k 2015

Three types of secondary pretulite (ScPO4) from Dolní Bory pegmatites, Czech Republic - evidence for high Sc mobility in hydrothermal environment.

VÝRAVSKÝ, Jakub, Milan NOVÁK and Radek ŠKODA

Basic information

Original name

Three types of secondary pretulite (ScPO4) from Dolní Bory pegmatites, Czech Republic - evidence for high Sc mobility in hydrothermal environment.

Name in Czech

Tři typy sekundárního pretulitu (ScPO4) z pegmatitů v Dolních Borech, Česká republika - důkaz pro vysokou mobilitu skandia v hydrotermálním prostředí.

Authors

VÝRAVSKÝ, Jakub (203 Czech Republic, guarantor, belonging to the institution), Milan NOVÁK (203 Czech Republic, belonging to the institution) and Radek ŠKODA (203 Czech Republic)

Edition

13TH SGA BIENNAL MEETING NANCY - FRANCE, 2015

Other information

Language

English

Type of outcome

Prezentace na konferencích

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

France

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14310/15:00083658

Organization unit

Faculty of Science

Keywords (in Czech)

skandium; pretulit; hydrotermální alterace; granitický pegmatit

Keywords in English

scandium; pretulite; hydrothermal alteration; granitic pegmatite

Tags

International impact, Reviewed
Změněno: 16/11/2016 10:33, prof. RNDr. Milan Novák, CSc.

Abstract

V originále

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.