ipacific Ocean

ipacific Ocean

Nangona zonke iilwandlekazi zehlabathi zinokuthathwa njengezinye ekubeni iplanethi yoMhlaba ubukhulu becala igutyungelwe ngamanzi, i ipacific Ocean ivela elwandle olukhulu. Lelinye lamacandelo eplanethi ahlala kumhlaba oziikhilomitha ezingama-15.000. Ulwandiso lwayo luqala ukusuka ulwandle olungqongqo kwaye ifikelela emanzini asemazantsi e-Antarctica asele sele engumkhenkce. Phakathi kwamanzi ayo kukho iziqithi ezingaphezu kwama-25.000 ezikumazantsi eikhweyitha zomhlaba. Oku kulwenza ulwandle lube nelona nani likhulu leziqithi kunolwandle lonke oludibeneyo.

Kweli nqaku siza kukuxelela zonke iimpawu, imvelaphi, izilwanyana kunye nezilwanyana zoLwandlekazi lwePasifiki.

Imvelaphi yoLwandlekazi lwePasifiki

Iimpawu zepacific

Kukho iingcinga zenzululwazi ezithi amanzi akhoyo kwiplanethi yethu aqala ukuvela ngenxa yesiphumo sentaba-mlilo nganye enamandla ajikelezayo abandakanya ukufezekiswa kwendalo yonke. Oku kuthetha ukuba malunga ne-10% yawo onke amanzi akhoyo kwiplanethi sele ekho kwimvelaphi. Nangona kunjalo, isasazeka ngokungaphezulu kwindawo yonke.

Olu lwandle, nanamhlanje, iseyenye yezona zingaziwayo kwindawo yejoloji. Enye yeethiyori esetyenziselwa ukusayina ukuzalwa kwePasifiki kukuba kwenzeke ngenxa yokudibana kwamacwecwe athile avumela ukudibana. Kolu manyano lwezityalo, kwenziwa umngxuma ukuze udaka luqine ukuze kusekwe ezona ziseko zolwandle zibanzi emhlabeni.

Akukho bungqina bokuba le yenzekile kanjalo kodwa yenye yezona zinto zithandwayo namhlanje. Kwaye kunzima kakhulu ukubonisa lethiyori kunye nayiphi na enye. Enye ithiyori malunga nemvelaphi yoLwandlekazi lwePasifiki ivela kwiqela labafundi abacebise ukuba xa kuvela isitya esitsha setectonic, siveliswe ngokudibana kwabanye ababini ngempazamo. Kwimeko yala macwecwe, iya emacaleni kwaye ivelise imeko engazinzanga ethi ivele kuyo indlela okanye umngxuma. Kulapha apho olu lwandle lwaluza kuvela khona.

Iimpawu eziphambili

Unxweme lwePacific

Siza kugxininisa ezona mpawu ziphambili kuLwandlekazi lwePasifiki. Ngokubhekiselele kwindawo, ngumzimba omkhulu wamanzi kunye neempawu zetyuwa ezivela kummandla we-Antarctic ukuya kumntla we-Arctic. Banwenwela nakwintshona yeOstreliya naseAsia kwaye bafikelela emazantsi nasemantla ezwekazi laseMelika kwicala lasempuma. Singatsho ukuba imida yayo isentshona kunye ne-Oceania kunye neAsia nasempuma neMelika.

Ngokumalunga nobukhulu bayo, sithe lolona lwandle lukhulu emhlabeni kwaye luhambelana nendawo ye-161,8 yezigidi zeekhilomitha, ubunzulu ukuba Amanqanaba aphakathi kwe-4280 yeemitha kunye ne-10 924 yeemitha. Eli nani lokugqibela lihlala litshintsha kuba lifumaneka kwi- Umsele kaMariana  kwaye ukukhutshwa kwenzelwa ixesha ukuba kungangena nzulu.

Ekubeni inomthamo wama-714 839 310 weekhilomitha ezili-cubic, ikuvumela ukuba ufezekise ubutyebi obukhulu ngokwemiqathango yokwahluka kwezinto eziphilayo. Inkqubo yayo yendalo icebile kwindalo kwaye oku kuyenza ibaluleke kakhulu kubume behlabathi.

