1. Thus, deposits formed in different geological period would have various lead isotope signature. 2. The Eocene was the geological period when the world's climate grew significantly warmer. 3. Cornish geology consists mainly of rocks from the Devonian and Carboniferous geological periods . 4. :"'Column 2 "'indicates during which geological period the rocks of each group were deposited. 5. The most important strata are named after the geological periods of the Mesozoic era. 6. There are also three great groups of sedimentary rocks belonging to different geological periods . 7. Tasmania s alpine landscape is dominated by two bedrock systems originating from different geological periods . 8. Previous generations of scientists had thought that chordates evolved in the later Ordovician geological period . 9. The article is classified in the appropriate subcategories of : Category : Geological periods articles. 10. He published many research papers on various geological periods .
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