(Table 1) Age determination of sediment cores EW9302-JPC1 and EW9302-JPC2 ...

• Main Authors: Rasmussen, Tine Lander, Oppo, Delia W, Thomsen, Erik, Lehman, Scott J
• Format: Dataset
• Language: English
• Published: PANGAEA 2003
• Subjects: Event label; DEPTH, sediment/rock; Age, dated; Age, dated standard error; Laboratory; Jumbo Piston Core; Age, 14C milieu/reservoir corrected -400 yr; Labrador Sea; Newfoundland; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.842156; https://doi.pangaea.de/10.1594/PANGAEA.842156

Results from two deep sea cores from northeast of Newfoundland at 1251 and 2527 m water depth, respectively, indicate that during the time period from 160,000 to 10,000 years BP, ice rafting events in the Labrador Sea were accompanied by rapid variations in deep and surface water circulation. Twelve ice-rafting events occurred, each coinciding with high concentrations of detrital carbonate and oxygen isotopic depletion of both surface and bottom waters. Eleven of these can be correlated with the North Atlantic Heinrich events H1–H11. The remaining very conspicuous ice-rafting event took place early in MIS substage 5e, at a time when the planktic faunal assemblage suggests marked warming of the sea surface. In the shallower core, benthic d13C values rise from a minimum during the deglaciation to peak substage 5e values following the last ice-rafting event, indicating that the ventilation of intermediate depths was renewed after the deglaciation was complete and continued throughout substage 5e. The benthic ... : Supplement to: Rasmussen, Tine Lander; Oppo, Delia W; Thomsen, Erik; Lehman, Scott J (2003): Deep sea records from the southeast Labrador Sea: ocean circulation changes and ice-rafting events during the last 160,000 years. Paleoceanography, 18(1), 1018 ...