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

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 o...

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Bibliographic Details
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
Description
Summary: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 ...

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