Ostracoda in surface sediments of the Arctic Ocean ...

• Main Authors: Cronin, Thomas M, Holtz, Thomas R, Whatley, Robin C
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 1994
• Subjects: Giant box corer; Kasten corer; ARK-VIII/3; Polarstern; Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo; Quaternary Environment of the Eurasian North QUEEN; Arctic Ocean; canada basin; Greenland; Greenland Sea; Lomonosov Ridge; Yermak plateau
• Online Access: https://dx.doi.org/10.1594/pangaea.728604; https://doi.pangaea.de/10.1594/PANGAEA.728604

Ostracodes were studied from deep Arctic Ocean cores obtained during the Arctic 91 expedition of the Polarstern to the Nansen, Amundsen and Makarov Basins, the Lomonosov Ridge, Morris Jesup Rise and Yermak Plateau, in order to investigate their distribution in Arctic Ocean deep water (AODW) and apply these data to paleoceanographic reconstruction of bottom water masses during the Quaternary. Analyses of coretop assemblages from Arctic 91 boxcores indicate the following: ostracodes are common at all depths between 1000 and 4500 m, and species distribution is strongly influenced by water mass characteristics and bathymetry; quantitative analyses comparing Eurasian and Canada Basin assemblages indicate that distinct assemblages inhabit regions east and west of the Lomonosov Ridge, a barrier especially important to species living in lower AODW; deep Eurasian Basin assemblages are more similar to those living in Greenland Sea deep water (GSDW) than those in Canada Basin deep water; two upper AODW assemblages were ... : Supplement to: Cronin, Thomas M; Holtz, Thomas R; Whatley, Robin C (1994): Quaternary paleoceanography of the deep Arctic Ocean based on quantitative analysis of Ostracoda. Marine Geology, 119(3-4), 305-332 ...