Intrusive Granite Extrusive Equivalent

A felsic coarse grained intrusive igneous rock composed of quartz orthoclase feldspar sodium rich plagioclase feldspar and micas.

Intrusive granite extrusive equivalent.

No granite is the most common intrusive igneous rock. It is the intrusive equivalent of the extrusive rhyolite. Gabbro is a mafic rock and has the same chemistry and mineralogy as basalt. Granites are light colored with coarse grains.

And granite is a felsic rock equivalent to rhyolite. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock. What rock has the same composition as granite. Extrusive igneous rocks erupt onto the surface where they cool quickly to form small crystals.

Intrusive rocks are classified the same way extrusive rocks are according to the relative amounts of feldspars quartz and ferromagnesian minerals. Diorite is an intermediate rock equivalent to andesite. Examples of intrusive igneous rocks are diabase diorite gabbro granite pegmatite and peridotite. It contains more than 68 weight of silica in composition and is granular and coarse grained in texture.

Intrusive igneous rocks crystallize below earth s surface and the slow cooling that occurs there allows large crystals to form. Intrusive equivalent of rhyolite. Very light and will float on water. Rhyolite is the extrusive equivalent in chemistry and density of granite.

Granite is a coarse grained light colored intrusive igneous rock that contains mainly quartz feldspar and mica minerals. Granite is classified as a felsic rock high in silica content. The central cores of major mountain ranges consist of intrusive igneous rocks usually granite. It commonly forms as a bubble rich upper surface on many basalt and andesite lavas.

For example a magma that would form rhyolite if it vented at the surface would crystallize into a granite in a subterranean chamber kilometers below the surface. The high silica and low iron and magnesium contents result in crystallization of mostly non ferromagnesium silicate minerals k feldspar na plagioclase and quartz. They are primarily formed from continental crust. Granite the equivalent of its extrusive volcanic rock type rhyolite is a very common type of intrusive igneous rock.

Granite is an intrusive felsic silicic plutonic rock.