| 单词 | cratonic |
| 释义 | > as lemmascraˈtonic craˈtonic adj. of, pertaining to, or designating a craton. ΘΚΠ the world > the earth > structure of the earth > [adjective] > kratogen kratogenic1934 cratonic1935 cratonal1944 1935 tr. H. Stille in Research & Progress I. 10 And so there arose at last the great craterous [corrected (p. 94) to cratonic] ring ‘Peri-Arctis’. 1971 I. G. Gass et al. Understanding Earth xxii. 320/2 All of these areas lie within the older cratonic regions of Africa. 1976 A. Rittmann & L. Rittmann Volcanoes 120/1 Deposits of mercury, silver, gold, uranium and lead are derived from orogenic volcanism, and iron, copper, nickel, manganese and titanium from cratonic volcanism. 1992 Earth Surface Processes & Landforms 17 339 This contradicts Fairbridge and Fiukl's suggestion that cratonic denudation rates are several orders of magnitude less than those of other areas. < as lemmas |
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