Ijiology kunye nemozulu

iziqithi zolwandle lwePacific

Siza kuhlalutya ukuba zeziphi izinto ezakhiweyo kunye nokwakheka komhlaba. Ulwandlekazi lwePasifiki lolona lwandle ludala nolona lubanzi. Inokubhalwa kwiminyaka emalunga nezigidi ezingama-200 eyadlulayo. Phakathi kwezona zinto zibaluleke kakhulu kulwakhiwo lwethambeka lwelizwekazi kunye nebasin, zilungiselelwe ukubulela kwizenzeko ezahlukeneyo zejoloji ezenzeka kwiindawo ezikufuphi nemiphetho yeetectonic plates.

Ishelfu yayo yelizwekazi imxinwa imimandla ethile yoMzantsi Merika noMntla Merika, kodwa ububanzi e-Australia nase-Asiya. Kule ndawo, isixa esikhulu sobutyebi sihlala siqokelelene kokubini kwiyantlukwano kunye nakwizinto zejoloji. Embindini woLwandlekazi lwePasifiki kukho intaba yeMesoceanic enolwandiso lweekhilomitha ezingama-8.700 kwaye ifumaneka kwiGulf of California ukuya emazantsi entshona yoMzantsi Merika. Ihlala inobude obuphakathi kweemitha ezingama-2130 ngaphezulu kolwandle.

Ngokubhekisele kwimozulu, ubushushu bayo bunokumiselwa kwimimandla eyahlukeneyo yemozulu. Ngokukodwa, ichazwa kwimimandla ye-5 yemozulu. Sinommandla weetropiki, ubungakanani baphakathi, indawo yesiphepho, ummandla weemvula kunye neikhweyitha. Imimoya yorhwebo ikhula kububanzi obuphakathi kwaye ikumazantsi nakumantla eikhweyitha. Iqondo lobushushu aligungqi unyaka wonke kwaye liphakathi kwama-21 nama-27 degrees.

Iintyatyambo kunye nezilwanyana zoLwandlekazi lwePasifiki

Kudla ngokukholelwa ukuba amanzi oLwandlekazi lwePasifiki ahlukile kwaye azolile. Nangona kunjalo, nayiphi na indawo, nkqu ipelagic, yahluke kakhulu njengayo nayiphi na enye indalo yomhlaba. Apha imisinga eyahlukeneyo yaselwandle ibonakala kwaye, ke, utyani buba sesona sibonelelo sokutya sibaluleke kakhulu kwizilwanyana zaselwandle. Amanzi olwandle kunye nee-chlorophytes zininzi. Bahlulahlula ulwelwe oluhlaza olubandakanya ukuya kuthi ga kwi-8200 yeentlobo kwaye zibonakaliswa ngokuba ne-chlorophyll a kunye no-b. Kukho izixa ezikhulu ze-algae ebomvu eziphawulwa ziithoni ezibomvu ngenxa yombala we-phycocyanin kunye ne-phycoerythrin.

Ngokumalunga nezilwanyana, kuba ulwandiso lwayo luyoyikeka, igcina amawaka eentlobo, ngakumbi iintlanzi. Apha iplankton sisiseko sakho konke ukutya kunye newebhu yokutya. Uninzi lweentlobo ezenza iplankton ziyabonakala kwaye zibonisa imibala xa ujongwa ngemicroscope. Imibala ihlala isusela kubomvu ukuya kuluhlaza okwesibhakabhaka. Ezinye zazo zinokukhanya ngenxa yokuba kukho iindawo ezinzulu apho ukukhanya kwelanga kungafikeleli khona. Kwizilwanyana zaselwandle kukho zonke iintlobo iintlanzi, ookrebe, ii-cetaceans, ii-crustaceans, njalo

Ndiyathemba ukuba olu lwazi ungafunda ngakumbi malunga noLwandlekazi lwePasifiki kunye neempawu zalo.


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