GEOLOGY: PLATE TECTONICS Use the links below to explore available resources covering major concepts associated with the study of plate tectonics. Resources in this section pertain to the theory of continental drift, plate tectonics, mantle convection, plate boundaries, hot spots, earthquake waves and earthquake analysis.
CORE 7-1 SCIENCE MR. T
On 28 March 1964, a magnitude 9.1 quake shook the Prince William Sound in Alaska. Further strong quakes occurred on 26 December 2004 off the north-eastern coast of Indonesia in the Indian Ocean with a magnitude of 9.2, and on 11 March 2010 in the Pacific Ocean off the east coast of Japan with a magnitude of 9.0.
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At plate boundaries, plates collide, move apart, move under or over each other, or slide past one another. The theory of plate tectonics describes how the plates move, interact, and change the physical landscape. The Plate Tectonics Gizmo™ shows a cross-section, or side view, of Earth. (Not to scale.)
HW #1 - Plate Tectonics and Rocks and Minerals – ANSWER KEY 1) a) What is the average thickness of the oceanic crust - give your answer both in km and miles – 5 km or approx. 3 miles b) What is the average thickness of the continental crust - give your answer both in km and miles – 30 to 35 km or approx. 19-22 miles
Delve into the structure of the Earth to learn what causes earthquakes, volcanoes, and more.
Plate tectonics. Tectonic plates are pieces of the rocky outer layer of the Earth known as the crust. Collision zones form when two continental plates collide. Neither plate is forced under the other, and so both are forced up and form fold mountains.