(Table 1) Depth and ages of the chronolostratigraphical boundaries from IODP Sites 303-U1305, U1302 and U1303 ...

• Main Authors: Hillaire-Marcel, Claude, de Vernal, Anne, McKay, Jennifer L
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Event label; DEPTH, sediment/rock; Isotopic event; Datum level; Age model; Composite Core; Age model according to Lisiecki & Raymo 2005 [LR04]; Age model, paleomagnetic; Exp303; Joides Resolution; Integrated Ocean Drilling Program / International Ocean Discovery Program IODP; Denmark Strait; Greenland; Labrador Sea; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.767358; https://doi.pangaea.de/10.1594/PANGAEA.767358

Cores raised during IODP Expedition 303 off southern Greenland (Eirik Ridge site 1305) and off the Labrador Coast (Orphan Knoll site 1302/1303) were analyzed to establish an isotope stratigraphy, respectively for the "inner" and "outer" basins of the Labrador Sea (LS). These isotopic data also provide information on the Atlantic Meridional Overturning Circulation (AMOC), notably with regard to the intensity of the Western Boundary Under Current (WBUC), which is tightly controlled by the production of Denmark Strait Overflow Water (DSOW), and the production of Labrador Sea Water (LSW) in the inner basin through winter cooling and convection. The upper 184 m of sediment at Eirik Ridge spans marine isotope stages (MIS) 32 to 1. At this site, two distinct regimes are observed: prior to MIS 20, the isotopic record resembles that of the open North Atlantic records of the interval, whereas a more site-specific pattern is observed afterwards. This later pattern was characterized by i) high DSOW production rates and ... : Sediment depth is given in mcd. The authors compilated Site 303-U1303 and Site 303-U1302, this composite core is given here as Site 303-U1302. ...