The gargaarka oo ka mid ah dabaqa Atlantic Ocean. Muuqaaladan ugu weyn ee gargaarka ka mid ah dabaqa Atlantic Ocean

Ha ka fikiro si aynu si faahfaahsan gargaarka oo ka mid ah dabaqa Atlantic Ocean. theme Tan waxaa ku jira ilo badan oo la soo bandhigay innaba nabadu jirin. Sidaa darteed khuseeya badan waa su'aasha ah: "? Halkee ayaan ka heli kartaa sharaxaad ku saabsan Badweynta Atlaantik" Mararka qaarkood waxay u baahan tahay daraasad dhamaystiran ee mowduucan. In this article waxaan isku daynay intii suurto gal inay xaalkan soo bandhigno.

Tan iyo markii lagu qeexo muuqaalka guud ee dhulka hoose ee badweynta Atlantic ah, waxaan la soco in Ridge Mid-Atlantic - ay element ugu weyn orographic. Sida laga soo xigtay aagga uu kaliya waa wax yar ka yar seafloor ah (24.6% iyo 37.6% siday u kala horreeyaan). All xigtaa badda in qaybiyaa laba qaybood. ku saabsan siman ee size waxay ka mid yihiin. macluumaad guud oo ku saabsan Badweynta Atlaantik, iyo sidoo kale aqoon guud ee juqraafiga kuu ogolaaneysaa in aad si fiican u fahmaan waxa ku jirta in this article. Si aad u si fiican u matalaan meesha uu badda, taas oo aan ku mashquulsan yihiin, waxaanu kuu soo jeedinaynaa in ay ogaadaan waxyaabaha kaarka.

Si galbeed ee xigtaa dhexfurka

Newfoundland xigtaa ku yaalla galbeedka xigtaa bartamihii Bad-ka. Oogada ee Rio Grande, kor Ceará, Ridge Barracuda iyo banka Bermuda ah, iyo sidoo kale saadaasha ah Ridge Mid-Atlantic iyo margin qaaradda hoos biyo, kala qaybin badh galbeed ee dabaqa badda si ay u Argentina, Brazil, Guiana (Guyana ah), North American, Newfoundland iyo Labrador Basin ah . Norwegian-Greenland Basin iyo Badda Baffin waxaa sida caadiga ah loo tixgeliyaa sida qeyb ka mid ah a badaha kala duwan - Arctic ah.

Labrador iyo Newfoundland Basin

Waxaan sii wadi sheekada in uu yahay gargaarka ah oo ka mid ah dabaqa Atlantic Ocean. Si kooban u sharax labada maddiibadihii - Newfoundland iyo Labrador (qoto dheer ugu badan ee la soo dhaafay - 5160 mitir). Waxay yihiin, dhab ahaantii, ka koobnaan hal unug. Inta badan oo iyaga ka mid degan Caraabaah oo guri abyssal. In jihada suusho sub u gudbo dooxada abyssal Hazen. Newfoundland Basin ka xigtaa koonfureed ee isku magaca gaashaan. Isagu waa, sida lagu muujiyey by waxbarasho loomana baahno seismic ku kala duwan waa raasamaal ee foomka a Rafaa, kaas oo la xidhiidha dhaqdhaqaaqa hadda qoto-badda wax ku aasan.

