Light-Lithophile Element Metasomatism of Finero Peridotite (W Alps): A Secondary-Ion Mass Spectrometry Study. (Articolo in rivista)

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  • Light-Lithophile Element Metasomatism of Finero Peridotite (W Alps): A Secondary-Ion Mass Spectrometry Study. (Articolo in rivista) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s00604-006-0551-8 (literal)
Alternative label
  • Raffone N.; Le Fèvre B.; Ottolini L.; Vannucci R.; Zanetti A. (2006)
    Light-Lithophile Element Metasomatism of Finero Peridotite (W Alps): A Secondary-Ion Mass Spectrometry Study.
    in Mikrochimica acta (1966, Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Raffone N.; Le Fèvre B.; Ottolini L.; Vannucci R.; Zanetti A. (literal)
Pagina inizio
  • 251 (literal)
Pagina fine
  • 255 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 155 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • DOI 10.1007/s00604-006-0551-8. (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-2 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Raffone N. 1), Le Fevre B. 2), Ottolini L. 2), Vannucci R. 1), 2), and Zanetti A. 2). 1) Dipartimento di Scienze della Terra, Università degli Studi di Pavia, via Ferrata 1, I-27100 Pavia, Italy; 2) CNR-Istituto di Geoscienze e Georisorse, Sezione di Pavia, Via Ferrata 1, I-27100 Pavia, Italy (literal)
Titolo
  • Light-Lithophile Element Metasomatism of Finero Peridotite (W Alps): A Secondary-Ion Mass Spectrometry Study. (literal)
Abstract
  • The high sensitivity of Secondary-Ion Mass Spectrometry (SIMS) in determining very low trace-element concentrations (down to few ppb wt) has been used to address the important issue of the Light-Lithophile Element (LLE) signatures of mantle peridotites and their potential utility as tracers of transfer of subducted material into the overlying mantle wedge operated either by slab-related fluids or melts. The effects of such metasomatic agents have been described and interpreted on the basis of geochemical and isotopic characteristics of peridotites. However, direct observation of metasomatic processes occurring in the mantle is limited because the most highly metasomatised peridotites are usually found as xenoliths which do not allow large-scale chemical information. In this context, the Finero phlogopite-peridotite massif (Ivrea-Verbano Zone, western Italian Alps) offers a unique opportunity because it contains hydrous mineral assemblages (amphibole + phlogopite±apatite) and trace element enrichments, supposed to be related to the pervasive migration of slab-derived melts. In this study we report the results of texture-related SIMS investigations performed on a wide range of trace elements such as Li, B, Large-Ion Lithophile Elements (LILE), Rare Earth Elements (REE), Nb, Zr, Ti on clinopyroxenes from the Finero peridotite. SIMS analyses revealed unusual LLE signatures that highlight the role of crust-derived components and open new perspectives on the timing of metasomatic processes. (literal)
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