The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis.
We present new high-precision 40Ar/39Ar ages on feldspar and biotite separates to establish the age, duration and extent of the larger Siberian Traps volcanic province. Samples include basalts and gabbros from Noril'sk, the Lower Tunguska area on the Siberian craton, the Taimyr Peninsula, the K...
Published in: | Earth and Planetary Science Letters |
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Format: | Article in Journal/Newspaper |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S0012821X08006389 http://hdl.handle.net/2381/4204 https://doi.org/10.1016/j.epsl.2008.09.030 |
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ftleicester:oai:lra.le.ac.uk:2381/4204 2023-05-15T18:31:16+02:00 The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. Reichow, Marc K. Pringle, M. S. Al'Mukhamedov, A. I. Allen, M. B. Andreichev, V. L. Buslov, M. M. Davies, C. E. Fedoseev, G. S. Fitton, J. G. Inger, S. Medvedev, A. Ya. Mitchell, C, Puchkov, V. N. Safonova, I. Yu. Scott, R. A. Saunders, A. D. 2009-02-04T15:49:44Z http://www.sciencedirect.com/science/article/pii/S0012821X08006389 http://hdl.handle.net/2381/4204 https://doi.org/10.1016/j.epsl.2008.09.030 en eng Elsevier Earth and Planetary Science Letters, 2009, 277 (1-2), pp. 9-20. 0012-821X http://www.sciencedirect.com/science/article/pii/S0012821X08006389 http://hdl.handle.net/2381/4204 doi:10.1016/j.epsl.2008.09.030 This is the author's final draft of the paper published as Earth and Planetary Science Letters, 2009, 277 (1-2), pp. 9-20. The final version is available from http://www.sciencedirect.com/science/journal/0012821X. Doi: doi:10.1016/j.epsl.2008.09.030 Article 2009 ftleicester https://doi.org/10.1016/j.epsl.2008.09.030 2019-03-22T20:13:16Z We present new high-precision 40Ar/39Ar ages on feldspar and biotite separates to establish the age, duration and extent of the larger Siberian Traps volcanic province. Samples include basalts and gabbros from Noril'sk, the Lower Tunguska area on the Siberian craton, the Taimyr Peninsula, the Kuznetsk Basin, Vorkuta in the Polar Urals, and from Chelyabinsk in the southern Urals. Most of the ages, except for those from Chelyabinsk, are indistinguishable from those found at Noril'sk. Cessation of activity at Noril'sk is constrained by a 40Ar/39Ar age of 250.3 ± 1.1 Ma for the uppermost Kumginsky Suite. The new 40Ar/39Ar data confirm that the bulk of Siberian volcanism occurred at 250 Ma during a period of less than 2 Ma, extending over an area of up to 5 million km2. The resolution of the data allows us to confidently conclude that the main stage of volcanism either immediately predates, or is synchronous with, the end-Permian mass extinction, further strengthening an association between volcanism and the end-Permian crisis. A sanidine age of 249.25 ± 0.14 Ma from Bed 28 tuff at the global section and stratotype at Meishan, China, allows us to bracket the P–Tr boundary to 0.58 ± 0.21 myr, and enables a direct comparison between the 40Ar/39Ar age of the Traps and the Permo–Triassic boundary section. Younger ages (243 Ma) obtained for basalts from Chelyabinsk indicate that volcanism in at least the southern part of the province continued into the Triassic. Article in Journal/Newspaper Taimyr Vorkuta University of Leicester: Leicester Research Archive (LRA) Tunguska ENVELOPE(144.784,144.784,59.388,59.388) Earth and Planetary Science Letters 277 1-2 9 20 |
institution |
Open Polar |
collection |
University of Leicester: Leicester Research Archive (LRA) |
op_collection_id |
ftleicester |
language |
English |
description |
