Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes. (Articolo in rivista)

Type

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

Label

• Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes. (Articolo in rivista) (literal)

Anno

• 2010-01-01T00:00:00+01:00 (literal)

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

• 10.1007/s00410-009-0441-2 (literal)

Alternative label

• Schiavi F.; Kobayashi K.; Moriguti T.; Nakamura E.; Pompilio M.; Tiepolo M.; Vannucci R. (2010)
  Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes.
  in Contributions to mineralogy and petrology; Springer-Verlag, Berlin (Germania)
  (literal)

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

• Schiavi F.; Kobayashi K.; Moriguti T.; Nakamura E.; Pompilio M.; Tiepolo M.; Vannucci R. (literal)

Pagina inizio

• 541 (literal)

Pagina fine

• 561 (literal)

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

• 159 (literal)

Rivista

• Contributions to mineralogy and petrology (Rivista)

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

• In: Contributions To Mineralogy and Petrology, vol. 159 (4) pp. 541 - 561. Springer, 2010. (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• Bayerisches Geoinstitut, Universita ?t Bayreuth, 95440 Bayreuth, Germany The Pheasant Memorial Laboratory for Geochemistry and Cosmochemistry (PML), Institute for Study of the Earth's Interior, Okayama University at Misasa, Tottori-ken 682-0193, Japan Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Pisa, 56126 Pisa, Italy CNR, Istituto di Geoscienze e Georisorse, Sezione di Pavia, 27100 Pavia, Italy Dipartimento di Scienze della Terra, Universita` degli Studi di Pavia, 27100 Pavia, Italy (literal)

Titolo

• Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes. (literal)

Abstract

• During its 1800-year-long persistent activity the Stromboli volcano has erupted a highly porphyritic (HP) volatile-poor scoriaceous magma and a low porphyritic (LP) volatile-rich pumiceous magma. The HP magma is erupted during normal Strombolian explosions and lava effusions, while the LP one is related to more energetic paroxysms. During the March-April 2003 explosive activity, Stromboli ejected two typologies of juvenile glassy ashes, namely highly vesicular LP shards and volatile-poor HP shards. Their textural and in situ chemical characteristics are used to unravel mutual relationships between HP and LP magmas, as well as magma dynamics within the shallow plumbing system. The mantle-normalized trace element patterns of both ash types show the typical arc-lava pattern; however, HP glasses possess incompatible element concentrations higher than LP glasses, along with Sr and Eu negative anomalies. HP shards are generally characterized by higher Li contents (to ~20 ppm) and lower δ7Li values (+1.2 to −3.8?) with respect to LP shards (Li contents of 7-14 ppm and δ7Li ranging between +4.6 and +0.9?). Fractional crystallization models based on major and trace element compositions, combined with a degassing model based on open-system Rayleigh distillation and on the assumption that melt/fluidDLi 1, show that abundant (~30%) plagioclase precipitation and variable degrees of degassing can lead the more primitive LP magma to evolve toward a differentiated (isotopically lighter) HP magma ponding in the upper conduit and undergoing slow continuous degassing-induced crystallization. This study also evidences that in March 2003 Stromboli volcano poured out a small early volume of LP magma that traveled slower within the conduit with respect to later and larger volumes of fast ascending LP magma erupted during the April 5 paroxysm. The different ascent rates and cooling rates of the two LP magma batches (i.e., pre- and post-paroxysm) resulted in small, but dete (literal)

Editore

• Springer-Verlag (Editore)

Prodotto di

• Metodologie integrate per la conoscenza di processi e materiali geologici e del loro impatto sull'uomo e l'ambiente (TA.P04.014.002) (Modulo)
• Istituto di geoscienze e georisorse (IGG) (Istituto)

Autore CNR

• MASSIMO TIEPOLO (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes." (Insieme di parole chiave)

Incoming links:

Prodotto

• Istituto di geoscienze e georisorse (IGG) (Istituto)
• Metodologie integrate per la conoscenza di processi e materiali geologici e del loro impatto sull'uomo e l'ambiente (TA.P04.014.002) (Modulo)

Autore CNR di

• MASSIMO TIEPOLO (Unità di personale interno)

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

• Contributions to mineralogy and petrology (Rivista)

Editore di

• Springer-Verlag (Editore)

Insieme di parole chiave di

• Keywords of "Degassing, crystallization and eruption dynamics at Stromboli: trace element and lithium isotopic evidence from 2003 ashes." (Insieme di parole chiave)