Abstract
Magnetic properties of late Cretaceous-Cenozoic basalts are discussed in relation to their composition and conditions of crystallization during the cooling of the melt in subaerial and subaqueous environments. The possible effects of secondary oxidation (maghemitization), at least in certain cases, local tectonic deformations and paleosecular variations of geomagnetic field on the distribution of NRM directions are noted. Paleomagnetic reference data for individual volcano genic complexes of the Sikhote-Alin, Sakhalin and South Kurils regions are given, and a comparison with paleomagnetic data for the same aged rocks of Japan and Korea is made.
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