Video: Dab tsi yog continental rift?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A Continental rift yog txoj siv tawv los yog cheeb tsam ntawm lub teb chaws Europe lithosphere qhov twg extensional deformation ( kev rifting ) yog tshwm sim. Cov cheeb tsam no muaj qhov cuam tshuam tseem ceeb thiab geological nta, thiab yog tias cov kev rifting muaj kev vam meej, ua rau kev tsim cov dej hiav txwv tshiab.
Yog li ntawd, dab tsi yog piv txwv ntawm continental rift?
Qhov loj tshaj ntawm cov continental kev sib cais Cov hav yog cov ntawm East African Rift Qhov system, uas txuas mus rau sab qaum teb mus rau Hiav Txwv Liab thiab sab hnub tuaj mus rau hauv Dej Hiav Txwv Indian. Lwm qhov tseem ceeb piv txwv suav nrog Baikal Rift Valley (Russia) thiab Rhine Rift Valley (Lub teb chaws Yelemees).
Kuj Paub, qhov twg yog continental rift? Major kev rifts tshwm sim nyob rau hauv nruab nrab axis ntawm feem ntau mid-ocean ridges, qhov twg tshiab dej hiav txwv crust thiab lithosphere yog tsim raws ib tug sib txawv ciam teb ntawm ob daim hlau tectonic. Ua tsis tiav kev rifts yog qhov tshwm sim ntawm continental rifting uas ua tsis tau tejyam txuas ntxiv mus rau qhov kev sib cais.
Hais txog qhov no, dab tsi ua rau kev sib cais ntawm sab av loj?
Rifting tuaj yeem yog ua rau thaum cov khoom kub los ntawm lub mantle plume mus txog lub hauv paus ntawm a teb chaws Europe phaj thiab ua rau lub overlying lithosphere kom sov. Ntxiv rau qhov no lub zog ntawm lub plume tawm tsam lub hauv paus ntawm lub phaj ua rau muaj zog ntxiv, uas tuaj yeem ua tau ua rau rifting.
Dab tsi yog qhov continental rift valley?
A rift hav yog ib cheeb tsam lowland uas tsim qhov twg lub ntiaj teb daim hlau tectonic txav sib nrug, los yog kev sib cais . Rift hav tau pom ob qho tib si hauv av thiab hauv qab dej hiav txwv, qhov chaw uas lawv tsim los ntawm cov txheej txheem ntawm kev sib kis hauv hiav txwv.
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