| 单词 | tephrochronological |
| 释义 | > as lemmasˌtephrochronoˈlogical ˌtephrochronoˈlogical adj. ΘΚΠ the world > the earth > earth sciences > geology > [adjective] > dating geochronological1919 tephrochronological1944 geochronometric1951 lichenometrical1958 lichenometric1959 1944 S. Thórarinsson in Geografiska Annaler XXVI. 204 (heading) Tephrochronological studies in Iceland. 1979 Sci. Amer. Dec. 132/1 A volcano produces successive showers of tephra that fall throughout the surrounding countryside, forming layers that constitute a tephrochronological record of the volcano's activity. < as lemmas |
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