Title

E. M. PINSKY, YU. B. MIRONOV, G. V. AFANASIEV (VSEGEI)
Uranium ore epochs as a reflection in the Earth’s crust of impulses of the Earth’ internal energy

Consistency of extreme values (max and min) of paleointensity with diastrophism epochs (folding and extensional rifting) has been identified based on the analysis of the global database of the Earth’s magnetic field (6185 determinations). Level of paleointensity is associated with rotary regime of the planet. Main epochs of uranium ore formation were correlated with two energetically different types of geodynamic environment: 1 – late stages of supercontinents’ formation (Pangaea), i.e., maximum areal development of the mature continental crust; 2 – beginning of supercontinents disintegration, i.e., crust destruction. Particular role of the regime of dome­block and block rejuvenation of previously formed geochemical and ore resources in the uranium ore genesis is emphasized. New formulation of the concept “metallogenic epoch” is proposed based on which the methodology of predictive studies is to be corrected.
Keywords: paleomagnetic field, metallogenic epoch, metallogeny, uran.