证据权法在四川宁南地区铅锌成矿预测中的应用  

Applying weight of evidence to perdict Pb-Zn potentiality in Ningnan region,Sichuan

作　　者：严冰[1] 阳正熙[1] 王小春[2] 

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [2]四川省冶金地质勘察院,四川成都610059

出　　处：《世界地质》2005年第3期253-258,共6页World Geology

摘　　要：在分析四川宁南地区层控铅锌矿床成矿特征的基础上,通过Arc-WofE系统提取、建立了地质、化探和铅锌矿床(点)等11个应用图层数据库。采用证据权法对该区进行成矿模拟预测,划分出5个铅锌成矿区。研究表明,证据权法用于成矿预测具有方法简单、预测结果可靠性较高等特点,与Arc-WofE系统结合后,可使模拟过程更加简便、准确,模拟结果更加客观。Based on the analysis of the metallogenetic characteristics of the strata yielding Pb-Zn deposits in Ningnan region, 11 database layers,e, g. geology databases, geochemistry and ore deposits （occurrences）databases are abstracted and constructed by the Arc-WofE system. Five potential areas for Pb-Zn deposits are delineated, with evidence weight modeling. It shows that the evidence weight model is easy to realize and higher in reliablilily for prediction. Integrating the Arc-WofE system, the efficiency and accuracy of modeling predication are obviously improved.

关 键 词：证据权法 铅锌矿床 成矿预测 

分 类 号：P612[天文地球—矿床学]