maddiibadihii American North, Guiana iyo Ceará

North American Basin - taasi waa mid ka mid ah maddiibadihii ugu weyn in calaamadee gargaarka oo ka mid ah dabaqa Atlantic Ocean. Sharax kooban oo dhanba sii wadi doonnaa sheeko. si qoto dheer ugu weyn ee weysada waa 7110 mitir. Bermuda taagga waxa uu ku yaalaa ku dhawaad ee xarunta of qayb ka mid ah waqooyiga. Waxa kale oo ay iftiimiyeen Corner Kobenhagen Massif (haddii kale loo yaqaan dhifashada angular) iyo Buur Kelvin. Caraabaah abyssal galgaloolan ka Bermuda kordhiyay taagga ah xagga koonfureed. Ubucda ah oo weel ku jira bannaanka abyssal guri Nares, Hatteras iyo catfish. North American Basin wadaagtaa dhinaca koonfur-galbeed ka Ridge Blake-Bahama, iyo sidoo kale dibadda usheeda dhexe ruux.dalka. Last kordhiyay weheliyaan Rico Puerto ah xabaal. Waxay kala sooco, la xigtaa blocky Barracuda, ee ku taalla ay cidhibta, iyo maddiibad Guiana ka soo North American. Loogasoo terrigene aasan wax bixisaa horumarinta dhowaad caalamiga ah ee bannaanka abyssal guri loo yaqaan Demerara Caraabaah gudahood Guiana godan. Guiana Basin ayaa si qoto dheer ugu badnaan 5109 mitir ee ka qeyb waqooyi-galbeed, taas oo ah waxa lagu gartaa inta badan buur ah. qaadista Small yimaa-Ceará adag by marno quuska, waxaa la soocay weysada of Ceará. si qoto dheer ugu weyn waa final 4700 mitir. hoose ee weysada ayaa waxaa kujira Caraabaah oo guri ee isku magaca. Waa in la ogaadaa kale 2 dooxooyinka abyssal. Tani waa Wild, kaas oo si qoto dheer qalay gaadho 250 mitir (xira maddiibadihii Guiana iyo North American) iyo Pernambuco (xiriirisa Basin Brazil iyo Guiana).

Brazil Basin

iyo maddiibad ugu weyn ee qaybta galbeed ee badda - Brazil. Halkan, ka gargaar oo ka mid ah dabaqa Atlantic Ocean inta badan buur ah. On bannaanka Pernambuco, meel yar oo berkeddii weysada, waa sida cawbaar. marno Villarreal waa hannaanka jira xeedhada Brazil. Qaar ka mid ah u kaca heerka badda, la xirrira jasiirad Kobenhagen (aad Martin, Trinidad, Fernando de Noronha). Latitudes meesha goobaha qalad waa seamounts ku xiran.

Brazil Basin laga soocay banka koonfureed ee Rio Grande ka Argentine. Aad u adag dhul ee banka. seamounts Individual kici kor ku xusan meelaha taagga-sida.

qayb Bari ayaa qaab xigtaa ah, cidhiidhi ah, guri-kaalinta. Waxay kala jihada suusho. Inta u dhaxaysa margin Continental of South America iyo banka waddaa Wim - dooxada abyssal kaas oo biyaha webigu ka hoose ee Argentina ku jira xeedhada Brazil. Qayb ka mid muhiim ah xagga hoose ee Argentine ka qaadataa Caraabaah dhireedku. Flat, Caraabaah abyssal dhuuban ayaa ku yaalla geesta galbeed ee berkeddii weysada iyo waxa uu ku yaalaa ee qaybta koonfureed ee ugu accumulative U-qaabka ugu weyn - xigtaa a Sapiola. Its formation waxa uu la xidhiidhaa keeno nefeloidov iyo faar hoose ka badan Antarctic ah. In weysada Argentine ee seamounts weyn oo aan la heli karin, si kastaba ha ahaatee, profiles loomana baahno seismic gudbiyo macluumaad dhowr buuraha, sarajooggiisuna qaraabo gaaro 2-2.5 km, aaseen lakabka ah ee Texas.

usheeda dhexe dibadda Yuzhnoantilsky - uplift Ovodova, oo ku yaalla koonfurta Basin reer Argentina. African-Antarctic Basin koonfurta ku taalla, ee u dhexeeya Jacaylku iyo tiixtiix bartamihii Bad-. soohdinta guud dhexeeya Badweynta Hindiya iyo Atlantic agagaarka qaadeen 20 ° ee. d. Marka la eego this xadka, kaliya qaybta galbeed ee weysada la Cad guri abyssal yeedhay Weddell waxa uu ku yaalaa Badweynta Atlaantik. Relief hills abyssal caadiga ah ee qaybta waqooyi ee xeedhada.

Taasi waa at qoto dheer ee Badweynta Atlantic ee qaybta bari waxaa ka mid ah?

