Title

L.A. DARAGAN-­SUSHCHOVA, D.M. CHITAYLO (VSEGEI), A.V. ZIMOVSKIY (MAGE)

Velocity analysis of sedimentary basins of the Arctic Ocean

The analysis of layer and average velocities obtained from the results of soundings by the reflection and refraction waves. Identified similarities and differences in the regularities of the distribution of average and layer velocities in various sedimentary cover morphostructures of the North-­East Arctic. It is possible to allocate two groups according to the similarity of speed distribution. The first group characterized, in general, smaller values of the velocities, compared with the second, and includes the Eurasian basin, the Makarov basin, the western part of the Podvodnikov basin and, in part, the Lomonosov ridge. The second is the North Chukchi and Charlie troughs, the eastern part of the Podvodnikov basin and the Chukchi plateau. The averaged curve of average velocities for all structures can be used in small-­scale structural constructions.
Keywords: average velocity, layer velocity, Arctic Ocean.