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Large Aggregate Flux and Fate at the Seafloor: Diagenesis During the Rebound Process

  • I. D. Walsh
Part of the NATO ASI Series book series (ASIC, volume 360)

Abstract

Near-bottom sediment traps have been found to record higher fluxes of biogenic material than do traps in the mid-water column. The resuspension of biogenic-rich particles prior to their incorporation into the sediment, a process termed “rebound,” was inferred to be the cause (Walsh et aI., 1988a). Recent work with camera systems that quantitatively image aggregate (particles with diameters ≥0.5 mm) concentrations in the water column have established the presence of the benthic aggregate nepheloid layers implied by the rebound model (Gardner and Walsh, 1990; Walsh, 1990). The diagenetic effect of the rebound process is to increase the residence time of primary flux material above the sediment water interface. If the residence time of aggregates above the sediment water interface is 30 days, the diagenetic loss of the major biogenic components, assuming first-order decay at mid-water column rates, is approximately 20 to 60% of the organic carbon flux, 15 to 30% of the calcium carbonate flux and 10 to 40% of the biogenic opal flux.

Keywords

Particulate Organic Carbon Sediment Trap Sediment Water Interface Benthic Flux Particulate Organic Carbon Flux 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Alldredge, A.L. and C. Gotschalk (1988) In situ settling behavior of marine snow. Limnology and Oceanography, 33, 339–351.CrossRefGoogle Scholar
  2. Berelson, W.M., D.E. Hammond, and G.A. Cutter (1990) In situ measurements of calcium carbonate dissolution rates in deep-sea sediments. Geochimica et Cosmochimica Acta, 54, 3013–3020.CrossRefGoogle Scholar
  3. Berelson, W.M., D.E. Hammond, D. O’Neill, X-M. Xu, C. Chin and J. Zukin (1990) Benthic fluxes and pore water studies from sediments of the central equatorial north Pacific: Nutrient diagenesis. Geochimica et Cosmochimica Acta, 54, 3001–3012.CrossRefGoogle Scholar
  4. Berger, W.H. (1977) Biogenous deep sea sediments: Production, preservation, and interpretation. In: Chemical Oceanography, v. 5, J.P. Riley and R Chester, editors, Academic Press, London, p.265–388.Google Scholar
  5. Billet, D.S.M., R.S. Lampin, A.L. Rice, and R.F.C. Mantoura (1983) Seasonal sedimentation of phytoplankton to the deep-sea benthos. Nature, 302, 520–522.Google Scholar
  6. Dymond, J. and R. Collier, 1988. Biogenic particle fluxes in the equatorial Pacific: evidence for both high and low productivity during the 1982–1983 El Niño. Global Biogeochem. Cycles, 2: 129–137.CrossRefGoogle Scholar
  7. Emerson, S., K. Fischer, C. Reimers, and D. Heggies (1985) Organic carbon dynamics and preservation in deep-sea sediments. Deep-Sea Research, 32, 1–21.CrossRefGoogle Scholar
  8. Fischer, K., J. Dymond, M. Lyle, A. Soutar and S. Rau (1986) The benthic cycle of copper: Evidence from sediment trap experiments in the eastern tropical North Pacific Ocean. Geochimica et Cosmochimica Acta, 50, 1535–1543.CrossRefGoogle Scholar
  9. Gardner, W.D. and I.D. Walsh (1990) Distribution of macroaggregates and fine-grained particles across a continental margin and their potential role in fluxes. Deep-Sea Research, 37, 401–411.CrossRefGoogle Scholar
  10. Gardner, W.D., J.B. Southard and C.D. Hollister (1985) Sedimentation and resuspension in the Northwest Atlantic. Marine Geology, 65(3/4), 199–242.CrossRefGoogle Scholar
  11. Honjo, S., K.W. Doherty, Y.C. Agrawal, and V.L. Asper (1984) Direct optical assessment of large amorphous aggregates (marine snow) in the deep ocean. Deep-Sea Research, 31: 67–76.CrossRefGoogle Scholar
  12. Honjo, S. and J. Erez (1978) Dissolution rates of calcium carbonate in the deep-ocean: an in-situ experiment in the North Atlantic ocean. Earth and Planetary Science Letters, 40, 287–300.CrossRefGoogle Scholar
  13. Hurd, D.C. (1972) Factors affecting solution rate of biogenic opal in seawater. Earth and Planetary Science Letters, 15, 411–417.CrossRefGoogle Scholar
  14. Lampitt, R.S. (1985) Evidence for the seasonal deposition of detritus to the deep-sea floor and its subsequent resuspension. Deep-Sea Research, 22(8A), 885–897.CrossRefGoogle Scholar
  15. Lochte, K. and C. M. Turley (1988) Bacteria and cyanobacteria associated with phytodetritus in the deep sea. Nature, 333, 6168, 67-69.CrossRefGoogle Scholar
  16. Peterson M.N.A. (1966) Calcite: rates of dissolution in a vertical profile in the central Pacific. Science, 154, 1542–1544.CrossRefGoogle Scholar
  17. Schink, D.R and N.L. Guinasso Jr. (1977) Modelling the influence of bioturbation and other processes on calcium carbonate dissolution at the sca floor. In: The fate of fossil fuel CO2 in the oceans, N.R Andersen and A. Malahoff, editors, Plenum Press, New York, pp. 375–399.Google Scholar
  18. Schink, D.R and N.L. Guinasso Jr. (1978) Redistribution of dissolved and adsorbed materials in abyssal marine sediments undergoing biological stirring. American Journal of Science, 278, 687–702.CrossRefGoogle Scholar
  19. Suess, E. (1980) Particulate organic carbon flux in the oceans-surface productivity and oxygen utilization. Nature, 288, 260–263.CrossRefGoogle Scholar
  20. Thiel, H., O. Pfannkuche, G. Schriever, K. Lochte, A.J. Gooday, C.h. Hemleben, R.F.G. Mantoura, C.M. Turley, J.W. Patching and F. Riemann (1988/1989) Phytodetritus on the deep-sea floor in a central oceanic region of the Northeast Atlantic. Biological Oceanography, 6, 203–239.Google Scholar
  21. Turley, C. M., and K. Lochte (1990) Microbial response to the input of fresh detritus to the deepsea bed. Palaeogeography, Palaeoclimatology, Palaeoecology (Global and Planetary Change Section), 89, 3–23.CrossRefGoogle Scholar
  22. Walsh, I.D. (1990) Project CATSTIX: Camera, Transmissometer, and Sediment Trap Integration Experiment. Ph.D. thesis. Texas A&M University, 96 pp.Google Scholar
  23. Walsh, I., J. Dymond, and R. Collier (1988b) Rates of recycling of biogenic components of settling particles derived from sediment trap experiments. Deep-Sea Research, 35, 43–58.CrossRefGoogle Scholar
  24. Walsh, I., K. Fischer, D. Murray, and J. Dymond (1988a) Evidence for resuspension of rebound particles from near-bottom sediment traps. Deep-Sea Research, 35, 59–70.CrossRefGoogle Scholar
  25. Westrich, J.T. and R.A. Berner (1984) The role of sedimentary organic matter in bacterial sulfate reduction: the G model tested. Limnology and Oceanography, 29(2), 236–249.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1992

Authors and Affiliations

  • I. D. Walsh
    • 1
  1. 1.Department of OceanographyTexas A&M UniversityCollege StationUSA

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