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Evidence for atmospheric pollution across the Permian-Triassic transition

Peter A. Hochuli, Elke Schneebeli-Hermann, Gunn Mangerud and Hugo Bucher
Evidence for atmospheric pollution across the Permian-Triassic transition
Geology (Boulder) (December 2017) 45 (12): 1123-1126


Evidence for a cause-and-effect relationship between the emplacement of the Siberian Traps large igneous province and the Permian-Triassic marine mass extinction has been growing over the past decades. However, how the Siberian Traps volcanism affected the terrestrial vegetation is still a matter of controversy. Here, we demonstrate that a substantial part of plants' life cycle, namely their reproductive organs, was adversely affected by environmental conditions. Effects include malformed spores and pollen grains, unseparated tetrads, and darkened walls of spores and pollen (sporoderm) from Permian-Triassic sediments from the Finnmark Platform offshore Norway. The co-occurrence of these morphological changes with the main carbon isotope excursion and the marine mass extinction may suggest that they were caused by atmospheric pollution linked to Siberian Traps emissions.

ISSN: 0091-7613
EISSN: 1943-2682
Serial Title: Geology (Boulder)
Serial Volume: 45
Serial Issue: 12
Title: Evidence for atmospheric pollution across the Permian-Triassic transition
Affiliation: University of Zuerich, Institute and Museum of Palaeontology, Zurich, Switzerland
Pages: 1123-1126
Published: 201712
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 31
Accession Number: 2018-024452
Categories: Stratigraphy
Document Type: Serial
Bibliographic Level: Analytic
Annotation: GSA Data Repository item 2017388
Illustration Description: illus.
N64°00'00" - N80°00'00", E10°00'00" - E67°00'00"
Secondary Affiliation: University of Bergen, NOR, Norway
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 201806
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