| 词汇 | Laurentian |
| 词根词缀 | 词源： "granite strata in eastern Canada," 1863, named for the Laurentian Mountains, where it is found, which are named for the nearby St. Lawrence River. Hence, Laurasia, Paleozoic supercontinent comprising N.America and Eurasia, 1931, from Ger. (1928), from Laurentia, geologists' name for the ancient core of N.America + (Eur)asia. |
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