Brozović N, Burbank DW, Meigs AJ
Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, USA.
Science. 1997 Apr 25;276(5312):571-4. doi: 10.1126/science.276.5312.571.
The interaction between tectonism and erosion produces rugged landscapes in actively deforming regions. In the northwestern Himalaya, the form of the landscape was found to be largely independent of exhumation rates, but regional trends in mean and modal elevations, hypsometry (frequency distribution of altitude), and slope distributions were correlated with the extent of glaciation. These observations imply that in mountain belts that intersect the snowline, glacial and periglacial processes place an upper limit on altitude, relief, and the development of topography irrespective of the rate of tectonic processes operating.
构造运动与侵蚀作用之间的相互作用在活跃变形地区形成了崎岖的地貌。在喜马拉雅山脉西北部,人们发现地貌形态在很大程度上与剥蚀速率无关,但平均海拔和模态海拔的区域趋势、地势起伏曲线(海拔频率分布)以及坡度分布与冰川作用范围相关。这些观察结果表明,在与雪线相交的山系中,无论构造作用的速率如何,冰川和冰缘作用都会对海拔、地形起伏和地形发育设置上限。