Ea liphallelo e le liminerale Amerika Leboea

K'honthinente ea Amerika Leboea le koahela sebakeng se seholo. Ka boholo ke boraro lefatšeng. Ka lebaka la ho sebopeho sa naha le lirafshoa tsa Amerika Leboea ba tšoauoa ka ho fapafapana haholo. Sena se tla tšohloa more ...

boemo ba libaka

k'honthinente e teng ka hemispheres ka leboea le e ka bophirimela ea lefatše. Ho e hlatsoa ke Pacific le Atlantic le Arctic maoatleng, e ne e le mefuta e fapaneng ya likou le maoatle. From Amerika Boroa, e le k'honthinente arola Mochophoro oa Panama, ka bophirimela ho Eurasia, ho e arotsoe ke Bering Strait.

Karolo e kontinenteng ya North America e sebakeng se limithara tse lisekoere milione 20,36. km SE. Har'a lihlekehleke tsa karolo naha ea Greenland, Caribbean le Canada Arctic sehlopha sa lihlekehleke, 'me ba bang. From bolelele leboea-ka boroa ho k'honthinente ea km 7326, ho tloha bophirimela ho ea bochabela - km 4700.

tšimong ea naha e hoo e ka bang ka ka libaka tsohle hahlaula. United States le Canada, hammoho le Bahamas, Bermuda le Greenland etsa le North American sebakeng. Karolong e ka boroa, e leng e sebakeng chesang e mongobo, ke karolo ea sebaka se Central American.

tlisang liphallelo

Ea liphallelo e le liminerale Amerika Leboea ba bolaea fapane. Holim 'a k'honthinente ena e emetsweng farologanang - ho na le lithaba le likhohlo, lithota le maralla. Boholo ba le sebaka seo ho lula lithoteng ka mahlakoreng a mabeli ea moeli oa bona ea lithaba. Bophahamo ba lithoteng tsa ka fapana pakeng limithara tse makholo a seng makae, e leng etsa hore ho le wavy haholo sebaka.

Karolong e ka leboea ea Laurentian Upland e sehelane moeli le ka ketane boroa le matša a maholo. E le hantle thaba ea leqhoa fa smoothed bōpehileng joaloka majoe le maralla, sebopeho sa likoting. Ho ea ka boroa ke maralleng Central Valley, le letona ka mor'a bona - Mississippi phuleng ena.

Karolong e ka bophirimela ea Great Lithoteng tse - le mosiko oa Cordillera. Ba fihla ho fihlela ho limithara tse 1.500 bophahamo. Cordillera ke libaka lesaka fetisisa, bophahamo lebetsoeng le - e ka holimo ea Thaba ea McKinley ka limithara tse 6193. Ba etsa ho fihlela karolong e ka bochabela ea Rocky Mountains (4,200 limithara) le phorosela Mountains.

Ka bochabela ba ile ba lokisetsa Appalachian emeloang ke maralla a mahareng phahameng le tse fapaneng ka thoko ba ho fihlela ho 2000 limithara tse. E ka boroa ea k'honthinente e ke Mexico le Atlantic mabopong thota, ha feteng limithara tse makholo a mabeli. Off le lebōpo la leoatle, ba ile ba hlahisa libareng, terraces, matangoana a, spits.

sebopeho geotectonic

The North American k'honthinente ke motheo sethaleng, tseo boholo ba tsona e nka e Canada Shield, thehoa lilemong tse qalang tsa Precambrian. metshetshe lona ba lea ka la boleloa, ho na le mobung oa pele, nikele, khauta, cobalt tšepe le liminerale tse ling Amerika Leboea.

Ho tloha bochabela ho ea Canada Shield Appalachian lepelela. Ka tsena lithabeng tseo a phuthilweng-ea le literata e simolohe le thulaganyo ea timetso. libakeng tse thothofatsang fetoha phula, 'me lefika manganga ho feta setseng ka mokgwa wa elevations.

Karolong e ka bophirimela ea k'honthinente e Cordilleran sebakeng karolelano ea phutha, thehoa ke thulana ea lipoleiti tectonic. Tshebetso ena o tsoela pele kajeno. Sebopeho Cordilleras hape susumetsoa thaba ea leqhoa. Ka hona, ka sebakeng sena ba sebakeng liminerale bobeli sedimentary le igneous Amerika Leboea.

Great Lithoteng e teng ka moeli oa sethaleng le Cordillera. Di thehoa ke sediments leoatleng le kontinenteng. Simolohileng tšoanang le Central Valley. Ka ka boroa-ka bochabela bona sefahleho karst majoe, ho bōpa e kolonnenweg ea tebileng - Mammoth Cave. Sedimentary mafika thehoa le mabalane Mexico.

Amerika Leboea: liminerale (bokhutšoanyane)

Sebopeho Geological ke ea bohlokoa haholo bakeng sa sebopeho sa mehlodi ya itseng matsoai. Thanks ho sebopeho lona khethehileng, le liminerale Amerika Leboea ke hoo e ka bang ho pholletsa le k'honthinente ena.

Ka Canada thebe sebakeng tse mobung bohlokoa tsa uraniamo tšepe le tšepe, molybdenum, nikele, koporo. Mabalane mabopong, hammoho le ka Cordilleras le Alaska ke mehloli ea tuki magala. Mona epilwe liminerale tse kang North American oli le khase ea tlhaho.

Libakeng tse bohareng le depressions ke Appalachian mobung oa mashala. Ka Cordilleras tse fapa-fapaneng sedimentary le magmatic liminerale, tse kang khauta, tšepe ea tšepe batho bao e seng ferrous, mercury. Large mobung ea phosphate leng teng ka hloahloeng bitsoang Florida.

Liminerale North America: tafole

Bakeng sa maikutlo a molemo re etsa qeto ea ho beha hammoho boitsebiso bohle le fanoa ka tafoleng, e leng e fana mona ka tlase.

bofello

The k'honthinente ea Amerika Leboea e teng ka hemispheres ka leboea le e ka bophirimela ea lefatšeng. sebaka lona libaka, maemo a tlhaho le sebopeho Geological susumetsoa sebopeho sa mehlodi ya matsoai.

Liminerale tse kgolo Amerika Leboea - ho bao e seng ferrous tšepe tšepe, nematallicheskie manya le tuki magala. Har'a bona, khase ea tlhaho, oli, mashala, phosphates, uraniamo, etella sechaba pele, zinki nikele, manya silevera, khauta, polatinamo le ba bang.

Ka lebaka la palo e khōlō le ho fapafapana matlotlo, re e 'meli e meholo ka naha e ka fana ka bona ka bobona le ke itšetlehile ka linaha tse ling.