Explain with neat diagrams of the cirques.
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A glacier is a moving mass of ice at speeds averaging few meters a day.
Types of Glaciers: continental glaciers, ice caps, piedmont glaciers and valley glaciers.
The continental glaciers are found in the Antarctica and in Greenland. The biggest continental ice sheet in
Ice caps are the covers of snow and ice on mountains from which the valley or mountain glaciers originate.
The piedmont glaciers form a continuous ice sheet at the base of mountains as in southern Alaska.
The valley glaciers, also known as Alpine glaciers, are found in higher regions of the Himalayas in our country and all such high mountain ranges of the world.
The largest of Indian glaciers occur in the Karakoram range, viz. Siachen (72 km), while Gangotri in Uttar Pradesh (Himalayas) is 25.5 km long.
A glacier is charged with rock debris which are used for erosional activity by moving ice.
A glacier during its lifetime creates various landforms which may be classified into erosional and depositional landforms.
Glacial Erosional Landforms
Glacial Erosional Landforms-glaciated topography
Cirque/Corrie
Hollow basin cut into a mountain ridge.
It has steep sided slope on three sides, an open end on one side and a flat bottom.
When the ice melts, the cirque may develop into a tarn lake.
Glacial Trough
Original stream-cut valley, further modified by glacial action.
It is a ‘U’ Shaped Valley. It at mature stage of valley formation.
Since glacial mass is heavy and slow moving, erosional activity is uniform – horizontally as well as vertically.
A steep sided and flat bottomed valley results, which has a ‘U’ shaped profile.
Hanging Valley
Formed when smaller tributaries are unable to cut as deeply as bigger ones and remain ‘hanging’ at higher levels than the main valley as discordant tributaries.
A valley carved out by a small tributary glacier that joins with a valley carved out by a much larger glacier.
Arete
Steep-sided, sharp-tipped summit with the glacial activity cutting into it from two
Horn
Ridge that acquires a ‘horn’ shape when the glacial activity cuts it from more than two sides.
D-Fjord
Steep-sided narrow entrance-like feature at the coast where the stream meets the coast.
Fjords are common in Norway, Greenland and New Zealand...
I hope it can help u as well
plzz mark me as brainliest if it is helpful for you
Types of Glaciers: continental glaciers, ice caps, piedmont glaciers and valley glaciers.
The continental glaciers are found in the Antarctica and in Greenland. The biggest continental ice sheet in
Ice caps are the covers of snow and ice on mountains from which the valley or mountain glaciers originate.
The piedmont glaciers form a continuous ice sheet at the base of mountains as in southern Alaska.
The valley glaciers, also known as Alpine glaciers, are found in higher regions of the Himalayas in our country and all such high mountain ranges of the world.
The largest of Indian glaciers occur in the Karakoram range, viz. Siachen (72 km), while Gangotri in Uttar Pradesh (Himalayas) is 25.5 km long.
A glacier is charged with rock debris which are used for erosional activity by moving ice.
A glacier during its lifetime creates various landforms which may be classified into erosional and depositional landforms.
Glacial Erosional Landforms
Glacial Erosional Landforms-glaciated topography
Cirque/Corrie
Hollow basin cut into a mountain ridge.
It has steep sided slope on three sides, an open end on one side and a flat bottom.
When the ice melts, the cirque may develop into a tarn lake.
Glacial Trough
Original stream-cut valley, further modified by glacial action.
It is a ‘U’ Shaped Valley. It at mature stage of valley formation.
Since glacial mass is heavy and slow moving, erosional activity is uniform – horizontally as well as vertically.
A steep sided and flat bottomed valley results, which has a ‘U’ shaped profile.
Hanging Valley
Formed when smaller tributaries are unable to cut as deeply as bigger ones and remain ‘hanging’ at higher levels than the main valley as discordant tributaries.
A valley carved out by a small tributary glacier that joins with a valley carved out by a much larger glacier.
Arete
Steep-sided, sharp-tipped summit with the glacial activity cutting into it from two
Horn
Ridge that acquires a ‘horn’ shape when the glacial activity cuts it from more than two sides.
D-Fjord
Steep-sided narrow entrance-like feature at the coast where the stream meets the coast.
Fjords are common in Norway, Greenland and New Zealand...
I hope it can help u as well
plzz mark me as brainliest if it is helpful for you
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