摘要
综合分析赣东北德兴矿集区铜、金矿床成矿地质条件,提取构造、岩浆岩、遥感异常、Au、Cu、Ag水系沉积物异常等12种成矿有利的证据因子,同时引入断裂密度证据层,采取加拿大数学地质学家Agterberg F P提出的证据权重法,基于MAPGIS平台和MRAS地质统计分析方法,对赣东北德兴矿集区铜、金矿成矿进行了定量预测和评价,按照证据权后验概率将该区成矿条件划分为3个等级,共圈定7个成矿远景区。同时指出万村—张家、怀玉山—灵山、横峰—黄山3个成矿远景区,目前找矿尚未有重大突破,是今后找矿勘查的重点。
On the base of summarizing and analyzing the ore-forming regularity of copper and gold deposits in the ore-centralization area of northeastern Jiangxi province,this research selects twelves kinds of ore-controlling evidence,such as structure,magmatic rock ,remote sensing, Au, Ag,Cu dement stream sediment anomaly ,adopts weights of evidence method created by Agterberg F P to predicate ore-forming anomalies and evaluate copper and gold mineral resources of the noltheastem Jiangxi province. The quantitative prediction and evaluation of mineral resources in this area are achieved by using the software of MAPGIS and MRAS. According to the value of posterior probability,the Cu,Au metallogenic prospecting area are classified into three grades. Seven ore potential areas are delineated in the ore-centralization area through this study,especially Wancun-Zhangjia,Huaiyushan-Lingshan,Hengfeng- Huangshan three prospecting areas will be the focus of next prospecting.
出处
《黄金科学技术》
2009年第6期29-33,共5页
Gold Science and Technology
基金
国家科技支撑项目"德兴-永平大型铜金矿集区深
边部找矿预测与勘查技术研究"(编号:2006BAB01B05)
"三江"中南段铜
铅锌
金
多金属矿床综合勘查评价技术研究"(编号:2006BAB01A07)联合资助
关键词
证据权法
成矿预测
MRAS
GIS
赣东北
Weight of evidences method
Metallogenic prediction
MRAS
GIS
Northeastern Jiangxi province
