Header

UZH-Logo

Maintenance Infos

Evidence for atmospheric carbon injection during the end-Permian extinction


Schneebeli-Hermann, E; Kurschner, W M; Hochuli, P A; Ware, D; Weissert, H; Bernasconi, S M; Roohi, G; ur-Rehman, K; Goudemand, N; Bucher, H (2013). Evidence for atmospheric carbon injection during the end-Permian extinction. Geology, 41(5):579-582.

Abstract

The end-Permian mass extinction is marked by pronounced terrestrial ecosystem turnover and a severe loss of marine invertebrate biodiversity. This extinction event is accompanied by a prominent negative carbon-isotope excursion indicating massive changes in the global carbon cycle across the Permian-Triassic boundary. In this study, we present organic carbon-isotope data from land plant cuticles, fossil wood fragments, and bulk organic matter recovered from the Amb section in the Salt Range, Pakistan. We apply δ13C data from cuticles as a proxy record for the carbon-isotope composition of atmospheric CO2 across the Permian-Triassic boundary. The data show an ∼5.5‰ negative excursion in terrestrial organic matter, reflecting the change in carbon-isotope composition of atmospheric CO2. Our data demonstrate that these atmospheric changes coincide with biotic (mass extinction) and abiotic (carbonate carbon-isotope perturbation) changes in the marine realm, hence affecting the entire ocean-atmosphere system.

Abstract

The end-Permian mass extinction is marked by pronounced terrestrial ecosystem turnover and a severe loss of marine invertebrate biodiversity. This extinction event is accompanied by a prominent negative carbon-isotope excursion indicating massive changes in the global carbon cycle across the Permian-Triassic boundary. In this study, we present organic carbon-isotope data from land plant cuticles, fossil wood fragments, and bulk organic matter recovered from the Amb section in the Salt Range, Pakistan. We apply δ13C data from cuticles as a proxy record for the carbon-isotope composition of atmospheric CO2 across the Permian-Triassic boundary. The data show an ∼5.5‰ negative excursion in terrestrial organic matter, reflecting the change in carbon-isotope composition of atmospheric CO2. Our data demonstrate that these atmospheric changes coincide with biotic (mass extinction) and abiotic (carbonate carbon-isotope perturbation) changes in the marine realm, hence affecting the entire ocean-atmosphere system.

Statistics

Citations

Dimensions.ai Metrics
21 citations in Web of Science®
20 citations in Scopus®
17 citations in Microsoft Academic
Google Scholar™

Altmetrics

Downloads

2 downloads since deposited on 18 Apr 2013
1 download since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Paleontological Institute and Museum
Dewey Decimal Classification:560 Fossils & prehistoric life
Scopus Subject Areas:Physical Sciences > Geology
Language:English
Date:2013
Deposited On:18 Apr 2013 07:09
Last Modified:18 Mar 2020 22:35
Publisher:Geological Society of America
ISSN:0091-7613
OA Status:Closed
Publisher DOI:https://doi.org/10.1130/G34047.1

Download

Closed Access: Download allowed only for UZH members