Volcanoes zoo li cas?
Volcanoes zoo li cas?

Video: Volcanoes zoo li cas?

Video: Volcanoes zoo li cas?
Video: Tu tus kheej lis cas thaum muaj me nyuam thiaj zoo Nkauj! 2024, Kaum ib hlis
Anonim

Kev tawg. Txhua hom roob hluav taws erupts los ntawm tib yam txheej txheem pib. Cov eruptions feem ntau tshwm sim nyob rau hauv tib yam qhov chaw vim lawv koom nrog tib yam daim hlau. Volcanoes evolve thaum molten lava-magma saum av-txias, tsim qhov yooj yim roob hluav taws hom.

Raws li, volcanoes muaj dab tsi?

Muaj ob peb lub ntsiab lus uas txawv roob hluav taws hom muaj sib xws yog: ib lub qhov siab tshaj plaws - lub qhov ncauj ntawm lub roob hluav taws , qhov twg lub lava muaj. lub magma chamber - qhov twg cov lava qhov dej hauv av. lub qhov cua hauv nruab nrab - coj los ntawm lub magma chamber mus rau qhov ua siab tshaj crater.

Ib tug kuj yuav nug, av qeeg thiab volcanoes zoo li cas? Qee qhov, tab sis tsis yog tag nrho, av qeeg muaj feem rau roob hluav taws . Piv txwv li, feem ntau av qeeg yog raws cov npoo ntawm daim hlau tectonic. Feem ntau av qeeg ncaj qha hauv qab a roob hluav taws yog tshwm sim los ntawm kev txav ntawm magma. Cov magma tso siab rau cov pob zeb kom txog thaum nws tawg pob zeb.

Kuj paub, 3 hom volcanoes zoo li cas?

Muaj peb lub ntsiab hom volcano - composite los yog strato, ntaub thaiv npog thiab dome. Composite roob hluav taws , qee zaum hu ua strato roob hluav taws , yog ntxhab sided cones tsim los ntawm txheej ntawm tshauv thiab [lava] ntws. Lub lava khov no muaj ntau yam ua rau vim li cas lawv thiaj li zoo li lawv.

Dab tsi yog qhov sib xyaw volcanoes thiab cov ntaub thaiv npog volcanoes muaj sib xws?

Zaj Lus Qhia Composite khob khob volcanoes yog cone-puab roob hluav taws tsim los ntawm cov txheej ntawm lava, tshauv thiab pob zeb khib nyiab. Composite khob khob volcanoes tau loj hlob mus rau qhov siab ntawm 8,000 ko taw lossis ntau dua thiab muaj tawg tawg. Shield volcanoes yog dav, domed-puab roob hluav taws nrog ntev, maj mam sloped sab.

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