Glacial Erosion
This is a mountain peak formed by valley glaciers eroding in multiple directions.
horn
Loose, unsorted sediment deposited by glaciers.
glacial till
This is the type of glacial lake found in the bottom of a cirque.
tarn
What are the s-shaped curves of a river called?
meander
A relatively flat area next to a river, usually towards the lower end of the river where it moves more slowly. This area often gets covered with water in the spring.
flood plain
The is a ridge that forms between two valley glaciers.
arete
This is a long, egg-shaped hill formed then a glacier pushes over previously formed moraine.
drumlin
This is the type of lake formed when a large chunk of a glacier breaks off, gets covered by glacial till and forms a depression that late gets filled in with water.
kettle lakes
This is a depositional feature that forms at the end of a river.
delta
These are rocks that get left behind when a glacier retreats.
glacial erratics
This is bowl shaped depression formed at the top of an valley glacier.
cirque
This is a fairly symmetrically shaped hill of glacial till formed when sediment fills a depression in a glacier and gets deposited when the glacier melts.
Kame
This type of lake is formed when a moraine blocks the flow of water melting from a glacier.
moraine-dammed lake
This is the part of a meander where more erosion occurs.
the outside
This is a feature that forms when a mountain stream shows a sudden drop in elevation.
waterfall
This is the shape formed by a valley glacier.
U-shaped
This is the type of moraine that forms at the end of a glacier.
terminal moraine
These are the most common type of lakes in Minnesota?
kettle lakes
This is the type of valley formed by river erosion.
V-shaped valley
This is a glacial deposition feature that forms from a river that flows under a glacier. It looks like a river of glacial till.
esker
This is the process when large rocks break off as glaciers push over bedrock.
plucking
This is the type of moraine that forms between two valley glaciers that come together.
medial moraine
What is a lake that forms when a meander of a river gets "cut-off" from the river?
an oxbow lake
This term is used to describe a smaller river or stream that flows into a larger one.
tributary
This is a depositional feature formed by a river that is like a delta, but forms on land. It often forms when the slope of a river changes dramatically.
alluvial fan