Record details

Title
    Zn-rich ilmenite and pseudorutile: subsolidus products in peraluminous granites of the Melechov Massif, Moldanubian Batholith, Czech Republic
Author
    Matějka, Dobroslav
    Procházka, Václav
    Uher, Pavel
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Neues Jahrbuch für Mineralogie, Abhandlungen
Vol./nr.
    Roč. 187, č. 3
Pages
    15
Year
    2010
Thesaurus term
    Czech Republic
    Melechov Massif
    Moldanubian Batholith
    pseudorutile
    S-type granite
    subsolidus granite processes
    Zn-rich ilmenite
Keyword
    Batholith
    Czech
    Granites
    Ilmenite
    Massif
    Melechov
    Moldanubian
    Peraluminous
    Products
    Pseudorutile
    Republic
    Subsolidus
    Zn-rich
Abstract (in english)
   In Hercynian peraluminous S-type granites of the Melechov Massif (Moldanubian Batholith, Czech Republic), Zn-rich ilmenite with up to 20 wt. % ZnO formed mainly as a product of subsolidus alteration of biotite into muscovite. Ilmenite usually fills the cleavage of muscovitized biotite. It is often accompanied by a TiO2 phase, Zn-rich pseudorutile and compositions transitional between ilmenite and pseudorutile (Fe23+Ti3O9). At the ~1 mým scale biotite alteration produced very fine intergrowths with muscovite (+-chlorite). Subsolidus alteration of primary magmatic ilmenite with less than 0.5 wt. % ZnO led to Zn-rich oxide/oxy-hydroxide phases (<= 5.3 wt. % ZnO), characterized by increasing Fe oxidation and decreasing Fe content (down to 15 wt. % Fe2O3).
Contributor
    UK Praha, Přírodovědecká fakulta
Contributor code
    UK, PřF
Source format
    R
Import date
    8. 8. 2012