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| Pahoehoe Lava | A'a' Lava | Lava Flow |
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| Lava Fountain | Lava Pillow | Lava Lake |
| Lava Formations | ||||||||
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| Lava tubes are created when lava hardens over the top of a main pahoehoe lava flow or channel on the surface. The crust forms a ceiling over the lava flow closing it in. There is usually a main lava channel and some smaller lava channels form a lava-flow field. The lava tube is made when the flow of lava stops at the vent of the volcano and the lava tube drains. Long strings of lava drip from the top of the lava tube and form lava stalagtites. | ||||||||
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