S Type Granite Origin

Tectonic setting is arc collision.
S type granite origin. High amounts of na2o and s type granitoids derived from sedimentary protoliths and containing high amounts of al2o3 and relatively low amounts of na2o. S type granites are over saturated in aluminium with an asi index greater than 1 1 where asi al 2 o 3 cao na 2 o k 2 o in mol percent. Petrographic features are representative of the chemical. Typical rock associations that include a types are l granites including peralkaline granites.
With its brightness its technical and structural features and its decorative appearance granite is a widely used material in the modern construction industry. Garnet is a very common accessory mineral in this type. S type granite this type is of sedimentary origin paraorigin from anatexis of sedimentary rocks with high al2o3 and low sio2 content ex. That the source rocks of these granites were at least dominantly sedimentary is shown by the strongly al oversaturated or peraluminous compositions of these rocks with corresponding mineralogical features such as the.
Strictly speaking granite is an. Granite coarse or medium grained intrusive igneous rock that is rich in quartz and feldspar. Other articles where s type granite is discussed. Magma type is usually peraluminous magma al2o3 na2o k2o cao.
S type granites are a category of granites first proposed by chappell white. S type granites comprise a little over half of the 63 000 km 2 of granite that is exposed in the palaeozoic lachlan fold belt lfb of southeastern australia. Granites can be predominantly white pink or gray in color depending on their mineralogy the word granite comes from the latin granum a grain in reference to the coarse grained structure of such a completely crystalline rock. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.
Learn more about the properties and uses of granite in this article. It is the most common plutonic rock of the earth s crust forming by the cooling of magma silicate melt at depth. Just as there are s and l type volcanic rocks a type volcanic rocks are common and may be closely associated with the in trusive rocks. If they are generated from different continental settings and from different magma so can we see.
Especially because of their extraordinary resistance the various types of granite were already widely used by the greatest civilizations in history starting from the ancient egyptians who used it to build temples and obelisks. I type granite formed by the igneous and s type granite formed by melting of metasedimentary rocks.