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mafic
(redirected from Mafic Rock)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
maf·ic  (mfk)
adj.
Containing or relating to a group of dark-colored minerals, composed chiefly of magnesium and iron, that occur in igneous rocks.

[ma(gnesium) + Latin f(errum), iron + -ic.]

mafic  (mfk)
Relating to an igneous rock that contains a group of dark-colored minerals, composed chiefly of magnesium and iron. Compare felsic.


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Hydrothermal Alteration Alteration of the mafic rocks is generally expressed as biotite--chlorite--epidote--quartz-sulfide banding in the footwall proximal to the massive sulfide lenses at Hidden Creek (Fig.
39]Ar geochronology of mafic rocks from the granite-rhyolite terrane of southeastern Missouri, Precambrian Research, v.
 
 
 
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