滇黔桂成矿区金矿资源预测评价

滇黔桂地区是近年来金矿找矿的重点、热点地区之一,并不断取得找矿突破。在广泛收集地质、物探、化探、遥感、重砂等资料的基础上,基于GIS建立了本区地学空间数据库。通过对区内控矿地质条件和成矿规律的总结,建立了该区金矿找矿预测模型,选取了地质、化探、重砂、矿产等六大类57个标志信息,运用"矿床位置预测系统(DPIS)"的信息量预测法,获得了信息量异常,结合区内成矿地质条件,圈定了找矿远景区,并对找矿远景区进行了简要的评价。

Prediction and evaluation of gold resources in the Yunnan-Guizhou-Guangxi metallogenic area

The Yunnan-Guizhou-Guangxi metallogenic area is one of the most important areas for gold exploration.In recent years,gold prospecting has made some breakthrough in this area.Based on collecting data in such aspects as geology,geophysics,geochemistry,remote sensing and heavy minerals,the authors established a geological spatial database.Through a study of the ore-controlling geological conditions and a summarization of metallogenic regularity,a model of prospecting and prediction was formulated.On such a basis,the authors chose 57 kinds of indicative information covering 6 classes to delineate the information anomalies by using the information computation method of "Deposit Position Indicating System".Combined with geological,ore and geochemical data,the authors delineated and evaluated the prospecting area.