Tourmaline of the elbaite-dravite series from an elbaite-subtype pegmatite at Blizna, southern Bohemia, Czech Republic (Articolo in rivista)

Type
Label
  • Tourmaline of the elbaite-dravite series from an elbaite-subtype pegmatite at Blizna, southern Bohemia, Czech Republic (Articolo in rivista) (literal)
Anno
  • 1999-01-01T00:00:00+01:00 (literal)
Alternative label
  • Novak M. 1; Selway J.B. 2; Cerny P. 2; Hawthorne F.C. 2; Ottolini L. 3; (1999)
    Tourmaline of the elbaite-dravite series from an elbaite-subtype pegmatite at Blizna, southern Bohemia, Czech Republic
    in European journal of mineralogy (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Novak M. 1; Selway J.B. 2; Cerny P. 2; Hawthorne F.C. 2; Ottolini L. 3; (literal)
Pagina inizio
  • 557 (literal)
Pagina fine
  • 568 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 11 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. Moravian Museum, Dept Mineral & Petrog, CZ-65937 Brno, Czech Republic; 2. Univ Manitoba, Dept Geol Sci, Winnipeg, MB R3T 2N2, Canada; 3. CNR, Ctr Studio Cristallochim & Cristallog, I-27100 Pavia, Italy; (literal)
Titolo
  • Tourmaline of the elbaite-dravite series from an elbaite-subtype pegmatite at Blizna, southern Bohemia, Czech Republic (literal)
Abstract
  • The elbaite-subtype pegmatite at Blizna, near Cerna v Posumavi in southern Bohemia, Czech Republic, intrudes dolomite-calcite marble. It can be divided into two distinct units, unit A and unit B, and has a narrow exocontact zone along the edge of the pegmatite. The crystallization sequence of tourmaline from unit A is Ca-rich schorl-elbaite --> Ca-rich elbaite-schorl-dravite --> Mn-rich elbaite --> Mn-rich liddicoatite --> liddicoatite-elbaite, typical of tourmaline from elbaite-subtype pegmatites. The crystallization sequence of tourmaline from unit B is Na-rich uvite --> Ca-rich schorl-elbaite-dravite --> Ca-rich Mg-bearing elbaite --> (Ca, Mn)-rich elbaite --> Mn-rich liddicoatite-elbaite --> Na-rich liddicoatite. Tourmaline from the exocontact ranges from Na-rich uvite --> Ca-rich dravite --> dravite-elbaite --> Ca-rich Mg-bearing elbaite --> liddicoatite-elbaite. The intermediate elbaite-schorl-dravite from unit A and schorl-elbaite-dravite from unit B are characterized by low F, moderate Mn and high Ti and Ca contents. The Mg-bearing elbaite from unit B and the exocontact is characterized by low Fe, moderate Ti, and high Ca and F contents. The dravite-elbaite from the exocontact is characterized by low Fe, Mn, Ti, Ca and F contents. The intermediate elbaite-schorl-dravite and elbaite-dravite solid-solutions crystallized as a result of mixing of (Ca, Mg)-rich fluids from the dolomite-calcite marble host-rock and exsolved (Na, Al, Li, F, B)-rich pegmatitic fluids. The factors controlling formation of elbaite-dravite in rocks may be summarized as follows: high activities of Li, Mg, Al and B, high Li/Mg ratio in the parent medium, acidic conditions with pHacidic conditions with pH
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it