Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3402
DC Field | Value | Language |
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dc.contributor.authorall | Rotolo, S. G.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | en |
dc.contributor.authorall | La Felice, S.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | en |
dc.contributor.authorall | Mangalaviti, A.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | en |
dc.contributor.authorall | Landi, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italia | en |
dc.date.accessioned | 2007-12-16T10:35:33Z | en |
dc.date.available | 2007-12-16T10:35:33Z | en |
dc.date.issued | 2007 | en |
dc.identifier.uri | http://hdl.handle.net/2122/3402 | en |
dc.description.abstract | Pantelleritic pumice fall on the northern slopes of M. Grande have built a complex sequence of interfingered deposits emitted by closely spaced eruptive vents which are frequently associated with dome-building phases and pantelleritic lavas flows. Field relationships allowed us to recognize eight eruptive units, all lying above the Montagna Grande trachytes. As a whole, petrochemical characteristics of the erupted products indicate an evolutionary trend in which Na-clinopyroxene was the liquidus phase, followed by alkali feldspar. Amphibole and quartz are late-crystallizing, whereas aenigmatite is both early- and late-crystallizing as well. Aenigmatite and Na-clinopyroxene crystallization buffers efficiently the increase of agpaicity, induced by feldspar crystallization, to values of agpaitic index <2.0. Some eruptions are characterized by distinctive mineral assemblages: the couple amphibole + aegirine occurs in the Fastuca tephra, whilst the fayalite + ilmenite + quartz association characterizes the Randazzo tephra. The Fastuca eruption, the most powerful among those studied, tapped a reservoir characterized by lower temperature and highly reducing conditions in comparison with the other eruptions. The frequent coexistence of Na-rich and Na-poor pyroxenes, may result from syn-eruptive mixing among variably evolved pantelleritic magmas. The occurrence of late-precipitated halite witnesses the exsolution of a Cl-rich brine during magma ascent. | en |
dc.language.iso | English | en |
dc.publisher.name | Società Geologica Italiana | en |
dc.relation.ispartof | Bollettino della Società Geologica Italiana | en |
dc.relation.ispartofseries | 2 / 126 (2007) | en |
dc.subject | Pantellerites | en |
dc.subject | Pantelleria | en |
dc.subject | peralkaline magmatism | en |
dc.subject | halite | en |
dc.title | Geology and petrochemistry of the recent (<25 ka) silicic volcanism at Pantelleria Island | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 191-208 | en |
dc.subject.INGV | 04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocks | en |
dc.description.obiettivoSpecifico | 2.3. TTC - Laboratori di chimica e fisica delle rocce | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | reserved | en |
dc.contributor.author | Rotolo, Silvio Giuseppe | en |
dc.contributor.author | La Felice, S. | en |
dc.contributor.author | Mangalaviti, A. | en |
dc.contributor.author | Landi, P. | en |
dc.contributor.department | Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | en |
dc.contributor.department | Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | en |
dc.contributor.department | Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | 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 degli Studi di Palermo | - |
crisitem.author.dept | Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy. | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.orcid | 0000-0001-7523-1338 | - |
crisitem.author.orcid | 0000-0002-8463-5710 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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