Video: Puas yog cov teb chaws zoo ib yam li daim phiaj qhia koj cov lus teb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Continental crust tsis npog tag nrho cov saum npoo ntawm lub ntiaj teb - nruab nrab ntawm nws yog tob dej hiav txwv crust. Tectonic daim hlau (qee zaus erroneously hu ua 'continental daim hlau 'yog ib feem ntawm lub Ntiaj Teb' Lawv yog ob yam sib txawv heev. A teb chaws yog 'nruam av loj'.
Ib yam li ntawd, cov teb chaws puas zoo ib yam li daim hlau?
Cov teb chaws yog embedded nyob rau hauv lub daim hlau . Ntau teb chaws tshwm sim nyob rau hauv nruab nrab ntawm daim hlau , tsis nyob ntawm lawv ciam teb los yog ntug. Daim phiaj kuj underlie lub ntiaj teb dej hiav txwv. Daim phiaj yog tsim los ntawm lub ntiaj teb crust thiab sab sauv mantle, uas yog collectively hu ua lithosphere.
Tsis tas li ntawd, daim av teb chaws yog dab tsi? Tectonic daim hlau yog cov khoom ntawm lub ntiaj teb crust thiab topmost mantle, ua ke hu ua lithosphere. Cov muaj pes tsawg leeg ntawm ob hom crust txawv txawv, nrog mafic basaltic pob zeb dominating dej hiav txwv crust, thaum continental crust muaj feem ntau ntawm qis-density felsic granite pob zeb.
Yog li ntawd, cov phiaj xwm tectonic thiab cov teb chaws muaj feem cuam tshuam li cas?
Txhua teb chaws muaj ib los yog ntau tshaj tectonic phaj hauv qab lawv. Yog li ntawd, lawv yog ntsig txog vim cov no daim hlau hauv qab teb chaws tuaj yeem hloov cov av ntawm thaj av ntawd.
Dab tsi yog qhov zoo sib xws thiab qhov sib txawv ntawm phaj tectonics thiab continental drift?
Cov qhov sib txawv ntawm continental drift thiab phaj tectonics yog qhov theory ntawm continental drift hais tias lub ntiaj teb tau tsim los ntawm ib leeg teb chaws . Txoj kev xav ntawm phaj - tectonics , ntawm qhov tod tes, hais tias lub ntiaj teb saum npoo tau tawg ua cov lej hloov daim hlau los yog slabs.
Pom zoo:
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