Les débits de CO2 et de SO2 volcaniques dans l’atmosphère |
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| Authors: | F Le Guern |
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| Institution: | 1. Centre des Faibles Radioactivités, C.N.R.S., 91190, Gif sur Yvette, France
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| Abstract: | Volcanic contribution to the atmosphere can be re-evaluated as 5×107 ton/year of CO2, which is less than recent industrial contribution. Degassing is more abundant from volcanoes where magma convections are significant. Effective degassing occurs before the magma reaches the surface, that is, when the magma is fluid. Volcanic gas in the atmosphere can affect the population or the vegetation around volcanoes. |
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