The north part of the western margin of the Nanga Parbat Massif is exposed as spectacular natural transect provided by the Indus gorge. The Sassi area is particularly interesting. Here there are a variety of tectonic contacts that juxtapose the two terranes. There is an early ductile contact - possibly part of the Main Mantle Thrust - and later faults and shears of which the Shahbatot Fault is the most continuous. Use the map and section to explore these outcrops. Deformation within the Kohistan arc that relates to the early contact may be identified by tracking the behaviour of a suite of intrusions - the Confluence granite sheets. To see these in undeformed state, leave the Sassi area and return to their type area, at the confluence between the Indus and Gilgit rivers. |