Origin of reverse compositional and textural zoning in granite plutons by localized thermal overturn of stratified magma chambers

Abstract

This study integrates gravimetry and thermalmodelling with petrology, U-Th-Pb monazite and zircon geochronology and whole-rock geochemistry of the early Carboniferous Říčany Pluton, BohemianMassif, in order to discuss the origin of compositional and textural zoning in granitic plutons and complex histories of horizontally stratified, multiply replenished magma chambers.

Keywords

• crystal mush
• geochemistry
• granite
• magma chamber
• pluton
• compositional and textural zoning