Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation

@article{Bond2020LateOM,
  title={Late Ordovician mass extinction caused by volcanism, warming, and anoxia, not cooling and glaciation},
  author={David P. G. Bond and Stephen E. Grasby},
  journal={Geology},
  year={2020},
  volume={48},
  pages={777-781}
}
The Ordovician saw major diversification in marine life abruptly terminated by the Late Ordovician mass extinction (LOME). Around 85% of species were eliminated in two pulses 1 m.y. apart. The first pulse, in the basal Hirnantian, has been linked to cooling and Gondwanan glaciation. The second pulse, later in the Hirnantian, is attributed to warming and anoxia. Previously reported mercury (Hg) spikes in Nevada (USA), South China, and Poland implicate an unknown large igneous province (LIP) in… 
Major volcanic eruptions linked to the Late Ordovician mass extinction: Evidence from mercury enrichment and Hg isotopes
Abstract The Late Ordovician mass extinction (LOME) was the second most severe Phanerozoic biodiversity crisis. While environmental deterioration and oceanographic changes associated with the
Volcanism-induced late Boda warming in the Late Ordovician: Evidence from the Upper Yangtze Platform, South China
Abstract Late Boda warming was the last warm episode in the Late Ordovician, and little is known about its cause. Volcanism was a hypothetical candidate that triggered this warming event owing to its
Sulfidic anoxia in the oceans during the Late Ordovician mass extinctions – insights from molybdenum and uranium isotopic global redox proxies
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Mercury linked to Deccan Traps volcanism, climate change and the end-Cretaceous mass extinction
Abstract Mercury (Hg) anomalies linked to Large Igneous Provinces (LIP) volcanism have been identified in sediments across all five major mass extinctions in Earth's history. This study tests whether
Redox changes in the outer Yangtze Sea (South China) through the Hirnantian Glaciation and their implications for the end-Ordovician biocrisis
Abstract Two pulses of faunal mortality occurred during the Late Ordovician mass extinction (ca. 445 Ma). This biocrisis is recorded in Hirnantian strata of South China as a stepwise extinction of
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Abstract Mass extinction and extensive black shale deposition were associated with widespread ocean anoxia during the Ordovician–Silurian transitional interval, yet uncertainty among trace-metal
Ordovician palaeogeography and climate change
Abstract New palaeogeographical reconstructions for the earlier Ordovician (480 Ma), and later Ordovician (450 Ma) integrate revised longitude-calibrated palaeomagnetic reconstructions and the
Late Ordovician mass extinction caused by global warming or cooling?
The Late Ordovician mass extinction (LOME) was the first global extinction with the destruction of 85 % of marine species. However, the cause of LOME is still controversial. Most studies attribute it
Timing and patterns of the Great Ordovician Biodiversification Event and Late Ordovician mass extinction: Perspectives from South China
Abstract The early Paleozoic sediments document two major biological events: the Great Ordovician Biodiversification Event (GOBE) and Late Ordovician mass extinction (LOME). Many investigations have
Responses of oceanic chemistry to climatic perturbations during the Ordovician-Silurian transition: Implications for geochemical proxies and organic accumulations
Abstract The organic-rich sediments deposited in the Ordovician-Silurian transition (OST) on the Yangtze Platform not only represent significant shale gas sources, but also record information on the
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