Glaciation - AS
- Created by: aminaamri
- Created on: 12-05-17 21:34
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Clues
- a glacier that flows odwn a valley's being fed by corries or ice fields (4, 2, 1, 6, 7)
- Creep- forms fold structures. Faulting- When ice cannot creep at a fast enough rate & forms superficial tensional fractures. (4, 2, 5, 8)
- Formed when ice is melting nad overloaded in a lowland area. Reshaping of previously deposited material. Formation not fully understood. (3, 2, 7, 6)
- Glacier flows down v-shaped valley due to gravity. Mass of ice forms it into a U-shape. Steep sides. Scree accumulates at the base of the valley sides and lessen the slope angle. (3, 2, 1, 6, 6)
- Large expanses of ice- larger than an icecap (4, 2, 2, 8)
- Rock detached by weathering, falls down slope creating angled scree slope (4, 2, 1, 4, 4)
- Snow, ice from direct precipitation, avalanches and windblown snow (4, 2, 12)
- Sub-surface process that leads to a vertical sorting of material in the active layer. As the temp falls- water beneath the stones freezes, expands, causing the stones to be pushed out. (4, 2, 5, 5)
- The gradual movement of wet soil & other material down a slope, especially where frozen subsoil acts as a barrier to the percolation of water. (4, 2, 12)
- Within Ice-walled tunnels that had streams that flowed in & under glaciers. Streams deposits remained as long winding ridges. (3, 3, 6, 6)
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