miércoles, 20 de mayo de 2009

Volcanic Features


The most common perception of a volcanoe is of a conical mountain, spewing lava and posionous gasses from its crater. But the features of all vocanoes are much more compicated. Some volcanoes have lava domes instead of a crater, for example. Others present big landscapes such as huge plateous. Others types of volcanoes that are on moons of some planets dont have magama activity.


Volcanic fissure vents are flat linear through wich lava emerges

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