| TM图像用于干旱地区地质制图及其和找矿效果 |
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| 引用本文： | 阎积惠,陈怀亮,康慧,田晓东.TM图像用于干旱地区地质制图及其和找矿效果[J].国土资源遥感,1990,1(3):18-23. |
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| 作者姓名： | 阎积惠 陈怀亮 康慧 田晓东 |
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| 作者单位： | 冶金工业部天津地质研究院
(阎积惠，陈怀亮，康慧)，冶金工业部天津地质研究院(田晓东) |
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| 摘 要： | 甘肃北山属大陆性气候区,裸露着无古代和古生代地层。华力西中-晚期的构造岩浆活动强烈,并伴生有金、铜等多种矿产。根据矿物岩石的反射波谱和TM数据统计特征,选用TM7、TM5、TM4合成图像和TM5/TM4、TM5/TM7比值图像,不仅提供了丰富的构造信息,而且可以区分多种岩性和圈定有一定规模的热液蚀变岩石晕。用于1:50,000-1:500,000地质制图和圈定找矿靶区,取得了良好的经济效益和找矿效果。
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| 关 键 词： | 地质图 制图 干旱地区 TML图象 |
THE APPLICATION OF TM IMAGE TO GEOLOGICAL MAPPING AND MINERAL EXPLORATION IN ARID AREA |
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| Institution: | The Geological Researsh Institute In Tian Jing, The Ministry of Metallurgical InDustry |
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| Abstract: | Beishan Mountain Area is an area situated in Gansu Province with Pa-laeozoic and Proterozoic strata widely exposed. During Middle-Late variscian intense tecfonic-magmatic activity took place with Au-Gu mineral resources. Based on spectral properties and statistical results of TM data, TM7.TM5.TM4 images are picked up to make colour composite image and ratio image(5/7, 5/ 4) .Thetransformed image provide both structural informations and lithological information, especially information of hydrothermal alteration zones. These techniques are applied to geological mapping and locating prospecting targets. Results obtained are satisfying. |
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