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Volcanoes are possible with or without plate tectonics.
Quote from: another_someone on 04/05/2008 20:11:03Volcanoes are possible with or without plate tectonics. By definition volcanoes are tectonic events - you are just plain wrong.
Quote from: JimBob on 04/05/2008 20:54:05Quote from: another_someone on 04/05/2008 20:11:03Volcanoes are possible with or without plate tectonics. By definition volcanoes are tectonic events - you are just plain wrong.I think the key issue here is plate tectonics.Volcanoes are an upwelling of magma through the crust, but they do not require that the crust itself be in motion, or that the crust be broken up into plates, for this to happen.To say that a volcano is a tectonic event is merely to say that it is an event in the crust of the planet. I never questioned that to be the case, and it would be nonsense to question that to be the case. The question was whether that crust is broken up into plates or not.