Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8912
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 | Blundy, J. D.; University of Bristol | en |
dc.contributor.authorall | Iezzi, G.; Università Chieti | en |
dc.contributor.authorall | Scarlato, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.authorall | Langone, A.; CNR | en |
dc.date.accessioned | 2014-02-10T10:40:12Z | en |
dc.date.available | 2014-02-10T10:40:12Z | en |
dc.date.issued | 2013 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8912 | en |
dc.description.abstract | We present the variation in trace element partition coefficients measured at the interface between rapidly cooled clinopyroxene crystals and co-existing melts. Results indicate that, as the cooling rate is increased, clinopyroxene crystals are progressively depleted in Si, Ca and Mg counterbalanced by enrichments in Al (mainly tetrahedral Aliv), Na and Ti. Partition coefficients (Ds) for rare earth elements (REE), high field strength elements (HFSE) and transition elements (TE) increase with increasing cooling rate, in response to clinopyroxene compositional variations. The entry of REE into the M2 site is facilitated by a coupled substitution where either Na substitutes for Ca on the M2 site or Aliv substitutes for Si in the tetrahedral site. The latter substitution reflects an increased ease of locally balancing the excess charge at M2 as the number of surrounding Aliv atoms increases. Due to the lower concentration of Ca in rapidly cooled clinopyroxenes, divalent large ion lithophile elements (LILE) on M2 decrease at the expense of monovalent cations. Conversely, higher concentrations of HFSE and TE on the M1 site are facilitated as the average charge on this site increases with the replacement of divalent-charged cations by Alvi. Although crystallization kinetics modify clinopyroxene composition, deviations from equilibrium partitioning are insufficient to change the tendency of a trace element to be compatible or incompatible. Consequently, there are regular relationships between ionic radius, valence of the trace element and D. At both equilibrium and cooling rate conditions, Ds for isovalent cations define parabola-like curves when plotted against ionic radius, consistent with the lattice strain model, demonstrating that the partitioning of trace elements is driven by charge balance mechanisms; cation substitution reactions can be treated in terms of the energetics of the various chargeimbalanced configurations. | en |
dc.language.iso | English | en |
dc.publisher.name | Springer Verlag Germany | en |
dc.relation.ispartof | Contributions to Mineralogy and Petrology | en |
dc.relation.ispartofseries | /166(2013) | en |
dc.subject | trace element partitioning | en |
dc.title | The partitioning of trace elements between clinopyroxene and trachybasaltic melt during rapid cooling and crystal growth | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 1633-1654 | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.05. Mineralogy and petrology | en |
dc.identifier.doi | 10.1007/s00410-013-0946-6 | en |
dc.description.obiettivoSpecifico | 2R. Laboratori sperimentali e analitici | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 0010-7999 | en |
dc.relation.eissn | 1432-0967 | en |
dc.contributor.author | Mollo, S. | en |
dc.contributor.author | Blundy, J. D. | en |
dc.contributor.author | Iezzi, G. | en |
dc.contributor.author | Scarlato, P. | en |
dc.contributor.author | Langone, A. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | University of Bristol | en |
dc.contributor.department | Università Chieti | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
dc.contributor.department | CNR | 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 Roma "La Sapienza" | - |
crisitem.author.dept | University of Bristol | - |
crisitem.author.dept | Università degli studi G. D'annunzio, Chieti Pescara, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
crisitem.author.dept | Istituto di Geoscienze e Georisorse, CNR, Via U.O.S. of Pavia, via Ferrata, 1, Pavia, Italy | - |
crisitem.author.orcid | 0000-0003-1933-0192 | - |
crisitem.author.orcid | 0000-0002-7346-2922 | - |
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 | - |
Appears in Collections: | Article published / in press |
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06_Mollo et al._2013_CMP_166_1633-1654.pdf | 1.21 MB | Adobe PDF |
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