A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform)
High-resolution carbon isotope records of organic carbon (δ13Corg) across the Permian–Triassic boundary (PTB) from the expanded sections of the Trøndelag and Finnmark platforms in Norway demonstrate that the negative carbon isotope excursion around the PTB begins with a stepwise 8‰ negative decline...
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Online Access: | https://www.zora.uzh.ch/id/eprint/42509/ https://www.zora.uzh.ch/id/eprint/42509/1/Hermann-E_2010_A_close-up_view_of_the_Permian%E2%80%93Triassic_boundary_based_on_expanded_organic_carbon_isotope_records_from_Norway_Trondelag_and_Finnmark_Platform_Hochuli-PA_Bucher-H_APIM_HERM-E_2010-2.pdf https://doi.org/10.5167/uzh-42509 https://doi.org/10.1016/j.gloplacha.2010.10.007 |
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ftunivzuerich:oai:www.zora.uzh.ch:42509 2024-10-06T13:48:37+00:00 A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) Hermann, E Hochuli, P A Bucher, H Vigran, J O Weissert, H Bernasconi, S M 2010 application/pdf https://www.zora.uzh.ch/id/eprint/42509/ https://www.zora.uzh.ch/id/eprint/42509/1/Hermann-E_2010_A_close-up_view_of_the_Permian%E2%80%93Triassic_boundary_based_on_expanded_organic_carbon_isotope_records_from_Norway_Trondelag_and_Finnmark_Platform_Hochuli-PA_Bucher-H_APIM_HERM-E_2010-2.pdf https://doi.org/10.5167/uzh-42509 https://doi.org/10.1016/j.gloplacha.2010.10.007 eng eng Elsevier https://www.zora.uzh.ch/id/eprint/42509/1/Hermann-E_2010_A_close-up_view_of_the_Permian%E2%80%93Triassic_boundary_based_on_expanded_organic_carbon_isotope_records_from_Norway_Trondelag_and_Finnmark_Platform_Hochuli-PA_Bucher-H_APIM_HERM-E_2010-2.pdf doi:10.5167/uzh-42509 doi:10.1016/j.gloplacha.2010.10.007 urn:issn:0921-8181 info:eu-repo/semantics/closedAccess Hermann, E; Hochuli, P A; Bucher, H; Vigran, J O; Weissert, H; Bernasconi, S M (2010). A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform). Global and Planetary Change, 74:156-167. Department of Paleontology 560 Fossils & prehistoric life Permian–Triassic organic carbon isotopes particulate organic matter Norway Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2010 ftunivzuerich https://doi.org/10.5167/uzh-4250910.1016/j.gloplacha.2010.10.007 2024-09-11T00:49:00Z High-resolution carbon isotope records of organic carbon (δ13Corg) across the Permian–Triassic boundary (PTB) from the expanded sections of the Trøndelag and Finnmark platforms in Norway demonstrate that the negative carbon isotope excursion around the PTB begins with a stepwise 8‰ negative decline to a first minimum. After a subsequent positive excursion, a second minimum follows in the basal Griesbachian. Particulate organic matter (POM) is dominated by terrestrial particles with changing marine contributions. Intervals with minor C-isotope fluctuations coincide with homogeneous terrestrial POM assemblages, whereas intervals with pronounced C-isotope fluctuations correspond to heterogeneous marine–terrestrial POM assemblages, suggesting that the C-isotope curve represents a global signal with superimposed local variations of carbon sources. The δ13Corg of the contributing organic carbon ranges from − 32‰ (marine organic carbon) to − 22‰ (terrestrial organic carbon). Comparison of the new record, divided into 10 chemostratigraphic intervals with other, globally distributed sections suggests the presence of gaps in several classical PTB sections. Detailed chemostratigraphic correlation reveals that the extinction of marine organisms occurred during the stepwise negative shift and the end-Permian floral turnover occurred prior to the first C-isotope minimum. The correlation also shows that the marker of the recently defined Global Stratotype Section and Point PTB occurs within a broad interval ranging from most negative δ13C values up to the subsequent isotopic increase. Article in Journal/Newspaper Finnmark Finnmark University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Norway |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Department of Paleontology 560 Fossils & prehistoric life Permian–Triassic organic carbon isotopes particulate organic matter Norway |
