| A | B |
|---|
| volcanic ash | small fragments of hot lava that cool and fall as solid particles |
| Lava fountain | relatively quiet eruption of basaltic lava |
| geyser | hole in the ground that periodically releases hot water and steam |
| fissure | weaknesses in earth surface along which magma can travel |
| pahoehoe | lava flows with smooth or ropey surface textures |
| fumerole | opening in the earth's crust through which hot gasses excape to the Earth's surface |
| Stratovolcano | typically cone-shaped and very large |
| cinder cone | a cone shaped hill made of tephra |
| spatter cone | a low, steep sided cone built up of large drops and blobs of lava splashed up at a fissure or vent |
| submarine eruption | a volcanic eruption in the ocean |
