'Volcanic arc' presentation slideshows

Chapter 2 Plate Tectonics: A Scientific Revolution Unfolds

Chapter 2 Plate Tectonics: A Scientific Revolution Unfolds. Continental drift: An idea before its time. Alfred Wegener First proposed his continental drift hypothesis in 1915 Published The Origin of Continents and Oceans Continental drift hypothesis

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Plate Tectonics: A Scientific Theory Unfolds

Plate Tectonics: A Scientific Theory Unfolds. Chet Sawyer Desoto High School. Objectives. Briefly discuss the evidence used by Alfred Wegener to support his theory of continental drift. Briefly explain the theory of plate tectonics.

694 views • 43 slides

Trace element characteristics of lavas from destructive plate boundaries.

Trace element characteristics of lavas from destructive plate boundaries. Shane Turner. Trace Elements and Subduction Zones. A trace element is a chemical element which has a concentration of less than 1000 parts per million (ppm) or in other words, makes up 0.1 % of a rock's composition.

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A low power and low noise infrasound sensor for temporary measurements

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Tectonic Plates Boundaries

Tectonic Plates Boundaries. Divergent Boundary. Features. Oceanic from Oceanic Crust. Continental From Continental Crust. Mid-Ocean Ridges Earthquakes Volcanos Black Smoker. Rift Valley Rift Volcanos Earthquakes. Example. Oceanic from Oceanic Crust.

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Plate Tectonics

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Ocean Topography

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Michoacan-Guanajuato Volcanic Field

Scaling laws of the size distribution of monogenetic volcanoes within the Michoacan-Guanajuato Volcanic Field (Mexico). Michoacan-Guanajuato Volcanic Field. 1040 monogenetic volcanoes Mainly basaltic cinder cones Used size of m-volcano defined by basal diameter 1 or very few magma pulses

282 views • 5 slides