A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard
Research on the Permian-Triassic boundary (PTB) along the northern margins of Pangaea (exposed today in the Arctic region) has been heavily reliant on field observations, where data resolution was consequently determined by outcrop condition and accessibility. Core drilling in central Spitsbergen al...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | http://hdl.handle.net/10852/81143 http://urn.nb.no/URN:NBN:no-84246 https://doi.org/10.1016/j.palaeo.2020.109732 |
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ftoslouniv:oai:www.duo.uio.no:10852/81143 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
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language |
English |
description |
Research on the Permian-Triassic boundary (PTB) along the northern margins of Pangaea (exposed today in the Arctic region) has been heavily reliant on field observations, where data resolution was consequently determined by outcrop condition and accessibility. Core drilling in central Spitsbergen allowed for a near-complete recovery of two ~90 m cores through the PTB. Analyses of the core and nearby outcrops include stratigraphic logging and sampling, XRF scanning, petrography, biostratigraphy, isotope geochemistry, and geochronology. The First Appearance Datum (FAD) of H. parvus in Svalbard places the base of the Triassic ca. 4 m above the base of the Vikinghøgda Formation, and ca. 2.50 m above the End-Permian Mass Extinction (EPME) and its associated sharp negative δ13C. The PTB therefore falls within the Reduviasporonites chalastus Assemblage Zone in Svalbard. Precise U-Pb TIMS dating of two zircon crystals in a tephra layer just above the first documented Hindeodus parvus in Svalbard gives an age of 252.13 ± 0.62 Ma. High-resolution palaeoenvironmental proxies, including Si/kcps (kilo counts per second), Zr/Rb, K/Ti, Fe/K, and V/Cr, indicate a transition towards a more arid climate in the earliest Triassic, contemporaneous with prolonged bottom-water dysoxic/anoxic conditions, following an increase in volcanic activity in the Late Permian. Statistical analysis of Zr/Rb, K/Ti and V/Cr elemental ratios suggests that the system was impacted by long-eccentricity (400 kyr) cyclicity. The δ13C excursion in organic carbon (δ13Corg) record signals a large negative carbon isotope excursion (CIE) associated with the mass extinction event, but also records a second, smaller negative CIE ca. 22 m above this interval. This younger δ13Corg excursion correlates to similar CIEs in the Dienerian (late Induan) records of other sections, notably in the Tethys Ocean, which have been interpreted as recording a small biotic crisis during the post-extinction recovery. Evidence of this negative CIE in Spitsbergen suggests that the Dienerian crisis may have been global in extent. The negative δ13Corg values are associated with evidence for dysoxia or anoxia in the core, and the occurrence of tephra layers in the same interval suggests a possible connection between the Dienerian crisis and a discrete episode of volcanic activity. A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
format |
Article in Journal/Newspaper |
author |
Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre |
spellingShingle |
Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
author_facet |
Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre |
author_sort |
Zuchuat, Valentin |
title |
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
title_short |
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
title_full |
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
title_fullStr |
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
title_full_unstemmed |
A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard |
title_sort |
new high-resolution stratigraphic and palaeoenvironmental record spanning the end-permian mass extinction and its aftermath in central spitsbergen, svalbard |
publishDate |
2020 |
url |
http://hdl.handle.net/10852/81143 http://urn.nb.no/URN:NBN:no-84246 https://doi.org/10.1016/j.palaeo.2020.109732 |
long_lat |
ENVELOPE(23.167,23.167,-72.067,-72.067) |
geographic |
Arctic Svalbard Vikinghøgda |
geographic_facet |
Arctic Svalbard Vikinghøgda |
genre |
Arctic Svalbard Spitsbergen |
genre_facet |
Arctic Svalbard Spitsbergen |
op_source |
0031-0182 |
op_relation |
