zircon

Rock type: 
Age: 
230 millions years

Russia, Khabarovsk Territory, Yagdynya river. Biotite Granites. Form an massif of 850 square kilometers. Consist: oligolclase - 24-32%, microcline - 24-45%, quartz - 15-29%, biotite - 4-11%. Plagioclase forms sericite and albite (auto-metasomatism). Chlorite is formed by biotite. Accessory: sphene, zircon, apatite. Definitions of absolute age (K): 207, 230, 235 million years. Upper Triassic.

Rock type: 
Age: 
230 millions years

Russia, Khabarovsk Territory, Yagdynya river. Biotite Granites. Form an massif of 850 square kilometers. Consist: oligolclase - 24-32%, microcline - 24-45%, quartz - 15-29%, biotite - 4-11%. Plagioclase forms sericite and albite (auto-metasomatism). Chlorite is formed by biotite. Accessory: sphene, zircon, apatite. Definitions of absolute age (K): 207, 230, 235 million years. Upper Triassic.

Rock type: 
Age: 
230 millions years

Russia, Khabarovsk Territory, Yagdynya river. Biotite Granites. Form an massif of 850 square kilometers. Consist: oligolclase - 24-32%, microcline - 24-45%, quartz - 15-29%, biotite - 4-11%. Plagioclase forms sericite and albite (auto-metasomatism). Chlorite is formed by biotite. Accessory: sphene, zircon, apatite. Definitions of absolute age (K): 207, 230, 235 million years. Upper Triassic.

Rock type: 
Age: 
75 millions years

Russia, Primorsky Territory, Mount Pidan. Granodiorite massif. The massif has the shape of an oval elongated in a sub-latitudinal direction. Area 80 km square. Contacts with host rocks - 60-90 degrees. Granodiorites biotite-hornblende, gray, dark gray, medium-grained, fine-grained. Consist: plagioclase 50-60%, quartz 10-15%, orthoclase up to 10%, biotite 10-12%, hornblende 5-15%. Accessory: apatite, zircon, rarely orthite. Upper Cretaceous.

Rock type: 
Age: 
251 millions years

Russia, Altai, rock "Four brothers". Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Rock type: 
Age: 
251 millions years

Russia, Altai, mount Round. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Rock type: 
Age: 
251 millions years

Russia, Altai, mount Round. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Rock type: 
Age: 
251 millions years

Russia, Altai, mount Tserkovka. Belokurikhinsky granite massif. Porphyry biotite granites. Medium grained. Porphyry phenocrysts - microcline. Consist: microcline - 35-65%, plagioclase - 10-30%, quartz 20-30% biotite - 4-7%. Accessory: magnetite, zircon, apatite, muscovite. Upper Permian - Low Triassic.

Rock type: 
Age: 
120 millions years

Russia, Magadan region, cape Chirikova. Magadan massif of granodiorites. Size - 40 * 45 km. Granodiorites hornblende-biotite. Consist: andesine 50%, anorthoclase 15%, quartz 20%, biotite 7%, green hornblende 5%, monoclinic pyroxene 0,5%. Accessory: chlorite, epidote, zoisite, sphene, zircon, apatite, magnetite. Low Cretaceous.

Rock type: 
Age: 
120 millions years

Russia, Magadan region, cape Chirikova. Magadan massif of granodiorites. Size - 40 * 45 km. Granodiorites hornblende-biotite. Consist: andesine 50%, anorthoclase 15%, quartz 20%, biotite 7%, green hornblende 5%, monoclinic pyroxene 0,5%. Accessory: chlorite, epidote, zoisite, sphene, zircon, apatite, magnetite. Low Cretaceous.