Foraminiferal Assemblages in Sediments from Mendeleev Ridge, Arctic Ocean

  title={Foraminiferal Assemblages in Sediments from Mendeleev Ridge, Arctic Ocean},
  author={N. Belyaeva and T. A. Khusid},
Benthic and planktic foraminiferal assemblages from Mendeleev Ridge (Central Arctic Ocean) have been studied in a sediment core approximately 1 m long. Fluctuations of frequency and composition of the foraminiferal assemblages are investigated to determine glacial and interglacial settings. These changes are used to make inferences about nature and thickness of the ice-cover. 
3 Citations
Recent benthic foraminifera of a transect from the North Pole to the Yermak Plateau, eastern central Arctic Ocean
The Recent distribution of living and dead benthic foraminifera of the Arctic Ocean proper has been examined in surface sediments that were sampled during the International Arctic Ocean ExpeditionExpand
The palaeoceanography and glacial history of the Greenland Sea and Spitsbergen Ice Cap over the last 200ka
Piston cores from the continental slope of Spitsbergen were analysed using micropalaeontological, stable isotope and sedimentological techniques. The study attempted to determine theExpand
Deglaciation history and palaeoceanography of the western Spitsbergen margin since the last glacial maximum
Abstract Two high resolution cores from the Spitsbergen margin were studied to increase the understanding of the palaeoceanography and deglaciation of the Spitsbergen continental margin. PlanktonicExpand


Ecology of some Arctic foraminifera
An investigation of the Foraminifera in cores of the bottom sediments of the central Arctic Ocean indicates significant quantitative trends in this relatively uniform environment. ForaminiferalExpand
Arctic Ocean Sediments, Microfauna, and the Climatic Record in Late Cenozoic Time
Deep-sea cores from the Central Arctic Basin yield significant faunal and lithologic evidence of normal and low salinity cycles superimposed upon temperature fluctuations in late Cenozoic time.Expand
Stratigraphy and Glacial-Marine Sediments of the Amerasian Basin, Central Arctic Ocean.
Abstract : Thirteen correlatable lithostratigraphic units are recognized in cores recovered from the central Artic Ocean. The stratigraphic units range in age from late Miocene to Holocene and can beExpand
Recent benthonic foraminiferal biofacies in the Arctic Ocean
Analysis of Recent foraminiferal distribution patterns for the Amerasian Basin and the adjacent continental shelves indicate 3 major biofacies: the Trochammina nana biofacies (17-350 m), theExpand
Late Pleistocene paleo-oceanography of the Norwegian-Greenland Sea: Benthic foraminiferal evidence
Fluctuations in benthic foraminiferal faunas over the last 130,000 yr in four piston cores from the Norwegian Sea are correlated with the standard worldwide oxygen-isotope stratigraphy. One species,Expand
Rates of sedimentation in the Arctic ocean
Abstract The sedimentation rate in the Arctic deep-sea over the last 150,000 years has undergone no significant changes. Based on both radiocarbon and uranium series isotope analyses, the depositionExpand
Deep water formation in the North Atlantic Ocean during the last ice age
Oxygen-18 records of benthic foraminifera from northeastern Atlantic and Southern Ocean cores are significantly different. This difference indicates that the deep water in the northeastern AtlanticExpand
Environmental distribution of Recent benthic foraminifera on the northeast United States continental slope
Several bathymetrically consistent Recent benthic foraminiferal biofacies have been recognized from the continental slope south-east of Cape Cod. Faunal assemblages are dominated by Globobulimina /Expand
Pleistocene calcite lysocline and paleocurrents of the central Arctic Ocean and their paleoclimatic significance
Most previous references to the depth of the Arctic Ocean calcite lysocline have been based on comparison with the known North Atlantic carbonate compensation depth. Foraminifera from cores taken atExpand
Distribution and ecology of benthic foraminifera in the Norwegian-Greenland Sea
Factor analysis of the benthic foraminifera from 36 trigger-weight core tops from the Norwegian-Greenland Sea reveals four overlapping biofacies: (1) from 600 m to 1200 m water depth dominated byExpand