Modeling of these Tl isotope data indicates that seafloor Mn oxide burial decreased by at least 50% during the peak T-OAE; however, Tl isotopes are not a direct proxy for seafloor anoxic area, leaving ...

Potassium-Argon dating is similar to Carbon 14 dating because it uses radioactive decay, measuring the rate of change from an unstable isotope, to a stable one. This method is a little different ...

Conclusion In this study, we successfully developed an accurate method for analyzing stable isotope ratios of fatty acid methyl esters (FAMEs) using ESI-Orbitrap mass spectrometry. Our approach ...