spellingShingle |
Department of Paleontology 560 Fossils & prehistoric life Permian–Triassic organic carbon isotopes particulate organic matter Norway Hermann, E Hochuli, P A Bucher, H Vigran, J O Weissert, H Bernasconi, S M A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
topic_facet |
Department of Paleontology 560 Fossils & prehistoric life Permian–Triassic organic carbon isotopes particulate organic matter Norway |
description |
High-resolution carbon isotope records of organic carbon (δ13Corg) across the Permian–Triassic boundary (PTB) from the expanded sections of the Trøndelag and Finnmark platforms in Norway demonstrate that the negative carbon isotope excursion around the PTB begins with a stepwise 8‰ negative decline to a first minimum. After a subsequent positive excursion, a second minimum follows in the basal Griesbachian. Particulate organic matter (POM) is dominated by terrestrial particles with changing marine contributions. Intervals with minor C-isotope fluctuations coincide with homogeneous terrestrial POM assemblages, whereas intervals with pronounced C-isotope fluctuations correspond to heterogeneous marine–terrestrial POM assemblages, suggesting that the C-isotope curve represents a global signal with superimposed local variations of carbon sources. The δ13Corg of the contributing organic carbon ranges from − 32‰ (marine organic carbon) to − 22‰ (terrestrial organic carbon). Comparison of the new record, divided into 10 chemostratigraphic intervals with other, globally distributed sections suggests the presence of gaps in several classical PTB sections. Detailed chemostratigraphic correlation reveals that the extinction of marine organisms occurred during the stepwise negative shift and the end-Permian floral turnover occurred prior to the first C-isotope minimum. The correlation also shows that the marker of the recently defined Global Stratotype Section and Point PTB occurs within a broad interval ranging from most negative δ13C values up to the subsequent isotopic increase. |
format |
Article in Journal/Newspaper |
author |
Hermann, E Hochuli, P A Bucher, H Vigran, J O Weissert, H Bernasconi, S M |
author_facet |
Hermann, E Hochuli, P A Bucher, H Vigran, J O Weissert, H Bernasconi, S M |
author_sort |
Hermann, E |
title |
A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
title_short |
A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
title_full |
A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
title_fullStr |
A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
title_full_unstemmed |
A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform) |
title_sort |
close-up view of the permian–triassic boundary based on expanded organic carbon isotope records from norway (trøndelag and finnmark platform) |
publisher |
Elsevier |
publishDate |
2010 |
url |
https://www.zora.uzh.ch/id/eprint/42509/ https://www.zora.uzh.ch/id/eprint/42509/1/Hermann-E_2010_A_close-up_view_of_the_Permian%E2%80%93Triassic_boundary_based_on_expanded_organic_carbon_isotope_records_from_Norway_Trondelag_and_Finnmark_Platform_Hochuli-PA_Bucher-H_APIM_HERM-E_2010-2.pdf https://doi.org/10.5167/uzh-42509 https://doi.org/10.1016/j.gloplacha.2010.10.007 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Finnmark Finnmark |
genre_facet |
Finnmark Finnmark |
op_source |
Hermann, E; Hochuli, P A; Bucher, H; Vigran, J O; Weissert, H; Bernasconi, S M (2010). A close-up view of the Permian–Triassic boundary based on expanded organic carbon isotope records from Norway (Trøndelag and Finnmark Platform). Global and Planetary Change, 74:156-167. |
op_relation |
https://www.zora.uzh.ch/id/eprint/42509/1/Hermann-E_2010_A_close-up_view_of_the_Permian%E2%80%93Triassic_boundary_based_on_expanded_organic_carbon_isotope_records_from_Norway_Trondelag_and_Finnmark_Platform_Hochuli-PA_Bucher-H_APIM_HERM-E_2010-2.pdf doi:10.5167/uzh-42509 doi:10.1016/j.gloplacha.2010.10.007 urn:issn:0921-8181 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.5167/uzh-4250910.1016/j.gloplacha.2010.10.007 |
_version_ |
1812176708316430336 |