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  • 1
    Electronic Resource
    Electronic Resource
    A convection mechanism for explaining episodicity of magmatism and orogeny (1974)
    Springer
    Pure and applied geophysics 112 (1974), S. 106-117 
    Details
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary The hypothesis is developed that convection takes place continuously in the upper mantle and episodically also in the lower mantle. The reason for the latter assumption is seen in the temperature dependence of the viscosity. By radioactive heating of the lower mantle the viscosity gradually decreases until the critical Rayleigh number is achieved. The lower mantle convection initiated in this way, however, disappears after sufficient heat has been transferred to the exterior. This heat transfer becomes evident by an increase of igneous and tectonic activities in the crust.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00875924
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