Ib lub roob hluav taws kub hnyiab yog qhov ua rau lub qhov chaw siab tshaj (kwv yees li 5 degrees) nrog qis qis qis qis qis (kwv yees li 10 degrees) Lub tshav pob hluav taws xob yuav luag tag nrho ntawm cov lava uas nyias nyias. ntws los ntawm lub hauv paus vent. Cov yam ntxwv no tau piav qhia hauv daim duab qhia chaw hluav taws xob daim duab qhia hauv qab no.
Puas thaiv cov roob hluav taws puas muaj qhov chaw me me lossis ntxhab?
Shield volcanoes yog tsim los ntawm yuav luag tag nrho cov lava uas nyias nyias ua los ntawm lub hauv paus qhov cua. … Qhov qis viscosity ntawm magma tso cai rau lub lava taug kev nqes nqes ntawm txoj kab nqes maj mam, tab sis thaum nws txias thiab nws cov viscosity nce, nws cov tuab ua rau ntawm qhov chaw qis dua ua rau me ntsis steeper nqes hav.
Lub roob hluav taws twg muaj qhov tob tob?
Stratovolcano . Stratovolcanoes muaj cov sab laug thiab muaj lub khob zoo li ntau dua li cov ntaub thaiv hluav taws xob. Lawv yog tsim los ntawm viscous, nplaum lava uas tsis ntws yooj yim. Cov lava yog li ntawd tsim nyob ib ncig ntawm lub qhov cua uas ua rau lub roob hluav taws nrog ntxhab sab.
Vim li cas daim thaiv hluav taws xob tsis ntxhab?
Shield volcanoes yuav luag tsuas yog bas alt, ib hom lava uas muaj kua heev thaum tawg. Vim li no cov roob hluav taws thiaj tsis ntxhab (koj ua tau' tpua cov kua dej uas yooj yim khiav downhill).
Vim li cas cov thaiv hluav taws xob muaj qhov chaw siab tshaj plaws?
Qhov chaw maj mam yog qhov tshwm sim ntawm lava viscosity qis, tso cai rau lavas ntws nrawm thiab deb Lub lava ntws (pahoehoe thiab aa) feem ntau pib lawv txoj hauv kev los ntawm cov vents thiab fissures es tsis yog los ntawm qhov ua siab tshaj. Cov flank vents no yog qhov tshwm sim ntawm qhov dav thiab / lossis kev tawg ntawm lub roob hluav taws.
