Granitoid

A granitoid is a broad term referring to a diverse group of coarse-grained igneous rocks that are widely distributed across the globe, covering a significant portion of the Earth's exposed surface and constituting a large part of the continental crust.

[2] Granitoids range from plagioclase-rich tonalites to alkali-rich syenites and from quartz-poor monzonites to quartz-rich quartzolites.

Accordingly, multiple granitoid classification systems have been developed such as those based on: geochemistry, modal content,[jargon] emplacement depth, and tectonic regime.

[4] Generally, the evolution to granitoid magmas requires a thermal disturbance to ascent though continental crust.

[4]  Most granitoids are generated from crustal anatexis, the partial melting of the crust;  however the mantle may contribute both heat and material.