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Erica Moyer Sara Martin Noah Hurrle

Hot Spots. Erica Moyer Sara Martin Noah Hurrle. What is a hot spot?. Are unusually hot regions of Earth’s mantle where high-temperature plumes of mantle material rise toward the surface. Mantle Plumes. they originate deep in the mantle

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Erica Moyer Sara Martin Noah Hurrle

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  1. Hot Spots Erica Moyer Sara Martin Noah Hurrle

  2. What is a hot spot? Are unusually hot regions of Earth’s mantle where high-temperature plumes of mantle material rise toward the surface.

  3. Mantle Plumes • they originate deep in the mantle • the intense heat of the plumes melts the rocks, making the force upward toward the crust as magma • researchers have found that plumes develop 1,800 miles beneath the Earth’s surface

  4. How hot spots effect the crust. • when magma melts through the crust it will form volcanoes. • the volcano growth and death over millions of years have left long trail of volcanic island and seamounts

  5. Formation of Hawaiian Islands • Each island is made up of at least one primary volcano. • 5 Major Volcanoes: • Kilauea • Mauna Loa • Mauna Kea • Hualalai • Kohala • Mauna Lou is the largest active volcano on Earth. • These volcanoes erupt rocks known as basalt. • The Hawaiian volcanoes were produced by the Hawaiian hot spot, which is presently under the Big Island of Hawaii.

  6. Kilauea Volcano 3 mile wide lava channel

  7. Did the Pacific Plate change direction? • Yes, the floor of the pacific ocean is divided into several plates. • The largest plate is moving north west relative to hot spots coming up through the mantle from the plates. • ( They will generate islands like Hawaii) • These plates rotate around a point south of Australia. • The plates that move around Hawaii move about 7 cm a year, or as fast as your finger nail grows.

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