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gabbro
(redirected from gabbroic)

    Also found in: Encyclopedia, Wikipedia, Hutchinson 0.03 sec.
gab·bro  (gbr)
n. pl. gab·bros
A usually coarse-grained igneous rock composed chiefly of calcic plagioclase and pyroxene. Also called norite.
[Italian, perhaps from Latin glaber, bald, beardless.]
gab·broic (g-brk), gabbroid (gbroid) adj.
gabbro [ˈgæbrəʊ]
n pl -bros
(Earth Sciences / Minerals) a dark coarse-grained basic plutonic igneous rock consisting of plagioclase feldspar, pyroxene, and often olivine
[from Italian, probably from Latin glaber smooth, bald]
gabbroic , gabbroitic adj
gabbro  (gbr)
A usually dark, coarse-grained igneous rock composed mostly of plagioclase feldspar and clinopyroxene, and sometimes olivine. Gabbro is the coarse-grained equivalent of basalt.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.gabbro - one of a family of granular intrusive rocks
igneous rock - rock formed by the solidification of molten magma


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? Mentioned in ? References in periodicals archive
 
hosted by monotonous sequences of clastic rocks intruded by gabbroic to granitic plutons, and metamorphosed to at least the greenschist fades.
Great mining camps of Canada 1. The history and geology of the Keno ... by Cathro, R.J. / Geoscience Canada
The Gradaus-Cumaru project area consists of Archean-age greenstone sequence and granitic to gabbroic intrusives, all of which have been intruded by slightly younger granitic bodies, the more important of which is the Cumaru granodiorite stock.
Aura Gold Inc.'Formerly Canadian Baldwin Resources Limited': ... by Business Wire
The continental environment features the massive intrusions of the midcontinental rift system, such as the Duluth gabbroic complex and associated intrusions, the Nipissing diabase, the huge Muskox Coppermine Mackenzie intrusive event and the Franklin intrusives in the Arctic.
Magmatic Platinum Group Element Environments in Canada: Present and ... by Theyer, Peter / Geoscience Canada
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