The Boise State University Isotope Geology Laboratory (IGL) is a state-of-the-art geoanalytical facility for the analysis of trace elements and radiogenic isotopes in Earth materials, using both ...

The team then measured the composition of three different oxygen isotopes. Isotopes are atoms of the same element that have varying numbers of neutrons, which changes their mass — the more ...

Collagen was extracted and analyzed for bulk stable isotopes of carbon-13 (δ 13 C) and nitrogen-15 (δ 15 N) and compound-specific isotopes of individual amino acids. Radiocarbon dating provided ...

The results were published in the Proceedings of the National Academy of Sciences (PNAS). The researchers analysed oxygen isotopes from 14 samples from the Moon and carried out 191 measurements on ...