hornblende

Rock type: 
Age: 
740 millions years

Россия, Приморский край, полуостров Краббе, скала "Спящий дракон". Опорное обнажение, разрез гранитизированных габбро сусловского комплекса. Гранитизация с образованием гнейсовидных полосчатых гибридных пород с плагиоклаз(андезин)-роговообманково-биотиткварцевыми парагенезисами и реликтовой апогаббровой структурой (вплоть до образования мигматитов с преобладанием плагиоклаза и кварца в лейкосоме).

Rock type: 
Age: 
260 millions years

Россия, Приморский край, бухта Алеут. Роговообманковые и биотит-роговообманковые кварцевые диориты первой фазы Седанкинского гранодиорит-гранитного комплекса.

Rock type: 
Age: 
98 millions years

Russia, Khabarovsk territory, mount Shchebenchikha. Light gray andesite-dacites with porphyry plagioclase and hornblende. Very strongly altered. Plagioclase is often replaced by carbonates. Hornblende is opacitized. Cretaceous, cenomanian.

Rock type: 
Age: 
61 millions years

Russia, Khabarovsk Territory, river valley Podokhorenok. Andesite. Horizontal cover. Thickness - 300 meters. Massive texture, aphyric structure. Phenocrysts: plagioclase, hornblende, rarely pyroxene. Paleocene. Danian. Selandian.

Rock type: 
Age: 
94 millions years

Russia, Khabarovsk Territory, river valley Ko. Grandiorite massif. Bachelazskiy complex. Granodiorites are medium-grained, gray. Consist: plagioclase - 37-54%, K-spar - 8-27%, quartz - 18-30%, biotite - 8-13%, hornblende - 4-12%. Accessory minerals: magnetite, apatite, ortit, zircon, monazite. Massive texture. Hypidiomorphic grain structure. Upper Cretaceous. Definitions of absolute age: 86-103 million years.

Rock type: 
Age: 
153 millions years

Russia, Amur region, Kolbachi Creek Valley. Contact granodiorites (light) and lamproite dike (dark). Porphyry biotite-hornblende granodiorites. Granodiorites form a large Haiktinsky massif. A characteristic feature of granodiorites is the greenish color of plagioclase and the rocks themselves, due to the processes of chlorination, epidotization and carbonatization, accompanied by co-securitization and seritization of plagioclase. Pozdnestanovoy complex. Paleoproterozoic. Lamproite dike - the third phase of the Amujikan complex. Upper Jurassic.

Rock type: 
Age: 
1700 millions years

Russia, Amur region, Haikta river valley. Porphyry biotite-hornblende granodiorites. Granodiorites form a large Haiktinsky massif. A characteristic feature of granodiorites is the greenish color of plagioclase and the rocks themselves, due to the processes of chlorination, epidotization and carbonatization, accompanied by co-securitization and seritization of plagioclase. Pozdnestanovoy complex. Paleoproterozoic.

Rock type: 
Age: 
1700 millions years

Russia, Amur region, Haikta river valley, Berezite gold mine. Porphyry biotite-hornblende granodiorites. Granodiorites form a large Haiktinsky massif. A characteristic feature of granodiorites is the greenish color of plagioclase and the rocks themselves, due to the processes of chlorination, epidotization and carbonatization, accompanied by co-securitization and seritization of plagioclase. Pozdnestanovoy complex. Paleoproterozoic.

Rock type: 
Age: 
115 millions years

Russia, Amur Region, Mikhailovsky Pillars. Andesites - dark gray, greenish-gray rocks, with a massive, fluid texture. Porphyry phenocrysts up to 20%. Consist: andesine, hornblende, augite. Bulk - volcanic glass. Lower Cretaceous. Determination of absolute age - 115 million years.

Rock type: 
Age: 
115 millions years

Russia, Amur Region, Sergeyevskiye Pillars. Andesites - dark gray, greenish-gray rocks, with a massive, fluid texture. Porphyry phenocrysts up to 20%. Consist: andesine, hornblende, augite. Bulk - volcanic glass. Lower Cretaceous. Determination of absolute age - 115 million years.