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Welcome to the National Cosmogenic Nuclides Laboratory - LN2C

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


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Catherine Beaussier
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