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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

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Volcanism, mass extinction, and carbon isotope fluctuations in the middle permian of China

Wignall, P.B. and Sun, Y.D. and Bond, D.P.G. and Izon, G. and Newton, R.J. and Vedrine, S. and Widdowson, M. and Ali, J.R. and Cope, H. and Bottrell, S.H. and Lai, X. (2009) Volcanism, mass extinction, and carbon isotope fluctuations in the middle permian of China. Science, 324 (5931). pp. 1179-1182. ISSN 0036-8075

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Abstract

The 260-million-year-old Emeishan volcanic province of southwest China overlies and is interbedded with Middle Permian carbonates that contain a record of the Guadalupian mass extinction. Sections in the region thus provide an opportunity to directly monitor the relative timing of extinction and volcanism within the same locations. These show that the onset of volcanism was marked by both large phreatomagmatic eruptions and extinctions amongst fusulinacean foraminifers and calcareous algae. The temporal coincidence of these two phenomena supports the idea of a cause-and-effect relationship. The crisis predates the onset of a major negative carbon isotope excursion that points to subsequent severe disturbance of the ocean-atmosphere carbon cycle.