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Trace element and boron isotopic composition of Drake Passage deep-sea corals
GB/NERC/BAS/PDC/01214

Summary

Abstract:
Changes of circulation pattern in the Southern Ocean have been invoked to explain a significant portion of the increase in the atmospheric carbon dioxide during the last deglaciation. However, the accurate timing and thus underlying mechanisms of these changes are still controversial, requiring knowledge of different water masses movements with absolute age constraints. Aragonitic scleractinian deep-sea corals, recovered from a broad range of depths in the Drake Passage, provide a unique opportunity to investigate Southern Ocean ventilation with precise U-Th age control. This data submission includes trace element and delta11B for Drake Passage corals.

Funding was provided by the NERC standard grant NE/N003861/1.

Keywords:
Drake Passage, Southern Ocean, boron isotopes, deep-sea coral, trace element

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