Stable isotope record of planktonic foraminifera from sediment core MD96-2085 ...

• Main Authors: Chen, Min-Te, Chang, Yuan-Pin, Chang, Cheng-Chieh, Wang, Liping, Wang, Chung-Ho, Yu, Ein-Fen
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2002
• Subjects: Calypso Corer; MD105; Marion Dufresne 1995; International Marine Global Change Study IMAGES; Neogloboquadrina pachyderma; Planktonic foraminifera
• Online Access: https://dx.doi.org/10.1594/pangaea.736657; https://doi.pangaea.de/10.1594/PANGAEA.736657

A high-resolution (~4-5cm/kyr) giant piston core record (MD962085) retrieved during an IMAGES II-NAUSICAA cruise from the continental slope of the southeast Atlantic Ocean reveals striking variations in planktonic foraminifer faunal abundances and sea-surface temperatures (SST) during the past 600 000 yr. The location and high-quality sedimentary record of the core provide a good opportunity to assess the variability of the Benguela Current system and associated important features of the ocean-climate system in the southeast Atlantic. The planktonic foraminifer faunal abundances of the core are dominated by three assemblages: (1) Neogloboquadrina pachyderma (right coiling) + Neogloboquadrina dutertrei, (2) Globigerina bulloides, and (3) Globorotalia inflata. The assemblage of N. pachyderma (right coiling) + N. dutertrei shows distinctive abundance changes which are nearly in-phase with glacial-interglacial variations. The high abundances of this assemblage are associated with major glacial conditions, ... : Supplement to: Chen, Min-Te; Chang, Yuan-Pin; Chang, Cheng-Chieh; Wang, Li-Wen; Wang, Chung-Ho; Yu, Ein-Fen (2002): Late Quaternary sea-surface temperature variations in the southeast Atlantic: a planktic foraminifer faunal record of the past 600 000 yr (IMAGES II MD962085). Marine Geology, 180(1-4), 163-181 ...