Pelean tawg yog txuam nrog tawg tawguas tsim cov pyroclastic ntws, ntom ntom sib xyaw ntawm cov hluav taws kub hluav taws kub thiab cov roj tau piav qhia hauv ntu Lava, roj, thiab lwm yam kev phom sij. … Plinian huab cua tawg tuaj yeem nce mus rau hauv lub stratosphere thiab qee zaum tsis tu ncua ua rau ob peb teev.
Qhov txawv ntawm Strombolian thiab Plinian tawg yog dab tsi?
Subplinian eruption kab yog siab txog 20 km siab, thiab tsis ruaj khov, qhov Plinian eruptions muaj 20 txog 35 km siab kab uas yuav vau los ua pyroclastic ceev tam sim no (PDC's). Tsis tshua muaj Ultraplinian eruptions yog loj dua thiab muaj ntau dua magma tawm tus nqi tshaj Plinian eruptions.
Plinian tawg tawg txawv ntawm lwm qhov tawg tawg li cas?
Kev tawg tawg yog qhov tshwm sim los ntawm kev tawg ntawm cov pa roj uas ua rau magma thiab tephra. Effusive eruptions, lub sijhawm no, yog tus cwj pwm los ntawm kev tawm ntawm lava yam tsis muaj qhov tawg loj heev. … Nyob rau lwm qhov, Plinian eruptions yog qhov xwm txheej loj, ua phem, thiab txaus ntshai heev
Plinian style tawg yog dab tsi?
A Plinian eruption tam sim no txhais tau tias yog ib qho uas ua rau muaj kev cuam tshuam cov plume ntawm pyroclasts thiab roj nce >25km saum hiav txwv.
Dab tsi yog qhov txawv ntawm qhov tawg liab thiab grey?
Qhov laj thawj rau kev tawg tawg feem ntau yog qhov siab viscosity ntawm magma ua ke nrog cov ntsiab lus siab. Lub roob hluav taws uas feem ntau muaj kev tawg tawg kuj tseem hu ua "grey volcanoes", vim cov huab cua tshauv lawv tsim grey. … Qhov opposite yog effusive eruptions ntawm lub so-hu ua "liab volcanoes ".
