Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/5651
DC Field | Value | Language |
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dc.contributor.authorall | Barsanti, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Papale, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Barbato, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.authorall | Moretti, R.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.authorall | Boschi, E.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia | en |
dc.contributor.authorall | Hauri, E.; Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D. C., USA | en |
dc.contributor.authorall | Longo, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.date.accessioned | 2010-01-18T12:41:50Z | en |
dc.date.available | 2010-01-18T12:41:50Z | en |
dc.date.issued | 2009-12-09 | en |
dc.identifier.uri | http://hdl.handle.net/2122/5651 | en |
dc.description.abstract | Due to its very low solubility in silicate melts, CO2 concentrations in melt inclusions (MIs) within crystals are commonly orders of magnitude less than the total concentration in the multiphase magma, strongly limiting the possibility to constrain CO2 abundance based on the dissolved quantities. Here we develop a statistical method to process MI data, which allows analytical uncertainties to be taken into account together with the peculiar features of the local saturation surface. The method developed leads to retrieve total H2O and CO2 concentrations in magma as well as the gas phase abundance at the time of magma crystallization. Application to a set of 29 high-resolution secondary ion mass spectrometry (SIMS) MI data from a single specimen of the 1842–1844 eruption of Kilauea, Hawaii, reveals the existence of heterogeneous total CO2 abundance, and of at least 2–6 wt % total CO2 in some magma batches, two orders of magnitude higher than the dissolved amounts and 30–50 times more abundant than the corresponding total H2O content. Heterogeneous total volatile concentrations are interpreted as due to a combination of degassing and gas flushing in magma subject to convective motion at shallow depth where P < 100 MPa. In such a view, the magma rising to shallow depth in the volcanic system carries initially a total volatile content ≤1 wt %, corresponding to the determined low total CO2 population, and consistent with previous global estimates. The high CO2 populations correspond to progressive CO2 enrichment due to degassing at low P and flushing from a deep CO2-rich gas. A total CO2 content >1 wt % is likely to characterize the >30 km deep magma, not represented in the analyzed inclusions, from which a CO2-rich gas phase exsolves and decouples from the liquid. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Journal of Geophysical Research | en |
dc.relation.ispartofseries | /114(2009) | en |
dc.subject | carbon dioxide | en |
dc.subject | Kilauea volcano | en |
dc.subject | conduit dynamics | en |
dc.title | Heterogeneous large total CO2 abundance in the shallow magmatic system of Kilauea volcano, Hawaii | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | B12201 | en |
dc.identifier.URL | http://www.agu.org/journals/jb/jb0912/2008JB006187/2008JB006187.pdf | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas | en |
dc.identifier.doi | 10.1029/2008JB006187 | en |
dc.description.obiettivoSpecifico | 3.5. Geologia e storia dei vulcani ed evoluzione dei magmi | en |
dc.description.obiettivoSpecifico | 4.3. TTC - Scenari di pericolosità vulcanica | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Barsanti, M. | en |
dc.contributor.author | Papale, P. | en |
dc.contributor.author | Barbato, D. | en |
dc.contributor.author | Moretti, R. | en |
dc.contributor.author | Boschi, E. | en |
dc.contributor.author | Hauri, E. | en |
dc.contributor.author | Longo, A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione OV, Napoli, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione AC, Roma, Italia | en |
dc.contributor.department | Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, D. C., USA | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, 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 | Università di Pisa | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Centro Interdipartimentale di Ricerche in Ingegneria Ambientale, Seconda Università di Napoli, Naples, Italy. | - |
crisitem.author.dept | Carnegie Institution, Dept. Terrestrail magnetism | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.orcid | 0000-0002-5207-2124 | - |
crisitem.author.orcid | 0000-0003-2031-5192 | - |
crisitem.author.orcid | 0000-0001-6590-6346 | - |
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.classification.parent | 04. Solid Earth | - |
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 | - |
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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JGR_Barsanti et al_2009.pdf | 327.32 kB | Adobe PDF |
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