11. Strongly deformed leucogranite lenses in mylonitic metasedimentary rocks of the lower Indian cover sequence. Locality is near confluence of un-named side river with Biji Gah, between Garol and Gashit, near the western margin of the Jalhari Shear Zone, the tectonic boundary of the Nanga Parbat massif in this area. Strong down-dip stretching lineation affecting both the leucogranites and the metasedimentary mylonites are a result of early movement on this shear zone. Variable strain in different phases and/or parts of the granite sheets here indicate syn-kinematic intrusion of these granites; this is the granite phase dated [the sample derived from a lower strain area a few kilometers to the south near Garol] with a monazite Th-Pb age of 12 Ma. Elsewhere in the cover sequence similar mylonites [without the granite] have gently north or south plunging stretching lineations, which we interpret as substantially older structures associated wth the emplacement of Kohistan over Indian continental margin on the MMT. Sarbuland Khan for scale.

Image copyright © 1997 M.A. Edwards.
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