LUNDIN/421269 NFR/223272 NFR/263000 http://urn.nb.no/URN:NBN:no-84246 Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre . A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology. 2020 http://hdl.handle.net/10852/81143 1847140 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Palaeogeography, Palaeoclimatology, Palaeoecology&rft.volume=&rft.spage=&rft.date=2020 Palaeogeography, Palaeoclimatology, Palaeoecology 554 https://doi.org/10.1016/j.palaeo.2020.109732 URN:NBN:no-84246 Fulltext https://www.duo.uio.no/bitstream/handle/10852/81143/2/Zuchuat_etal_2020_PTB_Svalbard.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.palaeo.2020.109732 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
554 |
container_start_page |
109732 |
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1766349312384565248 |
spelling |
ftoslouniv:oai:www.duo.uio.no:10852/81143 2023-05-15T15:19:08+02:00 A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre 2020-11-11T19:27:08Z http://hdl.handle.net/10852/81143 http://urn.nb.no/URN:NBN:no-84246 https://doi.org/10.1016/j.palaeo.2020.109732 EN eng LUNDIN/421269 NFR/223272 NFR/263000 http://urn.nb.no/URN:NBN:no-84246 Zuchuat, Valentin Sleveland, Arve Twitchett, Richard Svensen, Henrik Turner, Holly E Augland, Lars Eivind Jones, Morgan Thomas Hammer, Øyvind Hauksson, Bjarki Haflidason, Haflidi Midtkandal, Ivar Planke, Sverre . A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard. Palaeogeography, Palaeoclimatology, Palaeoecology. 2020 http://hdl.handle.net/10852/81143 1847140 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Palaeogeography, Palaeoclimatology, Palaeoecology&rft.volume=&rft.spage=&rft.date=2020 Palaeogeography, Palaeoclimatology, Palaeoecology 554 https://doi.org/10.1016/j.palaeo.2020.109732 URN:NBN:no-84246 Fulltext https://www.duo.uio.no/bitstream/handle/10852/81143/2/Zuchuat_etal_2020_PTB_Svalbard.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0031-0182 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2020 ftoslouniv https://doi.org/10.1016/j.palaeo.2020.109732 2020-11-25T23:30:30Z Research on the Permian-Triassic boundary (PTB) along the northern margins of Pangaea (exposed today in the Arctic region) has been heavily reliant on field observations, where data resolution was consequently determined by outcrop condition and accessibility. Core drilling in central Spitsbergen allowed for a near-complete recovery of two ~90 m cores through the PTB. Analyses of the core and nearby outcrops include stratigraphic logging and sampling, XRF scanning, petrography, biostratigraphy, isotope geochemistry, and geochronology. The First Appearance Datum (FAD) of H. parvus in Svalbard places the base of the Triassic ca. 4 m above the base of the Vikinghøgda Formation, and ca. 2.50 m above the End-Permian Mass Extinction (EPME) and its associated sharp negative δ13C. The PTB therefore falls within the Reduviasporonites chalastus Assemblage Zone in Svalbard. Precise U-Pb TIMS dating of two zircon crystals in a tephra layer just above the first documented Hindeodus parvus in Svalbard gives an age of 252.13 ± 0.62 Ma. High-resolution palaeoenvironmental proxies, including Si/kcps (kilo counts per second), Zr/Rb, K/Ti, Fe/K, and V/Cr, indicate a transition towards a more arid climate in the earliest Triassic, contemporaneous with prolonged bottom-water dysoxic/anoxic conditions, following an increase in volcanic activity in the Late Permian. Statistical analysis of Zr/Rb, K/Ti and V/Cr elemental ratios suggests that the system was impacted by long-eccentricity (400 kyr) cyclicity. The δ13C excursion in organic carbon (δ13Corg) record signals a large negative carbon isotope excursion (CIE) associated with the mass extinction event, but also records a second, smaller negative CIE ca. 22 m above this interval. This younger δ13Corg excursion correlates to similar CIEs in the Dienerian (late Induan) records of other sections, notably in the Tethys Ocean, which have been interpreted as recording a small biotic crisis during the post-extinction recovery. Evidence of this negative CIE in Spitsbergen suggests that the Dienerian crisis may have been global in extent. The negative δ13Corg values are associated with evidence for dysoxia or anoxia in the core, and the occurrence of tephra layers in the same interval suggests a possible connection between the Dienerian crisis and a discrete episode of volcanic activity. A new high-resolution stratigraphic and palaeoenvironmental record spanning the End-Permian Mass Extinction and its aftermath in central Spitsbergen, Svalbard Article in Journal/Newspaper Arctic Svalbard Spitsbergen Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Arctic Svalbard Vikinghøgda ENVELOPE(23.167,23.167,-72.067,-72.067) Palaeogeography, Palaeoclimatology, Palaeoecology 554 109732 |