Accessory minerals of Ti,Nb,Ta and W as indicators of geochemical evolutions in magmatic rocks and related and hydroth. systems of the Bohem. Ma.

Project Identification
IAA3046002
Project Period
1/2000 - 1/2002
Investor / Pogramme / Project type
Academy of Sciences of the Czech Republic
MU Faculty or unit
Faculty of Science
Cooperating Organization
Institute of Rock Structure and Mechanics of the ASCR, v. v. i.

Accesory minerals of Ti, Nb, Ta and W (rutile, columbite-tantalite, wolframite, titanite) have become valuable indicators of geochemical evolution in the terms Fe/Mn and Nb/Ta ratios particularly in magmatic rocks and in associated hydrotermal systems. The proposed project will be a contribution to understanding of compositional evolution, geochemical fractionation and enrichment of some economic elements (e.g., Nb, Ta, W) in the rocks such as leucocratic granites and associated roks transitional between magmatic and hydrothermal stage, and hydrothermal veins, located particularly in the regions of Saxothuringicum, Moldanubian Zone and Bohemicum. Accessory minerals will also be utilized as indicators of subsequent hydrothermal overprint of the magmatic stage in some minerals and, moreover, as indicators of fluid activity (e.g., F, 02) in the parent rock.

Publications

Total number of publications: 8


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