单词 | astrochronology |
释义 | > as lemmasastrochronology astrochronology n. Brit. , U.S. the study of the chronology and periodicity of celestial objects.ΚΠ 1858 Mechanics' Mag. 31 July 110/1 Mr. Henry Drummond happened to be in Dundee when Mr. Lindsay's recent work on Astro-Chronology was published. 1873 Leisure Hour 22 Mar. 188/1 Mr. Hind's important investigation on historical eclipses..forms a most valuable contribution to what we may appropriately term the science of astro-chronology. 1940 Jrnl. Brit. Astron. Assoc. 50 284 Are there any works dealing with Astro-Chronology and Planetary Cycles in particular? 1999 Guardian 12 Aug. (Online section) 4/3 They used a new technique called astrochronology—measuring the cyclic changes in the earth's distance from the sun—to count back the salt deposits as if they were tree rings. < as lemmas |
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