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.

  • Letter
  • Published:

No evidence for glacial origin of late Precambrian tilloids in Angola (reply)

Abstract

DR KRÖNER REPLIES: Schermerhorn concludes that our evidence in favour of a glacial origin for the Angolan mixtites1 is insubstantial and unsound. During a field excursion in 1973 he failed to convince any of the participants of a mudflow origin for his tilloids. He also rejected a glacial origin for the late Precambrian Numees mixtite in South West Africa2–6. Here I shall correct some of the misinformation he presents.

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

Access options

Buy this article

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

Similar content being viewed by others

References

  1. Kröner, A., and Correia, H., Nature phys. Sci., 246, 115 (1973).

    Article  ADS  Google Scholar 

  2. Kröner, A., IUCS Geological Newsletter, 4, 286 (1973).

    Google Scholar 

  3. Martin, H., The Precambrian geology of South West Africa and Namaqualand (Precambrian Research Unit, Univ. Cape Town, 1965).

    Google Scholar 

  4. Kröner, A., and Rankama, K., Geol. Soc. Finland Bull., 45, 79 (1973).

    Article  Google Scholar 

  5. Kröner, A., Trans. R. Soc. S. Afr. (in the press); Bulletin of the Precambrian Research Unit, Univ. Cape Town, 13 (1974).

    Google Scholar 

  6. Schermerhorn, L. J. G., Am. J. Sci., 274, 673 (1974).

    Article  ADS  Google Scholar 

  7. Reid, A. B., and Kröner, A., Precambrian Research Unit, Univ. Cape Town, ann. Rep., 104, (1974).

  8. Schermerhorn, L. J. G., and Stanton, W. I., Q. Jl geol. Soc. Lond., 119, 201 (1963).

    Article  Google Scholar 

  9. Spencer, A. M., Mem. geol. Soc. Lond., 6 (1971).

  10. Trompette, R., Laboratoire associé au C.N.R.S. No. 132, B 6 (1973).

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

KRÖNER No evidence for glacial origin of late Precambrian tilloids in Angola (reply). Nature 252, 115–116 (1974). https://doi.org/10.1038/252115a0

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1038/252115a0

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.

Search

Quick links

Nature Briefing

Sign up for the Nature 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