We present new high-precision 40Ar/39Ar ages on feldspar and biotite separates to establish the age, duration and extent of the larger Siberian Traps volcanic province. Samples include basalts and gabbros from Noril'sk, the Lower Tunguska area on the Siberian craton, the Taimyr Peninsula, the Kuznetsk Basin, Vorkuta in the Polar Urals, and from Chelyabinsk in the southern Urals. Most of the ages, except for those from Chelyabinsk, are indistinguishable from those found at Noril'sk. Cessation of activity at Noril'sk is constrained by a 40Ar/39Ar age of 250.3 ± 1.1 Ma for the uppermost Kumginsky Suite. The new 40Ar/39Ar data confirm that the bulk of Siberian volcanism occurred at 250 Ma during a period of less than 2 Ma, extending over an area of up to 5 million km2. The resolution of the data allows us to confidently conclude that the main stage of volcanism either immediately predates, or is synchronous with, the end-Permian mass extinction, further strengthening an association between volcanism and the end-Permian crisis. A sanidine age of 249.25 ± 0.14 Ma from Bed 28 tuff at the global section and stratotype at Meishan, China, allows us to bracket the P–Tr boundary to 0.58 ± 0.21 myr, and enables a direct comparison between the 40Ar/39Ar age of the Traps and the Permo–Triassic boundary section. Younger ages (243 Ma) obtained for basalts from Chelyabinsk indicate that volcanism in at least the southern part of the province continued into the Triassic. |
format |
Article in Journal/Newspaper |
author |
Reichow, Marc K. Pringle, M. S. Al'Mukhamedov, A. I. Allen, M. B. Andreichev, V. L. Buslov, M. M. Davies, C. E. Fedoseev, G. S. Fitton, J. G. Inger, S. Medvedev, A. Ya. Mitchell, C, Puchkov, V. N. Safonova, I. Yu. Scott, R. A. Saunders, A. D. |
spellingShingle |
Reichow, Marc K. Pringle, M. S. Al'Mukhamedov, A. I. Allen, M. B. Andreichev, V. L. Buslov, M. M. Davies, C. E. Fedoseev, G. S. Fitton, J. G. Inger, S. Medvedev, A. Ya. Mitchell, C, Puchkov, V. N. Safonova, I. Yu. Scott, R. A. Saunders, A. D. The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
author_facet |
Reichow, Marc K. Pringle, M. S. Al'Mukhamedov, A. I. Allen, M. B. Andreichev, V. L. Buslov, M. M. Davies, C. E. Fedoseev, G. S. Fitton, J. G. Inger, S. Medvedev, A. Ya. Mitchell, C, Puchkov, V. N. Safonova, I. Yu. Scott, R. A. Saunders, A. D. |
author_sort |
Reichow, Marc K. |
title |
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
title_short |
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
title_full |
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
title_fullStr |
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
title_full_unstemmed |
The timing and extent of the eruption of the Siberian Traps large igneous province: Implications for the end-Permian environmental crisis. |
title_sort |
timing and extent of the eruption of the siberian traps large igneous province: implications for the end-permian environmental crisis. |
publisher |
Elsevier |
publishDate |
2009 |
url |
http://www.sciencedirect.com/science/article/pii/S0012821X08006389 http://hdl.handle.net/2381/4204 https://doi.org/10.1016/j.epsl.2008.09.030 |
long_lat |
ENVELOPE(144.784,144.784,59.388,59.388) |
geographic |
Tunguska |
geographic_facet |
Tunguska |
genre |
Taimyr Vorkuta |
genre_facet |
Taimyr Vorkuta |
op_relation |
Earth and Planetary Science Letters, 2009, 277 (1-2), pp. 9-20. 0012-821X http://www.sciencedirect.com/science/article/pii/S0012821X08006389 http://hdl.handle.net/2381/4204 doi:10.1016/j.epsl.2008.09.030 |
op_rights |
This is the author's final draft of the paper published as Earth and Planetary Science Letters, 2009, 277 (1-2), pp. 9-20. The final version is available from http://www.sciencedirect.com/science/journal/0012821X. Doi: doi:10.1016/j.epsl.2008.09.030 |
op_doi |
https://doi.org/10.1016/j.epsl.2008.09.030 |
container_title |
Earth and Planetary Science Letters |
container_volume |
277 |
container_issue |
1-2 |
container_start_page |
9 |
op_container_end_page |
20 |
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1766215003621294080 |