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Concerted international efforts researchers from Russia, Canada, USA, Germany, Denmark and Norway at the beginning of the XXI century greatly improved our knowledge of the Arctic Ocean. Multi-discipline geological and geophysical programs operated by specialized RVs, often supported by nuclear ice-breakers, included reflection and refraction seismic, Side Scan Sonar bathymetry, bottom sampling, and airborne geophysical surveys. Regional compilations of existing and newly acquired airborne and satellite data brought to light revised modern maps of potential field anomalies. All this activity created prerequisites of new analysis and revision of existing regional geological concepts.
The optimal, to the best of our knowledge, seismic stratigraphy model was created for the Arctic Ocean sedimentary cover. Based on the ACES well core (the Lomonosov Ridge, 2004) and ages of the regional unconformities, the Cenozoic portion of the sedimentary cover was subdivided in two seismic-stratigraphic...