Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Lawrence M. E. Percival +3 more
wiley +10 more sources
Volcanism and basalt weathering drove Ordovician climatic cooling [PDF]
Nature CommunicationsCausal connections among major Ordovician environmental and biological events (i.e., long-term climatic cooling, Hirnantian Glaciation, Great Ordovician Biodiversification Event, and Late Ordovician Mass Extinction) remain in debate, and the hypothesis ...
He Zhao +5 more
doaj +2 more sources
Phylogenetic Clustering of Origination and Extinction across the Late Ordovician Mass Extinction. [PDF]
PLoS ONE, 2015 Mass extinctions can have dramatic effects on the trajectory of life, but in some cases the effects can be relatively small even when extinction rates are high.
Andrew Z Krug, Mark E Patzkowsky
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Biogeographic and bathymetric determinants of brachiopod extinction and survival during the Late Ordovician mass extinction. [PDF]
Proc Biol Sci, 2016 The Late Ordovician mass extinction (LOME) coincided with dramatic climate changes, but there are numerous ways in which these changes could have driven marine extinctions.
Finnegan S, Rasmussen CM, Harper DA.
europepmc +2 more sources
Late Ordovician eurypterid preserves oldest euchelicerate musculature in pyrite. [PDF]
Biol LettPyritization of soft tissues of invertebrates is rare in the fossil record. In New York State, it occurs in black shales of the Lorraine Group (Late Ordovician), the best-known example of which is Beecher's Trilobite Bed. Exceptional preservation at the quarry where this bed is exposed allowed detailed examination of trilobite and ostracod soft-tissue ...
Bicknell RDC, Gaines RR, Hopkins MJ.
europepmc +3 more sources
Glacial onset predated Late Ordovician climate cooling [PDF]
Paleoceanography, 2016 AbstractThe Ordovician glaciation represents the acme of one of only three major icehouse periods in Earth's Phanerozoic history and is notorious for setting the scene for one of the “big five” mass extinction events. Nevertheless, the mechanisms that drove ice sheet growth remain poorly understood and the final extent of the ice sheet crudely ...
Pohl, Alexandre +6 more
openaire +4 more sources
Global palaeogeographical implication of acritarchs in the Upper Ordovician [PDF]
Estonian Journal of Earth Sciences, 2023 The EarlyâMiddle Ordovician peri-Gondwana and Baltica acritarch provinces are easily recognizable, illustrating a clear provincialism of global phytoplankton.
Yan Kui +4 more
doaj +1 more source
Greenhouse-icehouse transition in the Late Ordovician marks a step change in extinction regime in the marine plankton. [PDF]
Proc Natl Acad Sci U S A, 2016 Crampton JS +3 more
europepmc +2 more sources
The Irish Ordovician brachiopod fauna: A taxonomic renaissance [PDF]
Estonian Journal of Earth Sciences, 2023 Despite its small areal extent, the island of Ireland exposes eight Caledonian tectonic terranes; six of them contain Ordovician brachiopod assemblages. These terranes record the early phases and destruction of the Iapetus Ocean through the occurrence of
David A. T. Harper
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Graptolite community responses to global climate change and the Late Ordovician mass extinction. [PDF]
Proc Natl Acad Sci U S A, 2016 Sheets HD +6 more
europepmc +2 more sources