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La tectonique des plaques

dure(3/3) Pourquoi ça bouge?

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Le mouvement des plaques, à la surface, trouve son origine dans les entrailles de la terre. Pour autant, et contrairement à une idée reçue, la croûte terrestre ne flotte pas sur un océan de magma: Philippe Huchon, directeur du laboratoire de tectonique de l'Université Pierre et Marie Curie à Paris.

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