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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.湖泊科学,1998,10(s1):315-329. DOI:10.18307/1998.sup35
Chen-Tung Arthur Chen,Jen-Kang Wann.Flux of Metals in Great Ghost Lake in Taiwan in the Past 2600 Years. J. Lake Sci.1998,10(s1):315-329. DOI:10.18307/1998.sup35
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2600年以来台湾大鬼湖中的金属通量
陈镇东, 万政康
Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China
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.
关键词:  trace metals  flux  Great Ghost Lake  Taiwan
DOI:10.18307/1998.sup35
分类号:
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.
Flux of Metals in Great Ghost Lake in Taiwan in the Past 2600 Years
Chen-Tung Arthur Chen, Jen-Kang Wann
Institute of Marine Geology and Chemistry, National Sun Yat-Sen University Kaohsiung 80424, Taiwan, China
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.
Key words:  trace metals  flux  Great Ghost Lake  Taiwan
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