| 11. | -- > However an isotope analysis suggests that oxygenic photosynthesis may have been widespread as early as.
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| 12. | Isotope analysis suggests that a substantial part of the diet of these individuals came from freshwater fish.
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| 13. | Sediment isotope analysis of cosmogenic atoms in the fossil yielded an age of about 7 million years.
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| 14. | Stable isotope analysis measures the amount of different isotopes of the same element contained within a specimen.
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| 15. | Based on stable isotope analysis, their diet in Haida Gwaii seems to consist primarily of small mesopelagic fish.
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| 16. | Isotope analysis can be used to identify some chemical elements that allows researchers to make inferences about diet.
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| 17. | Using isotope analysis, she reconstructed the diet from the archaeological human remains from different burial sites in the Philippines.
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| 18. | Based on stable isotope analysis, it is evident that its diet consisted primarily of dicotyledonous trees and monocotyledonous grasses.
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| 19. | Isotope analysis of magmatic rocks have shown Crystal fractionation and melting of upper crustal rocks further complicate the pattern.
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| 20. | Stable isotope analysis done on the bones indicated that she had a diet primarily of wheat, rather than corn.
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