GEOCHEMICAL AND STRUCTURAL EVOLUTION OF MICAS IN THE ROZNA AND DOBRA-VODA PEGMATITES, CZECH-REPUBLIC (Articolo in rivista)

Type
Label
  • GEOCHEMICAL AND STRUCTURAL EVOLUTION OF MICAS IN THE ROZNA AND DOBRA-VODA PEGMATITES, CZECH-REPUBLIC (Articolo in rivista) (literal)
Anno
  • 1995-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/BF01162587 (literal)
Alternative label
  • P. Cerny 1; J. Stanek 2; M. Novak .1; H. Baadsgaard 3; M. Rieder 4; L. Ottolini 6; M. Kavalova 5; R. Chapman 1 (1995)
    GEOCHEMICAL AND STRUCTURAL EVOLUTION OF MICAS IN THE ROZNA AND DOBRA-VODA PEGMATITES, CZECH-REPUBLIC
    in Mineralogy and petrology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P. Cerny 1; J. Stanek 2; M. Novak .1; H. Baadsgaard 3; M. Rieder 4; L. Ottolini 6; M. Kavalova 5; R. Chapman 1 (literal)
Pagina inizio
  • 177 (literal)
Pagina fine
  • 201 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 55 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1-3 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 Department of Geological Sciences, University of Manitoba, Winnipeg, Canada; 2 Department of Mineralogy, Petrology and Geochemistry, Masaryk University, Brno, Czech Republic; 3 Department of Geology, University of Alberta, Edmonton, Alberta, Canada; 4 Institute of Geological Sciences, Charles University, Praha, Czech Republic; 5 Department of Mineralogy, Geochemistry and Crystallography, Charles University, Praha, Czech Republic; 6 CNR Centro di Studio per la Cristallochimica e la Cristallografia, Pavia, Italy (literal)
Titolo
  • GEOCHEMICAL AND STRUCTURAL EVOLUTION OF MICAS IN THE ROZNA AND DOBRA-VODA PEGMATITES, CZECH-REPUBLIC (literal)
Abstract
  • The chemistry, structural parameters, polytypism, optical properties and Rb-Sr isotopes were examined in II to 60 samples of biotite, muscovite and lepidolite from the pegmatites at Rozna (the type locality of lepidolite; 323 +/- 4Ma) and Dobra Voda (306 +/- 9Ma) in western Moravia. At both localities, early endocontact biotite is followed inwards by muscovite and lepidolite, which is concentrated in and around the core. At Rozna, a 1M lepidolite follows after 2M(1) muscovite but all later generations of lepidolite are 2M(2), close to Tri(50) Ply(50) and in part associated with muscovite 2M(1). At Dobra Voda, all lepidolite types are 1M and free of muscovite, and the late varieties approximate Tri(30) Ply(70). At both localities, a trend of increasing mu HF is indicated during the progress of mica crystallization, culminating in precipitation of topaz. Polytypism of lepidolite is not correlatable with any compositional or growth feature, or their combination. Throughout the mica crystallization, Rb/Cs decreases but K/Rb becomes reversed after an initial decrease. Boron is partitioned preferentially into muscovite (up to 1.10 wt. % B2O3) but Be, Zn, Mn and Sc are enhanced in lepidolite. A slight increase in Fe, Ba and Cl in the last generation of lepidolite might be possibly due to mixing of residual pegmatite fluids with metamorphic pore solutions. (literal)
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