A dome-shaped volcano tsim los ntawm ntau lub lava domes thiab ntws.
Lub roob hluav taws yog dab tsi?
Lava domes, tseem hu ua volcanic domes, yog bulbous mounds tsim los ntawm kev tawg qeeb qeeb ntawm lava los ntawm lub roob hluav taws. Lawv feem ntau ntsib nyob rau hauv lub craters los yog nyob rau flanks ntawm loj stratovolcanoes.
volcanic domes tsim li cas?
Lava domes daim thaum lub sijhawm tawg hluav taws kub uas muaj cov magma hnyav heev hauv thaj tsam ze-qhov cua. Thaum lub sijhawm ua haujlwm no, cov roj hluav taws xob tsim nyob rau hauv lub lava dome lossis thaj chaw qhov dej ntiav tuaj yeem ua rau cov qauv tsis ruaj khov thiab ua rau muaj kev hloov pauv mus rau qhov tawg tawg lossis lava dome tawg.
lava dome tshiab txhais li cas?
Nyob rau hauv volcanology, lub lava dome yog ib ncig mound-shaped protrusion uas tshwm sim los ntawm qeeb extrusion ntawm viscous lava los ntawm lub roob hluav taws. Dome-building eruptions muaj ntau, tshwj xeeb tshaj yog nyob rau hauv convergent phaj ciam teb chaw.
Rhyolite dome yog dab tsi?
Rhyolitic domes yog tus yam ntxwv los ntawm ua neej nyob luv luv ntawm pyroclastic thiab effusive kev ua ub no cuam tshuam nrog cov xwm txheej tsis sib xws uas pom meej nyob rau ntawm qhov kev txiav txim ntawm xyoo mus rau kaum xyoo lossis tej zaum nce mus rau centuries.
