When we got to the 102nd floor, we made a hard right out of the elevator and there was a door to our left. Jean-Yves Ghazi opens the door to the 103rd floor of the Empire State Building â April 30, 2013 (credit: Evan Bindelglass / CBSNewYork)
The volcanic origin of Madeira Island ... Macaronesia, a group of five archipelagos of volcanic origin located in the North Atlantic is composed of the Madeira Islands, Canary Islands, Cape Verde, and the Azores.The Archipelago of Madeira was created through a Hot Spot.The island is only the top quarter of the entire volcanic system.acaronesia, a group of five archipelagos of volcanic origin located in the North Atlantic is composed of the Madeira Islands, Canary Islands, Cape Verde, and the Azores. The Archipelago of Madeira was created through a Hot Spot. The island is only the top quarter of the entire volcanic system.
Others are formed when the summit of a volcano collapses into an empty magma cavern that had stored the magma prior to eruption. Shield Volcanoes. Shield volcanoes, formed when large flows of lava spread rapidly from central vents or rows of vents, are the largest volcanoes.Because the lava moves rapidly and spreads out in a broad area, it does not form a tall, steep cone. Instead, shield volcanoes are dome-shaped mountains with broad bases and gentle slopes.tratovolcanoes, or composite volcanoes, get their name from the different layers, or strata, of ash and lava that form them. Most stratovolcanoes are irregularly shaped mountains formed by material ejected from both a central vent and other vents on the sides of the mountain.