结合成矿要素的遥感蚀变信息提取技术研究
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摘要
在分析宁夏省中卫地区铀成矿要素的基础上,提出了结合研究区成矿要素的ETM遥感蚀变提取改进技术,对非铀成矿有利地层进行了掩膜处理,减少了非相关地层中岩石矿物对信息提取的影响,野外查证后认为采用改进后的方法可使蚀变信息提取的精度更高,并在中卫地区发现了多条铀矿异常线索。
Based on the analysis of uranium mineralization essential factors in Zhongwei area of Ningxia,this paper put forward an improved method of alteration extraction from ETM data with mineralization essential factors.The noise impact on alteration extraction was reduced by masking the range of non target strata of uranium mineralization.It's proved through field verification that the method can improve the alteration extracting accuracy,and several anomaly uranium were found in Zhongwei area with the clue of alteration mineral extracted by improved remote sensing method.
Based on the analysis of uranium mineralization essential factors in Zhongwei area of Ningxia,this paper put forward an improved method of alteration extraction from ETM data with mineralization essential factors.The noise impact on alteration extraction was reduced by masking the range of non target strata of uranium mineralization.It's proved through field verification that the method can improve the alteration extracting accuracy,and several anomaly uranium were found in Zhongwei area with the clue of alteration mineral extracted by improved remote sensing method.
引文
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[7]姬海军,何大鹏,何佳军,等.甘肃省武腾盆地及其周缘铀矿远景调查[R].陕西咸阳:核工业203研究所,2014.
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[9]A.P.Crosta,C.R.De Souza Filho,F.Azevedo,et al.Targeting key alteration minerals in epithermal deposits in Patagonia,Argentina,using ASTER imagery and principal component analysis[J].International Journal of Remote Sensing,2003,24(21):4233-4240.
[2]张玉君,杨建民,陈薇.ETM(TM)蚀变遥感异常提取方法研究与应用——地质依据和波谱前提[J].国土资源遥感,2002,54(4):30-36.
[3]王晓鹏,谢志清,伍跃中.ETM图像数据中矿化蚀变信息的提取——以西昆仑塔什库尔干地区为例[J].地质与资源,2002,11(2):119-122.
[4]吕凤军,邢立新,范继璋,等.遥感蚀变信息提取应用研究[J].新疆地质,2004,12(4):435-437.
[5]王润生.遥感地质技术发展的战略思考[J].国土资源遥感,2008,(1):1-12.
[6]叶发旺.ASTER数据与ETM数据蚀变信息提取的对比研究——以巴什布拉克铀矿区油气还原蚀变分析为例[J].地球信息科学学报,2009,(3):274-281.
[7]姬海军,何大鹏,何佳军,等.甘肃省武腾盆地及其周缘铀矿远景调查[R].陕西咸阳:核工业203研究所,2014.
[8]Clark R N.High Spectral Resolution Reflectance Spectroscopy of Minerals[J].Journal of Geophysical Research,1990,8(95):12653-12680.
[9]A.P.Crosta,C.R.De Souza Filho,F.Azevedo,et al.Targeting key alteration minerals in epithermal deposits in Patagonia,Argentina,using ASTER imagery and principal component analysis[J].International Journal of Remote Sensing,2003,24(21):4233-4240.