Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1093/petrology/egg084 (literal)

Alternative label

• Perini G.; Francalanci L.; Davidson J.P.; Conticelli S. (2004)
  Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas
  in Journal of petrology (Print); Oxford University Press, Oxford (Regno Unito)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Perini G.; Francalanci L.; Davidson J.P.; Conticelli S. (literal)

Pagina inizio

• 139 (literal)

Pagina fine

• 182 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://petrology.oxfordjournals.org/content/45/1.toc (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 45 (literal)

Rivista

• Journal of petrology (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 1 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Perini: Dipartimento di Scienze della Terra, Università degli Studi di Firenze & IGG-CNR sezione di Firenze Francalanci: Dipartimento di Scienze della Terra, Università degli Studi di Firenze & IGG-CNR sezione di Firenze Davidson: Department of Geological Sciences, University of Durham, South Road, Durham, UK Conticelli: Dipartimento di Scienze della Terra, Università degli Studi di Firenze & IGG-CNR sezione di Firenze (literal)

Titolo

• Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas (literal)

Abstract

• Vico volcano has erupted potassic and ultrapotassic magmas, ranging from silica-saturated to silica-undersaturated types, in three distinct volcanic periods over the past 0?5Myr. During Period I magma compositions changed from latite to trachyte and rhyolite, with minor phono-tephrite; during Periods II and III the erupted magmas were primarly phono-tephrite to tephri- phonolite and phonolite; however, magmatic episodes involving leucite-free eruptives with latitic, trachytic and olivine latitic compositions also occurred. In Period II, leucite-bearing mag- mas (87Sr/86 Srinitial ˆ 0?71037---0?71115) were derived from a primitive tephrite parental magma. Modelling of phonolites with different modal plagioclase and Sr contents indicates that low-Sr phonolitic lavas differentiated from tephri-phonolite by fractional crystallization of 7% olivine‡27% clinopyroxene‡ 54% plagioclase ‡ 10% Fe---Ti oxides ‡ 4% apatite at low pressure, whereas high-Sr phonolitic lavas were generated by fractional crystallization at higher pressure. More differen- tiated phonolites were generated from the parental magma of the high-Sr phonolitic tephra by fractional crystallization of 10---29% clinopyroxene ‡ 12---15% plagioclase ‡ 44---67% sanidine ‡ 2---4% phlogopite ‡ 1---3% apatite ‡ 7---10% Fe---Ti oxides. In contrast, leucite-bearing rocks of Period III (87Sr/86Srinitial ˆ 0?70812---0?70948) were derived from a potassic trachybasalt by assimilation---fractional crystallization with 20---40% of solid removed and r ˆ 0?4---0?5 (where r is assimilation rate/crystallization rate) at different pressures. Silica-saturated magmas of Period II (87Sr/86Srinitial ˆ 0?71044---0?71052) appear to have been generated from an olivine latite similar to some of the youngest erupted products. A primitive tephrite, a potassic trachybasalt and an olivine latite are inferred to be the parental magmas at Vico. These magmas were generated by partial melting of a veined lithospheric mantle sources with different vein---peridotite/wall-rock proportions, amount of residual apatite and distinct isolation times for the veins. (literal)

Editore

• Oxford University Press (Editore)

Prodotto di

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Geodinamica ed evoluzione della litosfera continentale (TA.P04.015.003) (Modulo)

Autore CNR

• Sandro Conticelli (Unità di personale esterno)
• GIULIA PERINI (Unità di personale interno)
• LORELLA FRANCALANCI (Unità di personale esterno)

Insieme di parole chiave

• Parole chiave di "Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas" (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Geodinamica ed evoluzione della litosfera continentale (TA.P04.015.003) (Modulo)

Autore CNR di

• Sandro Conticelli (Unità di personale esterno)
• LORELLA FRANCALANCI (Unità di personale esterno)
• GIULIA PERINI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of petrology (Rivista)

Editore di

• Oxford University Press (Editore)

Insieme di parole chiave di

• Parole chiave di "Evolution and Genesis of Magmas from Vico Volcano, Central Italy: Multiple Differentiation Pathways and Variable Parental Magmas" (Insieme di parole chiave)