Attempts at dating pumice deposits around 580 ka by use of red TL and ESR of xenolithic quartz inclusions
| Autor: | Christophe Falguères, Th. Pilleyre, Jean Fain, Serge Sanzelle, M. Montret, Didier Miallier, S. Soumana |
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| Přispěvatelé: | Laboratoire de Physique Corpusculaire - Clermont-Ferrand (LPC), Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 1994 |
| Předmět: |
010506 paleontology
geography Radiation geography.geographical_feature_category Materials science Mineralogy [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] 01 natural sciences Thermoluminescence 030218 nuclear medicine & medical imaging Esr spectra Volcanic rock 03 medical and health sciences Igneous rock 0302 clinical medicine Absolute dating Pumice Instrumentation Quartz Laser methods 0105 earth and related environmental sciences |
| Zdroj: | Radiation Measurements International Specialist Seminar On Thermoluminescence And Electron Spin Resonance Dating. 7 International Specialist Seminar On Thermoluminescence And Electron Spin Resonance Dating. 7, Jul 1993, Krems, Austria. pp.399-404 |
| ISSN: | 1350-4487 |
| DOI: | 10.1016/1350-4487(94)90070-1 |
| Popis: | The ESR dating technique and the TL dating technique were applied to the same samples of quartz grains, which were heated during a pumice eruption dated at 580±20 ka by means of 40Ar/39Ar single grain laser fusion. The additive dose technique was used. The age obtained by use of the red TL quartz, 544±42 ka, was in agreement with the expected age. The Al and Ti paramagnetic centres of quartz gave highly scattered age results, depending on the regression method that was used; for this reason, it was not possible to propose any reliable ESR age. This seems to confirm the analysis of the relevant literature, which suggests that the long-range dating limit of the technique is below half a million years. |
| Databáze: | OpenAIRE |
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