| 2600年以来台湾大鬼湖中的金属通量 |
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| 引用本文： | 陈镇东,万政康.2600年以来台湾大鬼湖中的金属通量[J].湖泊科学,1998,10(S1):315-329. |
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| 作者姓名： | 陈镇东 万政康 |
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| 作者单位： | Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China,Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China |
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| 基金项目： | The authors wish to thank the Environmental Protection Administration (EPA-86-FA44-09-26 and 47) and the National Science Council (NSC85-2611-M-110-003GP) for supporting this research. |
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| 摘 要： | Sediment cores were collected from the remote subalpine Great Ghost Lake in southern Taiwan. Because the lake is anoxic the sediments are well preserved, distinctive past variations can be dated accurately. The vertical distributions of total and acid-leached metal concentrations for aluminum, arsenic, cadmium, cerium, chromium, cesium, copper, iron, magnesium, manganese, nickel, lead, rubidium, strontium, vanadium and zinc are measured and the fluxes determined. The dates of higher fluxes in the past 2600 years seem to correlate with dry spells. Further, trace metal fluxes show a large increase but Pb-206/Pb-207 ratios show a large decrease since 1950, suggesting a significant anthropogenic input.
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| 关 键 词： | trace metals flux Great Ghost Lake Taiwan |
| 收稿时间： | 1997/2/25 0:00:00 |
| 修稿时间： | 1998/3/27 0:00:00 |
Flux of Metals in Great Ghost Lake in Taiwan in the Past 2600 Years |
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| Chen-Tung Arthur Chen and Jen-Kang Wann.Flux of Metals in Great Ghost Lake in Taiwan in the Past 2600 Years[J].Journal of Lake Science,1998,10(S1):315-329. |
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| Authors: | Chen-Tung Arthur Chen and Jen-Kang Wann |
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| Institution: | Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China and Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China |
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| Abstract: | Sediment cores were collected from the remote subalpine Great Ghost Lake in southern Taiwan. Because the lake is anoxic the sediments are well preserved, distinctive past variations can be dated accurately. The vertical distributions of total and acid-leached metal concentrations for aluminum, arsenic, cadmium, cerium, chromium, cesium, copper, iron, magnesium, manganese, nickel, lead, rubidium, strontium, vanadium and zinc are measured and the fluxes determined. The dates of higher fluxes in the past 2600 years seem to correlate with dry spells. Further, trace metal fluxes show a large increase but Pb-206/Pb-207 ratios show a large decrease since 1950, suggesting a significant anthropogenic input. |
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| Keywords: | trace metals flux Great Ghost Lake Taiwan |
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