Across
- 2. A white cloud of a mixture of condensed seawater steam, hydrochloric acid gas, and shards of volcanic glass
- 3. Molten rock beneath Earth’s surface capable of intrusion and extrusion.
- 4. A hazy mixture of sulfur dioxide (SO2) gas and aerosols of sulfuric acid and other sulfates created when volcanic gases interact with oxygen and moisture in the atmosphere and sunlight.
- 5. Bomb A pyroclast with a diameter greater than 64 mm (2.5 inches) with a rounded or ellipsoidal shape that indicates that it was wholly or partially molten during eruption and flight.
- 8. An outpouring of molten rock from a vent onto Earth's surface during an effusive volcanic eruption
- 9. The channel way or passage, which may be pipe-shaped, that brings magma from a reservoir or chamber to the vent at the surface where it is erupted.
- 10. An accumulation of highly molten bombs that landed while still molten and welded together to form solid rock, spatter cones, or sometimes feed lava flows.
Down
- 1. A spray of molten lava propelled a few tens to hundreds of feet (meters) into the air by rapid expansion of gas bubbles.
- 2. A body of lava, with one or more lava flows
- 4. The opening or place at Earth’s surface through which magma, rock fragments, and/or volcanic gases are emitted.
- 6. A new area or region of a lava flow formed where lava from the molten interior of a previously-formed lobe breaks out through its sides or upper margin to create a distinct lava flow advance.
- 7. Conduit through which lava travels beneath the surface of a lava flow
- 11. A collective term used for all pyroclastic material, regardless of size, shape, or origin, ejected into the air during a volcanic eruption.