Volcanoes

5. Travel along bedding planes
7. lava( rough, jagged blocky texture)
8. Clouds of volcanic ash damage planes
10. Porous rock from "frothy" lava
11. The resistance to flow
15. Amount of dissolved gases present in magma
16. Source material for volcanic eruptions
17. Fluid basaltic lava extruded from crustal fractures called fissures
21. Built from ejected basaltic lava (mainly cinder-sized) fragments, forming a steep slope

1. Cuts across bedding surfaces
2. Lavas (occurring along divergent plate boundaries on the ocean floor)
3. Triggered from collapse of volcanic landforms in the ocean
4. (rough, travel short distances)
6. Largest intrusive bodies
8. Opening connected to the magma chamber via a pipe
9. Fiery pyroclastic flow made of hot gases infused with ash and other debris
11. resistant vents left standing after erosion has removed the volcanic cone
12. A summit depression typically greater than 1 kilometer in diameter
13. Mudflow from interaction with debris and water
14. (fire fragments)
18. Lava (resembles a twisted or ropey texture)
19. Magma rises through the crust
20. Steep-walled depression at the summit generally less than 1 kilometer in diameter