Lub pas dej hiav txwv twg yog kis tau sai tshaj qhov qeeb tshaj?
Lub pas dej hiav txwv twg yog kis tau sai tshaj qhov qeeb tshaj?

Video: Lub pas dej hiav txwv twg yog kis tau sai tshaj qhov qeeb tshaj?

Video: Lub pas dej hiav txwv twg yog kis tau sai tshaj qhov qeeb tshaj?
Video: Wb zaj dab neeg sib hlub tsis tau (Full version) - ZAJ DUB nkauj tawm tshiab 2024, Kaum ib hlis
Anonim

Nyob rau hauv xaus, lub North Atlantic dej hiav txwv kis tau qeeb tshaj plaws thiab Dej hiav txwv Pacific Lub phiab kis ceev tshaj plaws.

Ua li no, cov pas dej hiav txwv puas kis tau zoo ib yam thoob plaws lub phiab?

Raws li hnub tim los ntawm tag nrho 3 dej hiav txwv phiab , lawv li kis uniformly tshaj tag nrho lub phiab vim Paleomagnetism. Paleomagnetism yog kev kawm txog kev hloov pauv hauv lub ntiaj teb magnetic teb, uas qhia los ntawm cov qauv ntawm cov hlau nplaum hauv cov pob zeb uas tsim. dhau sij hawm. Lub pob zeb paleomagnetism ua tsis hloov.

Tsis tas li ntawd, lub pas dej North Atlantic muaj pes tsawg xyoo? Cov hnub nyoog ntawm North Atlantic phiab (los ntawm nqe lus nug 2 hauv 7.6C) yog 269.23 Ma thiab cov hnub nyoog ntawm South Lub pas dej Atlantic 133.33 Nws.

Ib sab saum toj no, lub pas dej hiav txwv twg tau nthuav dav tshaj plaws nyob rau hauv 2 lab xyoo dhau los?

Siv cov nyob deb nplai hauv Daim duab 2 , lub (Pacific, South Atlantic, North Atlantic) tau kis qhov deb tshaj plaws nyob rau hauv 2 lab xyoo dhau los.

Lub hiav txwv pem teb txav ceev npaum li cas?

Nws kis tau li 6-16 centimeters (3-6 ntiv tes) txhua xyoo. Tsis muaj dej hiav txwv trench ntawm East Pacific Rise, vim hais tias cov seafloor kis tau sai heev rau ib tug tsim! Qhov tshiab tshaj plaws, thinnest crust nyob rau hauv lub ntiaj teb yog nyob ze ntawm qhov chaw ntawm nruab nrab- dej hiav txwv ridge-qhov tseeb qhov chaw ntawm seafloor kis.

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