Ithambeka lizwekazi - it ... Iimpawu isakhiwo kunye neentlobo kwithambeka lizwekazi

Ocean iqulathe izinto eziliqela noshowo. Ithambeka lizwekazi - oku ngomnye wabo. Yintoni na yaye uphi na? Oku uya kufunda kweli nqaku.

Ithambeka lizwekazi - nto ...

izifundo beJografi ilizwe kuphela, kodwa into yokuba ibekwe phantsi kwamanzi. Ngokukodwa, ukufunda mphandle kwamanzi ulwandle yokuziqeqesha ekhethekileyo yenzululwazi - eliJongene.

Ocean umgangatho siquka iindawo ezininzi noshowo. Ithambeka lizwekazi - oku yeyona ndawo lenguqu phakathi kwithala indawo ngasentla, kwaye ebizwa ngokuba umandlalo wolwandle, sise emazantsi. Kwi-avareji, ukuba ibekwe kubunzulu ezisuka 200 ukuya kwiimitha ezili-2000.

Kwazo, ithambeka lizwekazi - nokuqhubekeka olunemiqathango yelizwe lizwekazi. Olu hlobo kwamanzi namageduka yohlukile kumathambeka kakhulu eweni, nto leyo degrees 30-40. Amaxesha amaninzi kube nzima omkhulu ezinamatye amanyathelo, anamandla, imiqela namawa. Amaxesha amaninzi afumaneka kwi landslides kwithambeka kunye kwamanzi yelizwekazi ukuba kwenzeka phantsi amanyathelo womxhuzulane.

Ithambeka lizwekazi - oku inxalenye elimxinwa ngokwentelekiso kwintsele yolwandle Noko ke, leyo ke, malunga ne-12% ye elwandle.

Iimpawu ze isakhiwo kwithambeka lizwekazi

Kuba kumathambeka zwekazi ayikho uphawu kumphezulu egudileyo. Kwelinye icala, i element emazantsi ukukhululeka ezahlukeneyo lalingqingqwa kwaye ngobulungisa ezaphukileyo enzonzobila. Kuyinto eqhelekileyo gqitha ukubona nemiwonyo enzulu neentlambo. Kunye kwithambeka eliphezulu badla ezitshibilizayo izihlwele ezikhulu elulwalweni, ukwakha fluxes turbid nemisinga.

Ithambeka lizwekazi kwiindawo ezahlukeneyo zehlabathi asingabo efanayo yaye zahluke nobunzulu, ubude kunye exandekeni. Umzekelo, kufuphi nonxweme Australia ubunzulu kwithambeka lizwekazi inokuba iikhilomitha ezintlanu ububanzi 150-200 km. Kodwa kufuphi kwithambeka lwezwekazi eMzantsi Afrika yahluka libizwa isakhiwo asinde.

isigaba Huge zasemanzini Abafoti qhuma ngaphandle i-Arctic Ocean. Apha, kude ngaphantsi kwamanzi iya Chukchi Cap, apho waba abut lwamawa enamandla kwamanzi.

Eyona eziphambili ze kumathambeka yezwekazi

Izazinzulu ngokuqhelekileyo wababela bonke kwithambeka lizwekazi ngokwendidi ezintathu genetic:

• denudation;
• numbers;
• denudation-numbers.

Xa amathambeka elizwekazi iinkqubo denudation ngabona uhlobo ukutshatyalaliswa rock. Kunoko numbers, ukongamela inkqubo ukuqokelelana izinto zomhlaba. Kwithambeka lwezwekazi olu hlobo idla luqulathe neetyuwa clastic okanye esantini. Denudation-numbers amathambeka yelizwekazi zimele uhlobo lenguqu phakathi embodiments ngentla kumathambeka.

Ngokubanzi, engundoqo "abanikelayo" zejoloji sedimentary izinto nayiphi na kwithambeka lizwekazi le kwithala. Rocks zohlanjwa kwamanzi yaye uhlale ngezantsi kweengqimba nende ezahlukeneyo.