И снова Помпеи, и снова Ar/Ar


Автор сообщения: Alexei
Дата и время сообщения: 21 July 2006 at 13:52:18:

40Ar/39Ar ages of the AD 79 eruption of Vesuvius, Italy
Marvin Lanphere1, Duane Champion1, Leone Melluso2, Vincenzo Morra2, Annamaria Perrotta2, Claudio Scarpati2, Dario Tedesco2 and Andrew Calvert1

(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

Received: 23 April 2004 Accepted: 11 January 2006 Published online: 13 May 2006

Editorial responsibility R. Cioni
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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2378. И снова Помпеи, и снова Ar/Ar - Alexei 13:52 21.07.06 (387)
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