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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

2015

France-Lanord, C., V. Spiess, A. Klaus, and and the Expedition 354 Scientits. "Bengal Fan : Neogene and late Paleogene record of Himalayan orogeny and climate: a transect across the Middle Bengal Fan." International Ocean Discovery Program Expedition 354 Preliminary Report (2015).
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Martin, L. C. P., P. H. Blard, J. Lavé, R. Braucher, M. Lupker, T. Condom, J. Charreau, V. Mariotti, ASTER Team., and E. Davy. "In situ cosmogenic 10 Be production rate in the High Tropical Andes." Quaternary Geochronology 30 (2015): 54–68.
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Pieter Vermeesch, P., G. Balco, P. H. Blard, T. J. Dunai, F. Kober, S. Niedermann, D. L. Shuster, S. Strasky, F. M. Stuart, R. Wieler et al. "Interlaboratory comparison of cosmogenic 21 Ne in quartz." Quaternary Geochronology 26 (2015): 20–28.
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Sparkes, R. B., I. T. Lin, N. Hovius, A. Galy, J. T. Liu, X. Xu, and R. Yang. "Redistribution of multi-phase particulate organic carbon in a marine shelf and canyon system during an exceptional river flood: Effects of Typhoon Morakot on the Gaoping River–Canyon system." Marine Geology 363, no. 05 (2015): 191–201.
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2014

Conin, M., S. Bourlange, P. Henry, A. Boiselet, and P. Gaillot. "Distribution of resistive and conductive structures in Nankai accretionary wedge reveals contrasting stress paths." Tectonophysics 611 (2014): 181–191.
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Girault, F., L. Bollinger, M. Bhattarai, B. P. Koirala, C. France-Lanord, S. Rajaure, J. Gaillardet, M. Fort, S. N. Sapkota, and F. Perrier. "Large-scale organization of carbon dioxide discharge in the Nepal Himalayas." Geophysical Research Letters (2014).
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Poujol, A., J. F. Ritz, A. Tahayt, P. Vernant, M. Condomines, P. H. Blard, J. Billant, L. Vacher, B. Tibari, L. Hni et al. "Active tectonics of the Northern Rif (Morocco) from geomorphic and geochronological data." Journal of Geodynamics 77 (2014): 70–88.
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Puchol, N., J. Lavé, M. Lupker, P. H. Blard, F. Gallo, C. France-Lanord, and ASTER Team. "Grain-size dependent concentration of cosmogenic 10 Be and erosion dynamics in a landslide-dominated Himalayan watershed." Geomorphology 224 (2014): 55–68.
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Salles, L., M. Ford, and P. Joseph. "Characteristics of axially-sourced turbidite sedimentation on an active wedge-top basin (Annot Sandstone, SE France)." Marine and petroleum Geology (2014).
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Wack, M. R., S. A. Gilder, E. A. Macaulay, E. R. Sobel, J. Charreau, and A. Mikolaichuk. "Cenozoic magnetostratigraphy and magnetic properties of the southern Issyk-Kul basin, Kyrgyzstan." Tectonophysics 629 (2014): 14–26.
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Wilson, A., and J. Lavé. "Convergent evolution of abrading flow obstacles: Insights from analogue modelling of fluvial bedrock abrasion by coarse bedload." Geomorphology 208 (2014): 207–224.
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2013

Bellahsen, N., S. Leroy, J. Autin, P. Razin, E. d'Acremont, H. Sloan, R. Pik, A. Ahmed, and K. Khanbari. "Pre-existing oblique transfer zones and transfer/transform relationships in continental margins: New insights from the southeastern Gulf of Aden, Socotra Island, Yemen." Tectonophysics 607 (2013): 32–50.
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Blard, P. H., R. Braucher, J. Lavé, and D. Bourlès. "Cosmogenic 10Be production rate calibrated against 3He in the high Tropical Andes (3800–4900m, 20–22◦ S)." Earth and Planetary Science Letters 382 (2013): 140–149.
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Blard, P. H., J. Lavé, F. Sylvestre, C. J. Placzek, C. Claude, V. Galy, T. Condom, and B. Tibari. "Cosmogenic 3He production rate in the high tropical Andes (3800m,20◦S): Implications for the local last glacial maximum." Earth and Planetary Science Letters 377-378 (2013): 260–275.
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Durand-Riard, P., C. Guzofski, G. Caumon, and M. O. Titeux. "Handing natural complexity in three-dimensional geochanical restoration, with application to the recent evolution of the outer fold and thrust belt, deep-water Niger Delta." AAPG Bulletin 97, no. 1 (2013): 87–102.
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