Zvakazorodza pasi kweArctic Ocean - chii?

Arctic Ocean - ndiro munyanza, izvo vaiona duku munzvimbo munyika. The nenzvimbo chinzvimbo kweArctic Ocean zviri pachena - riri kuchamhembe hemisphere, munharaunda pakati mikuru makondinendi Eurasia uye North America. By utsinye dziva ichi yakabatana mundima kunyika Denmark, Norway, Canada, USA, Russia.

The dzakawanda chinzvimbo zvinonzi hakunyatsotarisirwi, uye mukati gore pamusoro payo vari nhumbi zvikepe kunyika dzakawanda. Saka, ndiko kusunungurwa kubva pasi kweArctic Ocean?

Mukuru Geological nemamiriro pasi

Utsinye munyanza ane chidukuduku muviri mvura yakadaro chikero kudzika. Anenge makumi mana muzana nzvimbo yaro haina metres hunopfuura mazana maviri. Chii akatsanangura? Kutaura zvazviri, zvose zviri nyore. Zvakazorodza pasi kweArctic Ocean pasherefu yaigarwa 45 muzana Continental kumahombekombe uye akapoteredza makondinendi - 70 muzana.

anokamura sayenzi nyika yedu dura mvura nzvimbo yakadai: kweArctic bheseni (zvakadzamisisa nechepakati mugove), North-European dziva (uye yakatenuka Gungwa Barents), wokuCanada pool (ane mvura nzvimbo Hudson Bay, Baffin Bay, etc ...). Map kweArctic Ocean zvinoita kuti tikwanise kufunga zvose zvinhu izvi zvakadzama.

North European Basin

Mid-yomugungwa anooneka zvikuru nemichinjiziri - hwaro pasi kwakaita nzvimbo yacho kuti chikamu ichi munyanza. Heino zvakare nzvimbo vagadzirisane pamusoro Iceland, riri zvakanaka rakawedzera hydrothermal basa uye volcanism. Ridge Kolbeinsey, Jan Mayen mapazi Mona muhomba pasi maitiro North European bheseni. Pane rwenze uye Voring kupatsanura kupinda nembiya makuru maviri Sea Norwegian. To kumadokero Norwegian bheseni ndiyo wokushambidzira Zimbabwe.

Zvakazorodza penyanza pasi pano zvikuru sandara, asi pano napapo vaifanira kudzika kweArctic Ocean - 5527 mamita.

Canadian dziva

Pakamanikana of Northwest Passage - chikuru chikamu Canada Basin. Kudzika Kwazvo rinosvika 500 metres. Zvakazorodza penyanza pasi panzvimbo ino zvinogona kunzi glacial relict zvokuyamura. The hurukuro neezviwi uye pakamanikana zviri zvikuru kunzwisisa uye akacheka. Zvose izvi zvinoratidza achangopfuura chaizvo (tichishandisa Chokwadi) glaciation pakati penyanza nzvimbo. Uye vazhinji zvitsuwa Canadian Archipelago iri mubasa chando. Hudson Bay harina kudzika, izvozvo kunoratidzwa glacial landforms. Sea Baffina Asi iri pakadzika muchanza ane pasherefu uye kudzika ihuru 2141 m.

Arctic bheseni

Arctic bheseni - ndiko aitungamirira chikamu kweArctic Ocean, izvo ane nzvimbo yakakura chikamu nharaunda yayo. Pasherufu achitora nzvimbo yakakura uye kuva neavhareji makubhiti 800 m, rakakamurwa: Barents, Laptev, Siberian- Chukotskii uye Kara (Mazita pedyo mumakungwa). The sediments uye hunhu hwavo - chinhu chinokosha chipi kuongorora pasi kwakaita nzvimbo yacho penyanza.

The sediments pazasi kweArctic Ocean vari terrigenous hunhu. Most kunayisa wakanaka unaku pano. Iron-manganese uye jecha deposits dzinogona kuwanikwa mamwe mumvura yamakungwa. Ice pabutiro nokuda zvikuru hasha okunze anenge zvose gore Zvisinei kunge pamusoro pemvura zhinji, pane imwe nguva zvinova Mobile kwazvo (ndiro rubatsiro zvikuru wekushandisa).

Chinonyanya ruyamuro kubva White uye Barents Seas

The nenzvimbo nzvimbo kweArctic Ocean chava kutaura hasha dzechiso okunze uye kuoma kurarama mairi. Asi chii chinonzi sechivako pasi guru reko uye kupfuura inozivikanwa ramakungwa? White Sea - kure negungwa muviri mvura, uye ine chaizvo kunzwisisa pasi kwakaita nzvimbo yacho. bheseni Its riri kumucheto kuBaltic Shield uye Russian papuratifomu. 351 metres - nhoroondo kudzika Gungwa White. It ane chinhu muunganidzwa rose nembiya, iyo nguva humwewo vane nzvimbo kudzika mvura. It ane udzamu guru uye Kandalaksha Bay. nharaunda Sea North - yakakwana kudzika mvura udzamu ari kashoma kupfuura 30 mamita. The chivezwa kweArctic mugungwa pedyo neGungwa Barents chinotonyanya zvakaoma. Strong pasi roughness kunokonzerwa kakawanda uye simba fambisa tectonic kwamahwendefa. Pakati pegungwa tiri chikomo - musimboti pamahombekombe, naPerseus. Yakadzika Chikamu munyu dziva iri chete pakati nechepakati pamahombekombe uye Peninsula yeNorthern Europe (dzekuma Scandinavia). Kusimba ndiye M vanopfuura 300. The kumaodzanyemba kwenyika kuzorodzwa unotedza nokuda kutorerwa nzvimbo kwete kare glaciations. Mapeto dziva ukapisa murwi akapeta zvivako akasiyana chaizvo zera (Caledonian, Archean-Proterozoic uye zvichingodaro. D.).

Bottom kwakaita nzvimbo yacho of Kara uye Laptev Sea

The kupfuura kucherechedzwa chinowanikwa kwakaita nzvimbo yacho yeGungwa Kara - pemigero ayo akasangana nguva refu kwazvo (mu dochetverichnye nguva). Nechekuchamhembe gungwa inozivikanwa yakadzika-gungwa zvimwiro. St. Anna ane kudzika 620 m, muchimwiro Voronina - 450 M Central Karskaya chikomo iri chete therebetween ..

South-mabvazuva gungwa shoma chaizvo. It anezvakawanda zvitsuwa. Zvakazorodza pasi kweArctic Ocean pedyo nenyanza yeLaptev, kazhinji kacho ari pasherufu. About hafu kweGungwa ane kudzika 50 mamita. South nzvimbo harina kudzika, pachena, ane zvikomo shoma. Pasinei utsinye okunze, kweArctic Ocean kunocherechedzwa uye unexplored. Mwaka, huchavapo refu kwazvo, pano anoda boka Vatsvakurudzi (avo vanoda kuziva kwakaita nzvimbo yacho iri pasi), uye kunyange mufumi vashanyi. Zvisinei, hunhu panzvimbo ino anonzi chimwe chezvinhu vasanonoka zvipenyu mugadziriro yedu. Masayendisiti akawanda vari kuedza kugadzirisa zvinetso munyanza.