Granite tsim nyob rau hauv ntau qhov sib txawv. Qee cov granite tau tsim nyob rau hauv cov cheeb tsam ntawm rifted continental los yog dej hiav txwv crust, tab sis feem ntau granite tau tsim nyob rau hauv ib cheeb tsam ntawm kev sib tsoo ntawm continents thiab dej hiav txwv crust, thiab qhov twg continents tau amalgamated.
Granite tsim los ntawm ob txoj kev sib txawv: los ntawm fractional crystallization ntawm basaltic magma; thiab los ntawm melting qub continental crust. Nyob nruab nrab ntawm cov tswv cuab kawg no, muaj cov txheej txheem hybrid, suav nrog kev sib xyaw ntawm basaltic thiab granite magmas, thiab kev sib kis ntawm basaltic magma los ntawm ib nrab melts ntawm ntau hom continental crust.
Ib qho granite uas muaj ob muscovite thiab biotite mica yog hu ua binary lossis ob-mica granite. Ob-mica granites feem ntau muaj cov poov tshuaj thiab tsawg hauv plagioclase, thiab feem ntau yog S-type granites lossis A-type granites.
Granite muaj felsic muaj pes tsawg leeg thiab muaj ntau dua nyob rau hauv lub sij hawm geological tsis ntev los no nyob rau hauv sib piv rau lub ntiaj teb lub ultramafic ancient igneous keeb kwm. Felsic pob zeb tsis tshua muaj tuab dua li mafic thiab ultramafic pob zeb, thiab yog li lawv zoo li khiav tawm, qhov basaltic los yog gabbroic pob zeb zoo li mus rau hauv lub mantle hauv qab cov pob zeb granite ntawm cov teb chaws cratons. Yog li ntawd, granite pob zeb tsim hauv qab daus ntawm txhua lub teb chaws av.