Abstract
THE recent detection of aluminium-26 in marine sediments by Amin, Kharkar and Lal1 has posed a question about the origin of this nuclide. Lal and Venkatavaradan2 pointed out that the amount of aluminium-26 in sediments is an order of magnitude higher than expected, as a result of its production by cosmic ray interactions in the terrestrial environment. Thus they concluded that the large amount of aluminium-26 can only be explained by postulating an influx with extraterrestrial cosmic dust which has been exposed to a significant flux of energetic particles capable of producing nuclear interactions.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- 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
Amin, B. S., Kharkar, D. P., and Lal, D., Deep-Sea Res., 13, 805 (1966).
Lal, D., and Venkatavaradan, V. S., Science, 151, 1381 (1966).
Yiou, F., Baril, M., Dufaure de Citres, J., Fontes, P., Gradsztajn, E., and Bernas, R., Phys. Rev. (in the press).
Lal, D., and Peters, B., in Handbuch der Physik, 46/2 (Springer, Berlin, 1967).
Honda, M., and Lal, D., Nucl. Phys., 51, 363 (1964).
Reeves, H., J. Physiq. (suppl.), colloque No. 1, Cl, 28 (1966).
Nilsson, C., Science, 153, 1242 (1966).
Goldberg, E. D., and Koide, M., Geochim. Cosmochim. Acta, 26, 417 (1962).
Teh-Lung Ku, thesis, Columbia Univ. (1966).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
YOKOYAMA, Y. Terrestrial Origin of Aluminium-26 and Oceanic Sedimentation Rate. Nature 216, 569–571 (1967). https://doi.org/10.1038/216569a0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1038/216569a0
This article is cited by
-
Sea Sediments, Cosmic Rays, and Pulsars
Nature (1973)
-
Accretion Rate of Cosmic Dust estimated from Cosmogenic Aluminium-26
Nature (1968)
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.
