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