Sea surface temperature estimation for MIS 16 of IODP Site 306-U1313 ...

• Main Authors: Naafs, Bernhard David A, Hefter, Jens, Ferretti, Patrizia, Stein, Ruediger, Haug, Gerald H
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2011
• Subjects: Composite Core; Drilling/drill rig; Exp306; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Hudson Strait; Ice Sheet; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.758056; https://doi.pangaea.de/10.1594/PANGAEA.758056

Hudson Strait (HS) Heinrich Events, ice-rafting events in the North Atlantic originating from the Laurentide ice sheet (LIS), are among the most dramatic examples of millennial-scale climate variability and have a large influence on global climate. However, it is debated as to whether the occurrence of HS Heinrich Events in the (eastern) North Atlantic in the geological record depends on greater ice discharge, or simply from the longer survival of icebergs in cold waters. Using sediments from Integrated Ocean Drilling Program (IODP) Site U1313 in the North Atlantic spanning the period between 960 and 320 ka, we show that sea surface temperatures (SSTs) did not control the first occurrence of HS Heinrich(-like) Events in the sedimentary record. Using mineralogy and organic geochemistry to determine the characteristics of ice-rafting debris (IRD), we detect the first HS Heinrich(-like) Event in our record around 643 ka (Marine Isotope Stage (MIS) 16), which is similar as previously reported for Site U1308. ... : Supplement to: Naafs, Bernhard David A; Hefter, Jens; Ferretti, Patrizia; Stein, Ruediger; Haug, Gerald H (2011): Sea surface temperatures did not control the first occurrence of Hudson Strait Heinrich Events during MIS 16. Paleoceanography, 26, PA4201 ...