40Ar/39Ar ages of the AD 79 eruption of Vesuvius,Italy |
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| Authors: | Marvin Lanphere Duane Champion Leone Melluso Vincenzo Morra Annamaria Perrotta Claudio Scarpati Dario Tedesco Andrew Calvert |
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| Affiliation: | (1) US Geological Survey, 345 Middlefield Road, Menlo Park, CA 94925, USA;(2) Dipartmento di Geofisica e Vulcanologia, Universita di Napoli Federico II, Napoli, 081253111, Italy |
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| Abstract: | The Italian volcano, Vesuvius, erupted explosively in AD 79. Sanidine from pumice collected at Casti Amanti in Pompeii and Villa Poppea in Oplontis yielded a weighted-mean 40Ar/39Ar age of 1925±66 years in 2004 (1σ uncertainty) from incremental-heating experiments of eight aliquants of sanidine. This is the calendar age of the eruption. Our results together with the work of Renne et al. (1997) and Renne and Min (1998) demonstrate the validity of the 40Ar/39Ar method to reconstruct the recent eruptive history of young, active volcanoes. |
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| Keywords: | 40Ar/39Ar Geochronology AD 79 eruption Historic eruption |
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