Dyke granodiorite porphyry. Sikhote-Alin series of Eocene subintrusions. Eocene. The dyke has a length of about 800 m. The maximum thickness is 150 m. It has a submeridional strike (Az. 350 degrees). Az pad. 80 degrees. Angle of 70-80 degrees. Wedges out on both flanks splitting into several small bodies. Pledged by a series of faults, traceable after wedging out of the dyke in siltstones. In the upper part, granodiorites are intensively weathered to a completely disintegrated weathering crust.
Dyke diorite porphyrite. Sikhote-Alin series of Eocene subintrusions. Eocene. The thickness of the dikes varies from 1 to 20 m, sometimes reaching 70 m, the length rarely exceeds 500 m. The studied contacts of the dikes have steep angles (70-80 degrees) of incidence, and contact alteration are expressed in weak keratinization of rocks to a width of 5-10 cm. Consist: phenocrysts 20-25% - plagioclase, hornblende; the bulk 75-80% - plagioclase 30-35%, dark-colored mineral (hornblende?) 15-20%, quartz up to 1%. Accessory: apatite, sphene. δπ₽2
Russia, Amur region, Haikta river valley, Berezite gold mine. Granodiorites in a pit wall with lamproite dikes (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.
