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Pour la première fois en Martinique, des champs de mégarides, présents dans des sables grossiers à très grossiers et dans des graviers, ont été reconnus par sonar à balayage latéral, entre 20 et 60 m de profondeur sur le plateau insulaire atlantique. D'autres structures sédimentaires similaires avaient déjà été repérées sur les plateaux de Guadeloupe et de Colombie. Après avoir analysé les rôles relatifs...
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