Advertisement

Marine Geophysical Researches

, Volume 19, Issue 1, pp 55–64 | Cite as

Bathymetry of the Reykjanes Ridge

  • J. A. Keeton
  • R. C. Searle
  • C. Peirce
  • B. Parsons
  • R. S. White
  • M. C. Sinha
  • B. J. Murton
  • L. M. Parson
Article

Abstract

We present a series of 1:200,000 scale maps of the bathymetry of the Reykjanes Ridge. The data are divided into four maps, extending 630 km along the ridge axis and between 30 and 100 km off-axis. This compilation of bathymetry data is extremely detailed, gridded at approximately 100 m resolution, and with almost no gaps. The Reykjanes Ridge is one of the best examples of a hotspot-dominated ridge, whose characteristics are influenced by its proximity to the Iceland plume. Many fundamental questions may be addressed at the Reykjanes Ridge, which is why the BRIDGE programme identified it as one of its four regional projects. These maps represent a BRIDGE contribution to the general scientific community.

Multibeam bathymetry Reykjanes Ridge Mid-Ocean Ridge 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Appelgate, B. and Shor, A. N., 1994, The Northern Mid-Atlantic and Reykjanes Ridge - Spreading Center Morphology between 55º 50' N and 63º 00' N, J. Geophys. Res. 99, 17935–17956.Google Scholar
  2. Brozena, J. M. and White, R. S., 1990, Ridge Jumps and Propagations in the South Atlantic Ocean, Nature 348, 149–152.Google Scholar
  3. Caress, D. W. and Chayes, D. N., 1993, Processing and Display of Multibeam Echosounder Data on the R/V Maurice Ewing, EOS Trans. AGU 74, 562.Google Scholar
  4. Caress, D. W. and Chayes, D. N., 1996, Improved Processing of Hydrosweep DS Multibeam Data on the R/V Maurice Ewing, Mar. Geophys. Res. 18, 631–650.Google Scholar
  5. Courtney, R. C. and White, R. S., 1986, Anomalous Heatflow and Geoid Across the Cape Verde Rise: Evidence for Dynamic Support from a Thermal Plume in the Mantle, Geophys. J. R. Astron. Soc. 87, 815–868.Google Scholar
  6. DeMets, C., Gordon, R.G., Argus, D. F. and Stein, S., 1989, Current Plate Motions, Geophys. J. Int. 101, 425–478.Google Scholar
  7. Hammerstad, E., Pø hner, F., Parthiot, F. and Bennett, J., 1991, Field Testing of a New Deep Water Multibeam Echo Sounder, in Proceedings Oceans '91, pp. 743–749.Google Scholar
  8. Keeton, J. A., Searle, R. C., Parsons, B. E., Owens, R. B., Mecklenburgh, R., White, R. S., Hepburn, C. and Robinson, C., 1994, Tectonic, Volcanic and Morphological Characteristics of the Reykjanes Ridge between 57º 30' and 62º 05' N, EOS Trans. AGU 75, 603.Google Scholar
  9. Leick, A., 1990, GPS Satellite Surveying, Wiley and Sons.Google Scholar
  10. Lin, J. and Phipps Morgan, J., 1992, The Spreading Rate Dependence of Three-Dimensional Mid-Ocean Ridge Gravity Structure, Geophys. Res. Lett. 19, 13–16.Google Scholar
  11. Murton, B. J. and Parson, L. M., 1993, Segmentation, Volcanism and Deformation of Oblique Spreading Centres - A Quantitative Study of the Reykjanes Ridge, Tectonophysics 222, 237–257.Google Scholar
