Glacier ice has great erosive power removing ... They get cut off so while erosion makes the main valley deeper and deeper, the smaller valley is left hanging higher up above the valley floor.

New evidence has revealed that their disappearance could be due to severe glacial erosion that occurred during a time known as “Snowball Earth” when almost the whole planet was covered with ice. The ...

Be and 26Al concentrations in river sand reveal an increase in erosion rate in the Brazilian Highlands consistent with the Mid-Pleistocene Transition, a major climatic shift that occurred about 1 ...