Ice-Scour Lake Landscape
This is a type of glacial lake landscape consisting of lakes that is created by glacial erosion. When a glacier flows down a valley due to gravity and pressure, it carries abundant debris that abrade the bedrock surface. A depression can form, or the glacier may scour an existing depression into a lake basin. When the glacier melts, the outlet may be blocked by debris, which can prevent water from flowing out and forms a lake. These lake basins have elongated shapes and gentle shores. Drift gravels often remain. The bedrock surface of the basin wall and basin bottom often have glacier-polished surfaces and striation marks. Many lakes in the Tibetan Plateau, Kanas Lake in Xinjiang Province, Xinluhai Lake in Dege County, Sichuan Province, and the Taibai Pool in Taibai Mountain, Shaanxi Province, are ice-scour lakes.