Record details

Title
    Significance of Clinopyroxene-Olivine-Plagioclase Fractional Crystallization in the Formation of Plutonic Rocks
Statement of responsibility
    Jana Svobodová, Jan Košler
Author
    Košler, Jan, 1965-
    Svobodová, Jana
Language
    anglicky
Source title - serial
    Acta Universitatis Carolinae, Geologica
Vol./nr.
    Vol. 40, no. 1
Pages
    p. 33-54
Year
    1996
Notes
    4 tab., 6 diagr., 22 bibl.
    Zkr. název ser.: Acta Univ. Carol., Geol.
Subject group
    chemismus hornin
    domažlické krystalinikum
    frakcionace chemická
    horniny plutonické
    kdyňský masiv
    klinopyroxeny
    krystalizace frakcionovaná
    model matematický
    olivín
    petrogeneze
    plagioklasy
Geographical name
    Česká republika
Keyword
    Clinopyroxene-Olivine-Plagioclase
    Crystallization
    Formation
    Fractional
    Plutonic
    Rocks
    Significance
Abstract (in english)
   The composition of plutonic rocks depends on the proportions and compositions of cumulus phases and interstitial liquid. For different cumulus compositions it is possible to calculate different solid - liquid proportions from FeO/MgO ratios in the rocks and their ferromagnesian minerals. Also, it is possible to calculate changes in FeO, MgO, CaO and Al2O3 contents in the liquid during fractional crystallisation of the cumulus phases. By comparing calculated trends to those observed in the real rocks, the most likely cumulus composition can be estimated. The proposed model has been tested on a suite of basic rocks from the Kdyně complex of the Bohemian Massif
Contributor
    Česká geologická služba
Contributor code
    ČGS (UNM)
Source format
    U
Entered date
    21. 2. 2008
Import date
    8. 8. 2012