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Paper on early Silurian redox published
The Ordovician-Silurian extinction was the first major mass extinction of the Phanerozoic, yet its cause(s) remain debated. A new paper by Richard Stockey, published in Nature Communications, demonstrates that oceans spanning the Ordovician-Silurian boundary and through the first several million years of the Silurian had extensive regions that were anoxic and sulfidic, and that these low-oxygen oceans correlate with lower diversity in the fossil record. The paper used a novel Monte Carlo framework to better account for uncertainty in metal isotope mass balance models.
A press release from Stanford Earth can be found here.