The taimako na kasa na Arctic Ocean - abin da yake da shi?

Arctic Ocean - shi ne teku, wanda aka dauke da karami a yankin a duniya. A ɓangaren da na Arctic Ocean ne bayyananne - shi ne dake arewacin yammancin duniya, a cikin ƙasa na tsakiya daga cikin manyan nahiyoyin na Eurasia da kuma Arewacin Amirka. By wannan matsananci kandami dab da yankin kasashen na Denmark, Norway, Canada, Amurka, Rasha.

The duniya halin da shi ba a kayyade, kuma a cikin shekara a kan shi ne kaya jiragen ruwa na kasashe da dama. To, ta yaya ne taimako na kasa na Arctic Ocean?

A general ma'aunan kasa tsarin da kasa

Harsh teku yana da matukar kananan jiki na ruwa zuwa ga irin wannan a sikelin zurfin. Aƙalla arba'in bisa dari na ta yanki ne ba zurfi fiye da biyu da ɗari mita. Mẽne ne ya bayyana? A gaskiya, duk abin da yake da sauki. The taimako na kasa na Arctic Ocean shiryayye shagaltar da 45 bisa dari na nahiyar gefe da kewaye nahiyoyi - 70 da cent.

A kimiyya na kasar mu ya raba tafki ruwa yanki kamar: Arctic tasa (mafi zurfi tsakiyar rabo), Arewa-Turai pool (da gangaren Barents Sea), Canadian waha (da ruwa yankin na Hudson Bay, Baffin Bay, da dai sauransu ...). Map na Arctic Ocean sa ya yiwu don la'akari da duk da wadannan abubuwa a cikin daki-daki.

Arewa Turai Basin

Mid-teku ridges - tushen da kasa topography na wannan bangare na teku. Ga kuma da sabani yanki na Iceland, wanda shi ne mai kyau da karin hydrothermal aiki da volcanism. Ridge Kolbeinsey, Jan Mayen zone Mona kunya kasa fahince ta Arewa Turai tasa. Akwai tudu da Voring rarraba cikin biyu manyan daruna Norwegian Sea. Don yamma da Norwegian tasa ne tasa Greenland.

The taimako daga cikin teku bene a nan shi ne mafi lebur, amma a nan da can a kalla zurfi na Arctic Ocean - 5527 mita.

Canada pool

A straits na Arewa maso yamma nassi - wani muhimmin bangare ne na Canada Basin. A zurfin na Straits kai mita 500. The taimako daga cikin teku bene a wannan wuri za a iya kira glacial relict taimako. A shaci daga cikin tsibiran, kuma straits ne musamman hadaddun da aka yanke. Duk wannan ya nuna sosai kwanan nan (mun gwada, ba shakka) glaciation daga cikin teku yankin. Kuma da yawa daga cikin tsibiran na Canada tarin tsiburai ne ma tsunduma a cikin kankara. Hudson Bay ne m, shi ne halin da glacial landforms. Sea Baffina bambanci, ya ta'allaka ne a cikin zurfin m, da ciwon shiryayye, kuma mai girma zurfin kai 2141 m.

Arctic tasa

Arctic tasa - ne a manyan ɓangare na Arctic Ocean, wanda ya mamaye wani babban ɓangare na da karkararta. Shiryayye mamaye wata babbar yankin da kuma ciwon wani talakawan nisa na 800 m, ne zuwa kashi: Barents, Laptev, Siberian- Chukotskii da kuma Kara (Names of m tekuna). A sediments da kuma halinsu - wani muhimmin kashi na wani bincike na kasa topography daga cikin teku.

A sediments a kasa na Arctic Ocean ne terrigenous hali. Mai hazo nan lafiya irin zane. Iron-manganese da yashi adibas za a iya samu a wasu ruwayen tekuna. Ice murfin saboda da wuya ƙwarai da gaske yanayin damina kusan duk shekara ya kasance a kan ruwan teku, duk da haka, a wasu nufi shi ya zama mai hannu (wanda shi ne babban taimako ga kewayawa).

A kasa taimako na White kuma Barents Tekuna

A ɓangaren da na Arctic Ocean An riga magana game da haƙƙinsa da sauyin yanayi da kuma wahala na rayuwa a cikinsa. Amma abin da yake da tsarin da kasa na da most da kuma shahararrun tekuna? White Sea - m jiki na ruwa, da kuma shi yana da matukar hadaddun kasa topography. Its tasa aka located a gefen Baltic Shield da Rasha dandali. 351 mita - mai rikodin zurfin White Sea. Yana yana da shi a dukan tarin daruna, wanda kullum madadin tare da wuraren m ruwa. Yana yana mai zurfi da Kandalaksha Bay. Arewa Sea yanki - cikakken m ruwa zurfin ne ba safai ba fiye da mita 30. The taimako na Arctic seabed a cikin kusanci da Barents Sea ne ma fi wuya. Strong kasa roughness lalacewa ta hanyar m da karfi ƙungiyoyi na tectonic faranti. A cikin tsakiyar teku ne mai tudun - Babban Bankin, Perseus. A zurfin ɓangare na gishiri kandami is located kawai tsakanin babban bankin da kuma sashin na arewacin Turai (Scandinavia). A zurfin ne fiye da 300 m. A kudancin sauƙi ne smoother saboda suna dauka wuri ba haka ba da dadewa glaciations. Karkata kandami suya folded gidaje ne sosai daban-daban shekaru (Caledonian, Archean-Proterozoic da sauransu. D.).

Kasa topography na Kara kuma Laptev Sea

A mafi recognizable alama na topography na Kara Sea - ta ramuka ci karo da wani sosai tsawon lokaci (a dochetverichnye sau). A arewacin teku ne sananne ga zurfin teku kududdufai. St. Anna yana da zurfin 620 m, trough Voronina - 450 m Tsakiya Karskaya dutse kawai therebetween ..

Kudu-maso-gabas teku sosai m. Shi yana da yawa tsibirin. The taimako na kasa na Arctic Ocean kusa da Laptev Sea, domin mafi yawan bangare ne shiryayye. Game da rabi na Sea yana da zurfin mitoci 50. Kudu yanki ne m, a fili, da 'yan duwatsu. Duk da matsananci yanayi, da Arctic Ocean ba ya je kada a gane shi da kuma unexplored. A kakar, wanda yana da matukar tsawo, a nan m kungiyar masu bincike (wadanda suke so su sani cikin topography na kasa), har ma da arziki yawon bude ido. Duk da haka, yanayin wannan wuri da aka dauki daya daga cikin mafi m muhalli tsarin na duniya tamu. Masana kimiyya da dama suna kokarin warware matsalar teku matsaloli.