Video: Leej twg nrhiav tau volcanoes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Nws txoj haujlwm volcanic tau pom nyob rau xyoo 1979 los ntawm Voyager 1 tus kws tshawb fawb pom. Linda Morabito . Kev soj ntsuam ntawm Io los ntawm kev hla lub dav hlau (cov Voyagers, Galileo , Cassini , thiab New Horizons) thiab lub ntiaj teb-based astronomers tau nthuav tawm ntau dua 150 lub roob hluav taws kub.
Tsuas yog li ntawd, leej twg thawj zaug pom volcanoes?
Lub 79 AD eruption ntawm Vesuvius yog thawj volcanic eruption puas tau piav nyob rau hauv kom meej. Los ntawm 18 mais (30 km) sab hnub poob ntawm lub roob hluav taws, Pliny tus Hluas , pom qhov tawg thiab tom qab ntawd sau nws cov kev soj ntsuam hauv ob tsab ntawv.
Ib tug kuj nug tias, thawj lub roob hluav taws muaj pes tsawg xyoo? Lub roob hluav taws tshaj plaws yog tej zaum Etna thiab hais txog 350,000 xyoo qub. Feem ntau ntawm cov volcanoes nquag uas peb paub txog zoo li tsawg dua 100,000 xyoo qub. Volcanoes loj hlob vim lava los yog tshauv accumulates ntawm lub roob hluav taws, ntxiv txheej thiab qhov siab.
Tsis tas li ntawd, leej twg kawm volcanoes?
vulcanologist
Lub roob hluav taws tawg li cas?
Volcanoes tawg thaum molten pob zeb hu ua magma nce mus rau saum npoo. Magma yog tsim thaum lub ntiaj teb mantle melts. Melting tej zaum yuav tshwm sim qhov twg daim hlau tectonic rub sib nrug los yog qhov twg ib phaj raug thawb rau hauv lwm qhov. Magma yog sib dua li pob zeb thiaj li nce mus rau lub ntiaj teb nto.
Pom zoo:
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