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Tectonics, Erosion and Relief Evolution

Animators : Julien Charreau & Jérôme Lavé

Permanent investigators : Pierre-Henri Blard, Julien Charreau, Mary Ford, Christian France-Lanord, Jérôme Lavé, Raphaël Pik, Laurie Reisberg

PhD students : Florian Gallo (2010-2013), Sarah Medynski (2009-2012), Nicolas Meyer (2010-2013), Guillaume Morin (2010-2014), Nicolas Puchol (2009-2013), Dimitri Saint Carlier (2011-2015)


Through continental reliefs, the surface of our planet illustrates the on-going interactions between the geodynamic processes that lead to the construction of topographies and the erosion processes that tend to dig up these topographies and then erase them. Understanding the evolution of terrestrial landforms as resulting from endogenous, exogenous processes (climate) and feedback loops, represents in itself a major topic in geology and geomorphology. This research theme will aim to unite all of the CRPG’s efforts focusing on the processes that control the evolution of terrestrial landforms. Our research group covers a breadth of disciplines (geochemistry, geomorphology, and tectonics), which allows for an integrative view of many processes. The group also relies on many tools and methods which enable, on one hand, the quantification of the mechanisms involved along different time and space scales, and on the other hand, the dating constraints (cosmogenic isotopes, thermochronology and magnetostratigraphy). To better understand the mechanisms of relief creation, our scientific approach will be based on the study of lithospheric deformation from areas of rifting to region of convergence zones. We will study in parallel the various processes of physical erosion and weathering, as well as their coupling.

Dynamics of continental deformation : from rifting to collision
Mechanisms of physical and chemical erosion and sediment transport
Tectonic/topography/erosion/climate couplings






Recent publications

2017

Galy, A., Y. Yang, and X. Fang. "Sequestration of carbon as carbonate in the critical zone: insights from the Himalayas and Tibetan Plateau." Acta Geochimica (2017).
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Lupker, M., J. Lavé, C. France-Lanord, M. Christl, D. Bourlès, J. Carcaillet, C. Maden, R. Wieler, M. Rahman, D. Bezbaruah et al. "10Be systematics in the Tsangpo-Brahmaputra catchment : the cosmogenic nuclide legacy of the eastern Himalayan syntaxis." Earth Surface Dynamics 5 (2017): 429–449.
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Puchol, N., P. H. Blard, R. Pik, B. Tibari, and J. Lavé. "Variability of magmatic and cosmogenic 3 He in Ethiopian river sands of detrital pyroxenes: Impact on denudation rate determinations." Chemical Geology 448 (2017): 13–25.
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Yang, Y., A. Galy, X. Fang, R. Yang, and W. Zhang. "Eolian dust forcing of river chemistry on the northeastern Tibetan Plateau since 8Ma." Earth and Planetary Science Letters 464 (2017): 200–210.
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Yang, Y., R. Yang, X. Li, W. Han, J. Zan, X. Fang, E. Appel, A. Galy, F. Wu, S. Yang et al. "Glacial-interglacial climate change on the northeastern Tibetan Plateau over the last 600 kyr." Palaeogeography, Palaeoclimatology, Palaeoecology 476 (2017): 181–191.
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2016

Bosia, C., F. Chabaux, E. Pelt, C. France-Lanord, G. Morin, J. Lavé, and P. Stille. "U–Th–Ra variations in Himalayan river sediments (Gandak river, India): Weathering fractionation and/or grain-size sorting?" Geochimica et Cosmochimica Acta 193 (2016): 176–196.
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Bot, A., C. Geoffroy, C. Authemayou, H. Bellon, D. Grandorge, and R. Pik. "Miocene detachment faulting predating EPR propagation, Baja California Sur." Tectonics 35 (2016): 1153–1176.
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Boutoux, A., N. Bellahsen, U. Nanni, R. Pik, A. Verlaguet, Y. Rolland, and O. Lacombe. "Thermal and structural evolution of the external Western Alps: insights from (U-Th-Sm)/He thermochronology and RSCM thermometry in the Aiguilles Rouges/Mont Blanc massifs." Tectonophysics 686 (2016): 109–123.
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Cassel, M., H. Piégay, and J. Lavé. "Effects of transport and insertion of radio frequency identification (RFID) transponders on resistance and shape of natural and synthetic pebbles: applications for riverine and coastal bedload tracking." Earth Surface and Processes and Landforms (2016).
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Dick, H. J. B., C. J. MacLeod, P. Blum, N. Abe, D. K. Blackman, J. A. Bowles, M. J. Cheadle, K. Cho, J. Ciazela, J. R. Deans et al. "Expedition 360 Preliminary Report: Southwest Indian Ridge lower crust and Moho. Internat. Ocean Discovery Program." Expedition 360 Preliminary Report (2016).
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Emberson, R., N. Hovius, A. Galy, and O. Marc. "Oxidation of sulfides and rapid weathering in recent landslides." Earth Surface Dynamics 4 (2016): 727–742.
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Ford, M., R. Hemelsdaël, M. Mancini, and N. Palyvos. "Rift migration and lateral propagation: evolution of normal faults and sediment-routing systems of the western Corinth rift (Greece)." Geological Society of London Special Publication 439 (2016).
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Ford, M., L. Hemmer, A. Vacherat, K. Gallagher, and F. Chrsitophoul. "Retro-wedge foreland basin evolution along the ECORS line, eastern Pyrenees, France." Journal of the Geological Society of London 173 (2016): 419–437.
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France-Lanord, C., V. Spiess, A. Klaus, T. Schwenk, and and the Expedition 354 Scientists. "Bengal Fan Expedition 354 of the riserless drilling platform Singapore to Colombo, Sri Lanka." In Proceedings of the International Ocean Discovery Program. Vol. 354., 2016.
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Hossler, T., L. Bollinger, S. N. Sapkota, J. Lavé, R. M. Gupta, and T. P. Kandel. "Surface ruptures of large Himalayan earthquakes in Western Nepal: Evidence along a reactivated strand of the Main Boundary Thrust." Earth and Planetary Science Letters 434 (2016): 187–196.
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