The Applicationof Weights of Evidence in Morpas System to Medium-Large Scale Metallogenic Prodiction

详细信息   

• 责任者：Chen Chong (Faculty of Earth Resource ; China University of Geosciences ; Wuhan 430074 ; China) ; Tan Jun
• 刊名：Geophysical and Geochemical Exploration
• 出版年：2012
• 卷期：36(5)
• 关键词：成矿预测 ; metallogenic prediction ; 证据权重法 ; evidence weight methods ; 内蒙古 ; Inner Mongolia
• 页码：p.827-833
• 图表：3 illus., 3 tables, 15 refs.
• 分类号：1900
• issnNo：ISSN1000-8918
• isbnNo：CN11-1906/P

摘要

In this paper, the authors selected a certain medium-large scale work area and a small low working level area in Alxa region. According to geological features in combination with spatial position analysis, appropriate evidence factors were selected. By linking each evidence factor with NE grid size of 80 ~ 40 m, the authors analyzed and calculated spatial relationship between the evidence and Cu high points on the basis of weight of evidence modeling in MORPAS system. Spatial distribution of favorable ore-prospecting areas is expressed intuitively through graphics. Two trenchs intersect the ore body, suggesting that the model is also suitable for the medium-large scale and small low working level area metallogenic prediction.