Аннотация:The relationship between the behavior of an ancient geomagnetic field
characteristics (paleointensity and frequency of inversions) and cyclic recurrence of
endogenic and cosmogeneous processes which are conceivably connected with radial
mantle heat transmission and the Earth rotation speed has been studied. It is shown that
endogenic processes affect the behavior of the paleointensity and frequency of
inversions. Large basalt effusions identified with plumes are accompanied by the
changes in paleointensity (by 30-40) % and the frequency of inversions. Characteristic
time intervals of paleointensity variations caused by the formation of plumes makes up
10-20 Ma. The paleointensity varies (by 15-30) % according to phases of the
riftogenesis activization and tension - compression cycles. The dependence of
geomagnetic field behavior on changes of the Earth rotation speed which occurred as a
result of the Earth - Moon - Sun system evolution has been analyzed. Thus, in
accordance with phases of the Earth - Moon distance changes (periodicity about 200
Ma) average values of the paleointensity varied by a factor of two. Besides, the
frequency of inversions, asymmetry of polarity and features of paleointensity variations
changed too.