Answer:
There are several features that indicate a region has been shaped by glacial erosion. Some of these features include: Get homework help from essayhelper09[at]gm ail. c om. You deserve high-quality papers.
U-shaped valleys: Glaciers carve out valleys in a characteristic U-shape. The valley walls are steep and often exhibit smooth, polished surfaces. These U-shaped valleys are distinct from V-shaped valleys created by rivers.
Cirques: Cirques are bowl-shaped depressions at the head of a glacial valley. They are formed by the erosion of the glacier at the uppermost part of the valley. Cirques often contain small lakes, called tarns, and can give rise to the formation of other glacial landforms.
Horns: Horns are sharp, pyramid-shaped peaks that form when multiple glaciers erode the sides of a mountain. The steep walls of the mountain are carved into a pointed shape, with three or more arêtes (sharp ridges) separating them.
Hanging valleys: These are smaller valleys that enter a main glacial valley from the sides. Hanging valleys form when tributary glaciers erode their own valleys that are left elevated above the main valley floor after the ice retreats.
Glacial striations and polish: Glaciers carry and deposit rocks and sediment. As they move across the landscape leaving scratches and grooves called glacial striations. Smooth, polished surfaces on rocks and bedrock, known as glacial polish, can also be observed.
Moraines: Moraines are accumulations of rocks, gravel, and sediment that are deposited by glaciers. Terminal moraines form at the farthest extent of the glacier, lateral moraines form along the sides of the glacier, and medial moraines occur when two glaciers merge.
These features, among others, provide evidence of past glacial activity and indicate that a region has been shaped by glacial erosion.
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