ESR dating of quartz extracted from quaternary and neogene sedimentsmethod, potential and actual limits

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Laurent, Michel | Falguères, Christophe | Bahain, Jean-Jacques | Rousseau, Louis | van Vliet Lanoé, Brigitte

Edité par CCSD ; Elsevier -

International audience. ESR dating of fluvial, fluvio-marine and beach sediment has been tested using the Al centre in quartz grains from a basin and fossil beaches located around the Manche Channel. Dating was performed in conjunction with sedimentological, stratigraphical and neotectonical studies. The technical basis of the method is presented in the light of the study made on recent and fossil sediment in order to establish a procedure for the determination of the palaeodose. The application on a Neogene Basin samples allows to push back the dating ESR limits. Results show that ESR dating of sediment can provide chronozons which are necessary to the uderstanding of the history of a basin where classical chronological markers do not exist.

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