Mene ne ciki? iri daruna

Duniya taimako dada bambancin. A kan bãyan tẽkun alternating tare da zurfin canyons mafi kololuwa, m iri-iri ake hada tare da m da lebur filayen. Wannan labarin ya mayar da hankali a kan daya daga cikin siffofin da wani terrestrial taimako. Mene ne ciki? Kamar yadda shi ya dubi? Abin da iri daruna zama?

Mene ne ciki?

A labarin kasa, da kalmar da ake amfani da quite sau da yawa. A musamman, a geomorphology - da kimiyya da karatu da ƙasa na duniya tamu. Saboda haka, abin da yake ciki?

Hollows a fannin binciken kasa da labarin kasa kira da babbar korau landforms a cikin ƙasa, ko teku bene. Mafi sau da yawa, suna da wani zagaye siffar.

A girman da tasa na iya zama sosai daban-daban. Alal misali, nesa Bamuda a Gabashin Afrika ta rufe wata babbar yankin, wanda nawa don dubban murabba'in kilomita. Sauran daruna ne yafi fadin a size (as, misali, Nadbuzhanskaya Basin a Yammacin Ukraine).

A kan asalin wadannan siffofin sauƙi ne tectonic, yashewa, glacial, karst, eolian kuma ko da volcanic. Bisa ga ruwa gwamnatin iya zama sharar gida da kuma undrained.

Basin an sami biyu a cikin ƙasa da kan seabed. Mene ne ciki a oceanography? Wannan ne mai babbar rage daga cikin Oceanic kasa, kewaye da nahiyar gangara, submarine ridges ko ramparts. A talakawan zurfin karkashin ruwa depressions ayan ƙetare alamar 3500 mita.

A tasa na Lake Baikal: asalin da kuma ban sha'awa facts

Dabam geomorphologists la'akari da lake daruna. Wannan rage a cikin farfajiya, ya cika da ruwa. A cikin Rasha ta most da kuma mafi ban sha'awa shi ne a lake tasa na Lake Baikal. Ta yaya kuma idan ba shi ya taso?

Nazarin mafi zurfi lake na duniya suna tsanani tsunduma a cikin XVIII karni. Bajamushe masanin kimiyya Peter Pallas farko zuwa sa a gaba a cikin jarrabawa game da asalin na ciki. A cewar shi, Baikal aka kafa a sakamakon duniya bala'i. Bayan Pallas su zaton gina da kuma wasu masana kimiyya. Kuma kusa da gaskiya kusata Soviet geographer VA Hoops.

A gaskiya ma, cikin Baikal Basin ne wani ɓangare na wata babbar sabani zone, a karkashin abin da ɓawon burodi ne kullum da kuma karfi mai tsanani da abnormally. Saboda haka, da taro na dutse suna maras kyau, su gudana da kuma kafa sarkar na ridges, wanda yanzu kewaye a kan dukkan bangarorin da lake.

Ban sha'awa Gaskiyar: A zamani masana kimiyya sun gano cewa Baikal gaci motsa baya game 2 cm a kowace shekara. Lokaci-lokaci a cikin wannan yankin da ake gyarawa da kuma girgizar kasa. Duk wannan yana nufin cewa samuwar tasa na Lake Baikal ci gaba da wannan rana.

Yanzu da ka san abin da ciki shi ne da kuma yadda shi ya dubi. Wannan mummunan nau'i na nazarin sasannin taimako, wanda na iya faruwa duka biyu a kan ƙasa, kuma a karkashin tekuna da ruwaye.