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| particularly spectaculat and often deadly , occur when a volcano ejects hot ash and gases in a glowing cloud rolls downhill |
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| A lava cone is built successive flows of lava from a central vent. |
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| Aternating lava flows and beds of pyroclasts build concave shaped compostie volcano. |
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| A bowl shaped pit. Found at the summit of most volcanic mountains. |
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| a large steep walled , basin shaped depression much larger |
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| Earths deep interior escapes explosivley the vent and feeder channel |
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| main style of volcanism along mid ocean ridges, where new oceanic crust is formed. |
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| flows often pile up into immense basalt plateaus. |
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| fixed relative to one another as if they were blow torches |
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| deep as the core mantle boundary |
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| are large volumes of predominatly mafic extrusive and intrsive igneous rocks |
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| most dangerous volcanic events are the torrential flows of wet volcanic debris |
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