Scientists identify two major kinds of ice - ice sheets and mountain.Antarctica is almost entirely occupied by ice sheets, which have a number of distinctive features.

1. The sheer size
2. Especially plano-convex shape
3. The direction of movement is primarily due to the plasticity of ice, not the glacier bed topography
4. lack of a clear boundary between the drain and the power of the glacier.

ice sheet, in turn, are divided into several types, each of which can be found in Antarctica.
1. ice cap - a characteristic shape of glaciers is often found in the coastal zone of Antarctica.It represents the mass of ice dome height from 300 to 500 m, width typically 10-20 km.The form of the surface of the ice cap often elliptical, it's kind of a small accumulation of ice center.An exam
ple of the ice cap is Drygalski Island - it is located on the moraine near the station "Peace" and has a length of 20 km of the dome, and the width - 13 km.According to the observations of scientists precipitation does not compensate for consumption of ice as a result of splitting off of icebergs, resulting in reduced and the island in 300 years could disappear entirely.Sometimes the ice caps can be found in the edge zones of the continent, as well as in the sea near the coast in the form of individual ice islands.
2. Inspired by the glaciers - are found in the "Oasis" Antarctica, mainly in the north-western slopes of the terrain in the form of large snowdrifts.This type of ice is formed by snow drifts blizzard.Because the coastal zone of Antarctica blow strong southeasterly wind, inspired by the glaciers is often formed in the north-west direction from the leeward slopes of rocks.
3. Outlet glaciers - a kind of icy rivers, which are the channels drain ice from the interior of the continent to the shores.Dimensions of outlet glaciers are dependent on the size of sub-glacial valleys, sometimes they are huge.Examples are the Lambert Glacier, a length of about 450 km and a width of more than 50 km.It takes place in the Prince Charles Mountains on Earth Mac Robertson.Scientists have several dozen large outlet glaciers in Antarctica.Despite the fact that the share of outlet glaciers account for less than 10% of the coastline, it is for them receiving more than 20% of ice annually discharged into the sea.In addition, the average speed of glacial compared with other types, the highest and turbulent nature of their surface.
4. Ice shelves - this is the most common type of ice in Antarctica.Nowhere ice shelves are not found in this volume, as "ice continent".The name of this type of ice is so called because the area is found in the shallow coastal shelf.Their thickness may be small, or they swim in the sea, or sometimes rely on islands or submerged banks.The area of ​​ice shelves can be huge (eg the Ross Ice Shelf).Often the inner edge of the glacier rests on the continental ice sheet, and the external access to the open sea, forming huge cliffs up to several tens of meters.It is from the large ice shelves calve huge icebergs sometimes reaching several hundred kilometers across.Scientists have found that ice shelves are formed by dripping ice sheet into the sea, as well as the accumulation of snowfall.