The gargaarka ee dabaqa badda waa arrin adag iyo Nuurre Aw, oo ka kooban xubno ka badan. Atlantic Ocean waa laga reebo lahayn. Isagoo sariirta ku qaybta bari waxa lagu gartaa joogitaanka lateral ama Azores-Biscay xigtaa isugu soo Gorringe, kor Verde Cape ee Islands iyo jasiiradaha Canary ah, Oogada Sierra Leone, Guinea iyo xuudka wiish xigtaa. Waxay qayb ka dhan bari ee badda kala qaybiyaan si ay Yurub (qoto dheer ugu badnaan - 5023 mitir) ee reer galbeedka, Canary (6549 mitir), guulo (5815 mitir), Sierra Leone (6040 mitir), Cape Verde (7282 mitir), Angola (6050 mitir), Guinea (5215 mitir) iyo Cape ee (5457 mitir) weysada. Inta u dhaxaysa Rockall, quruxsan quuska iyo Iceland-Faroe marinka Western Yurub waa godan.

West Yurub Basin

hoose ee weysada - Caraabaah abyssal inta badan buur ah, oo kaliya in ay Bay ee Biscay, iyo sidoo kale in waqooyi-galbeed waxaa ka mid ah fidiyey Caraabaah guri ee Bizkaia. North si hoose koonfurta jeex jeexi abyssal weyn Dolinoy Mori, kuwaas oo dhererkeedu wuxuu ku saabsan yahay 3500 km. Waa morphologically la mid ah dooxada Hazen. dooxada waxaa la socda in ka badan ah fallaadhihii accumulative weyn, oo gaarey height ah 50 mitir. Laba nooc raasamaal weyn u istaagaan soo baxay ee qaybta waqooyi ee xeedhada. Tani 'tiixtiix ku aasan "Feni iyo Gardar. Ay formation waxa uu la xidhiidhaa awoodda soo galaan wax ku aasan marinka Iceland-Faroe. Guulo godkii, yar oo ku size, waxaa ka shaqeeya qaybta guri dhexe Bannaanka abyssal. Iyada oo Biscay Caraabaah waxaa isku xira waadi TET.

Dhanka koonfureed waxay of Basin guulo ka

The gargaarka ee hoose ee Badweynta Atlantic ee xagga koonfureed oo dalka Basin guulo waa mid aad iskutallaabta. Waxaa saamayn ku joogaan halkan of xigtaa Gorindzh ah, oo buurta block-Kobenhagen oo gujis ee isku magaca, kor Madeira iyo koox ka mid ah seamounts kale. Muuqaaladan ugu weyn ee gargaarka ee seafloor ee Atlantic ee degaanka ayaa sidoo kale waxaa ka mid ah joogitaanka badan marno gujis. In dhismaha oogada hoose ee Zelenomysskoy qodnayd oo Canaria ballaaran (qoto dheer ugu badan ee 6549 mitir) waxa loo qaybin karaa saddex qaybood submeridional: bari, qolof Oceanic gudahood kaas oo la daboolay oo gebi ahaanba sloped qaaradda cagta Caraabaah; bannaankii abyssal celcelis ahaan, guri iyo cidhiidhi, galbeed rogid. Xubno ka margin qaaradda Afrika ayaa sidoo kale uplift Kobenhagen ee Islands ee Canary (4 marno firfircoon - mid ka mid ah) iyo Cape Verde Islands la volcano firfircoon. Waxaas oo dhan iyo in ka badan ben la qoto dheer ee Badweynta Atlaantik.

xawaare aad u sarreeya (7-7,3 km / s) of hirarka seismic kala duwan u qaadaya Sierra Leone. Tan waxa u sabab sal-galay dhagaxyada ultrabasic qolof ah iyo sidoo kale la metamorphism xoog dhagaxyada of kiliyaha kala duwan. hoose oo ka mid ah maddiibadihii sida Guinea iyo Sierra Leone, qabsadeen bannaanka guri, kuwaas oo ku hareereysan hills abyssal. si qoto dheer ugu weyn ee Niyadjabka, kuwaas oo siday u kala horreeyaan waa 5212 iyo 6040 mitir.

