Solar Nitrogen: Evidence for a Secular Increase in the Ratio of Nitrogen-15 to Nitrogen-14
- 11 April 1975
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 188 (4184) , 162-164
- https://doi.org/10.1126/science.188.4184.162
Abstract
Solar wind nitrogen, implanted in lunar soil samples, exhibits isotopic variations that are related to the time, although not to the duration, of implantation, with earlier samples characterized by lower ratios of nitrogen-15 to nitrogen-14. An increase in the solar nitrogen-15 content during the lifetime of the lunar regolith is probably caused by spallation of oxygen-16 in the surface regions of the sun.Keywords
This publication has 3 references indexed in Scilit:
- Light element geochemistry of the Apollo 16 siteGeochimica et Cosmochimica Acta, 1975
- Carbon, nitrogen and sulfur in lunar fines 15012 and 15013: abundances, distributions and isotopic compositionsGeochimica et Cosmochimica Acta, 1974
- Solar abundances of light nuclei and mixing of the SunSolar Physics, 1973