Large-scale erosion rates from in situ-produced cosmogenic nuclides in European river sediments
作者: M. SchallerF. von BlanckenburgN. HoviusP.W. Kubik
作者单位: 1Gruppe Isotopengeologie, Mineralogisch-Petrographisches Institut, Universität Bern, Erlachstrasse 9a, CH-3012 Bern, Switzerland
2Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ, UK
3Paul Scherrer Institut, c/o Institute of Particle Physics, ETH Hönggerberg, CH-8093 Zürich, Switzerland
刊名: Earth and Planetary Science Letters, 2001, Vol.188 (3), pp.441-458
来源数据库: Elsevier Journal
DOI: 10.1016/S0012-821X(01)00320-X
关键词: erosionBe-10cosmogenic elementsEurope
原始语种摘要: Abstract(#br)We have calculated long-term erosion rates of 20–100 mm/kyr from quartz-contained 10 Be in the bedload of middle European rivers for catchments ranging from 10 2 to 10 5 km 2 . These rates average over 10–40 kyr and agree broadly with rock uplift, incision and exhumation rates, historic soil erosion rates, and erosion rates calculated from the measured sediment loads of the same rivers. Moreover, our new erosion rate estimates correlate well with lithology and relief. However, in the Regen, Neckar, Loire, and Meuse catchments, cosmogenic nuclide-derived erosion rates are consistently 1.5–4 times greater than the equivalent rates derived from measured river loads. This may be due to the systematic under-representation of high-magnitude, low-frequency transport events in the...
全文获取路径: Elsevier  (合作)
影响因子:4.349 (2012)

  • erosion 侵蚀
  • cosmogenic 宇宙成因的
  • rates 地方税
  • sediment 沉积
  • European 欧洲人
  • derived 导生的
  • estimates 估值
  • cover 覆盖
  • representation 表现
  • anticipate 预期