摘要: |
根据1989-1990年两个夏季对新疆阿尔泰山哈纳斯河流域冰川湖泊的野外调查并结合室内分析,对该流域冰川湖泊及其沉积类型进行了分类。按其成因冰川湖泊可分为:冰蚀湖、冰川阻塞湖、冰碴湖、冰川热融湖、以及复合成因的冰川湖泊;按补给类型,冰川湖泊还可以分为冰水湖和非冰水湖泊;冰川湖泊除了受到一般湖泊所具有的波浪作用、地表径流作用、块体运动、坡面水流作用以外,还存在冻胀作用、冰川作用和热力作用等。主要沉积类型有:湖滩沉积、浅水沉积、静水沉积和冰川三角洲沉积。 |
关键词: 冰湖分类 沉积类型 阿尔泰山 |
DOI: |
分类号: |
基金项目:国家自然科学基金资助,49171013号 |
附件 |
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CLASSIFICATION AND SEDIMENTARY TYPES OF GLACIAL LAKES IN THE HALASI RIVER CATCHMENT, THE ALTAY MOUNTAINS, XINJIANG |
Yi Chaolu, Cui Zhijiu
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Department of Geography, Beijing University Beijing 100871
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Abstract: |
On the basis of 1989 - 1990 field and indoor investigations, glacial lakes are classified and their sedimentary types in the Halasi River catchment of the Altay Mountains, Xinjiang, are discussed. The genetical types of glacial lakes are as follow: glacial-eroded lake, glacial-dammed lake, moraine-dammed lake, glacial thaw lake, and composite lake. Glaciogenetic lakes can also be classified, according to the characteristics of water supply, into glaciofluvial lake and non-glaciofluvial lake. Frost heaving, glaciation and thermal action are at work on glacial lakes, besides wave action, influent, mass movement and slope washing which exist in normal lakes. The various types of glaciolacustrine deposits are as follow: beach deposits, shallow-water deposits, still-water deposits and glacio-fluvial delta deposits. |
Key words: Classification of glacial lakes, Sedimentary types, Altay Mountains |