gabbro-diabase

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• Diabase — /ˈd …   Wikipedia

• 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

• diabase — diabasic, adj. /duy euh bays /, n. Petrol. 1. a fine grained gabbro occurring as minor intrusions. 2. Brit. a dark igneous rock consisting essentially of augite and feldspar; an altered dolerite. [1810 20; < F, equiv. to dia (error for di two) +… …   Universalium

• Diabase — Pour les articles homonymes, voir Diabase (homonymie). Diabase La diabase est une roche ignée mafique, holocristalline, analogue au basalte volca …   Wikipédia en Français

• 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

• diabase — noun Etymology: French, probably from Greek diabasis act of crossing over, from diabainein to cross over, from dia + bainein to go more at come Date: circa 1816 1. archaic diorite 2. chiefly British an altered basalt …   New Collegiate Dictionary

• diabase — di•a•base [[t]ˈdaɪ əˌbeɪs[/t]] n. pet a fine grained gabbro occurring as minor intrusions • Etymology: 1830–40; < F, =dia (error for di two) +base base I di a•ba′sic, adj …   From formal English to slang

• diabase — ˈdīəˌbās noun Etymology: French, from Greek diabasis act of crossing over, from diabainein to cross over, from dia + bainein to go more at come 1. archaic : diorite …   Useful english dictionary

• Wrangel Island — For the Alaskan island, see Wrangell Island. Natural System of Wrangel Island Reserve * UNESCO World Heritage Site …   Wikipedia

• Igneous rock — Geologic provinces of the world (USGS)   Shield …   Wikipedia

• Wichita Mountains — Range Elk Mountain, in the eastern Wichita Mountains …   Wikipedia