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La Ruffe
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Laurent LbbR
Laurent LbbR
La ruffe, c’est le nom de la roche rouge du lac du Salagou. Il s'agit d'une forme d'argilite, une combinaison de sédiments argileux et d'oxydes de fer. Ces roches sédimentaires sont datées du Permien (-298 à -252 millions d’années).
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