Question

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150 120 0° 60 120 150 Greenland Scandinavian Laurentide Ice Sheet Ice Sheet ATLANTIC PACIFIC OCEAN Tropic of Cancer OCEAN PACIFIC Equator 0° 0° OCEAN INDIAN OCEAN Tropic of Capricom 30 30° ATLANTIC LI lce sheet or glacier 0 1,500 3,000 Miles OCEAN 0 1,500 3,000 Kilometers 60° 60 Antarctic Circle Antarctica The map above, illustrates the extent of glaciers (both alpine and continental ice sheets) during he lasl major ice age (Pleistocene Epuch). Based on Uhe ap above, describe lhe extent of glaciers during the . Pleistocene Epoch

Answer 1

1. The Laurentide ice sheet is extending along with the parts of Northeastern Russia (present day), covering the whole Greenland, Canada and the USA (United States of America). While Scandinavian ice sheets covering the whole European countries. Some alpine glaciers scattered in the Asian continent have an extent in present-day India ( northeastern), China ( in some parts), Nepal and Kyrgyzstan. The glaciers also in South American continent especially in the parts of Chile, Peru, and Argentina. The Antarctica continent fully covered by glaciers.

2. Present day glaciers are scattered expect the Greenland and Antarctica. Glaciers are present in small regions of Chile and Argentina. In Asia along with the Himalayan range and in some part of Russia. In some parts of China and Kyrgyzstan. Noway, Georgia and some parts of Italy also have glacial covers. In the lower part of United States (Alaska region) and in the upper of Canadian region glacial coverage is there, Antarctica, the whole continent is covered by glaciers.

3. V-shaped valley have steep valley walls and with narrow valley floors. It is developed by rapid erosion due to the river flow. While U-shaped valley has steep, straight side and a flat bottom. U shaped is originally formed from V-shaped valley as the water trickles due to temperature fluctuation through the cracks of the in the rocks. During glaciation, Ice moves down because of its weight and gravity in V-shaped valley. During this, they scour huge rocks from the sides and from the base of the valley giving U type shape.