Ocean acidification and the Permo-Triassic mass extinction
@article{Clarkson2015OceanAA, title={Ocean acidification and the Permo-Triassic mass extinction}, author={Matthew O Clarkson and Simone A. Kasemann and Rachel Wood and Timothy M. Lenton and Stuart J. Daines and Sylvain Richoz and Frank Ohnemueller and A. J. Meixner and Simon W. Poulton and Edward T. Tipper}, journal={Science}, year={2015}, volume={348}, pages={229 - 232} }
Ocean acidification and mass extinction The largest mass extinction in Earth's history occurred at the Permian-Triassic boundary 252 million years ago. Several ideas have been proposed for what devastated marine life, but scant direct evidence exists. Clarkson et al. measured boron isotopes across this period as a highly sensitive proxy for seawater pH. It appears that, although the oceans buffered the acidifiying effects of carbon release from contemporary pulses of volcanism, buffering failed…
245 Citations
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References
SHOWING 1-10 OF 146 REFERENCES
The Geological Record of Ocean Acidification
- Environmental Science, GeologyScience
- 2012
The geological record contains long-term evidence for a variety of global environmental perturbations, including ocean acidification plus their associated biotic responses, over the past ~300 million years of Earth’s history.
Major perturbation of ocean chemistry and a ‘Strangelove Ocean’ after the end‐Permian mass extinction
- Environmental Science, Geography
- 2005
The severe mass extinction of marine and terrestrial organisms at the end of the Permian Period (c. 251 Ma) was accompanied by a rapid (<100 000 years and possibly <10 000 years) negative excursion…
Calcium isotope constraints on the end-Permian mass extinction
- Environmental Science, GeographyProceedings of the National Academy of Sciences
- 2010
The results point toward Siberian Trap volcanism as the trigger of mass extinction as well as CO2-driven ocean acidification best explains the coincidence of the δ44/40Ca excursion with negative excursions in theδ13C of carbonates and organic matter and the preferential extinction of heavily calcified marine animals.
Simulating Permian–Triassic oceanic anoxia distribution: Implications for species extinction and recovery
- Environmental Science, Geography
- 2012
The biggest mass extinction in the Phanerozoic, at the end of the Permian, has been associ- ated with oceanic changes, but the exact dynamics are still debated. Intensifi ed stratifi cation,…
Initial assessment of the carbon emission rate and climatic consequences during the end-Permian mass extinction
- Environmental Science, Geography
- 2013
δ13C evidence that high primary productivity delayed recovery from end-Permian mass extinction
- Environmental Science, Geography
- 2011
Examination of hypotheses for the Permo–Triassic boundary extinction by carbon cycle modeling
- Environmental ScienceProceedings of the National Academy of Sciences of the United States of America
- 2002
Modeling indicates that measured short-term changes in δ13C at the boundary are best explained by methane release with mass mortality and volcanic degassing contributing in secondary roles, which results in excessively high levels of atmospheric CO2 if they occurred on time scales of more than about 1,000 years.
Climate warming in the latest Permian and the Permian-Triassic mass extinction
- Environmental Science, Geography
- 2012
High-resolution oxygen isotope records document the timing and magnitude of global warming across the Permian-Triassic (P-Tr) boundary. Oxygen isotope ratios measured on phosphate-bound oxygen in…
Global warming and the end-Permian extinction event: Proxy and modeling perspectives
- Environmental Science, Geography
- 2015