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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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10Be 36Cl cosmic-ray exposure dating Luminescence dating Chiba composite section Authigenic 10Be/9Be ratio Beryllium-10 Cosmogenic nuclides CLIMATIC CHANGES Active faults 14CdatingPeruvian Andes Cosmic ray exposure dating Beryllium Panoply Be-10 36 cl cosmic-ray exposure dating Analyse isotopique Himalaya Ardennes massif Cosmogenic dating Carbonates Cosmogenic Fluvial incision Paleoseismology 21Ne Absolute dating Bearing phases CRT Alluvial terrace chronosequence Byers Peninsula Holocene Incision rates 36Cl cosmogenic isotope Calibration Surface exposure dating Cameroon Evolution Active fault Cave deposits Azanaques Lava flows Ages Cave levels Paleomagnetism Cosmogenic 10Be CRE 36Cl dating Denudation Aeolian geomorphology Paleoclimate Denudation rate 42 ka event Aquifère côtier Automated bench Brazilian passive margin escarpment Lake sediment Aeolian sedimentation Accelerator mass spectrometry Antarctic Cold Reversal 26Al Analyse géochimique Radiocarbon Badain jaran desert COSMOGENIC NUCLIDES Be Quaternary Block slope Pleistocene Australia Terrestrial cosmogenic nuclides TCN Chert Aeolian erosion Angola Bhutan Chernobyl Carbonate Denudation rates Antarctic Peninsula Asia Kerguelen Bolivian Altiplano Geomorphology Calcaire crétacé 10Be cosmogenic nuclide Aluminum Cenozoic Madrid Basin Challapata fan-delta Asterobelt Coral reef terrace Authigenic 10Be/ 9 Be dating Cosmogenic burial dating Aurignacien Al Glacier fluctuations Pyrenees Cosmogenic radionuclides Buzzsaw Acheulian hominins Cosmonuclide Landscape evolution Burial dating Andes


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