Lub lava ntws ceev npaum li cas?
Lub lava ntws ceev npaum li cas?

Video: Lub lava ntws ceev npaum li cas?

Video: Lub lava ntws ceev npaum li cas?
Video: Npau Suav pom Dej zoo phem li cas 2024, Kaum ib hlis
Anonim

Lava ntws speeds sib txawv raws li viscosity thiab nqes hav. Feem ntau, lava ntws maj mam (0.25 mph), nrog rau qhov siab tshaj plaws ntawm 6-30 mph ntawm qhov chaw siab tshaj. Ib qho tshwj xeeb ceev ntawm 20-60 mph tau kaw tom qab lub cev qhuav dej ntawm a lava pas dej ntawm Mount Nyiragongo.

Raws li qhov no, koj puas tuaj yeem tawm ntawm lava ntws?

Ua tau Kuv tawm tawm tus lava thiab ua nws mus rau kev nyab xeeb? Zoo, technically, yog. Feem ntau lava ntws - tshwj xeeb tshaj yog cov uas los ntawm cov ntaub thaiv npog volcanoes, qhov tsawg tawg hom pom nyob rau hauv Hawaii - yog zoo nkauj sluggish. Ntev npaum li qhov lava tsis pom nws txoj kev mus rau hauv lub raj- lossis chute-shaped kwj, nws yuav tej zaum txav qeeb dua ib mais toj ib teev.

Ib sab saum toj no, lava nrawm npaum li cas hauv Hawaii? Cov Hawaiian Volcano Observatory qhia tias "sawv nthwv dej" tau pom nyob rau hauv ib lub channel ntawm lava ntws ntawm ceev mus txog 17 mais toj ib teev. Tau kawg, qhov tawg qeeb qeeb thaum nws nthuav tawm, tsim qhov hu ua "pahoehoe" ntws uas nkag mus.

Ib sab saum toj no, dab tsi yog qhov ceev tshaj plaws lava ntws puas tau sau tseg?

Cov ceev tshaj plaws lava ntws puas tau sau tseg tshwm sim thaum Nyiragongo, nyob rau hauv lub koom pheej ywj pheej ntawm Congo, tawg rau 10 Lub ib hlis ntuj 1977. lava , uas tawg los ntawm kev tawg ntawm lub roob hluav taws lub flank, taug kev ntawm qhov ceev txog li 60 km / h (40 mph).

Lub lava ntws sai npaum li cas ntawm Pompeii?

Lava ua tau ntws qeeb heev. Feem ntau, nws txav kwv yees li 6-30 mais ib teev. Nws yog xav tias tus lava ntawm Pompeii tsis yog tawm ntawm cov cai.

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