Valley - ndi chiyani ichi? Kutanthauza "chigwa"

Mbali yofunika ya m'mapiri ndi chigwa. Izi mwapadera mpumulo, chomwe ndi elongated patsekeke. Iye kawirikawiri ku amadza erosive wa madzi, komanso chifukwa ena peculiarities wa kapangidwe miyala ya matanthwe a.

Kodi mawu akuti "chigwa"

Mitundu yonse ya matabwa, zigwembe, gullies chifukwa cha utuluke zosathandiza madzi ndi achikalekale mitundu zigwa. Chifukwa, nthaka ankatenthetsa madzi a m'mphepete mwa nyanja lowland uka, amene inakula, akhoza kupanga dongosolo lonse.

Relief iwo kusokonekera ndipo zosiyanasiyana malinga ndi malangizo a otaya mtsinje. Mountain kapena mtsinje chigwa - ali mbali ya zovuta dongosolo mitunda nthambi. Amakhala ndi zinthu zosiyanasiyana:

1. Otsetsereka - ndi malo pamwamba kuti kuchepetsa chigwa mbali. Iwo zosiyanasiyana kukwera ndi, kuwonjezera, akhoza kukhala ndi kapena otsetsereka osiyana (kumene timafupa mosabisa, ndi wina - ndi steeper).
2. Pansi pa (bokosi) - lathyathyathya ndi otsika kunama mbali ya m'chigwa.
3. Chikopa cha m'mbali - malo kumene akulowa pansi ndi otsetsereka.
4. Hinge - mzere pokhudzana ndi padziko otsetsereka a m'madera ozungulira.
5. Bwalo. Izi ang'onoang'ono limagwirizana malo yopingasa ili pa misanje osiyana kuchokera pansi pa chigwacho.

mitundu zigwa

Akatswiriwa amagawa zigwa zonse mu phiri m'chigwa. Iwo anapanga, motero, dzina la malo ena. Mountain Valley - ndi mtundu wa mpumulo, yodziwika ndi akuya ndithu ndi m'goli otsetsereka.

Lathyathyathya ndi onse ndi zochepa kutchulidwa mozama ndi wofatsa yosalala otsetsereka lomwe otsika m'lifupi. The mbali yaikulu ndi lonse pansi ang'ambe thupilo. M'kamwa mwa chigwa zambiri Bay limene mtsinje umayenda.

Malinga ndi malo m'chigwa, anamasulira tanthauzo la mawu awa zinthu zosiyanasiyana. Ena "Valley" - ndi maganizo elongated pakati pa mapiri kapena mapiri, ndi zina - danga pansipa mtunda ozungulira, kawirikawiri ili m'mphepete mwa mtsinjewo.

mtsinje chigwa

Anapanga chifukwa cha kukhudzana kwa loyenda madzi. Mtsinje Valley akuimira lowland elongated dziko pamwamba chochokera gwero kuti pakamwa. Mu maonekedwe ake anakumana geographers mosavuta kudziwa msinkhu ndi siteji ya chitukuko komanso dongosolo miyala ya m'deralo, kayendedwe crustal mu mtsinje beseni, kuphunzira za mphamvu za weathering ndi zina zambiri.

Mtsinje chigwa - ndi nthambi akutali dongosolo, lomwe limasiyanitsa zikuchepa ndi malo ozungulira. Kusintha malangizo a otaya mtsinje zambiri kumayambitsa osakhalitsa ndi kukonzanso wa zigwa, amene nthawi mphamvu. zizindikiro zawo hydrological ndi wapadera pakati pa mitundu ina ya malo. Zimenezi zikukhudza madzi osefukira nyengo ndi mvula chifukwa chovutika madzi osefukira. Mumapezeka zimachitika synchronously mu mbiri ya m'chigwa.

The otsetsereka a m'zigwa mtsinje kawirikawiri yokutidwa ndi nkhalango, ndipo floodplain ntchito udzu, mbewu alimi m'madera otetezeka osefukira m'madera izi zili ndi midzi yake.

Mu lalikulu mtsinje floodplain akhoza zatenga gawo m'lifupi ku makilomita 15 mpaka 30. Ndi wotsika, anasefukira chaka, ndi wa Kumwambamwamba, amene akupita pansi pa madzi okha pa madzi osefukira lolemera.

Bwalo lomwe lili ndi mtsinje chigwa - ndi mtundu wa nicks kuti akhoza kukuuzani zambiri zokhudza mbiri ya mtsinje. Pa maziko awo overlie ndi maziko olimba, ndi pamwamba TACHIMATA ndi m'dambo mtsinje. Amalimidwa izi mungapeze zosiyanasiyana m'dambo wakale wa m'madambo ndi nyanja, zotsala analipo kwa zomera nthawi ndi nyama yaitali.

M'zigwa ndi zigwa - kuti ndi phiri malo. Iwo yodziwika ndi otsetsereka ndi njira ya mathithi. Mtsinje wamphamvu mtsinje mabala kudzera thanthwe kupanga m'zigwa ndi maphompho pafupifupi otsetsereka kumene masitepe.

Mbiri za m'zigwa wachinyamata zigawo kumene mtsinje mofulumira mkokomo mathithi. Patapita nthawi, pansi zochita za danga otaya limagwirizana. Yosalala mbiri, amene akukhala chigwa - ndi chizindikiro cha kukhwima ake.

Mitundu ya zigwa mtsinje

Mapangidwe zigwa zimakhudza zinthu zambiri. Pakati pawo, njira tectonic akanadziŵa malangizo a miyala, amalowetsa kukokoloka kwa nthaka ndi mpweya awo. Zonsezi zimathandiza kuti chilengedwe cha zosiyanasiyana zigwa za mitsinje.

Gorge kapena m'zigwa anapanga kudzera kukokoloka kwambiri ndipo anagawira makamaka m'madera phiri. otsetsereka awo phompho wapangidwa ndi thanthwe lolimba. Pansi pa m'lifupi chonse zimatengera nyanza.

Maphompho ndi zigwa yopapatiza amene anapanga m'madera kumene waikamo zigawo za mphamvu zosiyana. Amaona kuti kukhala chigwa kuya mu Colorado Mtsinje (mu US) kuti akuya 2 Km.

Chigumula zigwa za mtsinje njira ali mbali yaing'ono chabe. Iwo khalidwe kwa zigwa. Chigwa lonse ndi masitepe mwina ndi m'lifupi makilomita mpaka 100 kapena kuposa. Kumalo amenewa kulima ndi msipu ng'ombe. M'pake kuti anthu ambiri magwero Buku, mawu akuti "chigwa" kutanthauziridwa monga "kubereka", "Moyo," "losamala".