Cinder cone volcano eruptions are like a hybrid between a shield and composite eruption, though the characteristics are more similar to the shield volcano. Like a shield volcano, cinder cone volcanoes feature basaltic lava. However, their lava is slightly thicker. This allows for the trapping of ...
A volcanic pipe is the channel bored through the earth's crust that allows molten material from amagmachamber deep below the surface to travel up and out during a volcanic eruption. The entryway for magma into the pipe is called a vent, which ends in the depression called acrater. Lava, ...
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What process creates metamorphic rocks? What are three main processes involved in clastic rock formation? Which natural forces can create sediments? How do uplift and erosion help to form a batholith? What type of weathering creates karst topography? How are headlands formed by erosion? By what ...
The presence of certain gases near the surface can also indicate that a volcano is near eruption. Lava flowing into ocean water creates an acidic, steam-like cloud called a laze, short for “lava haze.” Sulfur dioxide can combine with other chemicals and gases to create volcanic smog ...
spewed from its chamber through the main vent. Lava, rocks, ash and other debris shoot out or roll over the volcano’s sides. The volcano’s actual structure accretes over time. After each eruption, the lava and other volcanic material cools around the volcano and creates a hard layer of...
Composite Volcano Examples Lesson Summary Frequently Asked Questions How does a stratovolcano form? Tectonic plate movement causes the seismic activity that creates volcanoes and earthquakes. A stratovolcano then forms when layers of ash and lava pile up to create the cone and slopes of the volcano...
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What type of thunderstorm creates mesocyclone? What are the air currents around a thunderstorm? Which type of cloud is tall and associated with thunderstorms? Very severe thunderstorms can form when what happens? What type of weather occurs during a waterspout?
As for that old idea that an eruption is “overdue,” it turns out volcanos don’t work that way. We take that image from earthquakes, which we all know a little too much about because they’re common in California. Earthquakes can be overdue because the plates of the Earth move consta...