International Geologiical Congress - Oslo 2008

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EIL-01 General contributions to the lithosphere

 

Global cyclicity of magmatical processes in the crust and mantle during the evolution

 

Dmitry Glazachev, Moscow Engineering Physics Institute, Geosphere Dinamics Institute (Russian Federation)
 

 

More than an age the theme of global (Wilson's, Bertran's and Stille's cycles was argued by geologists. The variations of endogenous activity intensity presented graphically for upper mantle and crust in the interval of the whole geological time were introduced in "The time concept in geological history of Earth", 2002 (in Russian). More than 12 thousands of U-Th-Pb, K-Ar, Sm-Nd systems dating were mentioned. 100 million year cyclicity is assigned by Balashov Yu.A. After numeralization of Balashov's graphical data temporal line Fourier analysis was carried out. It was determined that Bertran's and Stille's cycles were repeatedly observed during long intervals (an order of billion years). Evidently, it is shown presence of cycles close to Wilson's.

 

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