Video: Yuav ua li cas paleomagnetism paub tseeb tias phaj tectonics?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Paleomagnetism . Paleomagnetism yog kev kawm ntawm lub ntiaj teb yav dhau los magnetic teb. Yog li ntawd, paleomagnetism tuaj yeem xav tau tiag tiag raws li kev kawm ntawm cov hlau nplaum qub. Qee qhov pov thawj muaj zog tshaj plaws hauv kev txhawb nqa ntawm txoj kev xav ntawm phaj tectonics los ntawm kev kawm cov magnetic teb nyob ib ncig ntawm dej hiav txwv ridges.
Ib yam li ntawd, tej zaum koj yuav nug, paleomagnetism ua pov thawj rau sab av loj li cas?
Paleomagnetism yog txoj kev tshawb fawb ntawm cov hlau nplaum thaum ub ntawm ob lub pob zeb thiab lub ntiaj teb tag nrho. Paleomagnetism tau muab cov ntaub ntawv pov thawj muaj zog heev rau kev mus ncig teb chaws thiab continental drift . Qhov no magnetism yog tshwm sim los ntawm kev sib haum xeeb ntawm magnetic teb ntawm cov hlau nplaum nyob rau hauv ib lub pob zeb.
Vim li cas paleomagnetism tseem ceeb? Cov ntaub ntawv ntawm lub zog thiab kev taw qhia ntawm lub ntiaj teb magnetic teb ( paleomagnetism , los yog fossil magnetism) yog ib qho tseem ceeb qhov chaw ntawm peb txoj kev paub txog lub ntiaj teb evolution thoob plaws tag nrho cov keeb kwm geological. Cov ntaub ntawv no tau khaws cia los ntawm ntau pob zeb los ntawm lub sijhawm lawv tsim.
Tsis tas li ntawd, paleomagnetism txiav txim siab li cas?
Paleomagnetism yog txoj kev kawm ntawm cov hlau nplaum seem hauv pob zeb. Paleomagnetic Kev ntsuas yog ntsuas cov pob zeb sib nqus. Los ntawm kev txiav txim qhov sib nqus sib nqus thiab kev taw qhia ntawm ntau lub pob zeb tawm hauv thaj chaw ntau tuaj yeem kawm txog keeb kwm kev tsim, av txav, thiab cov qauv geological ntawm cheeb tsam.
paleomagnetism pab txhawb lub tswv yim tias lithosphere txav li cas?
- Ib zaug txhua 200, 000 xyoo, lub ntiaj teb magnetic teb rov qab polarity. - Raws li cov phiaj xwm tsim tau ntxiv cov pob zeb tshiab rau saum npoo, qhov no tuaj yeem thiab cov hlau nplaum sib nqus nyob hauv cov pob zeb ua ke nws tus kheej nrog cov kev taw qhia ntawm lub ntiaj teb magnetic teb.
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