Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8760
DC Field | Value | Language |
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dc.contributor.authorall | Mollo, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Putirka, K.; California State University, Fresno, Department of Earth and Environmental Sciences, 2576 E. San Ramon Avenue, MS/ST25, Fresno, California 93740-8039, U.S.A. | en |
dc.contributor.authorall | Misiti, V.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Soligo, M.; Dipartimento di Scienze Geologiche, Università “Roma Tre”, Largo San Leonardo Murialdo 1, 00146 Roma, Italy | en |
dc.contributor.authorall | Scarlato, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.date.accessioned | 2013-09-20T07:15:48Z | en |
dc.date.available | 2013-09-20T07:15:48Z | en |
dc.date.issued | 2013 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8760 | en |
dc.description.abstract | We have performed new global regression analyses to calibrate a model of equilibrium between clinopyroxene and co-existing melt. Then we have applied this model to a restricted but important range of clinopyroxene and melt compositions from Mt. Etna volcano. The degree of disequilibrium is determined through the comparison between components “predicted” for clinopyroxene via regression analyses of clinopyroxene-liquid pairs in equilibrium conditions, with those “measured” in the analyzed crystals. The model is tested using compositions not included into the calibration dataset, i.e., clinopyroxene-melt pairs obtained from equilibrium and cooling rate experiments conducted at ambient pressure on an Etnean trachybasalt. The experiments were duplicated at the NNO+1.5 and QFM oxygen buffering conditions estimated for magmas at Mt. Etna. Both equilibrium and disequilibrium clinopyroxene-melt pairs from the experiments were also used as input data for one of the most recent thermometers based on the Jd-DiHd exchange reaction. Results from calculations indicate that, under rapid cooling rate conditions, clinopyroxenes do not equilibrate with the melt. Consequently, the thermometers predict higher crystallization temperatures compared to the final experimental temperature, prior to rapid quenching of the experiment. The systematic difference between expected and measured compositions and temperatures allows us to calibrate a model that describes undercooling based on disequilibrium exchange reactions. We use this new tool to estimate the thermal history of naturally cooled lava flows and dikes at Mt. Etna volcano. | en |
dc.language.iso | English | en |
dc.publisher.name | Elsevier Science Limited | en |
dc.relation.ispartof | Chemical geology | en |
dc.relation.ispartofseries | /352 (2013) | en |
dc.subject | clinopyroxene | en |
dc.subject | cooling rate | en |
dc.subject | test for equilibrium | en |
dc.subject | thermometer | en |
dc.title | A new test for equilibrium based on clinopyroxene-melt pairs: Clues on the solidification temperatures of Etnean alkaline melts at post-eruptive conditions | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.description.pagenumber | 92-100 | en |
dc.subject.INGV | 05. General::05.02. Data dissemination::05.02.01. Geochemical data | en |
dc.identifier.doi | 10.1016/j.chemgeo.2013.05.026 | en |
dc.description.obiettivoSpecifico | 2.3. TTC - Laboratori di chimica e fisica delle rocce | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | open | en |
dc.relation.issn | 0009-2541 | en |
dc.relation.eissn | 1872-6836 | en |
dc.contributor.author | Mollo, S. | en |
dc.contributor.author | Putirka, K. | en |
dc.contributor.author | Misiti, V. | en |
dc.contributor.author | Soligo, M. | en |
dc.contributor.author | Scarlato, P. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | California State University, Fresno, Department of Earth and Environmental Sciences, 2576 E. San Ramon Avenue, MS/ST25, Fresno, California 93740-8039, U.S.A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | Dipartimento di Scienze Geologiche, Università “Roma Tre”, Largo San Leonardo Murialdo 1, 00146 Roma, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Università di Roma "La Sapienza" | - |
crisitem.author.dept | University of California | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Università “Roma Tre" | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.orcid | 0000-0002-6151-7789 | - |
crisitem.author.orcid | 0000-0003-1933-0192 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 05. General | - |
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 |
Files in This Item:
File | Description | Size | Format | |
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mollo et al. 2013_chemical geology.pdf | 1.39 MB | Adobe PDF | View/Open |
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