Article | Published:

Warm saline bottom water in the ancient ocean

Nature volume 296, pages 620623 (15 April 1982) | Download Citation

Subjects

Abstract

Considerable isotopic evidence indicates that oceanic bottom water was much warmer in the geological past. A simple convection model driven by multiple turbulent buoyant plumes and observations of present deep water formation have led to the development of a theory for the formation of warm saline bottom water. It is suggested that changes in the size and configuration of marginal seas in net evaporation zones due to lithospheric plate motions and eustatic sea level change caused these seas to become sources of warm saline bottom water. Evidence from the palaeotemperature record and palaeogeography during the late Cretaceous is used to reinforce the hypothesis. Climatic and chemical consequences of the formation of warm saline bottom water are discussed.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    A. Rev. Earth planet. Sci. 5, 319 (1977).

  2. 2.

    thesis, Univ. Miami (1979).

  3. 3.

    J. Fluid Mech. (submitted).

  4. 4.

    Deep-Sea Res. 12, 9 (1965).

  5. 5.

    Evolution of Physical Oceanography (eds Warren, B. A. & Wunsch, C.) (MIT Press, Cambridge, 1981).

  6. 6.

    & J. Fluid Mech. 37, 51 (1969).

  7. 7.

    Deep-Sea Res. 22, 853 (1975).

  8. 8.

    & Geology, 8, 501 (1980).

  9. 9.

    & Nature 246, 18 (1973).

  10. 10.

    et al. Earth planet. Sci. Lett. 54, 1 (1981).

  11. 11.

    , , & Eclogae Geol. Helv. 74, 443 (1981).

  12. 12.

    et al. Pre-Pleistocene Climate (National Research Council spec. Publ., in the press).

  13. 13.

    & J. atmos. Sci. 37, 99 (1980).

  14. 14.

    & J. geophys. Res. 85, C4 (1980).

  15. 15.

    Principles of Isotope Geochemistry, 334 (Wiley, New York, 1977).

  16. 16.

    & Nature 276, 461 (1978).

  17. 17.

    & Nature 263, 22 (1976).

Download references

Author information

Affiliations

  1. Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida 33149, USA

    • G. W. Brass
    •  & J. R. Southam
  2. Cooperative Institute for Marine and Atmospheric Studies, University of Miami, Miami, Florida 33149, USA

    • W. H. Peterson

Authors

  1. Search for G. W. Brass in:

  2. Search for J. R. Southam in:

  3. Search for W. H. Peterson in:

About this article

Publication history

Received

Accepted

Published

DOI

https://doi.org/10.1038/296620a0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.