alkali-basalt

См. также в других словарях:

• Basalt — For the World War II raid, see Operation Basalt. For the cities, see Basalt, Colorado and Basalt, Idaho. Basalt Igneous Rock Composition …   Wikipedia

• basalt — basaltic, basaltine /beuh sawl tin, tuyn/, adj. /beuh sawlt , bas awlt, bay sawlt/, n. the dark, dense igneous rock of a lava flow or minor intrusion, composed essentially of labradorite and pyroxene and often displaying a columnar structure.… …   Universalium

• Basalt — Ba|sạlt 〈m. 1; Geol.〉 schwärzl. Vulkangestein in charakterist. säulenförmigen Absonderungen [<lat. basaltes, älter basanites, nach der Landschaft Basan im Osten Palästinas] * * * Ba|sạlt [gleichbed. lat. basaltes (griech. basaníte̅s =… …   Universal-Lexikon

• Ocean island basalt — Piton de la Fournaise erupting OIB in 2004 Ocean island basalts or OIBs are basaltic rocks found on many volcanic islands away from tectonic plate boundaries typically associated with hot spots. Islands hosting ocean island basalts lie always… …   Wikipedia

• Picrite basalt — or oceanite from the Piton de la Fournaise Picrite basalt, picrobasalt or oceanite[citation needed] is a variety of high magnesium olivine basalt that is very rich in the miner …   Wikipedia

• Tholeiitic basalt — is an igneous rock, a type of basalt. Like all basalt, the rock type is dominated by clinopyroxene plus plagioclase, with minor iron titanium oxides. [http://micro.magnet.fsu.edu/primer/techniques/polarized/gallery/pages/basalttholeiiticsmall.html… …   Wikipedia

• igneous rock — Any of various crystalline or glassy, noncrystalline rocks formed by the cooling and solidification of molten earth material (magma). Igneous rocks comprise one of the three principal classes of rocks, the others being metamorphic and sedimentary …   Universalium

• Geology of Tasmania — Tasmania has a varied geological history, with the world s biggest exposure of diabase, or dolerite. Rocks from the Neoproterozoic, Paleozoic and Mesozoic time periods appear. It is one of the few southern hemisphere areas glaciated during the… …   Wikipedia

• Hualālai — View of Hualālai over 1800 lava flow Elevation 8,271 ft (2,521 m)  …   Wikipedia

• North Atlantic Igneous Province — The North Atlantic Igneous Province (NAIP) is a large igneous province estimated to be at least 1.3×106 km2 in area and 6.6×106 km3 in volume.[1] Geographically, the NAIP makes up all of the North Atlantic Ocean as well as the Paleocene and… …   Wikipedia

• Nephelinite — lava (grey) containing a xenolith of peridotite (yellow), Kaiserstuhl, Germany. Nephelinite is a fine grained or aphanitic igneous rock made up almost entirely of nepheline and clinopyroxene (variety augite). If olivine is present, the rock may… …   Wikipedia