olivine gabbro

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• Gabbro — (pronEng|ˈɡæbrəʊ) is a dark, coarse grained, intrusive igneous rock chemically equivalent to basalt. It is a plutonic rock, formed when molten magma is trapped beneath the Earth s surface and cools into a crystalline mass. The vast majority of… …   Wikipedia

• gabbro — [ gabro ] n. m. • 1778; mot florentin, p. ê. du nom d un village toscan ♦ Géol. Roche éruptive composée de plagioclases et de pyroxène. ● gabbro nom masculin (de Gabbro, nom propre) Roche plutonique basique constituée essentiellement de… …   Encyclopédie Universelle

• Gabbro — Gab bro, n. [It.] (Geol.) A name originally given by the Italians to a kind of serpentine, later to the rock called {euphotide}, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and… …   The Collaborative International Dictionary of English

• gabbro — gabbroic /geuh broh ik/, gabbroitic, adj. gabbroid /gab royd/, adj. /gab roh/, n., pl. gabbros. Petrol. a dark granular igneous rock composed essentially of labradorite and augite. [ < It; akin to L glaber smooth] * * * Any of several medium or… …   Universalium

• Olivine — Olivingruppe Chemische Formel (Mg,Mn,Fe)2[SiO4] Mineralklasse Inselsilikate (Nesosilikate) siehe Einzelminerale (nach Strunz) siehe Einzelminerale (nach Dana …   Deutsch Wikipedia

• Olivine — For the river in New Zealand, see Olivine River. Olivine General Category Mineral Group Ch …   Wikipedia

• olivine — olivinic /ol euh vin ik/, olivinitic /ol euh vi nit ik/, adj. /ol euh veen , ol euh veen /, n. Mineral. any of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive green to gray green masses as an important constituent of basic… …   Universalium

• Gabbro — Echantillon de gabbro (Rock Creek Canyon, Est de la Sierra Nevada, California Echantillion de gabb …   Wikipédia en Français

• gabbro — [ gabrəʊ] noun (plural gabbros) Geology a dark, coarse grained plutonic rock consisting mainly of pyroxene, plagioclase feldspar, and often olivine. Derivatives gabbroic adjective gabbroid adjective Origin C19: from Ital., from L. glaber, glabr… …   English new terms dictionary

• euphotide — Gabbro Gab bro, n. [It.] (Geol.) A name originally given by the Italians to a kind of serpentine, later to the rock called {euphotide}, and now generally used for a coarsely crystalline, igneous rock consisting of lamellar pyroxene (diallage) and …   The Collaborative International Dictionary of English

• Muskox intrusion — Geologic map of the Muskox intrusion and adjacent geologic groups The Muskox intrusion is a layered intrusion in Nunavut, Canada. It is located 144 km (89 mi) northeast of Great Bear Lake and 90 km (56 mi) south of Kugluktuk… …   Wikipedia