火山爆发英文.pptx

Volcano Eruption资勘 胡楠楠DefinitionFormationTypesDistributionEffects请在这里键入你的目录内容MenuDefinitionWhatisvolcanoeruption?1Originally,theinterior(内部)oftheearthfilledwithhotmagma.Undertremendous（巨大的）pressure,weakmagmawillbreakthroughtheearthscrust（地壳），causingthevolcano.A volcano is an opening,or rupture（断裂）,in the surface or crust of the Earth or a planetry mass object,which allows hot lava,volcanic ash and gases to escape from magma chamber below the surface.somewordsaboutvolcanoLavaLava岩浆岩浆 volcanicashvolcanicash火山灰火山灰Molten fluid formed in the depth of the earths crustRubble and mineral particles with a diameter less than 2 mmFormation212火山机构当中与主要岩浆通道相连的火山中央喷口main vent火山口;陨石坑;craterTypes3classificationActivevolcanoextinctvolcanodormantvolcanoDistributon4Effects5HarmBenifitsMany of the volcanic materials Many of the volcanic materials Many of the volcanic materials Many of the volcanic materials have important industrial and have important industrial and have important industrial and have important industrial and chemical uses.chemical uses.chemical uses.chemical uses.salt and minerals after an eruption of a volcanoBenifitsVolcanic ash that has Volcanic ash that has Volcanic ash that has Volcanic ash that has weathered greatly weathered greatly weathered greatly weathered greatly improves soil ferility.improves soil ferility.improves soil ferility.improves soil ferility.BenifitsAmazing scenery.林查尼 火山布罗默 火山FinishThanks!