Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research (Articolo in rivista)

Type

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

Label

• Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research (Articolo in rivista) (literal)

Anno

• 2004-01-01T00:00:00+01:00 (literal)

Alternative label

• Dekov V.M. (a,b), Savelli C. (a) (2004)
  Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research
  in Marine geology (Print)
  (literal)

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

• Dekov V.M. (a,b), Savelli C. (a) (literal)

Pagina inizio

• 161 (literal)

Pagina fine

• 185 (literal)

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

• doi:10.1016/S0025-3227(03)00355-4 (literal)

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

• 204 (literal)

Rivista

• Marine geology (Rivista)

Note

• ISI Web of Science (WOS) (literal)

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

• (a) Istituto di Geologia Marina, CNR, Via Gobetti 101, 40129, Bologna, Italy (b) Department of Geology and Paleontology, University of Sofia, 15 Tzar Osvoboditel Boulevard, 1000, Sofia, Bulgaria (literal)

Titolo

• Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research (literal)

Abstract

• Subduction-related volcanic activity in the Southeast Tyrrhenian back-arc basin has resulted in a large variety of calcalkaline rocks (ranging from arc tholeiitic to shoshonitic and rhyolitic composition), which were emplaced in both oceanic and continental crust. Hydrothermal systems in the SE Tyrrhenian Sea have leached these magmatic rocks, generating a wide range of oxyhydroxide and sulfide deposits. All the hydrothermal occurrences formed at much shallower depths than those from the mid-ocean ridges. Oxyhydroxide deposits (metalliferous sediments, crusts, and nodules) are almost pure hydrothermal formations with insignificant hydrogenetic and diagenetic contributions. They exhibit strong separation of Mn-rich and Fe-rich end members with Mn-rich occurrences dominant. Their geochemistry suggests a relative enrichment of Mn in the hydrothermal systems of the SE Tyrrhenian. The sulfides are Zn- and Pb-rich, but poor in Cu and relatively poor in Fe. This suggests either deep-seated magma chambers or boiling of the hydrothermal fluids beneath the seafloor. As a consequence: (1) Cu and a large proportion of the Fe are deposited as sulfides in the basement rocks and sediment cover; (2) the hydrothermal fluids become relatively enriched in Mn, Zn, and Pb. A number of accessory sulfosalts and selenides not typical of mid-ocean ridge massive sulfides are present. (literal)

Prodotto di

• Marine science institute (ISMAR) (Istituto)
• Processi geologici, dal vulcanismo alla sismicità, che portano alla formazione della crosta terrestre al di sotto dei mari (TA.P01.011.002) (Modulo)

Autore CNR

• CARLO SAVELLI (Unità di personale esterno)

Insieme di parole chiave

• Keywords of "Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research" (Insieme di parole chiave)

Incoming links:

Prodotto

• Marine science institute (ISMAR) (Istituto)
• Processi geologici, dal vulcanismo alla sismicità, che portano alla formazione della crosta terrestre al di sotto dei mari (TA.P01.011.002) (Modulo)

Autore CNR di

• CARLO SAVELLI (Unità di personale esterno)

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

• Marine geology (Rivista)

Insieme di parole chiave di

• Keywords of "Hydrothermal activity in the SE Tyrrhenian Sea: an overview of 30 years of research" (Insieme di parole chiave)