How to use in-sentence of “mafic”:
– Most mafic lava volcanoes are oceanic volcanoes, like Hawaii.
– Common rock-forming mafic minerals include olivine, pyroxene, amphibole, biotite and other micas, augite and the calcium-rich plagioclase feldspars.
– These felsic protocontinents probably formed at hot spots rather than subduction zones, from a variety of sources: mafic magma melting more felsic rocks, partial melting of mafic rock, and from the metamorphic alteration of felsic sedimentary rocks.
– In terms of chemistry, mafic rocks are on the other side of the rock spectrum from the so-called felsic rocks.
– It is made of denser, more mafic rocks, such as basalt.
– The magma forming this lava is often felsic, with high-to-intermediate levels of silica, and less mafic magma.
– Common mafic Rock rocks include basalt and gabbro.
