batholith

Portugal, Sintra, Castelo dos Mouros. The Sintra Massif or batholith is a circular intrusion. Biotite Granites. Upper Cretaceous.

Portugal, Sintra, Parque e Palácio Nacional da Pena. The Sintra Massif or batholith is a circular intrusion. Biotite Granites. Upper Cretaceous.

Portugal, Sintra, Castelo dos Mouros. The Sintra Massif or batholith is a circular intrusion. Biotite Granites. Upper Cretaceous.

Russia, Khabarovsk Territory, Tordoki-Yani Mountain. Biotite granites containing cordierite. Medium grained, coarse grained. Form batholith. Consist: oligoclase or andesine - 25-60%, K-spar - 10-45%, quartz - 18-32%, biotite - 8-25%. Accesory: apatite, zircon, sphen, monazite, garnet, tourmaline, ortit. Characterized by the presence of cordierite. Low Cretaceous.