Ostracode fauna of sediment core GIK23414-9 in the northeast Atlantic ...

• Main Authors: Didié, Claudia, Bauch, Henning A
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2000
• Subjects: Kasten corer; M17/2; Meteor 1986; Helmholtz Centre for Ocean Research Kiel GEOMAR; Arctic Ocean; North Atlantic; Northeast Atlantic; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.714866; https://doi.pangaea.de/10.1594/PANGAEA.714866

Sediment core M23414 from the Rockall Plateau (North Atlantic) covering the last two climatic cycles, marine isotope stages (MIS) 7 to 1, was investigated for glacial-interglacial variations in the deep-sea benthic ostracode fauna. A highly diversified ostracode fauna including 98 species was found. Two climate-related assemblages were identified, associated with interglacial and peak glacial periods, respectively. The 'interglacial' group occurs during the end of MIS 7, 5 and 1 and is composed of the genera Henryhowella, Pelecocythere, Echinocythereis, Cytherella, Bradleya, Aversovalva and Eucytherura. The 'glacial' group consists of the genera Acetabulastoma (which is known as 'sea ice indicator' in the modern Arctic Ocean), Polycope, Bythoceratina, ?Rhombobythere, and some species possibly belonging to the genus Pseudocythere and is found during MIS 6, 4 and 2. These longer-term variations within the ostracode fauna seem related to the particular glacial and interglacial climate conditions that affected ... : Supplement to: Didié, Claudia; Bauch, Henning A (2000): Species composition and glacial-interglacial variations in the ostracode fauna of the northeast Atlantic during the past 200,000 years. Marine Micropaleontology, 40(1-2), 105-129 ...