GLACIAL CYCLE OF EROSION

GLACIERS

• A glacier is a massive body of ice that travels slowly across land.
• Glacier is derived from the French word glace (glah-sAY), which signifies ice.
• Glaciers are frequently referred to as "ice rivers."Glaciers often have the form of a tongue, widest near the source and narrowest downstream.
• Despite the fact that the glacier is not liquid, it moves gradually due to the constant pressure from the snow accumulating above.
• The pace of movement is fastest near the centre, where there are fewer obstacles.
• The sides and bottom remain in place due to the friction that the valley floors and sides produce.
• A straight row of stakes put across a glacier will gradually take on a curved form down the valley, indicating that the glacier moves quicker in the middle than on the sides.
• Glacial landforms can be found in areas with no active glaciers or glacial processes.

Erosion Cycle in Glaciers

Youth

• The activity of the ice in a circle, cutting inward, marks the stage.
• Aretes and horns are on the rise. At this point, the hanging valleys are not visible.

Maturity

• The valley glacier transforms into a trunk glacier, and hanging valleys appear.
• The opposing cirques get closer, and the glacial trough gets a regular and graded stepped profile.

Old Age

• The formation of a 'U'-shaped valley denotes the beginning of old age.
• A conspicuous development is an outwash plain with characteristics such as eskers, kame terraces, drumlins, kettle holes, and so on.
• The peak heights are substantially lowered as the opposing cirques merge. Mountain peaks round out.

IMAGE SOURCE (THUMBNAIL)