Is Granite Mafic Felsic Or Intermediate

Mafic felsic and intermediate intrusive rocks.

Is granite mafic felsic or intermediate. What type of magma forms at mid ocean ridges. Typical intermediate rocks include andesite dacite and trachyandesite among volcanic rocks and diorite and granodiorite among plutonic rocks. Part i volcanic extrusive rocks. Melting temperature potassium content silica content viscosity.

Diorite is an intermediate rock equivalent to andesite. For example granite contains around 70 of silica. Additionally felsic magmas may have very high gas contents. Basalt is an extrusive mafic volcanic rock.

Felsic intermediate mafic ultramafic. Gabbro is a mafic rock and has the same chemistry and mineralogy as basalt. Basalt andesite ultramafic granite. Therefore rocks are divided into ultramafic mafic intermediate and felsic.

Due to the color of the minerals forming them the rocks are either light or dark. Granite is the name given to intrusive felsic rocks whereas rhyolite is the name given to extrusive felsic rocks. Felsic magmas are much more viscous than the intermediate magmas. Mafic rocks have between 45 and 55 of silica whereas felsic rocks have over 65 of silica the highest of all types.

Rhyolite is not a mafic rock but a felsic rock high in silicates and similar to granite in composition. 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. 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 intermediate mafic which of the following properties increases in the direction of the arrows in the sentence above.

All felsic rocks contain a high percentage of silica. And granite is. Intermediate 1472 1832 degrees fahrenheit. Intrusive rocks are classified the same way extrusive rocks are according to the relative amounts of feldspars quartz and ferromagnesian minerals.

Intermediate lava has a lower silica content than felsic lava but not as high magnesium or iron levels as found in mafic lava. Granite is a great example of felsic rocks and muscovite quartz and some feldspar are the best examples of felsic minerals. The lava flow has a medium viscosity as well and once cooled the resulting rock is known as andesite.