Science, Maths & Technology
Why do volcanoes erupt?
...think what this is? The dispersal of the umbrella cloud is controlled by the wind. When there is a wind, the umbrella region is blown off to one side so tephra is deposited asymmetrically. When the thickness of an airfall deposit is contoured, the pattern is consistent with the wind direction during the eruption. Vulcanian eruptions [Vulcano, a volcanic island in the Med...