Meltwater shaping glacial landforms

Question 1

outwash plane

Answer 1

large material is deposited first, finer material is deposited further away

Question 2

meltwater channels

Answer 2

channels cut by glacial meltwater under, along and in front of ice masses. capable of intense erosion

Question 3

proglacial lakes

Answer 3

form in front of glaciers. meltwater streams flow into proglacial lakes-slow down and deposit sediment on ice (DELTAS) from which sediment is deposited on valley floor

Question 4

kettle holes

Answer 4

blocks of ice melt leaving deep depressions in the outwash plane

Question 5

eskers

Answer 5

long, winding ridges of sand + gravel that run in the same direction as the glacier. they are deposits of subglacial meltwater streams underneath the glacier

Question 6

kames

Answer 6

mounds of sand + gravel found on valley floor often in association with kettle holes. when ice melts, the debris is dumped on the valley floor in a chaotic manner

Question 7

braided rivers

Answer 7

multi-channelled rivers separated by island of sediment. intense energy of the meltwater streams increases the size and volume of material carried by the river