Publikationsdatum:
2017-04-04
Beschreibung:
A new eruption started at Stromboli on August 6, 2014, which had been preceded by 2 months of increased Strombolian activity and several lava overflows from the craters. The eruption was characterized by a lava effusion in Sciara del Fuoco from a fracture at 650 m a.s.l. that lasted until November 13–17. Here we present the first geochemical observations of this eruption, based on the soil CO2 flux in the summit area, and on 3He/4He ratios in the thermal waters near Stromboli village. We infer that this eruption was triggered by the gradual replenishment of the feeding system by a CO2- and 3He-rich magma at the end of 2013 and after June 2014, suggested by the increase in 3He/4He ratio before eruption, which reached its highest value since 2007. We thus infer that this eruption was unusual and we finally speculate on the evolutionary scenario of post eruption.
Beschreibung:
Published
Beschreibung:
2235–2243
Beschreibung:
2V. Dinamiche di unrest e scenari pre-eruttivi
Beschreibung:
3V. Dinamiche e scenari eruttivi
Beschreibung:
5V. Sorveglianza vulcanica ed emergenze
Beschreibung:
JCR Journal
Beschreibung:
restricted
Schlagwort(e):
Stromboli
;
eruption
;
soil CO2 flux
;
3He/4He ratio
;
thermal waters
;
04. Solid Earth::04.08. Volcanology::04.08.01. Gases
;
04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring
Repository-Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Materialart:
article
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