'Mantle plumes' diaporamas de présentation

SELF-ORGANIZED BREAKUP OF GONDWANA: AN ARGUMENT AGAINST THE DEEP MANTLE PLUME PARADIGM Jim Sears

SELF-ORGANIZED BREAKUP OF GONDWANA: AN ARGUMENT AGAINST THE DEEP MANTLE PLUME PARADIGM Jim Sears University of Montana, USA. HEARD ISLAND HOT SPOT. THE DEEP MANTLE PLUME PARADIGM AN INTEGRAL COMPONENT OF PLATE TECTONICS SINCE J.T. WILSON (1963) AND W.J. MORGAN (1981).

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Volcanism and Volcanic Hazards

An volcano is a mountain from which lava and hot gasses erupt ... Lava from Nyiragongo volcano, inundates Goma, Congo. Goma airport closed by lava flow ...

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Volcanism and Volcanic Hazards

Volcanism and Volcanic Hazards. Bill Menke September 21, 2005. Questions to think about. Which is the most dangerous volcano in the world? What group of people are most endangered by volcanoes. Summary. What is a volcano? Where does lava come from and why do volcanoes erupt?

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GEOL: CHAPTER 5

GEOL: CHAPTER 5. Volcanoes and Volcanism. Lava Flows. Usually move slowly Lava tube: Margins and upper surface solidify Liquid lava flows rapidly through tube for long distances Leaves cave with skylights. Lava Flows , cont. Pahoehoe Ropy surface like taffy Less viscous Aa

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Earth Science

Earth Science. Plate Tectonics: A Scientific Theory Unfolds Chapter 7. Continental drift: an idea before its time . Alfred Wegener First proposed hypothesis, 1915 Published The Origin of Continents and Oceans Continental drift hypothesis

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Igneous Rocks

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Earth Science, 12e

Earth Science, 12e. Plate Tectonics: A Scientific Theory Unfolds Chapter 7. Continental drift: an idea before its time. Alfred Wegener First proposed hypothesis, 1915 Published The Origin of Continents and Oceans Continental drift hypothesis

461 views • 36 slides

Meteor Crater, Arizona

http://www.solarviews.com/eng/tercrate.htm. 1.2 kilometers (0.7 miles) 40,000 years old. Meteor Crater, Arizona. 0.9 kilometers (0.5 miles) 300,000 years old. Wolfe Creek, Australia. 17 kilometers (10.5 miles) 200 million years old. Aorounga, Chad, Africa. 100 kilometers (62 miles)

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Large Low Shear Velocity Provinces in the lowermost mantle,

Large Low Shear Velocity Provinces in the lowermost mantle, and Plume Generation Zones at their margins. Bernhard Steinberger. Collaborators: Kevin Burke (University of Houston), Trond Torsvik, Mark Smethurst (NGU), Thorsten Becker (University of Southern California).

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Tectonomagmatic Evolution of the Midcontinent Rift

Tectonomagmatic Evolution of the Midcontinent Rift. North America (Laurentia) at 1.1 Ga. Continental Rifting- The creation of ocean basins. Mantle Plumes and Flood Basalts. Magmatic Underplating of the Crust A Consequence of Mantle Plume Magmatism. LIPs-Large Igneous Provinces.

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PLATE TECTONIC QUIZ

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Extinction of Dinosaurs

Extinction of Dinosaurs. By Jenn Collins, Meghan McCurdy, & Jen Bayer. Questions to Consider . Name the theories outlining the dinosaur extinction. How long ago did the asteroid hit the earth? What are mantle plumes? Why could mantle plumes have caused the extinction of dinosaurs?

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10.3 Plate Tectonics

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Volcanoes Plate tectonics part 2

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Hot Spots and Mantle Plumes

Hot Spots and Mantle Plumes. Hot Spots. Hot Spots are places in the world where molten material from a source near the mantle-core boundary works its way up to the surface of the Earth The molten material is not derived from the subduction of plates

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Monday December 10, 2012

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A summary of plate boundaries and igneous activity

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Hot Spots

Hot Spots. By: Brenna, Emily, and Nadine. What are Hot Spots?. A hotspot is a location on the Earth's surface that has experienced active volcanoes for a long period of time Hot spots are formed by mantle plumes. Mantle Plumes. Are unusually hot regions of the mantle

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The first 80% of the History of Venus?

The first 80% of the History of Venus?. Some Geological Conclusions from Magellan Analysis. -Volcanism and tectonism are the most abundant geological processes.

263 views • 6 slides