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Unravelling the tectonic processes responsible for the uplift of the Himalaya requires in-depth investigation of individual terranes caught up along the Indus Suture Zone that separates the continents of India and Eurasia. The Himalayan Orogen represent the complex amalgamation of, not only the two colliding continents with one plate subducting underneath the other, but also fragments of oceanic crust (ophiolites) and intraoceanic arcs that developed within the vast expanse of the now extinct Neotethyan Ocean. The aim of this thesis was to resolve the tectonic evolution of the Dras-Nindam terr...

Abstract The Dras Arc is an island arc terrane located along the Indus Suture within the Ladakh Himalaya. To the north it is juxtaposed against the Eurasian Ladakh Batholith and to the south it is thrust over the Lamayuru Complex and Indian passive margin. Establishing the timing of inception and final collision of the Dras Arc is imperative to reconstructions of the Neotethyan Ocean and timing of arc-continent collisions, prior to the terminal India-Asia continental collision. We describe and date felsic tuffs and adakitic felsic volcanic rock interbedded within the dominantly basaltic-andes...