首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Rate of Glacial Valley Deepening During the Late Quaternary in Assynt,Scotland
Authors:N J Hebdon  T C Atkinson  T J Lawson  I R Young
Abstract:A dated landscape history of the Allt nan Uamh valley in the Assynt area is constructed, spanning the last 300 ka, using geomorphological analysis, U-series speleothem dating, and existing cave surveys. The mean rate of valley deepening is estimated to lie between 47 and 68 m per glacial/interglacial cycle of 100 ka. This, combined with an estimated duration of glaciation, implies glacial erosion rates of about 2 mm a−1, in agreement with modern process measurements. © 1997 by John Wiley & Sons, Ltd.
Keywords:Quaternary  caves  denudation  U-series dating  Assynt area
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号