| 单词 | optical dating |
| 释义 | > as lemmasoptical dating optical dating n. Archaeology a technique for determining the time since a mineral sediment was last exposed to sunlight, in which electrons trapped at light-sensitive locations within the mineral are excited using an intense light source, and the resulting luminescence is measured. ΚΠ 1985 Nature 10 Jan. 105 (title) Optical dating of sediments. 1995 Daily Tel. 17 Feb. 9 The archaeological team..had made use of optical stimulated luminescence dating. ‘This is known more simply as optical dating, which can give the approximate date of the last exposure to sunlight of the buried soils,’ said Mr Miles. < as lemmas |
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