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.

DOI: https://doi.org/10.1130/G21784.1

Abstract

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.

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• Item ORO ID
• 8474
• Item Type
• Journal Item
• ISSN
• 0091-7613
• Keywords
• Permian-Triassic boundary, ecological crisis, mass extinction, carbon isotope, polysaccharide, soil erosion
• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Depositing User
• Users 2315 not found.