plagioclase

Россия, Хабаровский край, водораздел реки Подохоренок и Вторая Седьмая. Гранитный массив. Биотитовые двуслюдяные граниты - серые крупнозернистые и среднезернистые породы с гипидиоморфной структурой. Основными породообразующими минералами являются калиевый шпат (30-50%), плагиоклаз (10-35%), темноцветные минералы (5-10%) и кварц (20-35%). Акцессорные минералы представлены апатитом, цирконом и рудными минералами. Вторичные минералы - мусковит, хлорит и серицит. Спектральный анализ гранитов выявил следующие примесные элементы; Mn, Ni, Ti, V, Cr, Cu, Pb, реже Mo, Sn и Zr.

Russia, Khabarovsk Territory, river valley Podokhorenok. Basalt. Horizontal cover. Thickness - 300 meters. In porphyry phenocrysts: plagioclase, pyroxene, olivine. Paleocene. Danian. Selandian.

Russia, Khabarovsk Territory, river valley Podokhorenok. Andesite-basalt, basalt. In the upper part of the rock there is andesite-basalt, in the lower part it is basalt. Macrophoto - the first andesite-basalt, the last - basalt Horizontal cover. Thickness - 300 meters. In porphyry phenocrysts: plagioclase, pyroxene, olivine. Paleocene. Danian. Selandian.

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

Russia, Khabarovsk Territory, river valley Podokhorenok. Andesite-basalt. Horizontal cover. Thickness - 300 meters. In porphyry phenocrysts: plagioclase, pyroxene, olivine. Paleocene. Danian. Selandian.

Russia, Khabarovsk Territory, river valley Podokhorenok. Andesitic porphyrites form a horizontal cover. Thickness - 300 meters. Porphyry phenocrysts - plagioclase. Paleocene. Danian. Selandian.

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.

Russia, Komi Republic, Subpolar Ural, Big Lemva river. Pink-gray, fine-grained, subalkaline biotite granites. Lemvinsky granite massif. Consist: quartz - 29%, plagioclase - 23%, K-spar - 47%, biotite - 1%. Accesory: zircon, magnetite, sphen, apatite, ortit, ilmenite. Neoproterozoic.

Russia, Komi Republic, Subpolar Ural, Big Lemva river. Pink-gray, fine-grained, subalkaline biotite granites. Lemvinsky granite massif. Consist: quartz - 29%, plagioclase - 23%, K-spar - 47%, biotite - 1%. Accesory: zircon, magnetite, sphen, apatite, ortit, ilmenite. Neoproterozoic.

Russia, Republic of Buryatia, Taksimo. Brownish-lilac and greenish large-pebble conglomerates with interbeds of sandstones. Pebbles and boulders in conglomerates up to 80 centimeters in size. Formed by sandstones, shales, granites and various effusive rocks. Sandy cement is metamorphosed to a saussurite-sericite aggregate, with feldspars, quartz, epidote and iron hydroxides. The interlayers of sandstones are green, greenish-gray, polymictic and quartz. Polymictic sandstones are formed by quartz, plagioclase and potassium feldspar. Mukhtunnaya series. Thickness 1300 meters.