| 了墩隆起西缘地浸砂岩铀矿成矿水动力条件的遥感处理与分析 |
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| 引用本文： | 刘蓉蓉,林子瑜.了墩隆起西缘地浸砂岩铀矿成矿水动力条件的遥感处理与分析[J].矿床地质,2008,27(3). |
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| 作者姓名： | 刘蓉蓉 林子瑜 |
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| 作者单位： | 1. 核工业北京地质研究院,北京,100029
2. 东华理工大学,江西,抚州,344000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 鉴于吐哈盆地地表植被覆盖稀少,故利用遥感技术提取亮度、绿度、湿度指数并加以合成,以反映盆地及其周边的反射蒸腾强度、植被覆盖程度和土壤湿度的信息,显示出盆地排泄构造的空间展布特征,进而分析成矿期间研究区的水动力环境,并划分出主要补给区(觉罗塔格山、天山山脉)和排泄区(鲁克沁附近及位于两者之间的径流区)。利用吐哈盆地现代三维地形图,结合盆地常规地质研究成果,反演成矿期间研究区及其周围地形高差特点,揭示出了墩隆起和西缘艾丁湖斜坡带的长期存在,以及它们影响了盆地的水动力系统,提供了南高北低长径流范围的成矿地形优势。
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| 关 键 词： | 地质学 地浸砂岩铀矿 水动力条件 遥感 了墩隆起 |
Remote sensing extraction and analysis of metallogenic hydrodynamic conditions of in-situ leachable sandstone-type uranium deposit on western margin ofLiaodun uplift |
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| LIU RongRong and LIN ZiYu.Remote sensing extraction and analysis of metallogenic hydrodynamic conditions of in-situ leachable sandstone-type uranium deposit on western margin ofLiaodun uplift[J].Mineral Deposits,2008,27(3). |
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| Authors: | LIU RongRong and LIN ZiYu |
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| Institution: | Beijing Research Institute of Uranium Geology and East China University of Technology |
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| Abstract: | In view of rare vegetation in Turpan-Hami basin, the authors utilized the remote sensing technique to extract and combine brightness, greenness and wetness indices. The results can reflect the transpiration intensity, vegetation degree and soil moisture as well as spatial distribution of drainage patterns. Through an analysis of the metallogenic hydrodynamic conditions of the study area, three districts were distinguished, i.e., supply district, runoff district and drainage district. Inversion of the relief features of the study area was conducted by using modern 3D chorography in combination with geological research results obtained from the basin, which revealed the long existence of the Liaodun uplift and the western marginal slope zone that has affected the hydrodynamic condition and provided the relief advantage of long runoff high in the south and low in the north. |
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| Keywords: | geology in-situ leachable sandstone-type uranium deposit hydrodynamic condition remote sensing Liaodun uplift |
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