Of, pertaining to, or designating the most recent division of the Proterozoic in North America, as represented by rocks in the region of the Great…
单词 | θ5451 |
释义 | the world > the earth > structure of the earth > age or period > [noun] > Pre-Cambrian > Proterozoic > specific (2) Keweenawan1876 Of, pertaining to, or designating the most recent division of the Proterozoic in North America, as represented by rocks in the region of the Great… Keewatin1886 Used attributively and absol. to denote the oldest division of the Archaean in North America and rocks representing it, found in the Canadian… |
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