An interesting association of granitoid-amphibolite-metasediments occurs around Jagat, southeast of Udaipur in Rajasthan. Lying a little south of the area from where 3.3-billion-year-old gneisses have been reported, these rocks compare well with the known greenstone associations of Archaean age. The mafic and granitoid rocks show chemical affinity with the modern volcanic arc rocks
