释义 |
fission-track dating
fission-track dating n (General Physics) the dating of samples of minerals by comparing the tracks in them by fission fragments of the uranium nuclei they contain, before and after irradiation by neutrons fission-track dating
fission-track dating[′fish·ən ‚trak ‚dād·iŋ] (geology) A method of dating geological specimens by counting the radiation-damage tracks produced by spontaneous fission of uranium impurities in minerals and glasses. |