Note on the Characteristics of Malani Petrographic Province (MPP), Western India

Sonu Jinger; Hemant Sen; Vinod Agrawal

Volume : VI, Issue : V, May - 2016

Note on the Characteristics of Malani Petrographic Province (MPP), Western India

Sonu Jinger, Hemant Sen, Vinod Agrawal

Abstract :

The Malani Petrographic Province (MPP) of western Rajasthan, India, represents the silicic volcanics spread over in an area of about 31000 sq.kms. The major rock unit of MPP is of rhyolites which are relatively more or less uniform in composition. Chemical analyses conducted by various workers in MPP suggest that the rhyolites of the MPP are characterized by high silica content and are sub–alkaline in nature. There is a general consensus that the MPP represents Neoproterozoic volcanism and having an age of ~750 + 20 Ma. The origin of the MPP is considered as an event of anorogenic felsic volcanism.