Mid Atlantic Ridge cuam tshuam li cas rau Iceland?
Mid Atlantic Ridge cuam tshuam li cas rau Iceland?

Video: Mid Atlantic Ridge cuam tshuam li cas rau Iceland?

Video: Mid Atlantic Ridge cuam tshuam li cas rau Iceland?
Video: Massive 7.0 MEGAQUAKE shake SOUTH MID ATLANTIC RIDGE - SE Brazil 6.17.15 2024, Kaum ib hlis
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Tsis tsuas yog lub nruab nrab - dej hiav txwv qaum hloov geography ntawm Iceland , nws kuj yog lub luag haujlwm rau kev ua haujlwm volcanic uas tsim cov kob. Raws li ob daim hlau tectonic hloov, fissures ib ntus tsim nyob rau hauv lub crust uas tso cai rau molten pob zeb los ntawm underground mus rau saum npoo li lava, tsim. Iceland cov ntau lub roob hluav taws.

Ntawm no, puas yog Mid Atlantic Ridge khiav hla Iceland?

Nruab nrab - Atlantic Ridge hauv Iceland . Txiav dhau qhov chaw ntawm Iceland yog cov Nruab nrab - Atlantic Ridge . Qhov no yog ciam teb ntawm North American thiab Eurasian tectonic daim hlau. Tsis tsuas yog lub nruab nrab - dej hiav txwv qaum hloov geography ntawm Iceland , tab sis nws kuj yog lub luag haujlwm rau kev ua volcanic uas tsim cov kob.

Ib tug kuj yuav nug, vim li cas Mid Atlantic Ridge tseem ceeb? Nruab nrab - dej hiav txwv ridges yog geologically tseem ceeb vim hais tias lawv tshwm sim raws li hom phaj ciam teb uas tshiab dej hiav txwv pem teb yog tsim raws li cov phiaj sib nrug. Yog li cov nruab nrab - dej hiav txwv qaum tseem hu ua "spreading center" lossis "divergent phaj ciam teb." Cov phiajcim sib nrug ntawm tus nqi ntawm 1 cm mus rau 20 cm ib xyoos twg.

Kuj nug, ua li cas lub mid Atlantic ridge tsim?

Qhov no submarine Nruab nrab - Atlantic Ridge tshuav nws qhov tsim los rau kev txav ntawm cov phiaj xwm sab av loj ntawm ob sab ntawm dej hiav txwv. Raws li cov phiajcim no maj mam sib cais, lawv tawm hauv qhov khoob hauv lub ntiaj teb. Qhov no tso cai rau cov pob zeb molten los ntawm hauv qab lub ntiaj teb crust mus txog saum npoo, tsim ib feem tshiab ntawm dej hiav txwv pem teb.

Yuav ua li cas tshwm sim rau Dej Hiav Txwv Atlantic los ntawm Mid Atlantic Ridge?

Raws li cov phiaj xwm tectonic txav sib nrug, pob zeb tau rub los ntawm qhov tob ntawm qhov sib kis axis thiab melts thaum nws depressurizes. Lub pob zeb molten nce mus rau hauv qab dej hiav txwv thiab txias kom tsim cov txheej ntawm crust uas paving dej hiav txwv pem teb.

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