geography paper 1 glaciers
- Created by: kavish791
- Created on: 11-05-22 20:58
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- Glaciers (Kavish)
- glaciers erode landscapes as they move
- abrasion- rocks stuck in the ice grind against the rock below the glacier, wearing it away
- plucking- glaciers freeze on rock, as the glacier moves it pulls out pieces of rock
- glacial erosion can create a range of landforms
- truncated spurs- cliff like edges on the valley side formed with ridges of land that stick out into the main valley are cut off *** glacier moves past
- ribbon lakes- long thin lake formed after a glacier retreats
- hanging valleys- small glaciers that flow into a main glacier
- glacial troughs- valleys with flat floors, start v-shaped but change u-shaped as glacier erodes side and floors
- glaciers deposit materials as different types of moraine
- lateral moraine- side of where glacier was
- medial moraine- centre of valley floor when 2 glaciers meet
- terminal moraine- builds up at snout (front) of glacier
- ground moraine- eroded material dragged along base of glacier
- drumlins and erratic's
- drumlins- formed due to overload of glacial deposit, overtime egg-like hills are formed under glaciers.
- erratic's- rocks picked up by glaciers and dropped in an different area.(often look out of place)
- glaciated areas have economic uses-
- farming- sheep farming as of steep slope & poor soil makes it bad for other faming crops can grow at lower altitudes
- quarrying- glacial erosion has left lots of exposed rock
- tourism- landscapes are attractive tourist hotspots, lots of activities to do.
- forestry- coniferous(evergreen) forests can cope with cold weather & high rainfall so placed in upland glaciated areas
- glaciers erode landscapes as they move
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