Late Ordovician climate change and extinctions driven by elevated volcanic nutrient supply

@article{Longman2021LateOC,
  title={Late Ordovician climate change and extinctions driven by elevated volcanic nutrient supply},
  author={Jack Longman and Benjamin J. W. Mills and Hayley R. Manners and Thomas M. Gernon and Martin R. Palmer},
  journal={Nature Geoscience},
  year={2021},
  volume={14},
  pages={924 - 929}
}
The Late Ordovician (~459–444 million years ago) was characterized by global cooling, glaciation and severe mass extinction. These events may have been driven by increased delivery of the nutrient phosphorus (P) to the ocean and associated increases in marine productivity, but it is not clear why this occurred in the two pulses identified in the geological record. We link both cooling phases—and the extinction—to volcanic eruptions through marine deposition of nutrient-rich ash and the… 

A nutrient control on expanded anoxia and global cooling during the Late Ordovician mass extinction

Expanded ocean anoxia and global cooling have been invoked as major causal mechanisms for the Late Ordovician mass extinction, but the factors underpinning the extinction remain unresolved. Here, we

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