| 航空高光谱遥感在花岗岩型锡矿勘查中的应用研究 |
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| 引用本文： | 郭帮杰,张杰林,武鼎,张川.航空高光谱遥感在花岗岩型锡矿勘查中的应用研究[J].铀矿地质,2017(4):241-245. |
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| 作者姓名： | 郭帮杰 张杰林 武鼎 张川 |
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| 作者单位： | 核工业北京地质研究院,遥感信息与图像分析技术国家级重点实验室,北京 100029 |
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| 摘 要： | 通过对喀木斯特及其周围地区锡矿进行勘查和剖析,总结了与其相关性较大的蚀变类型及蚀变矿物组合,利用航空高光谱数据(SASI-TASI)对该地区进行蚀变矿物填图;使用TASI热红外数据,通过SiO_2光谱特征经验公式推演和运用,计算SiO_2含量,进行高SiO_2区(带)提取。结果表明,高硅条带提取精度高,高硅条带主要分为硅化带和酸性岩脉(潜火山岩脉);硅质条带叠合水云母化、云英岩化蚀变带多发育锡矿等多金属矿化,为锡矿的遥感找矿标志。根据这些信息,圈定多个锡矿成矿预测区,部分区段发现了较好的锡矿化。
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| 关 键 词： | 高光谱遥感 东准噶尔 硅化带 锡矿 |
Application of Airborne Hyperspectral Remote Sensing in the Exploration of Granite Type Sn Deposit |
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| GUO Bangjie,ZHANG Jielin,WU Ding,ZHANG Chuan.Application of Airborne Hyperspectral Remote Sensing in the Exploration of Granite Type Sn Deposit[J].Uranium Geology,2017(4):241-245. |
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| Authors: | GUO Bangjie ZHANG Jielin WU Ding ZHANG Chuan |
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| Abstract: | In this paper,areas around Sn deposits in Kamust were investigated and analysed to find alteration minerals and their assemblage related to Sn minweralization.Hyperspectral shortwave (SASI)data were used to extract those alteration minerals information,and the thermal infrared data—TASI were used to distinguish the high SiO2 belts.The research result shew that high SiO2 belts are silicified zone and acid veins;Sn deposit are close related to fracture,hydromicazation and greisenization.Therefore,silicified belt with high hydromicazation, muscovite can be used as the exploration sign for Sn mineraliza-tion.Several prospective areas were delineated some of them were checked out with Sn mineralization. |
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| Keywords: | hyperspectral remote sensing east Junggar silicified zone Sn deposit |
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