Ice rafted debris, planktic foraminifera and reconstructed sea surface temperatures from site GIK23414 ...

• Main Authors: Kandiano, Evgenia S, Bauch, Henning A
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2007
• Subjects: Gravity corer Kiel type; M17/2; Meteor 1986; Northeast Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.675504; https://doi.pangaea.de/10.1594/PANGAEA.675504

Planktic foraminiferal census data, faunal sea surface temperatures (SSTs) and oxygen isotopic and lithic records from a site in the northeast Atlantic were analyzed to study the interglacial dynamics of Marine Isotope Stage (MIS) 11, a period thought to closely resemble the Holocene on the basis of orbital forcing. Interglacial conditions during MIS 11 persisted for approximately 26 ka. After the main deglacial meltwater processes ceased, a 10- to 12-ka-long transitional period marked by significant water mass circulation changes occurred before surface waters finally reached their thermal maximum. This SST peak occurred between 400 and 397 ka, inferred from the abundance of the most thermophilic foraminiferal species and was coincident with lowest sea level according to benthic isotope values. The ensuing stepwise SST decrease characterizes the overall climate deterioration preceding the increase in global ice volume by ab. 3 ka. This cooling trend was followed by a more pronounced cold event that began at ... : Supplement to: Kandiano, Evgenia S; Bauch, Henning A (2007): Phase relationship and surface water mass change in the Northeast Atlantic during Marine Isotope Stage 11 (MIS 11). Quaternary Research, 68(3), 445-455 ...