Petrology, geochemistry and zircon age for redwitzite at Abertamy, NW Bohemian Massif (Czech Republic) : tracing the mantle component in Late Variscan Intrusions.

Abstract

Compositional linear trends from redwitzites to granites at Abertamy indicate crystal fractionation (opx and plg) and magma mixing of granitic and mantle- derived mafic magma during Variscan plutonism (322 Ma)

Keywords

• fractional crystallization
• I/S type of granite
• magma mixing
• redwitzite
• Pb-evaporization age
• Variscan magmatism
• Krušné hory