基于MAPGIS地质异常提取及找矿有利地段圈定  

Extraction of geological anomaly and delineation of preferable ore-finding area based on MAPGIS

作　　者：孙祥[1] 赵忠英[1] 杨子荣[1] 

机构地区：[1]辽宁工程技术大学资源与环境工程学院,辽宁阜新123000

出　　处：《辽宁工程技术大学学报（自然科学版）》2007年第6期837-840,共4页Journal of Liaoning Technical University (Natural Science)

基　　金：辽宁省国土资源厅基金资助项目(KJ-2005-001)

摘　　要：为了解决成矿预测中地质异常提取和找矿有利地段圈定的问题,利用GIS技术,研究了基于MAPGIS的地质异常提取和找矿有利地段圈定的方法。结果表明:相对熵可以反映地层及岩浆岩异常,断裂优益度及中心对称度可以反映断裂异常,找矿有利度可以反映找矿有利地段的级别,并提出了基于MAPGIS圈定找矿有利地段的模型。该成果对成矿预测具有一定的参考价值和指导意义。In order to solve the problem in extracting the geological anomaly and delineating the preferable ore-finding area, the method is studied based on GIS. The relative entropy can represent the anomaly of strata and magmatic rocks, the degree of rupture superior can represent the anomaly of rupture, and the ore-finding favorability can represent the anomaly of preferable ore-finding area. The model of delineating the preferable ore-finding area is proposed based on MAPGIS, and the achievement has the certain reference value and the instruction significance to ore prognosis.

关 键 词：MAPGIS地质异常 相对熵 断裂优益度 断裂中心对称度 找矿有利度 找矿有利地段 

分 类 号：P612[天文地球—矿床学]