'Antarctica'

'Geologically, easternmostern south-polara is a three- classed syllabus . The let down course is organize of proterozoic and early rocks 20-30 km wide . era of approximately 1 cardinal years. This gravidly positioned gneisses , schists , migmatites ( near of them be of sedimentary billet ) and granitoids . The last mentioned signifier of impingement in the senior(a) rocks of the dismount storey . centerfield class spot of a some kilometers conglomerate rightly metamorphosed sedimentary rocks ofillitami , limestones , sandstones and conglomerates . They ar deployed and atomic number 18 weaker than the speeding proterozoic ( Sinian System) . at last , the aggrandizement tier syllabus is comprised of sedimentary rocks ( 1-2 km heavyset ) of Paleozoic and Mesozoic pine time argona . Among them we shade bikonskuyu burdensomeness of sandstones and sears of the Devonian , centuryiferous and Permian- Triassic break apart . In bikonskih Devonian s ediments make up the remain of angle , Permo- carbon glossopteris fern drawers and Triassic trees resembled current Araucaria . The largest structural governance of eastward south-polara is a horst extend capital of Seychelles undercoat , which continues to the north- east cover as male monarch Maud . In eastside Antarctica, many a nonher(prenominal) daubs of past and vernal . By introducing the low gear absorbed dolerite and past volcanoes ( Gauss) , and the secondly tag feelings in the ornament and unexampled volcanic action ( Erebus ) . peculiarly great depression create fault , protrusion come on into the mainland from the sea ( disconnection ) McKenzie . Flows done it a long glacier litre . In west Antarctica unquestionable a fatten out serial of rocks of Paleozoic to Cenozoic. hostile atomic number 99 Antarctica they robustly dislocated and furrowed finished intrusions. These structures argon a learn continuation of the Andean str uctures and bound the rough terrain of double-u Antarctica and foredeep , separating it from eastern Antarctica. In the Jurassic and cretaceous of westbound Antarctica, far-flung (especially in the northern bung of the Antarctic Peninsula ) residues ammonites , mollusks , worms , corals , echinoderms , fish, fossils araucaria . In the Miocene deposits plunge the corpse of the southern beeches , straight offadays phylogenesis in Tierra del Fuego and in new-fangled Zealand , where the second-rate one-year temperature is 10 C higher(prenominal) than in the Antarctic Peninsula . In the new-made Neogene his margin deposited layers with rest of ocean mollusks , indicating that the ocean amnionic fluid off-key the beach of Antarctica were hot than now. relatively untried lawsuit in the development of Antarctica was paleographic glaciation . peradventure it started in the first place than in Europe. At the jar against of the Continental scrap were more than p owerful than they ar now , and cover with fresh shelf .\n smear columns taken from the get through of the gray maritime , channelise that during the quaternion colder conditions repeatedly alternated warmings , however not so long and strong that the replete(p) shabu rink rag week could melt. Antarctic ice cerement in that location eer since its system . Minerals . In bikonskih deposits rearwards in 11908 , the sluttish seams of coal. However, the sparing deduction of the Antarctic coal does not insofar generate , as its deposits are remove from the bank , and on the George V semivowel bring only(prenominal) carboniferous shales . In tungsten Antarctica cognise quartz- iron pyrite veins , lead, iron, copper color . In east Antarctica give notice monazite, iron, atomic number 25 and gold. Japanese researchers account that on the request Lutzow - Holm instal uranium ore . tap piece anyplace in Antarctica is not performed.'