Figure 2. Barium excess of sediment core PS1506-1
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Over the last decade many regional palaeoceanographic studies have found evidence for enhanced primary productivity during glacial episodes, particularly in the equatorial...
近十年来，诸多区域古海洋学研究均已发现冰期事件期间初级生产力增强的相关证据，尤其在赤道……
