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RESOURCEs & Environment Ch. 3. internal energy of the earth. Volcanic clouds in Iceland (April 14, 2010) http://inthepark.egloos.com/4727911. 3-1. plate tectonics. 3-1-1. Plate Tectonics?
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RESOURCEs & EnvironmentCh. 3. internal energy of the earth Volcanic clouds in Iceland (April 14, 2010) http://inthepark.egloos.com/4727911
3-1. plate tectonics • 3-1-1. Plate Tectonics? • Unified theory of explaining (all) the geological processes (or phenomena) with the dynamics (motion) of the plates (on the surface of the Earth) • (tectonics from tectonicus, meaning “pertaining to building”)
3-1-2. Histories • Theory of continental drift: • 16C Abraham Ortellius • 17C Francis Bacon • 19C Antonio Snider-Pellegrini • 1912 Alfred Wegener (1880-1930) – scientifically established the theory • Theory of sea-floor spreading • Early 1960s, Robert S. Dietz , Harry H. Hess • Mantle convection • 1928 Arthur Holmes
Evidences of continental drift – rocks http://www.indiana.edu/~g103/G103/week11/week11.htm
Evidences of sea floor spreading – geomagnetic reversal http://www.indiana.edu/~geol116/week7/week7.htm
3-1-3. Plates & Plate Boundaries • Boundaries • Convergent: • Divergent • Transform (or Conservative)
http://www.uwsp.edu/geo/faculty/lemke/geog101/lecture_outlines/18_plate_tectonics.html.http://www.uwsp.edu/geo/faculty/lemke/geog101/lecture_outlines/18_plate_tectonics.html.