| 遥感蚀变信息强弱与粘土矿物含量相关性研究 |
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| 引用本文： | 曹会,曹丽华,邢立新.遥感蚀变信息强弱与粘土矿物含量相关性研究[J].中国西部科技,2014(9):18-20. |
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| 作者姓名： | 曹会 曹丽华 邢立新 |
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| 作者单位： | 武警黄金第一支队;吉林省地质调查院;吉林大学地球探测科学与技术学院; |
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| 摘 要： | 基于多光谱遥感影像提取蚀变信息的方法较多,常用的方法有比值法、主成分分析法、光谱角法和混合像元分解方法等,本文基于主成分分析法和比值法对研究区进行铝羟基和镁羟基蚀变信息提取,并利用实测的土壤中氧化物和元素含量定量计算得到的粘土矿物含量,分析其含量多少与蚀变强弱之间关系,研究发现,采样点蚀变粘土矿物含量与遥感蚀变信息之间有一定关系。
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| 关 键 词： | 蚀变信息提取 主成分分析 比值法 粘土矿物含量 |
Correlation Study between the Strength of Remote Sensing Alteration Information and Clay Mineral Content |
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| Institution: | CAO Hui, CAO Li-hua, XING Li-xin (l.Gold Geological Party, NO.I of CAPE Mu Danjiang Helongjiang 157021, China;2.Geological survey institute of Jilin Province, Changchun Jilin 130021, China; 3. College of GeoExploration Science and Technology, Jilin Universi .ty, Changchun Jilin 130026, China) |
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| Abstract: | There are lots of methods for extraction of alteration information based on multispectral remote sensing image, such as ratio analysis, principal component analysis, spectral angel, decomposition of mixed pixels and so on. The principal component analysis and ratio analysis were employed to extract the alteration information of magnesium hydroxy and aluminum hydroxyl in the research area. By using the measured oxides and elements content in the soil, we calculated the clay mineral content quantitatively, and analyzed the relationship between the content and the strength of alteration. The study found that a certain relationship between altered clay mineral content of the sample point and remote sensing alteration information. |
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| Keywords: | Alteration Information Principal Component Analysis Ratio Analysis Clay Minerals |
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