YUAN Chun-wei, ZENG Zhi-gang, YIN Xue-bo, WANG Xiao-yuan, YU Shao-xiong. SEDIMENT GEOCHEMISTRY FROM 13°N EAST PACIFIC RISE HYDROTHERMAL FIELD[J]. Marine Geology & Quaternary Geology, 2007, 27(4): 45-53.
Citation: YUAN Chun-wei, ZENG Zhi-gang, YIN Xue-bo, WANG Xiao-yuan, YU Shao-xiong. SEDIMENT GEOCHEMISTRY FROM 13°N EAST PACIFIC RISE HYDROTHERMAL FIELD[J]. Marine Geology & Quaternary Geology, 2007, 27(4): 45-53.
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SEDIMENT GEOCHEMISTRY FROM 13°N EAST PACIFIC RISE HYDROTHERMAL FIELD

  • 1 Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;

  • 2 Graduate School of Chinese Academy of Sciences, Beijng 100039, China

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  • Received Date: March 05, 2007
  • Revised Date: August 08, 2007
    Graphical Abstract
    • Abstract
  • Element analyses have been carried out on the sediment cores from East Pacific Rise 13°N. Sediments are rich in Fe and Mn, with Fe contents from 8.5% to 13.8% in E271 and 6% to 13% in E272, Mn contents from 1.7% to 3.17% and from 6% to 13% respectively, which indicates important sedimentation influences of hydrothermal plume at a distance of 25~45 km west of EPR 13°N hydrothermal field. Carbonates also occupy an important component, with E271 from 5.9% to 27.57% and E272 from 6.67% to 38.20%. A few foraminifer fossils were found in the sediment cores. These sediments are rich in Cu, Pb and Zn which are fallout from hydrothermal plume with iron oxides. Cu/Fe, Pb/Fe and Zn/Fe ratios are lower than those in vent particles. Pb performs short transport distance or only minor Pb transports with iron oxides particles. Sediments are rich in Li, Mo and Ni as well. Further, plume supplies V to underlying sediment by scavenging from seawater. Ti and Al have a good correlation, with Ti/Al ratio nearly at 0.05. U content of the cores is similar to that of the pelagic sediments.
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    • References (22)
  • [1]
    Elderfiel H,Schultz A.Mid-ocean ridge hydrothermal fluxes and the chemical composition of ocean[J].Annual Review of Earth and Planetary Sciences,1996,24:191-224.
    [2]
    Lupton J E,Delaney J R, et al.Entrainment and vertical transport of deep ocean water by buoyant hydrothermal plumes[J].Nature,1985,316:621-623.
    [3]
    Mottl M J,McConachy T F.Chemical processes in buoyant hydrothermal plumes on the East Pacific Rise near 21°N[J].Geochimica et Cosmochimica Acta,1990,54:1911-1927.
    [4]
    Bostrom K,Arquharson B F, et al.Submarine hot springs as a source of active ridge sediments[J].Chemical Geology,1972,10:189-203.
    [5]
    Hekinian R,Francheteau J, et al.Intense hydrothermal activity at the rise axis of the East Pacific Rise near13°N:submersible witnesses the growth of sulfide chimney[J].Marine Geophysical Research,1983,6(1):1-14.
    [6]
    Klitgord K D, Mammerickx J.Northern East Pacific Rise:magnetic anomaly and bathymetric framework[J].Journal of Geophysical Research,1982,87:6725-6750.
    [7]
    Michard G,Michard A, et al.Chemistry of solutions from the 13°N East Pacific Rise hydrothermal site[J].Earth and Planetary Science Letters,1984,67:297-307.
    [8]
    Khripounoff A,Alberic P.Settling of particles in a hydrothermal vent field (East Pacific Rise 13°N) measured with sediment traps[J].Deep-Sea Research I,1991,38:729-744.
    [9]
    German C R,Colley S, et al.Hydrothermal plume-particle fluxes at 13°N on the East Pacific Rise[J].Deep-Sea Research I,2002,49:1921-1940.
    [10]
    王小如.电感耦合等离子之谱应用实例[M],北京:化学工业出版社,2005.196-203.[WANG Xiao-ru.Application of Induction Coupled Plasma Emission Spectrometry[M].Beijing:Chemica(Industry Press,2005:196

    -203.]
    [11]
    Goldberg E D and Arrhenius G O S.Chemistry of Pacific pelagic sediments[J].Geochimica et Cosmochimica Acta,1958,13:153-212.
    [12]
    Kyte F T,Leinen M, et al.Cenozoic sedimentation history of the central North Pacific:Inference from the elemental geochemistry of core LL44-GPC3[J].Geochimica et Cosmochimica Acta,1993,57:1719-1740.
    [13]
    Bostrom K,Peterson M N A, et al.Aluminum-poor ferromanganoan sediments on active oceanic ridges[J].Journal of Geophysical Research,1969,74:3261-3270.
    [14]
    Feely R A,Lewison M.Composition and dissolution of black smoker particulates from active vents on the Juan de Fuca Ridge[J].Journal of Geophysical Research,1987,92:11347-11363.
    [15]
    Humphris S E, Thompson G.Trace element mobility during hydrothermal alteration of oceanic basalts[J].Geochimica et Cosmochimica Acta,1978,42:127-136.
    [16]
    Krauskopf K B.Factors controlling the concentrations of thirteen rare metals in sea-water[J].Geochimica et Cosmochimica Acta,1956,9:1-32.
    [17]
    Trefry J H, Metz S.Role of hydrothermal precipitates in the geochemical cycling of vanadium[J].Nature,1989,342:531-533.
    [18]
    Thompson G,Humphris S E, et al.Active vents and massive sulfides at 26°N (TAG) and 23°N (Snakepit) on the Mid Atlantic Ridge[J].Canadian Mineral,1988,26:697-711.
    [19]
    牟保磊.元素地球化学[M].北京:北京大学出版社,1999:156-162.[MU Bao-lei.Element Geochemistry[M].Beijing:Peking University Press,1999:156

    -162.]
    [20]
    Seyfried W E, Bischoff J L.Experimental seawater-basalt interaction at 300,500bar; chemical exchange,secondary mineral formation and implications for the transport of heavy metals[J].Geochimica et Cosmochimica Acta,1981,45:135-147.
    [21]
    Moorby S A.The geochemistry of transitional sediments recovered from the Galapagos Hydrothermal Mounds Field during DSDP Leg70-implication for mounds formation[J].Earth and Planetary Science Letters,1983,62:367-376.
    [22]
    Dymond J, Veeh H H.Metal accumulation rates in the Southeast Pacific and the origin of metalliferous sediments[J].Earth and Planetary Science Letters,1975,28:13-22.
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