The process by which the crystals formed in a cooling magma are segregated from the remaining liquid at progressively lower temperatures.
Bowen's reaction series
the simplified pattern that illustrates the order in which minerals crystallize from cooling magma according to their chemical composition and melting point
Describes magma or igneous rock that is rich in feldspars and silica and that is generally light in color.
describes magma or igneous rock that is rich in magnesium and iron and that is generally dark in color
Igneous rocks with low silica content and very high levels of magnesium and iron. Periodite, dunites, and doirite are examples.
(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals
a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements