Landscape types
Glaciated uplands
Look at the location map of A mountainous area that has been eroded by ice. in the UK below:
The following are features of glaciated uplands:
- A bowl-shaped hollow area formed by glaciation, sometimes containing lakes or 'tarns'. Corries are also known as cirques or, when found in Wales, cwms.
- A sharply pointed mountain peak that has been formed by glaciation.
- A sharp ridge of rock separating two corries.
- A wide valley carved out by glaciers.
How ice erodes
Ice erodes by:
- A type of glacial erosion that occurs when ice freezes onto the landscape, ripping out rocks when it moves. - the A slow-moving ice mass, formed over a long period from compacted snow. pulls out chunks of rocks to leave a jagged surface. This provides material for abrasion.
- When rocks carried by the sea water wear away the landscape, eg cliff face/headland. - rocks stuck in the ice grind away the bedrock under the glacier.
- Freeze thaw - When water in rocks freezes and expands, breaking the rock apart./frost shattering is a process of weathering that also occurs in upland areas. water in cracks in the rock freezes and expands forcing open the gap. When the ice melts more water can get into the crack and freeze again. After lots of freezing and thawing lumps of rock are broken off the surface. These small pieces of rock are called scree and often build up forming scree slopes on mountainsides
