Boron isotopes, trace elements and pH calculation for Norwegian deep sea coral specimen Madrepora o. (1968-2007), 2012 ...

• Main Author: Douville, Eric
• Format: Dataset
• Language: English
• Published: PANGAEA 2012
• Subjects: Species; Sample ID; Coral polyp; Date; δ11B; Boron/Calcium ratio; Lithium/Calcium ratio; Magnesium/Calcium ratio; Uranium/Calcium ratio; Lithium/Magnesium ratio; Temperature, water; Temperature, standard deviation; pH; Reconstructed through Li/Mg ratio; European Project on Ocean Acidification EPOCA; Norwegian Sea; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.777712; https://doi.pangaea.de/10.1594/PANGAEA.777712

d11B and trace results obtained for a deep sea coral specimen Madrepora oculata collected from the Norwegian Sea (67°N, 9°E, 340 m) during the RV Polarstern ARK/II/Ia cruise (2007). Such coral specimen grew during the last four decades (1968-2007) and geochemical results highligh a seawater pH decrease with an order of magnitude in good agreement with an ocean acidification rate today known. This pH record is strongly impacted by inter-decadal change of ocean dynamic (NAO) and productivity. pHT calculation parameters (Hönisch et al., 2007): a=5; a=0.9804, d11B=39.5 PER MIL, Li/Mg temperature, salinity=35.1, pKB from Dickson (1990). ...