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@proceedings{1309618,
author = {Výravský, Jakub and Novák, Milan and Škoda, Radek},
booktitle = {13TH SGA BIENNAL MEETING NANCY - FRANCE},
keywords = {scandium; pretulite; hydrothermal alteration; granitic pegmatite},
language = {eng},
title = {Three types of secondary pretulite (ScPO4) from Dolní Bory pegmatites, Czech Republic - evidence for high Sc mobility in hydrothermal environment.},
year = {2015}
}
TY - CONF
ID - 1309618
AU - Výravský, Jakub - Novák, Milan - Škoda, Radek
PY - 2015
TI - Three types of secondary pretulite (ScPO4) from Dolní Bory pegmatites, Czech Republic - evidence for high Sc mobility in hydrothermal environment.
KW - scandium
KW - pretulite
KW - hydrothermal alteration
KW - granitic pegmatite
N2 - Three types of secondary pretulite (A, B and C) were identified from pegmatites in Dolní Bory, Czech Republic. All pretulite types formed by recrystallization of two different Sc-enriched precursor minerals: Sc,Y,U,P-rich zircon and complex W-Nb-Fe-Sc oxide. Formation of pretulite took place at approximately 350°C and 2 kbars. Pretulite A occurs as inclusions together with prevailing inclusions of xenotime-(Y) in recrystallized zircon. Pretulite B originated by recrystallization of the W-Nb-Fe-Sc oxide and its composition spans over almost whole ScPO4-ZrSiO4 solid solution. Pretulite C has been found away from the precursor minerals in association with pyrophyllite replacing andalusite. Composition of the fluids, which were poor in fluorine, allowed selective mobilization of Sc and its separation from HFSE.
ER -
VÝRAVSKÝ, Jakub, Milan NOVÁK a Radek ŠKODA. Three types of secondary pretulite (ScPO4) from Dolní Bory pegmatites, Czech Republic - evidence for high Sc mobility in hydrothermal environment. In \textit{13TH SGA BIENNAL MEETING NANCY - FRANCE}. 2015.
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