Podrobnosti záznamu

    Thorium mineralization in alkali feldspar syenite of the nordmarkite-type dyke in the Třevíč Pluton
    Hlisnikovský, Karel
    Sulovský, Petr
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Mitteilungen der Österr. Mineral. Gesellschaft
    Roč. 146, č. September
Výraz tezauru
    LREE fractionation
    thorium minerals
    Třebíč Pluton
Klíčové slovo
Abstrakt (anglicky)
   The nordmarkite from Vaneč has been strongly ferruginised; ferruginization has caused only local changes to the minerals of U and Th, originally represented by thorite and minerals of the monazite group. The late magmatic to postmagmatic solutions locally dissolved the primary accessory minerals, especially monazite group minerals. The neoformation of (silico)phosphates and fluorocarbonates of REE was in places connected with fractionation within the LREE group: while all primary monazite was Ce-dominant, the secondary REE minerals are in places La-dominant. The fact that the bulk REE pattern does not differ from the REE patterns of durbachites seems to imply that the ferruginization, visibly affecting the the rock very strongly, did not led to extensive migration of REE or Th.
    MU Brno, Přírodovědecká fakulta
Kód přispěvatele
    MU, PřF
Zdrojový formát
Datum importu
    8. 8. 2012