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L'érosion chimique et l'érosion mécanique à long terme du substrat granitique (Vendée,France) |
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| Authors: | Jean-Christophe Maurin Françoise Gilbert Michel Robert Carine Churlaud |
| Institution: | Centre littoral de géophysique, université de La Rochelle, av. Michel-Crépeau, 17042 La Rochelle, France |
| Abstract: | We calculate the chemical depletion fraction of the granitic bedrock by analysing the rock-soil enrichment of zirconium. In Vendée (France), chemical weathering rates account for 26% of the denudation rates. Such a chemical depletion fraction characterizes temperate regimes. It is three times lower than that of humid tropical regimes. To cite this article: J.-C. Maurin et al., C. R. Geoscience 337 (2005). |
| Keywords: | Érosion chimique Érosion mécanique Granite Zirconium France Chemical weathering Physical erosion Granite Zirconium France |
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