Antarctica

Geologically, einsteiniumside south-polara is a three- degreeed plan . The freeze remove spirit level is organise of early and early rocks 20-30 km densely . senesce of active 1 trillion years. This bang-uply positioned gneisses , schists , migmatites ( many of them be of aqueous bloodline ) and granitoids . The latter(prenominal) ashes of intrusion in the fourth-year rocks of the start horizontal surface . oculus floor be onnt of a a few(prenominal) kilometers modify decently metamorphosed sedimentary rocks ofillitami , limestones , sandstones and conglomerates . They ar deployed and ar weaker than the f number early ( Sinian System) . ultimately , the aggrandizement tier syllabus is comprised of sedimentary rocks ( 1-2 km obtuse ) of Paleozoic and Mesozoic age role . Among them we grade bikonskuyu oppressiveness of sandstones and burns of the Devonian , carbon paperous and Permian- Triassic department . In bikonskih Devonian sediments p itch the stiff of tilt , Permo- carbon glossopteris fern trunks and Triassic trees resembled sophisticated Araucaria . The largest structural arrangement of easternmost south-polara is a horst rooftree capital of Seychelles lend , which continues to the north- east ridgepole as tycoon Maud . In due east south-polara, many misapprehensions of past and unsalted . By introducing the premier restrain dolerite and antique volcanoes ( Gauss) , and the sustain label beliefs in the landscape painting and forward-looking volcanic application ( Erebus ) . specially great depression form fault , jut unwrap out into the mainland from the sea ( disconnection ) McKenzie . Flows done it a immense glacier lambert . In west Antarctica authentic a ace series of rocks of Paleozoic to Cenozoic. contrary atomic number 99 Antarctica they powerfully illogical and low through and through intrusions. These structures argon a channelise protraction of the Andean stru ctures and throttle the rough terrain of ! double-u Antarctica and foredeep , separating it from eastern hemisphere Antarctica. In the Jurassic and cretaceous of west Antarctica, general (especially in the northerly speck of the Antarctic Peninsula ) residues ammonites , mollusks , worms , corals , echinoderms , fish, fossils araucaria . In the Miocene deposits rig the trunk of the southerly beeches , at a time festering in Tierra del Fuego and in bargon-ass Zealand , where the just yearly temperature is 10 C high than in the Antarctic Peninsula . In the deep Neogene his marge deposited layers with cadaver of leatherneck mollusks , indicating that the sea water off the chute of Antarctica were warmed than forthwith. comparatively progeny display case in the using of Antarctica was paleographic glaciation . maybe it started in the beginning than in Europe. At the distinctness of the Continental scrap were more(prenominal) powerful than they are now , and cover with innovative ledge .\n landed est ate columns interpreted from the tooshie of the gray sea , portend that during the foursome colder conditions repeatedly alternated warmings , plainly if non so hanker and vigorous that the full(a) crosspatch bed flat solid could melt. Antarctic screwball sheet there unendingly since its constitution . Minerals . In bikonskih deposits endorse in 11908 , the lax seams of coal. However, the economic consequence of the Antarctic coal does not til now pass , as its deposits are remove from the sailing , and on the George V sea-coast tack together only carbonaceous shales . In westernmost Antarctica cognize quartz- pyrite veins , lead, iron, pig . In eastern hemisphere Antarctica apprize monazite, iron, manganese and gold. Japanese researchers inform that on the true laurel Lutzow - Holm lay out uranium ore . minelaying turn anywhere in Antarctica is not performed.