The article presents an image dataset of benthic foraminifera assemblage in long sediment core AMK-5890 obtained during the 71st cruise of the research vessel Akademic Mstislav Keldysh in summer 2018 from the northwestern Iceland slope in Denmark Strait (North Atlantic Ocean). In the area of study, dense cold water masses of the East Greenland Current from the Nordic Seas contact and mix with warm salty water of the Irminger Current from the North Atlantic Ocean creating specific conditions for the benthic microfauna habitat which reflect forming the lower link of the global thermohaline circulation. The benthic foraminifera assemblages are a reliable indicator for paleooceanographic and ecological reconstructions describing the environments on the bottom in present and past. In the core AMK-5890, the benthic foraminifera assemblage consists of 63 species some of which were combined into one genus (for example, Fissurina sp.). The dominants, subdominants and species list of benthic foraminifera changed within the core depth. This image dataset helps to fill the gaps in the practical micropaleontological analysis of benthic foraminifera giving better information for the species identification from the modern and Pleistocene sediments.

This paper presents the results of diatom analysis of Holocene sediments from the northeastern part of Norwegian-Greenland Basin in comparison with palynomorph and foraminifera data. Main Holocene paleogeographic events of Norwegian-Greenland Basin were established by micropaleontological data.

Interpretation of our own and published micropaleontological, sedimentological, and isotopic data revealed a diachronic (transgressive in time) warming pattern in the Norwegian-Greenland Basin at the Pleistocene-Holocene boundary. Large-scale accumulation of ice-rafted material ceased between 11800 and 10 000 years ago, with a significant delay from the southeast to the northwest of the basin. Active influx of warm Atlantic waters began later, spreading from Norway’s southern continental margin to the center and north of the basin between 11 500 and 10 000 years ago.

Deepwater cores collected at the AMK 5536 and AMK 5524 stations in the northeast of the Norwegian–Greenland Basin during cruise 68 of R/V Akademik Ms