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.
The mixture of molten rock, crystals and dissolved gases from the mantle is called magma. When magma erupts to the Earth's surface, it is called lava. Not all volcanic eruptions happen near the boundaries of tectonic plates. Some eruptions happen in the middle of the plates.These eruptions are caused by mantle streams called plumes. Mantle plumes are formed when hot magma rises beneath the thinner, or weaker, areas of the Earth's crust, creating 'hot spots'. Volcanic islands are formed when mantle plumes form at the bottom of the ocean.ome eruptions happen in the middle of the plates. These eruptions are caused by mantle streams called plumes. Mantle plumes are formed when hot magma rises beneath the thinner, or weaker, areas of the Earth's crust, creating 'hot spots'. Volcanic islands are formed when mantle plumes form at the bottom of the ocean.