AmaLwandle amakhulu eNyakatho Melika

Izwekazi lesithathu elikhulu kunazo zonke emhlabeni wethu omuhle emhlabeni - iNyakatho Melika - izinkumangalo ngokubambisana kwempucuko kanye nemvelo engathandeki. Ezindaweni eziseduzane nezindawo ezinabantu abaningi, izimo zemvelo zihlala ziqinile: amahlane ashisayo, amabhishi asendle, amadlelo avundile, izigodi ezikhulayo. Lapha ungabona amachibi aseNyakatho Melika - enkulu kunazo zonke futhi ehloniphekile emhlabeni wonke.

Ukuphana kwemvelo ezweni jikelele kubonakala kuyo yonke into: izihlahla ziyamangala ngokuphakama okungakaze kube khona, izintaba-mlilo ziyamangala ngenxa yezimpukane ezinamandla, izitshalo ziyamangala ngokubilisa.

Ifa lama-glaciers

Amachibi aseNyakatho Melika atholakala enyakatho yezwekazi. Lawa ngamachibi e-glacial-tectonic . Esikhathini esedlule, lapho sinikezela isikhundla sayo, i-glacier yashiya ensimini yeCanada, ingxenye engasenyakatho yezwekazi, ama-tectonic depressions akha amachweba. Phakathi kwalezi zibi yi-Great Bear, iNceku Ekhulu.

Ekuthunjweni kwamabhere

Ichibi lesine elikhulu kunawo wonke eNyakatho Melika - iBig Bear Lake - lifana nenkanyezi engavamile. Kutholakala e-Arctic Circle, ichibi eliseceleni lasenyakatho lizungezwe yi-permafrost kanye ne-tundra. Lona kuphela umugqa oqondile wogu lolwandle. Kwezinye izinhlangothi ezintathu, amabhange anqunywa ama-peninsula amadwala.

Ehlelwe ezimweni ezinzima zezulu, i-Bear Lake "ilele" ingxenye enkulu yonyaka ngaphansi kweqhwa, elihlanganisa ubuso balo ngo-Okthoba. Umzimba wamanzi ungenawo u-June kuphela, kodwa amanzi ahlala eqhwaqhoqho sonke isikhathi sehlobo.

Naphezu kwesikhashana sokuhamba, leli chibi liwumthambo wezokuthutha, ukuthatha amanzi ayo abagibeli kanye nemikhumbi yempahla. Ngemifula, ichibi lixhunywe kwezinye izindawo zamanzi zaseCentral naseNorthern Canada. Emkhathini wamanzi eMfula iMackenzie, ohlangene nechibi yi-tributary, kungenzeka ukuba ufinyelele i-Arctic Ocean futhi ufike e-Great Slave Lake, lapho umfula uvela khona.

Umnikazi werekhodi lase Continental

Esinye isikebhe saseLaurentian Upland yaseCanada sinendawo efanelekile encwadini yezimangaliso zemvelo eNyakatho Melika. I-Great Slave Lake idlulela bonke abazalwane bezwekazi laseNyakatho Melika ngokujula, okungamamitha angu-614.

Igama layo lanikezwa emgodini esikhathini esidlule, lapho ama-Indian aseSlavey ahlala khona. Igama lesizwe lihambisana nezwi lesiNgisi elithi isigqila , elisho isigqila. Ngakho igama laqala ukusetshenziswa ngendlela ephosakekile.

Njengamachibi amaningi aseNyakatho Melika, i-Slave Lake iyisiphephelo sokuhamba ngesikhathi esifushane sasehlobo, kanti izinyanga eziyisishiyagalombili ngonyaka ziboshwe igobolondo leqhwa. Iminyaka eminingi ehamba ngeqhwa eqinile ngesikhathi sasebusika ngezinyawo nangomgwaqo kwakuwukuphela kwendlela yokuxhumana phakathi kwezindawo zokuhlala ogwini, kuze kube khona umgwaqo othuthukile ogwini.

Uhlobo lwamagquma olwandle lubalabala kakhulu. Umkhumbi osenyakatho ongasenakhamuzi wechibi umelelwa amahlathi ase-tundra, ngesikhathi ukugwedla kwegolide kukhanga izinkulungwane zama-diggers egolide.

Amaphekula asempumalanga naseningizimu azungezwe amapaki kazwelonke, eceleni komgwaqo lapho umuntu angakwazi khona ukuhlangabezana nentshonalanga yehlathi esengozini yokuqothulwa.

Ukuzilibazisa

Amapaki kazwelonke, ama- regattas ohamba ngomkhumbi, amabhishi ase-sandy - ehlobo, ujabule eqhweni - ebusika. Kodwa ukuthandwa kakhulu i-Slave Lake izuze phakathi kwama-anglers. Izakhamuzi ezihlukahlukene (echibini, i-pike, i-whitefish, i-perch, i-arctic grayling) kunoma yisiphi isizini, kunoma yisiphi isimo sezulu sikhangisa abathandi bokuzingela ngokuthula.

Okuthakazelisayo ngobuhle

Eyakhelwe engxenyeni ye-volcano engapheli engxenyeni eseningizimu ye-Oregon eminyakeni engaphezu kwengu-7 000 eyedlule, iLake Creutere yiyona ekhanga kakhulu umbuso, eheha izivakashi.

Ukudlulela kwe-volcanic echibini kuboniswa ngokucacile yiziqhingi ezimbili endaweni yalo yamanzi, okuyizigaxa zomlotha oshayayo. Ngaphezu kwekhulu leminyaka edlule, ipaki kazwelonke esekelwe ensimini ehlangene nelwandle ibizwa ngokungafanele ngokuthi i-pumice desert. Echithiwe izimila ngenxa ye-porosity, indawo yendawo yepaki iye yalondoloza yonke imininingwane yesikhathi esidlule se-volcanic.

Amanzi amnyama aluhlaza okwesibhakabhaka echibi elingavamile eNyakatho Melika, ekhombisa, njengesibuko esikhulu, iziqongo zezintaba ezizungezile ebusweni bamanzi, umangaza umzuzu wokuqala. Ubunye bechibi elijulile, amatshe angqingiziwe azungeze amamitha angaba yizinkulungwane ezimbili, iziqhingi ezimbili ezivelele ziveza ubuhle obuhle.

Ichibi linomunye umbono ongavamile: endaweni yokuma, efaka phezu kwamanzi amamitha angamahhafu nengxenye, iminyaka engaphezu kwekhulu isihlahla somuthi wamamitha ayishumi sigudla eduze kwechibi ngendlela ethile yokuhamba, ngaphandle kokushintshwa kwesakhiwo ngesikhathi.