Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3402
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dc.contributor.authorallRotolo, S. G.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.authorallLa Felice, S.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.authorallMangalaviti, A.; Dipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.authorallLandi, P.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
dc.date.accessioned2007-12-16T10:35:33Zen
dc.date.available2007-12-16T10:35:33Zen
dc.date.issued2007en
dc.identifier.urihttp://hdl.handle.net/2122/3402en
dc.description.abstractPantelleritic 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.isoEnglishen
dc.publisher.nameSocietà Geologica Italianaen
dc.relation.ispartofBollettino della Società Geologica Italianaen
dc.relation.ispartofseries2 / 126 (2007)en
dc.subjectPantelleritesen
dc.subjectPantelleriaen
dc.subjectperalkaline magmatismen
dc.subjecthaliteen
dc.titleGeology and petrochemistry of the recent (<25 ka) silicic volcanism at Pantelleria Islanden
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber191-208en
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.05. Volcanic rocksen
dc.description.obiettivoSpecifico2.3. TTC - Laboratori di chimica e fisica delle rocceen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorRotolo, Silvio Giuseppeen
dc.contributor.authorLa Felice, S.en
dc.contributor.authorMangalaviti, A.en
dc.contributor.authorLandi, P.en
dc.contributor.departmentDipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.departmentDipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.departmentDipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Pisa, Pisa, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptUniversità degli Studi di Palermo-
crisitem.author.deptDipartimento di Chimica e Fisica della Terra (C.F.T.A.), Università degli Studi di Palermo, Palermo, Italy.-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia-
crisitem.author.orcid0000-0001-7523-1338-
crisitem.author.orcid0000-0002-8463-5710-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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