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

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).本数据集包含2007年极星号（RV Polarstern）ARK/II/Ia科考航次中，于挪威海（67°N，9°E，水深340米）采集的深海珊瑚标本眼状杯形珊瑚（Madrepora oculata）的d11B与痕量元素测试结果。该珊瑚标本的生长周期覆盖1968至2007年，即近四十年，其地球化学分析结果凸显出海水pH下降幅度达一个数量级，与当前已知的海洋酸化速率高度吻合。此次pH记录显著受海洋动力学（北大西洋涛动，North Atlantic Oscillation, NAO）与海洋生产力的年代际变化影响。pHT计算参数参照洪尼施等（Hönisch et al., 2007）的研究设定：a=5；a=0.9804，d11B为39.5‰，采用Li/Mg测温法，盐度为35.1，pKB值取自迪克森（Dickson, 1990）。