Lub East African Rift cuam tshuam li cas rau phaj tectonics?
Lub East African Rift cuam tshuam li cas rau phaj tectonics?

Video: Lub East African Rift cuam tshuam li cas rau phaj tectonics?

Video: Lub East African Rift cuam tshuam li cas rau phaj tectonics?
Video: CS50 2015 - Week 9, continued 2024, Kaum ib hlis
Anonim

Cov East African Rift Valley (EAR) yog ib qho kev sib txawv phaj ciam teb hauv Sab hnub tuaj Teb chaws Africa. Nubian thiab Somalian daim hlau kuj cais tawm ntawm cov neeg Arab phaj nyob rau sab qaum teb, yog li tsim 'Y' zoo li tus kev rifting qhov system. Cov no daim hlau Kev sib tshuam hauv thaj av Afar ntawm Ethiopia ntawm qhov hu ua 'triple junction'.

Yog li ntawd, hom phaj ciam teb yog East African Rift?

sib txawv

Ib yam li ntawd, dab tsi ua rau East African Rift? Cov East African Rift yog ib ntawm cov zoo heev tectonic nta ntawm Teb chaws Africa , ua rau los ntawm kev tawg ntawm lub ntiaj teb crust. Qhov no astronaut yees duab ntawm lub Sab hnub tuaj Ceg ntawm lub Rift (ze Kenya tus ciam teb yav qab teb) qhia txog cov qauv geological classical txuam nrog tectonic kev sib cais hav.

Hais txog qhov no, phaj tectonics tsim dab tsi hauv East Africa ntxiv rau Great Rift Valley?

Cov East African Rift Qhov system. Cov East African Rift System (EARS) yog ib qho kev xav ntawm geology ntawm lub ntiaj teb, qhov chaw uas lub ntiaj teb tectonic cov rog tam sim no sim ua tsim tshiab daim hlau los ntawm kev sib cais cov qub. Ob tug no daim hlau lawv tsiv mus lawm daim ntawv ib leeg thiab tseem nyob deb ntawm Arabian phaj mus rau sab qaum teb.

Yuav ua li cas faults txuas nrog kev tsim ntawm ib tug rift hav?

A rift hav yog ib tug linear zoo li tus lowland ntawm ob peb highlands los yog roob ranges tsim los ntawm qhov kev txiav txim ntawm ib tug geology kev sib cais los yog txhaum . A rift hav yog tsim nyob rau hauv ib tug sib txawv phaj ciam teb, ib tug crustal extension los yog sib nrug ntawm qhov chaw, uas yog tom qab ntxiv ntxaum los ntawm lub zog ntawm yaig.

Pom zoo: