Exploring the obscure continent, an explorer from America showed us how isolated Antarctica really is. Close to five million square miles, which make up Antarctica are covered in the world’s largest ice mass. One estimate places the ice sheet at 2000 feet thick; others say that is much too low. Ice covers all the land except some rocky coastal areas and the tallest mountain peaks.
Heading to the ocean, the ice moves as a giant glacier between the mountains. Mountainous regions serve as a buffer for the expansive central plateau on which the South Pole is found, and which rises 8,000 to 10,000 higher than sea level.
Map makers have cut Antarctica into four separate areas named for northern seas or lands. They are called the African, Australian, Pacific and American quadrants. No one has explored the coastlines of the Pacific and African quadrants. Similarly, there is but a small area of the American quadrant which has been explored to any degree, but the Australian quadrant, home of the Ross Sea sector, has received quite a bit of attention.
The Australian quadrant lies between the Ross Sea on the east and Queen Mary Land on the west, and includes the areas designated as Adelle Land, South Victoria Land, Wilkes Land, Oates Land and King George V Land. You’ll find a huge sheet of shelf ice, which is about 160 thousand miles square, called the Ross Barrier, on the western rim of the Ross Sea.
The explorers have established their research facilities from various countries near a natural harbor close to ice cliffs at the edge of the shelf near the Bay of Whales on the barrier. Mount Terror and Mount Erebus are the two volcanoes that fill Ross Island. The island is located at the western end of the barrier. From King Edward VII Land to the Ross Sea, the barrier travels for 400 miles. From the ocean to the mountainous regions, along the polar course, it is 400 miles wide.
The barrier is shelf ice, as can only be found in Antarctica. It was created by sections of glacier that traveled down the mountains and then ran into the sea in the Ross Sea section. Ice still travels through glacier channels, with can be between five and fifteen miles wide, to reach the Ross Sea. Some ice travels for over one hundred miles. Scientists don?t know if the Barrier is floating in the water or sitting on the bottom.
The western edge of the Pacific quadrant is bordered by the Ross Sea. Large rocks jut from the land in King Edward VII land, which can be found there. The adventurer made his way to this sector on an initial expanded flight from the Bay of Whales, and it was then that he observed the Scott Nunataks and the Alexandra Mountains. In later flights he was able to find fourteen uncharted mountain peaks, one new island and a ton of land that is begging to be explored. Finally, geographers may be able to create a complete map of the Pacific quadrant’s coastline with the data he collected.
There American quadrant houses the Coats Land, Charcot Land and Graham Land areas. One well-known spot is the Weddell seal area, which indents into the land. After a flight, an explorer discovered Graham Land isn’t actually part of the continent. It is a separate island. Geographers discuss if the continent should be divided. The Weddell Sea in the American quadrant is across from the Ross Sea in the Australian quadrant.
Scientific research and field study are two of the disciplines which are available on an unlimited basis in Antarctica. Geographers want to finish mapping the coastline. Then they can finalize the mountain ranges and polar plateau.
Geologists are busy trying to study the land beneath the ice and understand how the glaciers have affected the land itself.
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