Most commonly,felsic igneous rocks
A) contain more iron and magnesium than intermediate rocks.
B) are lighter in color than mafic rocks.
C) are darker in color than mafic rocks.
D) are found in oceanic crust.

Question

Quizplus · Accepted Answer

Felsic igneous rocks are rich in silica and contain more alkali metals and aluminum than mafic rocks. They are generally lighter in color due to their high quartz and feldspar content, which gives them a more "granitic" appearance. Mafic rocks, on the other hand, are darker in color due to their high iron and magnesium content. Felsic rocks are typically associated with continental crust rather than oceanic crust.

Most Commonly,felsic Igneous Rocks