Reply to comment by P.J. O'Brien on: “The onset of India-Asia continental collision: Early, steep subduction required by the timing of UHP metamorphism in the western Himalaya” by Mary L. Leech, S. Singh, A.K. Jain, Simon L. Klemperer and R.M. Manickavasa

Physical Sciences and Engineering Earth and Planetary Sciences Earth and Planetary Sciences (General)

Mary L. Leech, Sandeep Singh, A.K. Jain, Simon L. Klemperer, R.M. Manickavasagam,