Tectonics and sedimentation

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Exercise • How deeply an iceberg extends beneath water? • Density of water=1 gcm3 • Density of water=1 g.cm3 • Density of ice=0.9 g.cm3 • Height above fluid surface=1m
Implication for mountain ranges • Continents are buoyant crust that floats on a denser mantle. • Continental crust = 2 8 gcm3 • Continental crust = 2.8 g.cm3 • Mantle = 3.3 g.cm3 • Average elevation of continents = 1km Ex. How deep p must the continental root extend down into the mantle to support that elevation?
Page 1 and 2: Tectonics and sedimentation
Page 3 and 4: Basins related to convergent margin
Page 5 and 6: Foreland The Himalayan orogeny The
Page 7 and 8: Example of ocean-continent collisio
Page 9 and 10: Isostasy • Based on Archimede pri
Page 11 and 12: Airy model
Page 13 and 14: Local vs. Flexural or Regional isos
Page 15: In practice • For a buoyant solid
Page 20: Geohistory analysis
Page 25 and 26: Cratonic Catocbas basin Time Strike
Page 27 and 28: Thin- versus thick- sckinned ddefor
Page 29 and 30: Preconditions to form a continuous
Page 31 and 32: Component of tectonic subsidence ii
Page 33 and 34: Example of broken foreland: the Roc
Page 35: Sediments in foreland basins • RR

Tectonics and sedimentation

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