Video: Lub phaj twg yog Mid Atlantic Ridge ntawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
North American thiab Eurasian Daim phiaj tab tom txav deb ntawm ib leeg raws txoj kab ntawm tus Mid Atlantic Ridge . Cov Ridge txuas mus rau sab qab teb Atlantic Dej hiav txwv ntawm South American thiab African Daim phiaj.
Yog li ntawd, puas yog Mid Atlantic Ridge lub phaj tectonic?
Cov Nruab nrab - Atlantic Ridge (MAR) yog lub npe hu ua a nruab nrab - dej hiav txwv qaum , ib tug underwater roob system tsim los ntawm phaj tectonics . Lub rift marks tus ciam teb ntawm cov nyob ib sab tectonic daim hlau , thiab yog qhov twg magma los ntawm lub mantle mus txog lub hiav txwv.
Ib yam li ntawd, yam kev ua txhaum dab tsi uas koj xav kom pom nyob hauv nruab nrab Atlantic Ridge? " Hloov pauv Kev ua txhaum" hloov zuj zus vim tias Mid-Atlantic Ridge tau xav tias muaj keeb kwm tawg jaggedly raws ntug dej hiav txwv es tsis yog ua raws txoj kev ncaj. Yog li ntawd, qee ntu ntawm cov kab sib kis tau raug cuam tshuam los ntawm cov seem uas nyob ib sab.
Tsuas yog li ntawd, nyob qhov twg Mid Atlantic Ridge pom?
Cov Nruab nrab - Atlantic Ridge (MAR) yog qhov feem ntau underwater roob toj roob hauv pes Atlantic Dej hiav txwv uas khiav los ntawm 87 ° N - txog 333 km sab qab teb ntawm North Pole- mus rau subantarctic Bourvet kob ntawm 54 ° S.
Lub Mid Atlantic Ridge muaj pes tsawg xyoo?
Fission-track dating ntawm basaltic iav los ntawm Mid-Atlantic Ridge muab cov txiaj ntsig uas zoo ib yam nrog cov lus pom zoo ntawm dej hiav txwv-pem teb. Solidification hnub nyoog los ntawm ~ 10,000 xyoo rau ~ 300,000 xyoo raug ntsuas.
Pom zoo:
Puas yog chromosomes kab ntawm lub phaj metaphase ntawm lub cell hauv mitosis?
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Mid Atlantic Ridge siab npaum li cas?
2, 351 m Tsis tas li ntawd, qhov tob npaum li cas ntawm Mid Atlantic Ridge? Nyob ze ntawm lub equator, lub Nruab nrab - Atlantic Ridge tau muab faib ua North Atlantic Ridge thiab sab qab teb Atlantic Ridge los ntawm Romanche Trench, nqaim submarine trench nrog qhov siab tshaj plaws qhov tob ntawm 7, 758 m (25, 453 ft), ib qho ntawm qhov tob tshaj plaws ntawm qhov chaw Atlantic Dej hiav txwv.