Video: Lub lava ntws ceev npaum li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Yuav ua li cas tshwm sim thaum physiological ceev yog siab tshaj arithmetic ceev?
Lub physiological ceev los yog tiag tiag pejxeem yog tus naj npawb ntawm cov neeg nyob rau hauv ib cheeb tsam ntawm arableland. Lub cev muaj zog ntau dua qhia tau hais tias cov av ua liaj ua teb muaj ntau dua thiab tuaj yeem ncav cuag nws cov khoom tso tawm sai dua li lub teb chaws uas muaj qhov ntom ntom ntawm lub cev
Hom lava ntws nrawm tshaj plaws li cas?
Feem ntau cov lava yog basaltic, uas yog cov kua dej thiab cov lava dawb ntws raws li koj yuav tuaj hla. Muab piv rau ntau hom, nws tau ua los ntawm qis feem pua ntawm silicon thiab oxygen chains. Cov ntsiab lus no tsim "lub hauv paus" ntawm lava, yog li nrog tsawg ntawm lawv tam sim no, lava tsis tshua muaj kuab, thiab nws tuaj yeem ntws sai dua
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom
Yuav ua li cas lava ntws los ntawm lub tshav pob hluav taws xob?
Shield volcanoes yog tsim los ntawm lava ntws ntawm qis viscosity - lava uas ntws yooj yim. Yog li ntawd, lub roob roob hluav taws uas muaj qhov dav dav yog tsim los ntawm lub sijhawm los ntawm kev ntws tom qab ntws ntawm cov kua dej basaltic lava tawm los ntawm cov vents lossis fissures ntawm lub roob hluav taws
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm