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Plate Tectonics Versus Earth Crust Displacement???

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Author Topic: Plate Tectonics Versus Earth Crust Displacement???  (Read 1047 times)
Carolyn Silver
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« on: September 27, 2009, 04:50:45 am »

Detractors

    * H. Jeffreys - a reknown seismologist, knew that mantle was strong (behaved as an elastic solid for earthquake waves, could hold up mountain ranges). Argued that Wegener's proposed driving mechanism, tidal forces, was a million times too small to deform and displace mantle as continents moved through it.
    * AAPG Symposium (1926) - rejects continental drift in favor of geosyncline theory. Geophysical objections remain strongest.
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