ETM+图像锰矿化蚀变信息提取与找矿预测
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Release time:2023-03-16 Journal:国土资源遥感 Key Words:矿化蚀变; 找矿预测; 锰矿; 遥感; GIS Abstract:锰矿床浅层常含大量羟基、三价铁离子的现象使锰矿化异常在一定程度上可由羟基、铁染异常表征.由此提出采用波段比值、阈值分割、主成分分析等方法对ETM+遥感图像进行羟基异常和铁染异常蚀变信息提取,并利用GIS、结合已知矿点对提取的蚀变信息进行综合分析.以桂西-滇东南地区的锰矿为例,经过锰矿化蚀变信息提取与综合分析,验证了锰矿化与遥感蚀变信息的相关性以及所采用方法的有效性,为锰矿的找矿预测与评价提供了新的思路与方法; 利用提取的蚀变信息按成矿有利度在该区域划分了3类成矿有利区,并圈定出6个找矿远景区. Co-author:谢杨, Baoyi Zhang, Mao Xiancheng First Author:Jiqiu Deng Indexed by:Journal paper Document Type:J Volume:22 Issue:1 Page Number:102-105 Translation or Not:no Date of Publication:2011-03-01 -
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