Specific features of the upper sedimentary cover and slump structures in the NW Pacific and the Bering Sea based on seismoacoustic profiling data

The authors studied geology-geophysical data that had been obtained during German RV «Sonne» Cruise in NW Pacific organized in frames of the Russian-German Project KALMAR («Kurile-Kamchatka and Aleutian Marginal sea-island arc systems: geodynamic and climate interaction in space and time»). The prof...

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Bibliographic Details
Main Authors: Tsukanov, N.V., Dozorova, K.A., Gaedicke, C.
Format: Article in Journal/Newspaper
Language:Russian
Published: Institute of Volcanology and Seismology FEB RAS 2019
Subjects:
North-Western Pacific
sedimentary cover
seismoacoustic profiling
landslides
Geology
QE1-996.5
Bering Sea
Pacific
Shirshov Ridge
Kamchatka
Online Access:https://doi.org/10.31431/1816-5524-2019-1-41-73-8
https://doaj.org/article/ab9c0d1fb77c49169a983fbfba4aa464
Description
Summary:The authors studied geology-geophysical data that had been obtained during German RV «Sonne» Cruise in NW Pacific organized in frames of the Russian-German Project KALMAR («Kurile-Kamchatka and Aleutian Marginal sea-island arc systems: geodynamic and climate interaction in space and time»). The profiling was carried out using PARASOUND P70 system, including narrow-beam system and sub-bottom profiler. The study showed that besides undisturbed sedimentation, landside processes are widely spread in open areas of the ocean and the Bering Sea as well as deposits caused by strong submarine currents. Landslides were revealed on the slopes of the Emperor Ridge in the NW Pacific and the Shirshov Ridge submarine mountains, in canyons near Eastern Kamchatka coasts and apparently in many other areas.

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