mafic Definition
mafic (maf′ik)
adjective
Geol. of or pertaining to igneous rocks that are rich in dark-colored minerals and that contain magnesium and iron and a comparatively low level of silica
Etymology: ma(gnesium) + L f(errum), iron + -ic
mafic Usage Examples
Modifies a noun
- inclusion: This sample may provide a key genetic link between the mafic inclusions and their andesitic host.
- rock: G Gabbro a coarse-grained mafic igneous rock consisting of plagioclase feldspar and pyroxene.
- volcanics: Siliceous sediments with anomalously high Ba occur in association with probable mafic volcanics.
- magma: The magma storage region can be represented by an andesitic body cooling in the shallow crust experiencing inputs of relatively 'hot ' mafic magma.
- complex: Geology of the Atlantis Massif ( MAR 30 ° N ): implications for the evolution of an ultra- mafic oceanic core complex.
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