Precambrian Basaltic Andesites from Garo Hills, Meghalaya

Basaltic andesites of Precambrian age are reported and described for the first time from Garo Hills, Meghalaya. These volcanics occur as xenoliths within Proterozoic granitoids. Petromineralogical and petrochemkal characters of the volcanics revealed them to be basaltic andesite. The basaltic andesite are observed both as porphyritic and aphyric types.