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Catastrophic soil erosion during the end-Permian biotic crisis

Sephton, Mark A.; Looy, Cindy V.; Brinkhuis, Henk; Wignall, Paul B.; de Leeuw, Jan W. and Visscher, Henk (2005). Catastrophic soil erosion during the end-Permian biotic crisis. Geology, 33(12) pp. 941–944.

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Organic geochemical analyses of sedimentary organic matter from a marine Permian-Triassic transition sequence in northeastern Italy reveal a significant influx of land-derived diagenetic products of polysaccharides. This unique event reflects massive soil erosion resulting from destruction of land vegetation due to volcanogenic disturbance of atmospheric chemistry. The excessive supply of soil materials to the oceans provides a direct link between terrestrial and marine ecological crises, suggesting that ecosystem collapse on land could have contributed to the end-Permian marine extinctions.

Item Type: Journal Article
ISSN: 0091-7613
Keywords: Permian-Triassic boundary, ecological crisis, mass extinction, carbon isotope, polysaccharide, soil erosion
Academic Unit/Department: Science > Environment, Earth and Ecosystems
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 8474
Depositing User: Users 2315 not found.
Date Deposited: 16 Jul 2007
Last Modified: 02 Dec 2010 20:01
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