地质学报2012，Vol.86Issue(6)：1005-1019,15.
ArcGIS在东昆仑西段铁矿资源综合信息矿产预测中的应用——以沉积变质型铁矿为例
Application of ArcGIS in Prediction of Iron Ore Resources in the Western Segment of East Kunlun:A Case Study of Sedimentary Metamorphic-type Iron Deposits
摘要
Abstract
Combined with various prospecting approaches such as geology, geophysics, geochemistry and remote sensing etc. , a comprehensive model of regional information mineral prediction was established in this study using the multi information discovery, extraction, transformation and association, and comprehensive techniques. The model is used to conduct the quantitative assessment for mineral resources, being one of the important prospecting ways in the field of mineral resources exploration. Starting from the geological background and 7 known sedimentary metamorphic-type iron deposits (occurrences) in the study area, and combined with field check analysis, this paper established the metallogenic model and the favorable extraction model. The spatial database of the study area was built based on the ArcGIS platform. Multi-information was employed to assess ore-controlling factors and three prediction factors were determined, sedimentary strata, favorable geochemical anomalies ( Fe elements), and favorable geophysical anomaly (the original plane). Based on the spatial relationship of three layers of evidence and superimposing relation of known iron mineralization or prospects, the evidence weight model and weighted logistic regression model were used to evaluate metallogenic possibility. Remote sense alteration information was used to narrow the prospecting scope, and three prospect areas for sedimentary metamorphic-type iron deposits were delineated. Research results show that the western segment of the East Kunlun has a good prospecting future.关键词
沉积变质型铁矿/ArcGIS/证据权模型/加权logistic回归模型/东昆仑西段Key words
Sedimentary metamorphic-type iron deposits (occurrences)/ ArcGIS/ evidence weight model/ weighted logistic regression model/ the western segment of East Kunlun引用本文复制引用
刘艳宾,弓小平,陈斌,王哲,吴艳爽..ArcGIS在东昆仑西段铁矿资源综合信息矿产预测中的应用——以沉积变质型铁矿为例[J].地质学报,2012,86(6):1005-1019,15.基金项目
本文为中国地质调查局地质调查项目(编号1212010880202)、新疆大学天山学者特聘教授陈斌配套科研启动基金共同资助的成果. （编号1212010880202）
