Prospecting Prediction by Geochemical Information Mining in Yimen Copper Area, Yunnan
详细信息
- 责任者：LiuHongtao (Institute of Geological Geophysical and Geochemical Exploration ; Yunnan Non-ferrous Metals Geological Bureau ; Kunming 650216 ; China) ; Chen Sanming
- 刊名：Journal of Guilin University of Technology
- 出版年：2011
- 卷期：31(3)
- 关键词：铜矿 ; copper ores ; 地球化学勘查 ; geochemical exploration ; 云南 ; Yunnan Province
- 页码：p.328-338
- 图表：6 illus., 6 tables, 21 refs.
- 分类号：1500
- 出版序号：453
- issnNo：ISSN1674-9057
- isbnNo：CN45-1375/N
摘要
Taking Yunnan Yimen copper ore district and its peripheral as the study area,12 microelements in different ages strata,geochemical distribution characteristics of microelements in stream sediments,and the relation between geochemical indicators and metallogenesis are analyzed.Based on the geochemical mining theory,the principal component factor of microelements with Pan-Kriging model and three-dimensional visualization analysis of geochemical anomalies,GIS-based multi-information forecasts and other methods are used.The study area based on the GIS comprehensive geochemical prospecting model is established.Geochemical anomaly weak information enhancement and composite indicator based on geochemical metallogenic prediction are carried out.Both prospective areas of 9 exploration and 17 prospecting targets are delineated with good exploration results.