Modelling the Middle Pleistocene uplift in the Ardennes-Rhenish Massif: Thermo-mechanical weakening under the Eifel?

Daniel Garcia-Castellanos*, Sierd Cloetingh, Ronald Van Balen

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Middle Pleistocene uplift in the Eifel has been interpreted as the isostatic response of the lithosphere to a deep buoyant hot body. The spatial and temporal distribution of the uplift in the Ardennes-Rhenish Massif Region has recently been constrained by new data of river incision that have been compiled in this work. The uplift distribution can be reproduced using a thin elastic plate model and assuming that the uplift is created by a deep buoyant load, the distribution of which coincides with the weakening. Models incorporating a lithospheric weakening provide a better fit of the observed uplift than models with homogeneous flexural rigidity. These results are confirmed by numerical experiments using a depth-dependent elasto-plastic plate rheology, linking the flexural model with the thermo-mechanical structure of the lithosphere.

Original languageEnglish
Pages (from-to)39-52
Number of pages14
JournalGlobal and Planetary Change
Volume27
Issue number1-4
DOIs
Publication statusPublished - 31 Dec 2000

Keywords

  • Ardennes-Rhenish Massif
  • Eifel
  • Thermo-mechanical weakening

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