单词 | plate tectonic theory |
例句 | Third, the evidence and understanding of Earth that would have supported plate tectonic theory simply didn’t exist until the middle of the 20th century. Physical Geology 2015-01-01T00:00:00Z As mentioned in the section on paleomagnetism and the development of plate tectonic theory, scientists noticed mid-ocean ridges contained unique magnetic anomalies that show up as symmetrical striping on both sides of the ridge. An Introduction to Geology 2017-01-01T00:00:00Z |
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