World rocks photo collection
Portugal, Praia das Maçãs. Limestones. Cretaceous. Upper Aptian, Albian, Cenomanian, Turonian.
Portugal, Praia das Maçãs. Limestones, sandstones, marls and dolomites. Cretaceous. Upper Aptian, Albian, Cenomanian, Turonian. In the third photo - I do not know what it is. Basaltic lava maybe?
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.
Granite. 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.
Russia, Khabarovsk territory, Sikhote-Alin range, 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.