Abstract
The article considers maps of the field of lithospheric magnetic anomalies—images of the deep structures of the Arctic Ocean—constructed from observations by the CHAMP satellite. The lithospheric magnetic anomalies corresponding to the most significant tectonic structures were revealed: Lomonosov Ridge, Mendeleev Ridge, Alpha Rise, and the Amundsen, Podvodnikov and Makarov basins. The distribution of the regional magnetic anomaly field, which is a complex set of positive and negative segments of various shapes and amplitudes, is discussed in light of the modern geological and geophysical views on the structure of the Arctic Ocean lithosphere. The constructed lithospheric magnetic field model indicates that in the region of conjugation with Eurasia the foot and the slope of Lomonosov Ridge are morphologically related to the continental margin, while the area of Mendeleev and Alpha elevations in central Arctic appears to be a single-block structure with a continental-type crust.
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