Hydrothermal signatures in the southern Okinawa Trough detected by the sequential extraction of settling particles

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• 作者：Hsu ; Shih-Chieh ; Lin ; Fei-Jan ; Jeng ; Woei-Lih ; Chung ; Yu-chia ; Shaw ; Li-Min
• 关键词：Six-stage sequential extraction ; Phase association ; Hydrothermal plume ; Mn anomaly ; The southern Okinawa Trough
• 刊名：Marine Chemistry
• 出版年：2003
• 期刊代码：50_03044203
• 类别：env
• 出版时间：December, 2003
• 卷：84
• 期：1-2
• 页码：49-66
• 文件大小：1.93 M

摘要

Sediment trap samples collected over 6 months at two depths within the southern Okinawa Trough (SOT) have been analyzed for phase associations of Al, Fe, Mn and Pb by six-stage sequential extraction (SSSE). The deeper samples are characterized by the presence of hydrothermal constituents (such as Mn and likely Fe and Pb), while shallower samples are representative of background-settling particles originating from laterally transported sediments. These results suggest that the extraction scheme is appropriate for detecting particles affected by hydrothermal emanations.