Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11868
DC Field | Value | Language |
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dc.date.accessioned | 2018-05-04T08:11:03Z | en |
dc.date.available | 2018-05-04T08:11:03Z | en |
dc.date.issued | 2017-05-24 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11868 | en |
dc.description.abstract | The proximity of the major city of Arequipa to El Misti has focused attention on the hazards posed by the active volcano. Since its last major eruption in the fifteenth century, El Misti has experienced a series of modest phreatic eruptions and fluctuating fumarolic activity. Here, we present the first measurements of the compositions of gas emitted from the lava dome in the summit crater. The gas composition is found to be fairly dry with a H2O/SO2 molar ratio of 32 ± 3, a CO2/ SO2 molar ratio of 2.7 ± 0.2, a H2S/SO2 molar ratio of 0.23 ± 0.02 and a H2/SO2 molar ratio of 0.012 ± 0.002. This magmatic gas signature with minimal evidence of hydrothermal or wall rock interaction points to a shallow magma source that is efficiently outgassing through a permeable conduit and lava dome. Field and satellite observations show no evolution of the lava dome over the last decade, indicating sustained outgassing through an established fracture network. This stability could be disrupted if dome permeability were to be reduced by annealing or occlusion of outgassing pathways. Continued monitoring of gas composition and flux at El Misti will be essential to determine the evolution of hazard potential at this dangerous volcano. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Bulletin of Volcanology | en |
dc.relation.ispartofseries | /79 (2017) | en |
dc.title | Magmatic gas percolation through the old lava dome of El Misti volcano | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 46 | en |
dc.identifier.doi | 10.1007/s00445-017-1129-5 | en |
dc.description.obiettivoSpecifico | 3V. Proprietà dei magmi e dei prodotti vulcanici | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Moussallam, Yves | en |
dc.contributor.author | Peters, Nial | en |
dc.contributor.author | Masias, Pablo | en |
dc.contributor.author | Apaza, Fredy | en |
dc.contributor.author | Barnie, Talfan | en |
dc.contributor.author | Ian Schipper, C. | en |
dc.contributor.author | Curtis, Aaron | en |
dc.contributor.author | Tamburello, Giancarlo | en |
dc.contributor.author | Aiuppa, Alessandro | en |
dc.contributor.author | Bani, Philipson | en |
dc.contributor.author | Giudice, Gaetano | en |
dc.contributor.author | Pieri, David | en |
dc.contributor.author | Gerard Davies, Ashley | en |
dc.contributor.author | Oppenheimer, Clive | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Bologna, Bologna, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione OE, Catania, Italia | - |
crisitem.author.dept | Jet Propulsion Laboratory | - |
crisitem.author.orcid | 0000-0002-4707-8943 | - |
crisitem.author.orcid | 0000-0001-6817-6262 | - |
crisitem.author.orcid | 0000-0002-9064-3370 | - |
crisitem.author.orcid | 0000-0001-7770-5226 | - |
crisitem.author.orcid | 0000-0002-0254-6539 | - |
crisitem.author.orcid | 0000-0002-1041-2071 | - |
crisitem.author.orcid | 0000-0002-9410-4139 | - |
crisitem.author.orcid | 0000-0003-4506-7260 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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4.s00445-017-1129-5.pdf | 2 MB | Adobe PDF |
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