区进行流体地质填图试验,研究了矿集区的控矿地质要素、各种主要的矿床(点)特征、成矿流体子系统及流域、流体的盐度与均一温度、流体的气液相成分、微量元素含量、稳定同位素特征及成矿流体的浓集中心。得到的流体地质图基本反映了本区成矿流体的性质与状态,反映了两个成矿流体子系统的基本特征,圈定了2个成矿流体子系统的流域范围及7个成矿流体浓集中心。这些浓集中心与已知矿化点分布、化探异常及有利的地质条件基本吻合,成为该区进一步找矿预测的重要依据之一。本项目的实践表明,流体地质填图不失为一种有效的找矿手段。Fluid-geological mapping is a new method employed for geological investigation and mineral exploration.The first test of fluid-geological mapping in China was carried out in the Weishan-Yongping copper-gold-polymetallic mineralization district,Yunnan.The authors studied mineralization-controlling geological factors,characteristics of various major deposits(occurrences),ore fluid subsystems and its drainage area,salinities,homogenization temperatures,gas-liquid phase compositions of fluids,trace element contents and stable isotope features of ore fluids,and concentration centers of ore fluid systems in the mineralization district.The fluid-geological map shows the nature and state of ore fluids in the area and the basic characteristics of two ore fluid subsystems.The drainage area and seven concentration centers of the two ore fluid subsystems have been delineated.The distribution of these concentration centers essentially coincides with the distribution of the known mineralization occurrences,geochemical anomalies and favorable geological conditions;therefore they are thought to be an important basis for mineral exploration.This study suggests that fluid-geological mapping is an effective means for mineral exploration.

关 键 词：流体地质填图 地质调查 成矿流体 流体包裹体 巍山县 永平县 云南 成矿预测 

分 类 号：P623[天文地球—地质矿产勘探]