The Main Mantle Thrust: Its Score in Metallogeny of Northern Pakistan
Abstract
Major shear zones in the collisional orogens like the ones exposed in Pakistan, can create important pathways for the movement of the mineralized solutions along with magmatic emanations. The Main Mantle Thrust (MMT), which has come to limelight recently, constitutes one of the important major tectonic scars on the northwestern terminus of the Himalaya. It extends for over 500 km across the northern part of Pakistan, welding the Indo-Pakistan plate with the Kohistan island arc. Several magmatic bodies, some of them of batholithic dimensions are associated with this megashear. In this paper an attempt has been made to focuss upon the magmatic environments associated with MMT to discern various episodes of metallic mineralizations and their localizations in the subducted Indo-Pakistan marginal mass, obducted Kohistan mass and in the Main Mantle Thrust zone.
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