For the first time, researchers have attempted to measure all the material leaving and entering a mountain range over more than a million years, and discovered that erosion caused by glaciation during ice ages can, in the right circumstances, wear down mountains faster than plate tectonics can build them.
Link:http://www.sciencedaily.com/releases/2015/11/151130163422.htm
Link:http://www.sciencedaily.com/releases/2015/11/151130163422.htm