igneos rock
igneos rock
Mafic is a term used to describe an igneous rock that is usually dark in color, with a chemistry that may be high in magnesium and iron, like basalt. Mafic is also a term used to describe a type of magma that is high in calcium, magnesium and iron, and relatively low in silica, compared to felsic magma.
Ultramafic is a term used to describe igneous rocks made solely of mafic minerals.
The term used to describe the composition of an igneous rock rich in the elements magnesium and iron is "mafic." Mafic rocks typically contain a higher proportion of dark-colored minerals, such as pyroxene and olivine, and are generally denser than their felsic counterparts, which are richer in silica and lighter-colored minerals. Examples of mafic rocks include basalt and gabbro.
They are descriptive terms as to the relative silica content of igneous rocks. Igneous rock which is high in silica is referred to as felsic. Igneous rock which is relatively low in silica is referred to as mafic.
Is mineral amphibolite a felsic, mafic or intermidiate in term of color
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no
Montagu uses the term "dead languages" to describe Latin and Greek.
no
The term they use is civilazation.