Glacial cold-water coral: ages, isotope concentrations and ratios ...

• Main Authors: Wienberg, Claudia, Frank, Norbert, Mertens, Kenneth Neil, Stuut, Jan-Berend W, Marchant, Margarita, Fietzke, Jan, Mienis, Furu, Hebbeln, Dierk
• Format: Dataset
• Language: English
• Published: PANGAEA 2011
• Subjects: Event label; Comment of event; Latitude of event; Longitude of event; DEPTH, sediment/rock; Coral; Age, relative; Age, standard deviation; Uranium-238; Uranium-238, standard deviation; Thorium-232; Thorium-232, standard deviation; δ234 Uranium; δ234 Uranium, standard deviation; Gravity corer; Piston corer; SO175; 64PE229; MSM01/3; Sonne; Pelagia; Maria S. Merian; Center for Marine Environmental Sciences MARUM; Hotspot Ecosystem Research and Mans Impact On European Seas HERMIONE; Lophelia pertusa
• Online Access: https://dx.doi.org/10.1594/pangaea.770171; https://doi.pangaea.de/10.1594/PANGAEA.770171

A set of 40 Uranium-series datings obtained on the reef-forming scleractinian cold-water corals Lophelia pertusa and Madrepora oculata revealed that during the past 400 kyr their occurrence in the Gulf of Cádiz (GoC) was almost exclusively restricted to glacial periods. This result strengthens the outcomes of former studies that coral growth in the temperate NE Atlantic encompassing the French, Iberian and Moroccan margins dominated during glacial periods, whereas in the higher latitudes (Irish and Norwegian margins) extended coral growth prevailed during interglacial periods. Thus it appears that the biogeographical limits for sustained cold-water coral growth along the NE Atlantic margin are strongly related to climate change. By focussing on the last glacial-interglacial cycle, this study shows that palaeo-productivity was increased during the last glacial. This was likely driven by the fertilisation effect of an increased input of aeolian dust and locally intensified upwelling. After the Younger Dryas ... : Supplement to: Wienberg, Claudia; Frank, Norbert; Mertens, Kenneth Neil; Stuut, Jan-Berend W; Marchant, Margarita; Fietzke, Jan; Mienis, Furu; Hebbeln, Dierk (2010): Glacial cold-water corals growth in the Gulf of Cádiz: Implications of increased palaeo-productivity. Earth and Planetary Science Letters, 298, 405-416 ...