Dyke

Россия, Хабаровский край, долина реки Седьмая вторая. Кварцевый диорит. По всей видимости дайка. На геологической карте не обозначена. Возраст скорее всего - поздний мел. Мелкая равномерно рассеяная вкрапленность пирита.

Russia, Khabarovsk Territory, valley of the Seventh 2nd river. Quartz diorite. Most likely a dike. Not indicated on the geological map. The age is most likely late Cretaceous. Fine, evenly dispersed dissemination of pyrite.

Russia, Magadan region, left side of the Duck river. Quartz-albite diorite porphyrite with quartz-albite veins. These are the famous Ducks dykes. Dyke №7. The dyke is a slab-like body with a capacity of 0.5 m in the East to 3.5 m in the West, accompanied by apophyses that run parallel to the sedimentary rocks (lower Jurassic siltstone). It is traced to a depth of 250 meters. Xenoliths are rare. Sometimes there are intersecting, until the disappearance of dykes.

Russia, Magadan region, Kulu river. Rhyolite porphyrites dykes in pelite schists ( Tasskaya series). Schists - upper Permian. Rhyolite porphyrites - upper Jurassic.

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.

Russia, Khabarovsk Territory. Dyke pyroxenites. Contains impregnation of chalcopyrite. Upper Cretaceous.

Russia, Khabarovsk Territory. Dyke alaskite granite. Paleocene. Consist: quartz 30-38%, K-spar 40-55%, plagioclase 15-25%, biotite up to 3%. Plagioclase - oligoclase, rare - oligoclase-albite, albite. Accessory: magnetite, zircon, apatite, monazite. Silicate analysis: SiO₂ 74-77%, TiO₂ 0.1-0.2%, Al₂O₃ 13-14%, Fe₂O₃ 0.3-0.5%, FeO 0.7-1.6%, MnO 0.01-0.04%, MgO 0.1-0.3%, CaO 0.2-0.5%, Na₂O 2.7-3.4%, K₂O 4%, SO₃ 0%, P₂O₅ 0-0.03%, CO₃ 0-0.4%.

Spain, Catalonia, Carrer Josep Ensesa. Episienites (the last phase of granodiorites, extremely depleted of quartz). Black dyke - lamproite. Upper Carboniferous - Low Permian.

Spain, Catalonia, Carrer Josep Ensesa. Dyke lamproite (black) in the episienites (the last phase of granodiorites, extremely depleted of quartz). Upper Carboniferous - Low Permian.

Spain, Catalonia, Platja d'Aro. On the right is granodioorite porphyry. Left (reddish) - Episienites (the last phase of granodiorites, extremely depleted of quartz). Black dyke (right) - lamproite. Upper Carboniferous - Low Permian.

Spain, Catalonia, Carrer Josep Ensesa. On the left is granodioorite porphyry. On the right  and first plan (reddish) -  Episienites (the last phase of granodiorites, extremely depleted of quartz). Black dyke - I'm not sure, I read what it is tonalitic porphyry.... Big doubt. Maybe lamproite. Upper Carboniferous - Low Permian.