A high-resolution record from IODP Site 323-U1440 ...

• Main Authors: Schlung, Shilo A, Ravelo, Ana Christina, Aiello, Ivano W, Andreasen, Dyke, Cook, Mea S, Drake, Michelle K, Dyez, Kelsey A, Guilderson, Thomas P, LaRiviere, Jonathan P, Stroynowski, Zuzanna N, Takahashi, Kozo
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2013
• Subjects: Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Bering Sea; Pacific; Dansgaard-Oeschger events
• Online Access: https://dx.doi.org/10.1594/pangaea.824452; https://doi.pangaea.de/10.1594/PANGAEA.824452

Millennial-scale climate events in the North Pacific are thought to be related to changes in the circulation of North Pacific Intermediate Water, which may have formed in the Bering Sea in the past. To advance our understanding of the mechanisms that underlie millennial-scale events, Bering Sea sediment cores from the Integrated Ocean Drilling Program site U1340 were used to construct high-resolution, multiproxy climate records of the last 90,000 years. Sediment density records show millennial-scale events resembling Dansgaard-Oeschger events, several of which are laminated. Interstadials were characterized by 3–5 °C warming, increased productivity driven by upwelling, and reduced benthic oxygenation. Bering Sea intermediate water also changed over longer timescales; our records show the presence of intermediate water with lower salinity and higher oxygen content than modern beginning around 60 ka and persisting until the beginning of the deglaciation. The Bølling-Allerød was characterized by high ... : Supplement to: Schlung, Shilo A; Ravelo, Ana Christina; Aiello, Ivano W; Andreasen, Dyke; Cook, Mea S; Drake, Michelle K; Dyez, Kelsey A; Guilderson, Thomas P; LaRiviere, Jonathan P; Stroynowski, Zuzanna N; Takahashi, Kozo (2013): Millennial-scale climate change and intermediate water circulation in the Bering Sea from 90 ka: A high-resolution record from IODP Site U1340. Paleoceanography, 28(1), 54-67 ...