Publisher © Czech Geological Survey, ISSN: 2336-5757 (online), 0514-8057 (print)

Evolution of two-mica granites in tbe area between Besednice and Nové Hrady

 

Miloš René

Geoscience Research Reports 33, 2000 (GRR for 1999), pages 192–195

Full text (PDF, 0.19 MB)

 

Abstract

In the area between Besednice and Nové Hrady two-mica granites of the Moldanubian batholith are represented by an equigranular subtype Mrákotín and a porphyritic subtype Číměř. Both subtypes represent variable differentiated monzogranites or syenogranites. Two mica granites of this area are usually peraluminous granites, which can be classified as high-K granites of the S-type. In relation to average composition of the continental crust two-mica granites of the area between Besednice and Nové Hrady are enriched in Rb and Th and depleted by Sr and Yb.