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The National Cosmogenic Nuclides Laboratory (LN2C in french) is a structure dedicated to the use of cosmogenic nuclides in Earth Sciences, notably via the preparation of samples and the measurements of cosmogenic isotopes. Its mission is to provide an effective access to this methodology to the French scientific community, for research projects in the following fields: natural hazards and risks, linked for example to earthquakes or landslides past climate change, for example with the dating of markers associated to glaciations landscape dynamics and the determination of current and past denudation rates dating of archaeological sites and objects. investigation of the magnetic field evolution over time The LN2C consists of a set of laboratories allowing the purification and preparation of different types of sample (rocks, soils, water, etc.) as well as the measurement of different isotopic ratios (10Be/9Be, 26Al/27Al, 36Cl/35Cl, ...) by the national 5MV AMS (Accelerator Mass Spectrometer) facility ASTER. The LN2C regroups faculty members, research scientists, engineers and technicians from Aix Marseille University, CNRS and IRD. The LN2C was founded by Didier Bourlès (AMU Professor), and is hosted by CEREGE on the Technopôle de l'Arbois domain in Aix-en-Provence since 2006.

The installation of the ASTER instrument was possible due to an initial investment by the Bouches du Rhône General Council, the European Regional Development Fund (FEDER), CNRS, IRD and the Provence-Alpes-Côte d'Azur Region council. The LN2C is a technological platform of Aix-Marseille University and is part of the REGEF network. Its operation is supported by a recurring endowment from CNRS and IRD. The LN2C benefited from the Investments for the Future Program via EQUIPEX ASTER-CEREGE, which notably enabled the installation of a high energy source for ASTER.

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Incision rates Calibration Rock glacier Central Pyrenees 3He Aubrac Laschamp excursion Weathering Chlorine-36 Moraine Antarctic Cold Reversal Late Pleistocene glaciation Climate Burial dating Alluvial deposits Active fault 36Cl CRE dating Mongolia Late Glacial Cosmogenic radionuclides Denudation rates Palaeoclimates Paleoseismology Terrestrial cosmogenic nuclides TCN Little Ice Age Paraglacial Paleoclimate Beryllium Cosmogenic dating Moraines Denudation rate Rio Negro river Datations cosmogéniques Fault scarps Cosmogenic Organic matter Cosmonuclide 10Be Dating Coral reef terrace Beryllium-10 Gabon Quadrilatero Ferrifero Fluvial incision French Alps Himalaya Cosmogenic exposure dating Helium-3 Paleomagnetism Cosmic ray exposure dating Bhutan Brazil Glacier fluctuations Lake sediment Chiba composite section Fluorescence Pyrenees Southwestern Alps Holocene Evolution Lava flows Landscape evolution Deglaciation Cosmic-ray exposure dating Pleistocene Glaciation 26Al Mediterranea Penultimate Glacial Cycle Neogene Cosmogenic nuclide Cosmogenic burial dating 21Ne Active tectonics Monsoon Cosmogenic nuclides Authigenic 10Be/9Be ratio Kerguelen Glacial geomorphology Cosmogenic nuclide dating Cave deposits Luminescence dating Out-of-sequence thrust GSSP stratotype Nucléides cosmogéniques Panoply 10 Be cosmic-ray exposure dating Cosmogenic 10Be Radiocarbon Denudation 10Be cosmogenic nuclide Beryllium 10 Accelerator mass spectrometry River incision Production rate Erosion rates Cosmic-Ray Exposure dating Geomorphology Erosion Quaternary



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