Glaciation 5.0 / 5 based on 1 ratingTeacher recommended ? GeographyGlacial landscapes and processesGCSEAQA Created by: MRS TCreated on: 15-02-16 19:50 What is accumulation? Inputs to the Glacier budget, such as snowfall and avalanches. 1 of 18 What is ablation? Outputs from the glacier budget, such as melting. 2 of 18 What is the glacier budget? The balance between the inputs (accumulation) and the outputs (ablation) of a glacier. 3 of 18 What is calving? Chunks of ice falling off a glacier. 4 of 18 What is plucking? Individual rocks are plucked from the valley floor or sides as water freezes them to the glacier. 5 of 18 What is deposition? Deposition occurs when the ice melts and the bulk of the material is deposited, (mostly) at the snout. 6 of 18 What is a moraine? Sediment carried and deposited by the ice like a giant conveyer belt. 7 of 18 What is a hummock? A small area of raised ground, rather like a large molehill. 8 of 18 What is a Corrie? A deep depression on the hillside with a steep back wall, often containing a lake. 9 of 18 What is an arête? A knife edged ridge, often formed between two curr A knife edge to Rich, often formed between two corries. 10 of 18 What is a pyramidal peak? Sharp edged mountain peak. 11 of 18 What is a glacial trough? A wide, steep sided valley eroded by a glacier. 12 of 18 What is a truncated spur? An eroded interlocking spur characterised by having a very steep cliff. 13 of 18 What is a hanging valley? A tributary glacial trough perched up on the side of the main valley, often marked by a waterfall. 14 of 18 What is a ribbon lake? A long narrow lake in the bottom of a glacial trough. 15 of 18 What is a lateral moraine? A ridge of frost shattered sediment running along the edge of a glacier where it meets the valley sode 16 of 18 What is the medial Moraine? A ridge of sediment running down the centre of s glacier formed when two lateral moraines merge. 17 of 18 What is a terminal moraine? A high ridge running across the valley representing the maximum advance of a glacier. 18 of 18
Comments
No comments have yet been made