Is Granite Mafic Felsic Or Intermediate

Typical intermediate rocks include andesite dacite and trachyandesite among volcanic rocks and diorite and granodiorite among plutonic rocks.

Is granite mafic felsic or intermediate.

Intermediate 1472 1832 degrees fahrenheit. Mafic vs felsic mafic and felsic are categories into which igneous rocks are classified. For example granite contains around 70 of silica. In igneous petrology an intermediate composition refers to the chemical composition of a rock that has 52 63 wt sio 2 being an intermediate between felsic and mafic compositions.

Felsic magmas are much more viscous than the intermediate magmas. Basalt is an extrusive mafic volcanic rock. This is an order showing increased silica content. Due to the color of the minerals forming them the rocks are either light or dark.

Felsic igneous rocks containing a excessive silica content more than 63 sio2 examples granite and rhyolite intermediate igneous rocks containing among fifty two 63 sio2 example andesite and dacite mafic igneous rocks have low silica forty five fifty two and typically high iron magnesium content material example gabbro and. All felsic rocks contain a high percentage of silica. Diorite is an intermediate rock equivalent to andesite. Mafic felsic and intermediate intrusive rocks.

What type of magma forms at mid ocean ridges. The lava flow has a medium viscosity as well and once cooled the resulting rock is known as andesite. Mafic rocks have between 45 and 55 of silica whereas felsic rocks have over 65 of silica the highest of all types. Granite is the name given to intrusive felsic rocks whereas rhyolite is the name given to extrusive felsic rocks.

Therefore rocks are divided into ultramafic mafic intermediate and felsic. Gabbro is a mafic rock and has the same chemistry and mineralogy as basalt. Intrusive rocks are classified the same way extrusive rocks are according to the relative amounts of feldspars quartz and ferromagnesian minerals. Granite is a great example of felsic rocks and muscovite quartz and some feldspar are the best examples of felsic minerals.

Felsic intermediate mafic ultramafic. And granite is. Part i volcanic extrusive rocks. Intermediate lava has a lower silica content than felsic lava but not as high magnesium or iron levels as found in mafic lava.

Additionally felsic magmas may have very high gas contents. Basalt andesite ultramafic granite. Rhyolite is not a mafic rock but a felsic rock high in silicates and similar to granite in composition.