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Quaternary Geochronology 13 (1994) 619-623
POTENTIAL USE OF THE E' CENTER AS AN INDICATOR OF INITIAL RESETTING IN TL/ESR DATING OF VOLCANIC MATERIALS
Christophe Falguères 1, D. Miaillier 2, S. Sanzelle 2, J. Faïn 2, M. Laurent 2, M. Montret 2, Thierry Pilleyre 2, J.-J. Bahain 1
(1994)

Quartz inclusions embedded in volcanic materials can be used for dattng Quaternary volcanoes by TL or ESR methods. For these techniques the initial zeroing by heat is assumed. However, this assumption can sometimes be questioned either because the temperature was not high, like in phreatomagmatic deposits, or because of contamination, like in thin tephra layers. Preliminary observations suggested that the présence of thé E' center could be an indicator of poor initial zeroing. This possibility was investigated in the present work. Quartz grains from various geological contexts were studied for comparison. Annealing and régénération of the E' center was explored.
1 :  Institut de Paléontologie Humaine
CNRS : UMR9948
2 :  Laboratoire de Physique Corpusculaire de Clermont-Ferrand (LPC-CLERMONT)
CNRS : UMR6533 – IN2P3 – Université Blaise Pascal - Clermont-Ferrand II
Sciences de l'Homme et Société/Archéologie et Préhistoire

Planète et Univers/Sciences de la Terre/Géomorphologie
Volcanic materials – TL/ESR dating
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