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凤太矿集区基于MRAS证据权重法的金矿床找矿预测
- 作者：
- 刘芳|王雷|王飞
- 作者单位：
- 陕西凤县四方金矿有限责任公司|宝鸡西北有色七一七总队有限公司|宝鸡西北有色七一七总队有限公司
基金项目：
- 中国地质调查局地质调查项目（DD2016005213）
详细信息：
- 作者简介：
- 刘芳（1985—），男，陕西凤翔人，工程师，从事矿山地质工作；陕西省宝鸡市凤县坪坎镇，陕西凤县四方金矿有限责任公司，721705；E-mail:406230768@qq.com
- 通讯作者：
- E-mail:wl35cc@163.com，18292752200
- PDF下载
Gold deposit prospecting prediction based on MRAS evidence weight method in Fengtai high ore concentration area
- English Author：
- Shaanxi Fengxian Sifang Gold Mine Co.,Ltd.|Baoji Northwest Nonferrous Geological and Mining Group 717 Corps Limited|Baoji Northwest Nonferrous Geological and Mining Group 717 Corps Limited
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
凤太矿集区金成矿研究程度较高，为了进一步指导找矿，首次基于MRAS证据权重法对该矿集区金进行成矿预测。在充分收集地质、矿产、构造、物化遥资料的基础上，系统总结金成矿规律，建立了金矿床找矿标志，提取并构置了星红铺组、断裂、化探异常、遥感等12个预测变量作为证据因子。应用“三位一体”找矿理论，以凤太矿集区内的泥盆系地层出露范围作为金预测单元，进行后验概率计算，结合凤太矿集区金矿床的地质特征，圈定了5处找矿靶区。
关键词:
MRAS软件；证据权重法；成矿预测；凤太矿集区；金矿床
Abstract:
Fengtai high ore concentration area has a relatively high degree of research on the metallogenesis of gold deposits.In order to guide prospecting,for the first time,the metallogenic prediction of gold deposits in this area is carried out based on MRAS evidence weight method.On the basis of fully collecting various geological,mineral,structural,physical,chemical remote data,the study systematically summarized the metallogenic laws of gold deposits,constructed prospecting indicators of gold deposits in this area,extracted and constructed 12 predictive factors such as Xinghongpu Formation,faults,geochemical anomaly,remote sensing as evidence factors.The Trinity prospecting theory is applied,and the range of the Devonian strata exposed in Fengtai high ore concentration area is used as gold prediction unit.After calculating the posterior probability,5 prospecting target areas are delineated according to the geological characteristics of gold deposits in Fengtai high ore concentration area.
Keywords:
MRAS software;evidence weight method;mineralization prediction;Fengtai high ore concentration area;gold deposit