This has happened with Everest, as material close to Everest has been removed causing uplift or isostatic rebound,' Mr Smith adds. Over the 89,000 years since the Kosi and Arun rivers merged ...

That translates to an uplift rate of roughly 0.2 to 0.5mm per year. The geological process at work, they said, is called isostatic rebound. It involves the rise of land masses on Earth’s crust ...