Movatterモバイル変換


[0]ホーム

URL:


Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Advertisement

Nature
  • Article
  • Published:

Age of KBS Tuff in Koobi Fora Formation, East Rudolf, Kenya

Naturevolume 258pages395–398 (1975)Cite this article

ACorrigendum to this article was published on 11 December 1975

Abstract

Conventional K–Ar dates on pumice from the KBS Tuff horizon in the Koobi Fora Formation at East Rudolf, Kenya, distinguish two tuff units. Samples from area 10 and area 105 give an age of 1.60±0.05 Myr whereas those from area 131 give 1.82±0.04 Myr. Both ages differ from the previously published age of 2.61±0.26 Myr obtained by40Ar/39Ar technique.

This is a preview of subscription content,access via your institution

Access options

Access through your institution

Subscription info for Japanese customers

We have a dedicated website for our Japanese customers. Please go tonatureasia.com to subscribe to this journal.

Buy this article

  • Purchase on SpringerLink
  • Instant access to full article PDF

Prices may be subject to local taxes which are calculated during checkout

Similar content being viewed by others

References

  1. Behrensmeyer, A. K., inEarliest Man and Environments in the Rudolf Basin: Stratigraphy, Palaeoecology, and Evolution (edit. by Coppens, Y., Howell, F. C., Isaac, G. L., and Leakey, R. E.), (University of Chicago Press, Chicago, 1975).

    Google Scholar 

  2. Leakey, R. E. F., Behrensmeyer, A. K., Fitch, F. J., Miller, J. A., and Leakey, M. D.,Nature,226, 223–230 (1970).

    Article CAS  Google Scholar 

  3. Vondra, C. F., Johnson, G. D., Behrensmeyer, A. K., and Bowen, B. E.,Nature,231, 245–248 (1971).

    Article CAS  Google Scholar 

  4. Vondra, C. F., and Bowen, B. E., inEarliest Man and Environments in the Rudolf Basin: Stratigraphy, Palaeoecology, and Evolution (edit. by Coppens, Y., Howell, F. C., Isaac, G. L., and Leakey, R.E.F.), (University of Chicago Press, Chicago, 1975).

    Google Scholar 

  5. Leakey, R. E. F., Mungai, J. M., and Walker, A. C.,Am. J. phys. Anthrop.,35, 175–186 (1971).

    Article  Google Scholar 

  6. Leakey, R. E. F.,Nature,242, 170–173 (1972).

    Article  Google Scholar 

  7. Maglio, V. I.,Nature,239, 379–385 (1972).

    Article CAS  Google Scholar 

  8. Isaac, G. L., Leakey, R. E. F., and Behrensmeyer, A. K.,Science,173, 1129–1134 (1971).

    Article CAS  Google Scholar 

  9. Fitch, F. J., and Miller, J. A.,Nature,226, 226–228 (1970).

    Article CAS  Google Scholar 

  10. Fitch, F. J., Findlater, I. C., Watkins, R. T., and Miller, J. A.,Nature,251, 213–215 (1974).

    Article  Google Scholar 

  11. Fitch, F. J., and Miller, J. A., inEarliest Man and Environments in the Rudolf Basin: Stratigraphy, Palaeoecology, and Evolution (edit. by Coppens, Y., Howell, F. C., Isaac, G. L., and Leakey, R. E. F.), (University of Chicago Press, Chicago, 1975).

    Google Scholar 

  12. Hurford, A. J.,Nature,249, 236–237 (1974).

    Article CAS  Google Scholar 

  13. Cooke, H. B. S., and Maglio, V. J., inCalibration of Hominoid Evolution (edit. by Bishop, W. W., and Miller, J. A.), 303–368 (Scottish Academic, Edinburgh, 1972).

    Google Scholar 

  14. Brown, F. H.,Quaternaria,11, 7–14 (1969).

    Google Scholar 

  15. Brown, F. H., and Lajoie, K. R.,Nature,229, 483–485 (1971).

    Article CAS  Google Scholar 

  16. Maglio, V. J.,Nature,239, 379–385 (1972).

    Article CAS  Google Scholar 

  17. Dalrymple, G. B., and Lanphere, M. A.,Potassium–Argon Dating: Principles, Techniques, and Applications to Geochronology (Freeman, San Francisco, 1969).

    Google Scholar 

  18. Jack, R. N., and Carmichael, I. S. E.,The Chemical ‘Fingerprinting’ of Acid Volcanic Rocks, Calif. Div. Mines and Geology Short Contr. SR 100, 17–30 (1969).

    Google Scholar 

  19. Shafiqullah, M., and Damon, P. E.,Geochim. cosmochim. Acta,38, 1341–1358 (1974).

    Article CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Geology & Geophysics, University of California, Berkeley, California, 94720

    G. H. Curtis,  Drake, T. Cerling &  Hampel

  2. Geophysics, University of California, Berkeley, California, 94720

    G. H. Curtis,  Drake, T. Cerling &  Hampel

Authors
  1. G. H. Curtis
  2. Drake
  3. T. Cerling
  4. Hampel

Rights and permissions

About this article

Cite this article

Curtis, G., Drake, Cerling, T.et al. Age of KBS Tuff in Koobi Fora Formation, East Rudolf, Kenya.Nature258, 395–398 (1975). https://doi.org/10.1038/258395a0

Download citation

This article is cited by

Access through your institution
Buy or subscribe

Associated content

Collection

100 years of Australopithecus

Advertisement

Search

Advanced search

Quick links

Nature Briefing

Sign up for theNature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox.Sign up for Nature Briefing

[8]ページ先頭

©2009-2025 Movatter.jp