Aluminum-26 in Pacific Sediment: Implications

Details Aluminum-26 in Pacific Sediment: Implications Aluminum-26 in Pacific Sediment: Implications

Jan 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967sci...155..446w&link_type=abstract

Science, Volume 155, Issue 3761, pp. 446-448

Physics

4

Scientific paper

Aluminum-26 has been detected in a sample of sediment from the South Pacific. The disintegration rate of 0.8 disintegration per minute per kilogram of dry sediment is considerably higher than that expected from cosmic-ray spallation of atmospheric argon; it appears to result mainly from accretion of activity induced in interplanetary dust by solar-flare particles. This finding is in keeping with Wasson's published estimates regarding the magnitude of this effect, and confirms the order-of-magnitude correctness of the solar-particle flux and terrestrial accretion rate of interplanetary dust used in that calculation.

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