Yuav ua li cas yog ib co piv txwv ntawm volcanoes composite?
Yuav ua li cas yog ib co piv txwv ntawm volcanoes composite?

Video: Yuav ua li cas yog ib co piv txwv ntawm volcanoes composite?

Video: Yuav ua li cas yog ib co piv txwv ntawm volcanoes composite?
Video: USA AND ASIA NEWS (LUS HMOOB) BIDEN NCE SE NTAU -MEKAS MUAJ YEEB NCUAB COOB ZUJ ZUS TUAJ 03/12/2023 2024, Kaum ib hlis
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Nto moo piv txwv ntawm sib xyaw cones yog Mayon Volcano , Philippines, Mount Fuji hauv Nyiv, thiab Mount Rainier, Washington, Tebchaws Asmeskas A . Qee qhov sib xyaw volcanoes ua tau ob rau peb txhiab meters nyob rau hauv qhov siab tshaj lawv lub hauv paus. Feem ntau volcanoes sib xyaw tshwm sim hauv chains thiab raug cais los ntawm ob peb kaum kilometers.

Tsis tas li ntawd, dab tsi yog qhov sib xyaw volcanoes eruptions zoo li?

A volcano sib xyaw yog tsim ntau pua txhiab xyoo los ntawm ntau yam tawg . Cov tawg txhim tsa lub volcano sib xyaw , txheej rau txheej kom txog rau thaum nws towers ntau txhiab meters siab. Qee cov khaubncaws sab nraud povtseg yuav tsim los ntawm lava, thaum lwm tus yuav yog tshauv, pob zeb thiab pyroclastic ntws.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov sib xyaw volcanoes ua los ntawm? Cov tawg roob hluav taws kuj spew tawm eruptions ntawm me me pob zeb thiab tshauv, uas tau tso rau ntawm ob sab ntawm lub roob hluav taws . Yog li ntawd, peb pom qhov ntawd volcanoes sib xyaw yog muaj li ntawm alternating txheej ntawm hardened lava, roob hluav taws tshauv thiab pob zeb tawg, yog vim li cas lawv hu ua ' sib xyaw.

Qhov thib ob, qhov twg yog qhov sib xyaw volcanoes pom?

Composite volcanoes feem ntau pom nyob rau ntawm qhov chaw puas tsuaj. Piv txwv ntawm cov volcanoes sib xyaw suav nrog Mount Fuji ( Nyiv ), Mount St Helens (USA) thiab Mount Pinatubo (Philippines).

Qhov twg feem ntau cov volcanoes sib xyaw ua ke?

Lub Nplhaib ntawm Hluav Taws Feem ntau cov volcanoes sib xyaw ua ke nyob rau hauv subduction aav uas ciam teb ntawm ib tug tectonic phaj mus nyob rau hauv lwm lub phaj. Tectonic daim hlau sawv cev rau cov khoom ntawm lub ntiaj teb lub pob zeb uas kov thiab txav mus, ua rau av qeeg thiab roob hluav taws formations raws ciam teb no.

Pom zoo: