Rajesh, H.M.Mukhopadhyay, JoydipBeukes, N.J.Gutzmer, J.Belyanin, G.A.Armstrong, Richard2015-12-100016-7649http://hdl.handle.net/1885/39481Granitoids in the early Archaean are believed to be potassium-poor tonalite-trondhjemite-granodiorite rocks. Only after continental crust attained sufficient thickness did true (relatively potassium-rich) granites form. No record of true granite prior toKeywords: Archean; continental crust; crustal thickness; gneiss; granitoid; granodiorite; petrography; tonalite; trondhjemite; Asia; Bastar Craton; Eurasia; India; South Asia200910.1144/0016-76492008-0892016-02-24