Thallium isotope evidence for an anoxic global deep ocean ~1.83 billion years ago

• Ostrander, C.M.
• Heard, A.W.
• Canfield, D.E.
• Fralick, P.W.
• Nielsen, S.G.
• Clemente, J.N.R.
• Poulton, S.W. https://orcid.org/0000-0001-7621-189X

This is an author produced version of an article accepted for publication in Earth and Planetary Science Letters, made available via the University of Leeds Research Outputs Policy under the terms of the Creative Commons Attribution License (CC-BY), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited.

• Accepted: 9 September 2026