Definition of Mafic. Meaning of Mafic. Synonyms of Mafic

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Definition of Mafic

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Meaning of Mafic from wikipedia

- A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron. Most mafic minerals are dark in color, and common rock-forming...
- high FeO, low pot****ium, and are usually composed of greater than 90% mafic minerals (dark colored, high magnesium and iron content). The Earth's mantle...
- relatively rich in elements that form feldspar and quartz. It is contrasted with mafic rocks, which are richer in magnesium and iron. Felsic refers to silicate...
- volcanics. The hangingwall to the deposit is broadly related to a more mafic sequence of volcanic rocks, either andesite (examples being Whim Cr**** &...
- dark mafic minerals and generally light felsic minerals in an igneous rock. The color index of an igneous rock is the volume percentage of mafic minerals...
- feldspar (90–100%), with a minimal mafic component (0–10%). Pyroxene, ilmenite, magnetite, and olivine are the mafic minerals most commonly present. Anorthosites...
- ultramafic-mafic intrusive complex consists of ultramafic peridotites and pyroxenites with ****ociated chromitite layers toward the base with more mafic norites...
- GAB-roh) is a phaneritic (co****-grained and magnesium- and iron-rich), mafic intrusive igneous rock formed from the slow cooling magma into a holocrystalline...
- consists largely of tonalitic and granodioritic gneisses and lesser amounts of mafic and ultramafic gneisses. It underlies and is largely concealed by thin,...
- of alkali metals. It is intermediate in composition between low-silica (mafic) gabbro and high-silica (felsic) granite. Diorite is found in mountain-building...