Cameroon zone qalad

quruxsan Guinean Wide kala ee-bari woqooyi ee banka dhagax dab ah, oo baaxad weyn oo ku yaalla qaybta bari ee Mid-Atlantic ee Ridge, meel u dhow Saint Helena. Cameroon zone qalad waa qayb ugu caan ku wiish this. Waxaa la xidhiidha qaababka Kobenhagen seamount Shirshov iyo jasiiradaha Palanga, Principe, Sao Tomé iyo Macias Nguema ,, Biyogo. Rift Valley dheeraad ah kala gudahood qaaradda Afrika. Cameroon, volcano firfircoon, iyo dhowr Central Sahrawi, ka mid ah taas oo sidoo kale ay jiraan falal la xidhiidha la.

Angola Basin

hoose ee oo ku taala si ay koonfur-bari iyo koonfur ee Guinea, kor weysada Angola ayaa sidoo kale hor istaagay tareenada inta badan dhiiran cagta ee barriga, oo ay ku jiraan koorta qashin Congo baaxad weyn, waadi ah quuska. seamount Group oo ku yaalla geeska koonfureed ee Basin Angola ah. buuraha waxay leeyihiin saldhig caadiga ah. The ugu weyn iyaga ka mid ah - ee Vyurst (sarajooggiisuna qaraabo ku saabsan tahay 4 km).

Walvis xigtaa

Walvis Ridge - buur-dhismeedka blocky. Waxay ka kooban tahay saddex blocks waaweyn, kuwaas oo kala by saddles. xigtaa nibiriga lagu gartaa simay dusha Boodaynin iyo dhaadhacyadii uga yaacday. Midayso dusha Boodaynin xiran weyn (iyo laga yaabee in ugu weyn) degree column la raasamaal limescale.

Cape Basin

Oo ku yaalla koonfurta Walvis Ridge Cape Basin waxa lagu gartaa xaqiiqada ah in halkan oo horumarsan inta badan hills abyssal gargaarka. Intaa waxaa dheer, waxyaalaha moolka dheer oo Badweynta Atlantic halkan khatar badan oo buuraha Kobenhagen. Waxay yihiin inta badan ee qaybta koonfureed ee xeedhada. Kooxda buuraha Information kala Sooco ka weysada Cape Agulhas Basin. Agulhas waxaa loo arkaa inta badan qayb ka mid ah sariirta ee Badweynta Hindiya. Waa morphologically la mid ah Cape Basin ah.

Haddaba aad u ogaato nooca dhul hoose ee Badweynta Atlantic uu leeyahay xilligan la joogo. Waxa uu si tartiib ah la beddelo, inkasta oo ay isbedel la taaban karo qaadanayso meel aad si tartiib ah. qaaradood oo dhan ka dib waxaa la timi xawaare ka mid ah oo kaliya oo ku saabsan 1-2 cm sanadkiiba. hababka kale ee in ay gacan in ay, iyo sii wadi aad si tartiib ah. Sidaa darteed, qaababka ugu muhiimsan ee gargaarka ka mid ah dabaqa Atlantic Ocean bedelin.

Maxaa sharxayaa muuqaalada gargaarka ee Badweynta Atlantic ah?

Waa maxay sababta hoose ee gargaarka waa waxa uu yahay? Aynu u wajihi. Features in ay leeyihiin gargaarka ee dabaqa badda, saynisyahano hadda awoodaan si ay u sharxaan sababaha gaarka ah. Gaar ahaan, Badweynta Atlaantik la rumeysan yahay inuu la aasaasay oo sabab u ah khilaaf ka furay ilaa bartamaha degaanka xigtaa ah ee Mid-Atlantic ee. Dhamaan sifooyinka of qaabka iyo muuqaalka guud ee dhulka ee dabaqa badda ay sabab u tahay xaqiiqada ah in 4 taarikada ugu muhiimsan (Antarctic, Afrika, Eurasian iyo American) ayaa wadajir u dhaqaaqay.

Taariikhda waxbarasho ee Badweynta Atlantic waxay bilaabeen in wakhtiyadii hore. Dhanka kale, waxa ay si qoto dheer waxaa weli si buuxda looma fahmin. Waxaa macquul ah in taariikhda Badweynta Atlaantik ay sii wadi doonto in ay wax ka barato daahfurtay cusub oo xiiso leh.