Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy) (Articolo in rivista)

Type

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

Label

• Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy) (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

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

• 10.1029/2008TC002419 (literal)

Alternative label

• Lustrino M.1,2; Morra V.3; Fedele L.3; Franciosi L.3 (2009)
  Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy)
  in Tectonics (Washington, D.C.); AGU, American geophysical union, Washington, DC (Stati Uniti d'America)
  (literal)

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

• Lustrino M.1,2; Morra V.3; Fedele L.3; Franciosi L.3 (literal)

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

• http://www.agu.org/pubs/crossref/2009/2008TC002419.shtml (literal)

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

• 28 (literal)

Rivista

• Tectonics (Rivista)

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

• doi:10.1029/2008TC002419. (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• 1 Dipartimento di Scienze della Terra, Universita` degli Studi di Roma La Sapienza, Rome, Italy; 2 CNR, Istituto di Geologia Ambientale e Geoingegneria, Dipartimento di Scienze della Terra, Universita` degli Studi di Roma La Sapienza, Rome, Italy; 3 Dipartimento di Scienze della Terra, Universita` degli Studi di Napoli Federico II, Naples, Italy. (literal)

Titolo

• Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy) (literal)

Abstract

• Major and trace element analyses plus six new 40Ar/39Ar data obtained on feldspar separates for selected igneous rocks belonging to the Oligo-Miocene igneous activity of Sardinia are reported here. The rocks show ''subduction-related'' geochemical characteristics, ascribed to the metasomatic modification of a mantle wedge developed above a W/NW directed subduction system involving the recycling of Neo-Tethyan oceanic lithosphere beneath the southern European margin. The 40Ar/39Ar data shift back the beginning of the igneous activity in Sardinia to late Eocene (38.28 ± 0.26 Ma), whereas the end of the igneous activity is possibly shifted forward to late middle Miocene (12.24 ± 0.98 Ma). We therefore propose to rename the Oligo-Miocene igneous phase as the ''late Eocene-middle Miocene'' phase. Rare earth element inversion modeling on subduction-related volcanic rocks of Sardinia requires equilibrium with spinel-lherzolite facies, therefore implying depths of formation lower than ?80 km. To reach these depths, a 45? dipping slab needs ?11 to ?4 Myr (with 1 to 3 cm/yr subduction velocity, respectively), reducing the beginning of Apennine subduction to the ?49-42 Ma interval. The different models proposed in literature to explain the origin and the evolution of the central western Mediterranean basins are here reviewed and critically discussed. (literal)

Editore

• AGU, American geophysical union (Editore)

Prodotto di

• Studio delle interazioni tra fluidi e solidi nei processi di metasomatismo del mantello e nella genesi ed evoluzione dei magmi. (TA.P05.025.007) (Modulo)
• Institute of environmental geology and geoengineering (IGAG) (Istituto)

Autore CNR

• MICHELE LUSTRINO (Persona)

Insieme di parole chiave

• Parole chiave di "Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy)" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of environmental geology and geoengineering (IGAG) (Istituto)
• Studio delle interazioni tra fluidi e solidi nei processi di metasomatismo del mantello e nella genesi ed evoluzione dei magmi. (TA.P05.025.007) (Modulo)

Autore CNR di

• MICHELE LUSTRINO (Persona)

Editore di

• AGU, American geophysical union (Editore)

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

• Tectonics (Rivista)

Insieme di parole chiave di

• Parole chiave di "Beginning of the Apennine subduction system in central western Mediterranean: constraints from Cenozoic “orogenic” magmatic activity of Sardinia (Italy)" (Insieme di parole chiave)