Аннотация:Fragmentary knowledge on geomagnetic field intensity in Barremian–Cenomanian stage
obtained from sediment rocks is summarized. Three types of periodical variations are
revealed in the paleointensity behavior. The types differ by the amplitude and duration
(tens of millennia, hundreds of millennia and more than million years). It is found
that in all the magnetopolar intervals an alternating of quiet and burst-like regimes of
magnetic field generation is observed, the regimes differing by the oscillation amplitude
and mean values of the paleointensity. It is demonstrated that the mean values of the
paleointensity of quiet regimes of geomagnetic field generation were (0.5–0.8) H0, where
H0 is the intensity of the contemporary magnetic field of the Earth. During burstlike regimes of the geomagnetic field generation the mean values of the paleointensity
were 1.2 H0, whereas the maximal values exceeded H0 by a factor of 3 and more. An
attempt is made to compare variations of the paleointensity with epochs of riftogenesis
and orogenesis. A comparison is performed of the results of geomagnetic field intensity
determination from sediments and thermomagnetized rocks.