Figure 1.
Screenshot of Ngram Viewer chart showing the frequency in the Google Books corpus of the N-grams “geosyncline” and “plate tectonics,” from 1900 to 2000. Y-axis is frequency of the N-gram in the corpus.
Screenshot of Ngram Viewer chart showing the frequency in the Google Books corpus of the N-grams “geosyncline” and “plate tectonics,” from 1900 to 2000. Y-axis is frequency of the N-gram in the corpus.