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亮点1:别具一格的三大构造地形单元(1)北部山地为第三纪褶皱山系,属世界上最年轻、最高大的喜马拉雅山系。自北向南由一系列和它平行的山脉组成,呈阶梯状分布,海拔逐级下降到印度平原,成为崎岖而狭长的一带山区。北部山地的隘口处成为南北的重要通道,在水平距离l0多千米之内高差可达8000米之
Highlight 1: The unique three-dimensional topographic unit (1) The northern mountainous area is the third fold mountain system, and it is the youngest and tallest Himalayan mountain system in the world. From north to south, it consists of a series of mountains that run parallel to it and is distributed in a stepped manner. The elevation descends gradually to the Indian plains and becomes a rugged and narrow mountainous area. The cornices in the northern mountainous region become important passages between the north and the south, with a height difference of up to 8,000 meters within a horizontal distance of more than 10 kilometers.