gabbro
/gab-roh/US // ˈgæb roʊ //UK // (ˈɡæbrəʊ) //
辉长岩,辉绿岩,辉石岩,闪长岩
Definitions
n.名词 noun
- 1
plural gab·bros.Petrology.
- : a dark granular igneous rock composed essentially of labradorite and augite.
Examples
Peridotite and gabbro form much of the eastern peninsula (Banggai).
Gabbro, a typical basic rock, corresponds to basalt in chemical composition.
The gneisses appear to be due in many cases to the crushing and shearing of deep-seated igneous rocks, such as granite and gabbro.
The one exception is on Caribou Ridge, which is capped by a much altered gabbro.
These volcanic materials are pierced by serpentine, gabbro and granite.
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