{"id":5548,"date":"2019-05-03T18:27:09","date_gmt":"2019-05-03T14:27:09","guid":{"rendered":"http:\/\/college-adam-de-villiers.ac-reunion.fr\/?p=5548"},"modified":"2019-05-03T18:27:09","modified_gmt":"2019-05-03T14:27:09","slug":"sortie-au-volcan-pour-les-4-vacoa","status":"publish","type":"post","link":"https:\/\/etab.ac-reunion.fr\/clg-adam-de-villiers\/sortie-au-volcan-pour-les-4-vacoa\/","title":{"rendered":"Sortie au Volcan pour les 4\u00b0 Vacoa"},"content":{"rendered":"\n

<\/h2>\n\n\n\n

Le jeudi 02 mai 2019, les \u00e9l\u00e8ves de la quatri\u00e8me Vacoa \u00e9taient de sortie sur la route du volcan jusqu’au Pas de Bellecombe.<\/p>\n\n\n\n

Cette sortie avait pour objectif d’appr\u00e9hender le risque volcanique \u00e0 l’\u00eele de La R\u00e9union.<\/p>\n\n\n\n

Les \u00e9l\u00e8ves ont tout d’abord constat\u00e9 que la ville de Saint-Pierre se situe \nsur des coul\u00e9es de lave et certaines ont un \u00e2ge de 2000 ans.<\/p>\n\n\n\n

L’objectif de la sortie \u00e9tait tout d’abord de comprendre que ces coul\u00e9es \nviennent de Pitons volcaniques localis\u00e9s au niveau de la Plaine des Cafres.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Ensuite les \u00e9l\u00e8ves ont cherch\u00e9 \u00e0 comprendre l’anomalie de la Rivi\u00e8re des Remparts, pour constater que cette rivi\u00e8re est issue d’un effondrement et de glissements vers l’est du Massif de la Fournaise il y a 300000, 65000 et 5000 ans.<\/p>\n\n\n\n

Ces glissements brutaux \u00e9taient accompagn\u00e9s de s\u00e9ismes violents sur toute l’\u00eele et pour le dernier qui a donn\u00e9 naissance \u00e0 l’enclos Fouqu\u00e9, on peut observer des traces d’une d\u00e9ferlante basale cataclysmique.<\/p>\n\n\n\n

Cette journ\u00e9e a \u00e9t\u00e9 assez agr\u00e9able malgr\u00e9 le froid et l’humidit\u00e9 ; les \u00e9l\u00e8ves ont \u00e9t\u00e9 attentifs, int\u00e9ress\u00e9s par les explications donn\u00e9es.<\/p>\n\n\n\n

Mr LAURET Jean-Michel<\/p>\n\n\n\n

Professeur de SVT.<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Le jeudi 02 mai 2019, les \u00e9l\u00e8ves de la quatri\u00e8me Vacoa \u00e9taient de sortie sur la route du volcan jusqu’au Pas de Bellecombe. Cette sortie avait pour objectif d’appr\u00e9hender le risque volcanique \u00e0 l’\u00eele de La R\u00e9union. Les \u00e9l\u00e8ves ont tout d’abord constat\u00e9 que la ville de Saint-Pierre se situe\u2026<\/p>\n

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