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mafic
(redirected from Mafic magma)

    Also found in: Wikipedia 0.03 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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Alternatively, these features can be inherited from mafic magma derived from metasomatized mantle, and the differentiated products from such magma reproduce the jagged pattern.
Igneous rock associations 8. Arc magmatism II: geochemical and ... by Murphy, J. Brendan / Geoscience Canada
Arcs under extension have a steep geothermal gradient and underplating of the crust by mafic magma may transfer sufficient heat to induce anatexis.
Igneous Rock Associations 7. Arc magmatism I: relationship between ... by Murphy, J. Brendan / Geoscience Canada
Similarly, Ba behaves incompatibly in mafic magmas but concentrations either level off of fall in highly differentiated rocks.
Igneous rock associations 4. Oceanic island volcanism I mineralogy ... by Mallory-Greenough, Leanne M. / Geoscience Canada
 
 
 
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