Continental Convergence
When two continental plates meet, neither is subducted. Instead, the crust buckles and crumbles, pushing up mountains or areas of high level ground called plateaus. When the Indian Plate converged with the Eurasian Plate 50 million years ago, the slow up lift over millions of years pushed up the highest continental mountains in the world, the Himalayas. It also pushed up the Tibetan Plateau. Although the Tibetan Plateau is very flat, it is higher than the Alps mountain range in Europe and that's the definition for the Continental Convergence.