Aluminum-26 in Pacific Sediment: Implications
- 27 January 1967
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 155 (3761) , 446-448
- https://doi.org/10.1126/science.155.3761.446
Abstract
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.Keywords
This publication has 8 references indexed in Scilit:
- Some Doubts about the Earth's Dust CloudScience, 1966
- Low-Energy Protons: Average Flux in Interplanetary Space during the Last 100,000 YearsScience, 1966
- Search for aluminum-26 in dust from the Greenland ice sheetGeochimica et Cosmochimica Acta, 1965
- MEASURED DEPOSITION RATES OF MARINE SEDIMENTS AND IMPLICATIONS FOR ACCUMULATION RATES OF EXTRATERRESTRIAL DUSTAnnals of the New York Academy of Sciences, 1964
- Radioactivity in interplanetary dustIcarus, 1963
- Geochronological studies of deep sea sediments by the ionium/thorium methodGeochimica et Cosmochimica Acta, 1962
- Spectrometric measurement of natural and cosmic-ray induced radioactivity in meteoritesGeochimica et Cosmochimica Acta, 1960
- The record in the meteorites—II on the presence of aluminium-26 in meteorites and tektitesGeochimica et Cosmochimica Acta, 1960