Valley - menene wannan? Ma'ana "kwarin"

An integral bangaren na mountainous ƙasa ne kwarin. Wannan shi ne na musamman nau'i na taimako, wanda shi ne wani elongated kogo. Ta akai-akai daga erosive tasiri na ruwa ya kwarara, kazalika saboda wasu peculiarities na ma'aunan kasa tsarin da ɓawon burodi.

Mene ne kalmar nan "kwarin"

Kowane irin bim, ravines, gullies lalacewa ta hanyar erratic ruwa gudana ne rudimentary siffofin kwari. A sakamakon haka, kasar gona flushing kogin ruwa tare da bakin tekun na kwaruruka bayyana, waxanda suke da juna, na iya samar da cikkaken tsarin.

Relief su m, kuma zai iya bambanta dangane da shugabanci na kogin kwarara. Mountain ko kogi kwarin - shi ne wani ɓangare na wani hadadden branched tsarin shimfidar. Ya kunshi da dama abubuwa:

1. Gangara - wani surface yankunan da iyakance kwarin bangarorin. Sun bambanta a tsawo da kuma, a Bugu da kari, na iya samun wannan ko wani daban-daban gangara (inda daya tufka lebur, da kuma wani - a steeper).
2. A kasa na (akwatin) - lebur da kuma low-kwance da wani ɓangare na kwari.
3. Outsole - wani wuri inda shiga cikin kasa da kuma gangara.
4. Hinjis - line lamba tare da surface na gangara daga cikin kewaye.
5. Terrace. Wannan kananan masu hada kai a kwance shafukan located a daban-daban Heights daga kasa daga cikin kwari.

iri da kwaruruka

Geologists raba dukan kwaruruka a cikin tudu da tudu. Suna kafa, bi da bi, da sunan wani yanki. Mountain Valley - wani nau'i na taimako, halin da babba zurfin kuma m m gangara.

A lebur ne fadi tare da kasa da pronounced zurfin da tare da m m gangara, da yawa na baya nisa. Babban kashi ne mai fadi da kasa incision. Bakin kwarin shi ne sau da yawa wani bay inda kogin gudana.

Ya danganta da wurin da suke a kwarin, da kuma fassara ma'anar wannan kalma a cikin daban-daban kafofin. A wasu "Valley" - shi ne wani elongated ciki tsakanin duwatsu, ko duwatsu, kuma a cikin wasu - da sarari kasa da kewaye ƙasa, yawanci located tare da kogin.

kogin kwarin

Kafa a sakamakon daukan hotuna zuwa marẽmari. Kwarin Kogin wakiltar kwaruruka elongated ƙasar surface wadda ya tsawaita daga tushen zuwa bakinsa. A ta bayyanar samu geographers iya sanin ko yana da shekaru da kuma mataki na ci gaba, kazalika da ma'aunan kasa tsarin da wuri, crustal ƙungiyoyi a cikin kogin kwari, koyi game da sojojin na weathering da yafi.

River kwarin - a branched zama ruwan dare tsarin, wanda ya saba sharply tare da kewaye wuri mai faɗi. Canza shugabanci na kogin kwarara sau da yawa take kaiwa zuwa volatility da sake fasalin kudin na kwaruruka, wanda aka lokaci-lokaci rejuvenated. Su hydrological siffofin ne musamman a tsakanin sauran iri shimfidar. Wannan ya shafi yanayi da ambaliyar ruwa da kuma ruwan sama-jawo ambaliyar ruwa. Spills faruwa synchronously a ko'ina cikin profile na cikin kwari.

Gangaren kwaruruka da kogin yawanci rufe da gandun daji, da kuma floodplain amfani ga grasslands, noma amfanin gona, a cikin safest yankunan yashewa a cikin wadannan yankunan da ake located da ƙauyuka.

A manyan kogin floodplain iya zauna ƙasa a fadin daga 15 zuwa 30 km. Shi ne low, flooded kowace shekara, kuma m, wadda ke karkashin ruwa kawai a lokacin nauyi ambaliyar ruwa.

Terrace wanda yana da kogin kwari - shi ne wani nau'i ne na nicks cewa zai iya gaya mai yawa game da tarihin na kogin. A da akai overlie da bedrock, da kuma surface ne mai rufi da kogin sediments. A wadannan baranda za ka iya samun dama tsohon sediments na Marshes da tabkuna da guntattakin wanzu na dogon lokaci shuke-shuke da dabbobi.

Gorges da kwaruruka - shi ke wani dutse wuri mai faɗi. Suna halin m gangara kuma tashoshi na sashen kogin. River iko rafi cuts ta cikin dutse kafa gorges da canyons kusan m gangara inda babu baranda.

Profile of matasa kwaruruka yana da sassan inda kogi ne hanzari sunã gaggãwa sashen kogin. A ƙarshe, a karkashin mataki na kwarara sarari masu hada kai. Smooth profile, wanda ya zama wani kwari - shi ne wata ãyã ta balaga.

Siffofin kogin kwaruruka

Da samuwar kwari rinjayar da yawa dalilai. Daga gare su, da tectonic matakai cewa sanin da shugabanci na kankara, slipping ƙasa yashewa da su hazo. Duk wannan na taimaka wa halittar siffofin daban-daban na kogin kwari.

Gorge ko gorges aka kafa ta hanyar zurfin yashewa da kuma rarraba, yafi a cikin dutsen yankunan. Su m gangara hada da fā. A kasa na da cikakken nisa na yana daukan cikin kogin.

Canyons ne kunkuntar kwaruruka wadda aka kafa a cikin wuraren da ajiye yadudduka na daban-daban ƙarfi. An dauke zama mafi zurfi kanyon a Colorado River (a cikin US) zuwa zurfin 2 km.

Ruwan Tsufana filayen daga cikin kogin tashar bautarka kawai karamin sashi. Su ne halayyar ga filayen. A dukan kwarin da baranda iya samun wani nisa daga sama zuwa 100 kilomita ko fiye. A cikin wadannan yankunan don shuka amfanin gona, da kuma kuje shanu. Ba abin mamaki da yawa encyclopedic kafofin, kalmar "kwarin" da aka fassara a matsayin "haihuwa", "Rayuwa", "nurturing".