Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/4266
DC FieldValueLanguage
dc.contributor.authorallGurioli, L.; University of Hawaiien
dc.contributor.authorallHarris, A.; University of Hawaiien
dc.contributor.authorallHoughton, B.; University of Hawaiien
dc.contributor.authorallPolacci, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.authorallRipepe, M.; Università di Firenzeen
dc.date.accessioned2008-11-24T16:54:35Zen
dc.date.available2008-11-24T16:54:35Zen
dc.date.issued2008-08en
dc.identifier.urihttp://hdl.handle.net/2122/4266en
dc.description.abstractVillarrica volcano (Chile) is one of the most active volcanoes in South America. Its activity is currently characterized by continuous degassing from a summit lava lake/vent punctuated by explosive events. During November 2004 a multidisciplinary experiment was deployed for a 10-d period to define the style of emission and infer shallow conduit dynamics at this basaltic center. This involved collection of thermal, seismic and infrasonic data to describe the background activity confined inside the crater, and use of samples to texturally and chemically characterize the ejecta from more energetic explosions able to attain the crater rim. The background activity was characterized by gas bursting with a frequency of 9 events per minute. This involved emission of gas puffs fed by bubble bursting, with larger bursts emplacing sheets of magma onto the lower crater walls. The ejecta population from the more energetic events was characterized by the coexistence of both scoriae and golden pumice. These two types of clasts have different textures but identical glass compositions, suggesting that they underwent different conduit histories. The golden pumice is interpreted as the expanding inner part of a short-lived jet fed by a rapidly ascending, magma batch. The scoria forms the outer portion of the jet and comprises degassed material entrained during passage of the fresh batch through material residing in the upper-most portion of the conduit. We thus have a largely degassed upper column that feeds persistent bubble bursting, through which fresh batches occasionally rise to feed events of relatively higher energy.en
dc.language.isoEnglishen
dc.publisher.nameAGUen
dc.relation.ispartofJournal Of Geophysical Researchen
dc.relation.ispartofseries/113 (2008)en
dc.subjectbasaltic activityen
dc.subjectremote sensingen
dc.titleTextural and geophysical characterization of explosive basaltic activity at Villarrica volcanoen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumberB08206en
dc.subject.INGV05. General::05.02. Data dissemination::05.02.03. Volcanic eruptionsen
dc.identifier.doi10.1029/2007JB005328en
dc.description.obiettivoSpecifico2.3. TTC - Laboratori di chimica e fisica delle rocceen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorGurioli, L.en
dc.contributor.authorHarris, A.en
dc.contributor.authorHoughton, B.en
dc.contributor.authorPolacci, M.en
dc.contributor.authorRipepe, M.en
dc.contributor.departmentUniversity of Hawaiien
dc.contributor.departmentUniversity of Hawaiien
dc.contributor.departmentUniversity of Hawaiien
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.contributor.departmentUniversità di Firenzeen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptDepartment of Geology and Geophysics, SOEST, University of Hawaii, Honolulu, USA-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.orcid0000-0002-5066-5153-
crisitem.author.orcid0000-0003-3318-8700-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent05. General-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
Appears in Collections:Article published / in press
Files in This Item:
File Description SizeFormat Existing users please Login
Gurioli_JGR08.pdf2.33 MBAdobe PDF
Show simple item record

WEB OF SCIENCETM
Citations 50

66
checked on Feb 10, 2021

Page view(s) 50

149
checked on Mar 27, 2024

Download(s)

30
checked on Mar 27, 2024

Google ScholarTM

Check

Altmetric