Search results for "EPR dating"

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Electron Paramagnetic Resonance and petrographic analysis for dating Mesolithic and Neolithic pottery from Al Khiday (Sudan)

2016

Abstract Electron Paramagnetic Resonance (EPR) dating, like luminescence techniques, is based on the time-dependent accumulation of trapped charges at mineral defect centres. However, Fe(III) ions prevent the common Continuous Wave (CW-EPR) approach for dating pottery, which always contains iron. The Pulsed method (ED-EPR) allowed this limitation to be overcome, with recording of radiation-induced defect signals, as shown by increased signal intensity after artificial irradiation of samples. The method was applied to studying Mesolithic and Neolithic pottery from Al Khiday (Central Sudan), characterized by quartz-rich tempers and coming from dated contexts. As the occurrence of a natural ED…

010506 paleontologyRadiation060102 archaeologyAl Khiday; EPR dating; Prehistoric pottery; Quartz; Radiation; InstrumentationMineralogy06 humanities and the artsQuartz01 natural sciencesEPR datinglaw.inventionPetrographylawPrehistoric pottery0601 history and archaeologyPotterySignal intensityElectron paramagnetic resonanceAl KhidayQuartzInstrumentationGeologyMesolithic0105 earth and related environmental sciences

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