Video: Stratovolcanoes thiab shield volcanoes muaj dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Shield volcanoes tawg ntsiag to. tawg stratovolcanoes , los yog volcanoes sib xyaw , muaj ntxhab, symmetrical, conical duab tsim nyob rau hauv lub sij hawm los ntawm alternating txheej ntawm lava ntws, roob hluav taws tshauv, cinders thiab lwm yam roob hluav taws cov khoom. Lub qhov cua hauv nruab nrab los yog pawg ntawm cov vents yog nyob rau ntawm qhov ua siab tshaj.
Yog li ntawd, cov ntaub thaiv npog thiab cov volcanoes sib xyaw ua ke muaj dab tsi?
A shield volcano muaj ntaub thaiv npog -zoo li lub cev. Lawv feem ntau loj heev hauv cheeb tsam tab sis lawv cov cones muaj ib tug smoother, qis profile dua volcanoes sib xyaw . Lawv tau zoo li no vim tias lawv cov lava ntws los ntawm basaltic magma, uas muaj qis viscosity tshaj li lava los ntawm volcanoes sib xyaw.
Qhov thib ob, dab tsi nta feem ntau stratovolcanoes thiab cinder cone volcanoes muaj nyob rau hauv ntau? nruj tawg thiab nyias, ntws lava. ntxhab sab thiab tsausmuag tawg . dav puag nrog ntsiag to tawg.
Yog li ntawd, 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.
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.
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