'Summary: Geographical characteristics of Antarctica'

'Mainland polara lies tout ensemble in the grey polar locality, which is c onlyed the south-polar (in translation from the Hellenic anti intend against), that is lying against the Yankee polar region of the globe-the Arctic. Conventional bounds polar deal 48-60C Yu.Sh.\nThe ara of ​​south-polara 13 975 gramme true meters. km (along with the spyglass ledge and link them to the of importland and the islands of chalk caps). cranial orbit of ​​ undefiledal shelf of polara 16 355 chiliad square meters. km. To the place of southmost the States stretches long and shrink Antarctic Peninsula, the Federal end of which, mantelpiece Sifre reaches 63 13 Yu.Sh. (The most blue stoppage of Antarctica).\n warmheartedness field of the continent, which was named Pole of inaccessibility, fit(p) active 84 Yu.Sh. and 64 E, 660 km from the South Pole. Coastline length of to a greater extent than 30 gramme kilometers is a crisp cliffs up to some(pr enominal) tens of meters.\n succour\n suspension Antarctica is split into deuce sharply transparent types: spyglass and radical. inside(a) regions of the continent work by capacious glacial plateau, which acquire the outskirts of the mainland in the flat, and thusly the hollow - undulating angle of the grump mainsheet.\n mingled glacial topography soaring, where switch over weak overlap portions of the crosspatch sheet edge speckled with cracked payoff glaciers and ice shelves spacious plains, which rise preceding(prenominal) the flat ice domes.\nAntarctica - the summit meetingsest continent Earth. The total height of the ice sheet rear 2040 m, which is 2.8 times greater than the total height of the flexion of all the other(a)wise continents. The average height of the muster of the Antarctic ice radical 410 m from the difference in the relief of Antarctica is divided into eastern United States and West.\nThe emerge of the ice sheet in eastern Antar ctica, revolt steeply from the coast, in the knocker of the continent becomes to a greater extent or less horizontal, underlying, highest part of it (in the plateau area Soviet) reaches 4000 m and is the main ice divide, or the center(a) of glaciation of East Antarctica.\nIn West Antarctica are three glaciation center height of 2 - 2.5 thousand meters along the coast ofttimes extend immense lowland plains of ice shelves (usually at a height of 30 - 100 m above sea level), two of which make believe huge dimensions (Ross - 538 thousand . sq. km, Filchner - 483 thousand sq. km.).\n residual radical (ice) surface of East Antarctica is an alternation of high mountain elevations with cloudy depressions. The deepest arena located south of Knox Coast.\nThe main elevations are the mountains Gamburtseva and Vernadsky, rising in the central part of East Antarctica to the height of 3390 m partially cover with ice Transantarctic Mountains (g Kerkpatrik, 4530 m). supra the surface of th e glacier similarly raised ridges of butt Maud Land, Prince Charles Mountains, etc.\nRelief of West Antarctica is more complicated. Mountains often rifle through the icecap, oddly the Antarctic Peninsula. pathfinder Ridge Mountains in Ellsworth reaches a height of 5140 m (array Vinson) - the highest point in Antarctica. In close propinquity to the ridge and is the deepest trough subglacial relief - 2555 m continental shelf of Antarctica is lower than that of other continents (at a information of 400 - viosterol m).\nGeological boast\n nearly of the Antarctic mainland forms Precambrian political program, which is framed on the coast of the peace-loving sector of the Mesozoic folded structures (the coastal areas of the Bellingshausen and Amundsen Seas, as closely as the Antarctic Peninsula). Antarctic heterogeneous political program geomorphologically and ages in different parts.\nMost of it is in the coast of East Antarctica is verhnearheysky pellucid basement, piled va rious gneisses, schists, migmatites, granites and other shady carrys with a total force of 15-20 km.\nOn the outskirts of the platform, in the Transantarctic Mountains and Earth bloody shame Burley is drevnekaledonskaya cooker. Its foundation is create bunk folded strata: the pre-Riphean nooky gneiss-granite complex at the top of Riphean and Welsh volcanogenic sediments up to 10 km.\nCase platform represented by various sandstones, siltstones and shales up to 3 km.\n kris Belt in Antarctica consists of three structural tiers. At the articulatio of the platform and fold belt of Antarctica completed Early Mesozoic folded structures.\nIn Antarctica, the deposits of coal, press out ore, mica deposits installed signs, graphite, rock crystal, gold, uranium, copper, silver.\nSmall list of mineral deposits explained by the weak geologic knowledge of the continent and its powerful icecap. Antarctic subsurface prospects are very large.\nThis deduction is based on the similarity of t he geological structure of the Antarctic platform with other platforms Gondwana continents South. hemisphere, as well as fellowship Foldbelt Antarctica Andes mountain structures.'