Web: http://iugg2019montreal.com/
Includes the following sessions:
V09 – The role of LIPs in environmental change and biotic extinctions on Earth over geologic time
Convenors: Richard Ernst (richard.ernst@ernstgeosciences.com), Mike Widdowson (m.widdowson@hull.ac.uk), Simon Jowitt (simon.jowitt@unlv.edu), Ingrid Ukstins Peate (ingrid-peate@uiowa.edu)
This symposium, sponsored by the Large Igneous Provinces Commission (www.largeigneousprovinces.org), focuses attention on the growing recognition that large Igneous Provinces (LIPs) and silicic LIPs (SLIPs) (Bryan & Ferrari 2013, GSAB, v. 125, p. 1053–1078; Ernst, 2014 Cambridge U. Press) can be major drivers of rapid climate change (e.g., Ernst & Youbi, 2017, PPP, v. 478, p. 30-52; Bond & Grasby, 2017 PPP, v. 478, p. 3-29), including global warming (hothouse events), global cooling (icehouse events), anoxia, stepwise oxygenation of the atmosphere, sustained chemical attack on atmospheric chemistry and ozone destruction, acid rain and ocean acidification, enhanced hydrothermal and terrestrial nutrient fluxes, and mercury poisoning. Most dramatically, Phanerozoic mass extinction events can be temporally linked to LIP emplacement. We welcome research that investigates the role of LIPs in Phanerozoic and Precambrian climate change, particularly those that utilize the sedimentary record to monitor global environmental impact, and also research that assesses selected major LIP events (and their global environmental impact) as natural timescale boundaries in the Proterozoic.