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遥感技术与应用  2012, Vol. 27 Issue (3): 380-386    DOI: 10.11873/j.issn.1004-0323.2012.3.380
模型与反演     
埃塞俄比亚西部岩浆熔离型铁矿遥感找矿模型
代晶晶1,2
(1.国土资源部成矿作用与资源评价重点实验室中国地质科学院矿产资源研究所,北京 100037;2.中国地质大学(北京)地球科学与资源学院,北京 100083)
Remote Sensing Model for Magma Tic Liquation Iron Deposit Prediction in Western Ethiopia
Dai Jingjing1,2
(1.MLR Key Laboratory of Metallogeny and Mineral Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 100037,China;2.Faculty of Geosciences and Resources,China University of Geosciences,Beijing 100083,China)
 全文: PDF(8083 KB)  
摘要:

为解决在地质资料匮乏的情况下发挥多源遥感数据优势开展地质找矿研究这一科学问题,以非洲埃塞俄比亚西部研究区为例,选取ASTER及ALOS PALSAR单极化雷达数据为数据源,针对研究区重点类型铁矿——岩浆熔离型铁矿建立了其遥感找矿模型,提取与成矿作用相关的蚀变、构造、岩体信息。研究基于ASTER遥感数据,通过比值、主成分方法进行蚀变信息提取研究,并基于ASTER及ALOS  PALSAR单极化雷达融合数据进行控矿构造及赋矿岩体信息提取研究。最终通过综合分析,基于ArcGIS平台圈定了3处遥感找矿靶区。研究结果与1∶25万地球化学数据对比,具有很高一致性,表明遥感找矿模型能够快速、准确地进行找矿靶区预测。

关键词: ASTERALOS PALSAR遥感找矿模型岩浆熔离型铁矿    
Abstract:

Multi-source remote sensing data was used for mineral resource prediction study in little or non geological data. Western Ethiopia was the study area,ASTER and ALOS PALSAR single polar data were adopted as the remote sensing data source;magma tic liquation iron deposit was chosen as the typical mineral deposit.Firstly,remote sensing model was built for magma tic liquation iron deposit prediction,which included alteration,structure and lithology information related to deposits.Then,alteration information was extracted from ASTER data using band ratio and principal component analysis methods,and structure and lithology study was conducted by the fusion of ASTER and ALOS PALSAR single polar data.Finally,based on ArcGIS software,through the synthetical study of the remote sensing model,three promising mineral areas were predicted. For testing the accuracy of the model result was compared with the geochemical data in 1∶250 000 scale of the study area,and showed that were consistent. This study illustrated that remote sensing model provided a quick and accurate way for mineral resource prediction.

Key words: ASTER    ALOS PALSAR    Remote sensing model for mineral resource prediction    Magma tic liquation iron deposit
收稿日期: 2011-09-29 出版日期: 2013-01-23
:  TP 79  
基金资助:

国家863计划项目,中国地质调查工作项目(1212010818097),中央级公益性科研院所基本科研业务费专项基金资助项目(K1011)联合资助。

作者简介: 代晶晶(1982-),女,河南新乡人,博士研究生,助研,主要从事地质遥感研究。Email:daijingjing863@sina.com。
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引用本文:

代晶晶. 埃塞俄比亚西部岩浆熔离型铁矿遥感找矿模型[J]. 遥感技术与应用, 2012, 27(3): 380-386.

Dai Jingjing. Remote Sensing Model for Magma Tic Liquation Iron Deposit Prediction in Western Ethiopia. Remote Sensing Technology and Application, 2012, 27(3): 380-386.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2012.3.380        http://www.rsta.ac.cn/CN/Y2012/V27/I3/380

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