| 摘要: |
| 采用吉兰泰盐湖地区TM数据进行标准假彩色图像处理,对研究区构造、地貌、水系分布等地质特征进行解译和分析,探讨了吉兰泰盐湖的形成演化过程和盐湖形成的水体来源。结果表明,研究区贺兰山隆起带、吉兰泰沉降带、巴音乌拉山隆起带所组成的北北东向右行多字型斜列的基本构造格局,不仅控制着吉兰泰盐湖古湖盆的演化,而且控制着吉兰泰盐湖形成的水体来源。 |
| 关键词: 吉兰泰盐湖,地质特征,遥感解译 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院湖沼专项特别支持项目,ZKHZ-04号 |
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| REMOTE SENSING INTERPRETATION OF REGIONAL GEOLOGICAL CHARACTERISTICS AND THE FORMATION AND EVOLUTION OF JILANTAI SALT LAKE |
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LIU Xing-Qi1, GE Wen-Sheng2
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1.Nanjing Institute of Geography and Limnology, The Chinese Academy of Sciences;2.Geoscience University of China
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| Abstract: |
| Based upon the processing of LANDSAT Thematic Mapper(TM) images of Jilantai Salt Lake,the authors analyzed and interpreted the characteristics of the tectonics, geomorphology and water system of the area. Further, the formation and evolution of Jilantai Salt Lake and its water source were discussed. The results indicate that the NNS dextral diagonal, formed by the Helan Mountain Ridge, the Jilantai Depression and the Bayinwula Mountain Ridge, represents a basic tectonic feature of the region. The geomorphic system consists of mountainous regions of bass rock, platforms, mountain pediments, sand areas and basins. The water masses originated form the mountainous regions of base rock or mountain pediments all run into the basins though the platforms, and sand areas and many of the lakes were formed in the depression or the various sub-depressions. The upheaval of Bayinwula Mountain after Helan Mountain resulted in the formation of the Jilantai Depression. The water masses originated from Helan and Bayinwula Mountains are transferred almost completely into the depression, and the pediment of the Jilantai Salt Lake was formed. The relic of the dried rivers formed by
the waters indicates that the climate of the region became progressively drier, and the Lake became saltier. Our results provide some scientific information for further studies of the water resources of the region. |
| Key words: Geological characteristics, Remotely sensed images, Interpretation, Jilantai Salt Lake |
