stock

Rock type: 
Age: 
100 millions years

Россия, Хабаровский край, верховья ручья Закуми (правый приток реки Матай). Шток перидотитов верхнемелового возраста. Перидотиты черные, иногда с зеленоватым оттенком, очень плотные мелкокристаллические массивные. Породы сложены серпофитом, хризотилом и антигоритом с реликтовыми зернами оливина. Пересекающиеся тонкие прожилки магнетита и волокнистого хризотила обусловливают решетчатую структуру.

Rock type: 
Age: 
97 millions years

Russia, Khabarovsk Territory. Stock diorite porphyrites. Butakano-Churkinsky complex. Greenish-gray and dark gray with a greenish tint porphyry rocks with a different number of plagioclase phenocrysts in the microcrystalline bulk consisting of a plagioclase sheet, chlorinated biotite flakes and hornblende. Plagioclase phenocrysts are represented by zonal andesine tablets, sometimes albitized along cracks. The hornblende, also present in phenocrysts, is represented by idiomorphic grains 1 × 4 mm in size.

Rock type: 
Age: 
97 millions years

Russia, Khabarovsk Territory. Stock diorite porphyrites. Butakano-Churkinsky complex. Greenish-gray and dark gray with a greenish tint porphyry rocks with a different number of plagioclase phenocrysts in the microcrystalline bulk consisting of a plagioclase sheet, chlorinated biotite flakes and hornblende. Plagioclase phenocrysts are represented by zonal andesine tablets, sometimes albitized along cracks. The hornblende, also present in phenocrysts, is represented by idiomorphic grains 1 × 2.5 mm in size. In the second photo, magnification * 10. Upper Cretaceous.

Rock type: 
Age: 
97 millions years

Russia, Khabarovsk Territory. Stock diorite porphyrites. Butakano-Churkinsky complex. Greenish-gray and dark gray with a greenish tint porphyry rocks with a different number of plagioclase phenocrysts in the microcrystalline bulk consisting of a plagioclase sheet, chlorinated biotite flakes and hornblende. Plagioclase phenocrysts are represented by zonal andesine tablets, sometimes albitized along cracks. The hornblende, also present in phenocrysts, is represented by idiomorphic grains 1 × 2.5 mm in size. In the second photo, magnification * 10. Upper Cretaceous.

Rock type: 
Age: 
120 millions years

Gray quartz diorite. Stock. Iorokhanskiy complex. Consist: andesine 50-83%, hornblende 6-45%, quartz up to 16%, biotite - 1-4%, pyroxene up to 4%. qdК1