  12. Parson, L. M., Murton, B. J., Searle, R. C., Booth, D., Evans, J., Field, P., Keeton, J., Laughton, A., McAllister, E., Millard, N., Redbourne, L., Rouse, I., Shor, A., Smith, D., Spencer, S., Summerhayes, C. and Walker, C., 1993, En Echelon Axial Volcanic Ridges at the Reykjanes Ridge: A Life Cycle of Volcanism and Tectonics, Earth Planet. Sci. Lett. 117, 73–87.Google Scholar
  13. Purdy, G. M., Sempere, J.-C., Schouten, H., DuBois, D. L. and Goldsmith, R., 1990, Bathymetry of the Mid-Atlantic Ridge, 24º - 31º N: A Map Series, Mar. Geophys. Res. 12, 247–252.Google Scholar
  14. Searle, R. C. and Laughton, A. S., 1981, Fine-Scale Sonar Study of Tectonics and Volcanism on the Reykjanes Ridge. Oceanol. Acta, Suppl. to Vol. 4, 5–13.Google Scholar
  15. Searle, R. C., Field, P. and Owens, R. B., 1994a, Segmentation and a Non-Transform Spreading Offset on the Reykjanes Ridge, J. Geophys. Res. 99, 24159–24172.Google Scholar
  16. Searle, R. C., Keeton, J. A., Parsons, B. E., Owens, R. B., Mecklenburgh, R., White, R. S., Hepburn, C. and Robinson, C., 1994b, A Detailed Sonar, Gravity and Magnetic Study of the Oblique-Spreading Reykjanes Ridge, 57º 30. N- 62º 05. N, EOS Trans. AGU 75, 589.Google Scholar
  17. Searle, R. C., Keeton, J. A., Parsons, B. E., Owens, R. B., Mecklenburgh, R., White, R. S., Hepburn, C. and Robinson, C., 1996, Morphology and Structure of the Reykjanes Ridge from Detailed Bathymetry, Gravity and Magnetic Observations, Earth Planet. Sci. Lett., in prep.Google Scholar
  18. Simrad, 1992, SIMRAD EM12 Hydrographic Echo Sounder, Product Description: Simrad Subsea A/S, Horten, Norway, #P2302E.Google Scholar
  19. Smallwood, J. R., White, R. S. and Minshull, T. A., 1995, Sea-Floor Spreading in the Presence of the Iceland Mantle Plume: The Structure of the Reykjanes Ridge at 61º 40' N, J. Geol. Soc. London 152, 1023–1029.Google Scholar
  20. Smith, W. H. F. and Wessel, P., 1990, Gridding with Continuous Curvature Splines in Tension, Geophysics 55, 293–305.Google Scholar
  21. Talwani, M., Windisch, C. C. and Langseth, M.G., 1971, Reykjanes Ridge Crest: A Detailed Geophysical Study, J. Geophys. Res. 76, 473–577.Google Scholar
  22. Vogt, P. R., 1971, Asthenosphere Motion Recorded by the Ocean Floor South of Iceland, Earth Planet. Sci. Lett. 13, 153–160.Google Scholar
  23. Vogt, P. R. and Johnson, G. L., 1975, Transform Faults and Longitudinal Flow Below the Mid-Oceanic Ridge, J. Geophys. Res. 80, 1399–1428.Google Scholar
  24. Wessel, P. and Smith, W. H. F., 1991, Free Software Helps Map and Display Data, EOS Trans. AGU 72, 441–445.Google Scholar
  25. White, R. S., Bown, J. W. and Smallwood, J. R., 1995, The Temperature of the Iceland Plume and Origin of Outward-Propagating V-Shaped Ridges, J. Geol. Soc. London 152, 1039–1045.Google Scholar

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • J. A. Keeton
    • 1
  • R. C. Searle
    • 1
  • C. Peirce
    • 1
  • B. Parsons
    • 2
  • R. S. White
    • 3
  • M. C. Sinha
    • 3
  • B. J. Murton
    • 4
  • L. M. Parson
    • 4
  1. 1.Department of Geological SciencesUniversity of DurhamDurhamUK
  2. 2.Department of Earth SciencesUniversity of OxfordOxfordUK
  3. 3.Bullard LaboratoriesUniversity of CambridgeCambridgeUK
  4. 4.Southampton Oceanography Centre, Empress DockSouthamptonUK

Personalised recommendations