| 单词 | palaeogeography |
| 例句 | We thank P. Hoffman, S. Mertanen and D. Evans for discussions about Precambrian palaeogeography and environmental changes; K. Johnson for technical help with vacuum lines; and O. Melnik for help with programming. Rapid emergence of subaerial landmasses and onset of a modern hydrologic cycle 2.5 billion years ago 2018-05-22T04:00:00Z |
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