Biomarker and XRD results for the last 3.4 Ma from IODP Site 306-U1313 ...

• Main Authors: Naafs, Bernhard David A, Hefter, Jens, Stein, Ruediger
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2013
• Subjects: Composite Core; Exp306; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Hudson; Hudson Strait; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.818094; https://doi.pangaea.de/10.1594/PANGAEA.818094

Various types of abrupt/millennial-scale climate variability such as Dansgaard/Oeschger and Heinrich Events characterized the last glacial period. Over the last decade, a number of studies demonstrated that such millennial-scale climate variability was not limited to the last glacial but inherent to Quaternary climate. Here we review the occurrence and origin of millennial ice-rafting events in the North Atlantic during the late Pliocene and Pleistocene (last 3.4 Ma) with a special focus on North Atlantic Hudson Strait (HS) Heinrich(-like) Events. Besides a clear biomarker signature, we show that Heinrich Layers 5, 4, 2, and 1 in marine sediment cores from across the North Atlantic all bear the organic geochemical fingerprint of the Hudson area. Using this framework and combining previously published results, detailed investigations into the organic and inorganic chemistry of ice-rafted debris (IRD) found across the North Atlantic demonstrate that prior to MIS 16 (~ 650 ka) IRD in the North Atlantic did not ... : Supplement to: Naafs, Bernhard David A; Hefter, Jens; Stein, Ruediger (2013): Millennial-scale ice rafting events and Hudson Strait Heinrich(-like) Events during the late Pliocene and Pleistocene: a review. Quaternary Science Reviews, 80, 1-28 ...