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The first stage gave birth to a 44 sq.km large paleo-volcano whose only remains nowadays cover 5 % of the isle (3 sq.km) with "Le Fernand" (731 m), "Le Grand Balcon" (the upper balcony - 616 m) and "Le Pignon" (the gable - 720 m). |
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The second stage produced the neovolcano "La Dives" and some lava- flows out of the caldeira. Some of them may be several kilometres long, the largest of all being the 600 m wide "Plateau des Tourbieres" (peat-bog plateau); some others created lava-tunnels too. Scoria-cones appeared at the end of the volcanic activity; the recentest of them (photo) dates back to the previous century. |