Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard
Significant changes in global climate and carbon cycling occurred during the Early Cretaceous. This study examines the expression of such climatic events in high-latitude Svalbard together with the stratigraphic utility of carbon-isotope stratigraphies. Isotopic analysis of fossil wood fragments (fr...
Published in: | Geosphere |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | https://curis.ku.dk/portal/da/publications/stratigraphic-and-geochemical-expression-of-barremianaptian-global-climate-change-in-arctic-svalbard(388d39be-24ab-46d2-9ac2-70b164d4fce3).html https://doi.org/10.1130/GES01344.1 https://curis.ku.dk/ws/files/226913619/Stratigraphic_and_geochemical_expression_of_Barremian_Aptian_global_climate_change_in_Arctic_Svalbard.pdf |
id |
ftcopenhagenunip:oai:pure.atira.dk:publications/388d39be-24ab-46d2-9ac2-70b164d4fce3 |
---|---|
record_format |
openpolar |
spelling |
ftcopenhagenunip:oai:pure.atira.dk:publications/388d39be-24ab-46d2-9ac2-70b164d4fce3 2024-04-21T07:53:32+00:00 Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard Vickers, Madeleine Price, Gregory D. Jerrett, Rhodri Watkinson, Matthew 2016 application/pdf https://curis.ku.dk/portal/da/publications/stratigraphic-and-geochemical-expression-of-barremianaptian-global-climate-change-in-arctic-svalbard(388d39be-24ab-46d2-9ac2-70b164d4fce3).html https://doi.org/10.1130/GES01344.1 https://curis.ku.dk/ws/files/226913619/Stratigraphic_and_geochemical_expression_of_Barremian_Aptian_global_climate_change_in_Arctic_Svalbard.pdf eng eng info:eu-repo/semantics/openAccess Vickers , M , Price , G D , Jerrett , R & Watkinson , M 2016 , ' Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard ' , Geosphere , vol. 12 , no. 5 , pp. 1594-1605 . https://doi.org/10.1130/GES01344.1 article 2016 ftcopenhagenunip https://doi.org/10.1130/GES01344.1 2024-03-28T01:21:44Z Significant changes in global climate and carbon cycling occurred during the Early Cretaceous. This study examines the expression of such climatic events in high-latitude Svalbard together with the stratigraphic utility of carbon-isotope stratigraphies. Isotopic analysis of fossil wood fragments (from the Rurikfjellet, Helvetiafjellet, and Carolinefjellet formations, Festningen, Spitsbergen) record a distinctive pattern including a negative isotope excursion preceding a positive event, correlatable with the global early Aptian isotope event. Our carbon-isotope profile improves the stratigraphic correlation and relative dating of the succession. We show that the upper part of the Helvetiafjellet Formation was deposited during the early Aptian, and not the late Barremian, as previously thought. Furthermore, we estimate an age for the abrupt contact of the Rurikfjellet Formation with the overlying Helvetiafjellet Formation (associated with a pulse of igneous activity) to be ca. 129 Ma or ca. 124 Ma, depending on which age model for the Early Cretaceous is used. The well-known dinosaur footprints of the Helvetiafjellet Formation at Festningen are constrained to the middle Barremian and, coupled with floral data, support a warm late Barremian prior to the Aptian carbon-isotope event. The appearance of glendonites at 655 m in the Carolinefjellet Formation is consistent with global cooling in the late Aptian–early Albian. Article in Journal/Newspaper Arctic Climate change Svalbard Spitsbergen University of Copenhagen: Research Geosphere 12 5 1594 1605 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
Significant changes in global climate and carbon cycling occurred during the Early Cretaceous. This study examines the expression of such climatic events in high-latitude Svalbard together with the stratigraphic utility of carbon-isotope stratigraphies. Isotopic analysis of fossil wood fragments (from the Rurikfjellet, Helvetiafjellet, and Carolinefjellet formations, Festningen, Spitsbergen) record a distinctive pattern including a negative isotope excursion preceding a positive event, correlatable with the global early Aptian isotope event. Our carbon-isotope profile improves the stratigraphic correlation and relative dating of the succession. We show that the upper part of the Helvetiafjellet Formation was deposited during the early Aptian, and not the late Barremian, as previously thought. Furthermore, we estimate an age for the abrupt contact of the Rurikfjellet Formation with the overlying Helvetiafjellet Formation (associated with a pulse of igneous activity) to be ca. 129 Ma or ca. 124 Ma, depending on which age model for the Early Cretaceous is used. The well-known dinosaur footprints of the Helvetiafjellet Formation at Festningen are constrained to the middle Barremian and, coupled with floral data, support a warm late Barremian prior to the Aptian carbon-isotope event. The appearance of glendonites at 655 m in the Carolinefjellet Formation is consistent with global cooling in the late Aptian–early Albian. |
format |
Article in Journal/Newspaper |
author |
Vickers, Madeleine Price, Gregory D. Jerrett, Rhodri Watkinson, Matthew |
spellingShingle |
Vickers, Madeleine Price, Gregory D. Jerrett, Rhodri Watkinson, Matthew Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
author_facet |
Vickers, Madeleine Price, Gregory D. Jerrett, Rhodri Watkinson, Matthew |
author_sort |
Vickers, Madeleine |
title |
Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
title_short |
Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
title_full |
Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
title_fullStr |
Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
title_full_unstemmed |
Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard |
title_sort |
stratigraphic and geochemical expression of barremian–aptian global climate change in arctic svalbard |
publishDate |
2016 |
url |
https://curis.ku.dk/portal/da/publications/stratigraphic-and-geochemical-expression-of-barremianaptian-global-climate-change-in-arctic-svalbard(388d39be-24ab-46d2-9ac2-70b164d4fce3).html https://doi.org/10.1130/GES01344.1 https://curis.ku.dk/ws/files/226913619/Stratigraphic_and_geochemical_expression_of_Barremian_Aptian_global_climate_change_in_Arctic_Svalbard.pdf |
genre |
Arctic Climate change Svalbard Spitsbergen |
genre_facet |
Arctic Climate change Svalbard Spitsbergen |
op_source |
Vickers , M , Price , G D , Jerrett , R & Watkinson , M 2016 , ' Stratigraphic and geochemical expression of Barremian–Aptian global climate change in Arctic Svalbard ' , Geosphere , vol. 12 , no. 5 , pp. 1594-1605 . https://doi.org/10.1130/GES01344.1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1130/GES01344.1 |
container_title |
Geosphere |
container_volume |
12 |
container_issue |
5 |
container_start_page |
1594 |
op_container_end_page |
1605 |
_version_ |
1796936624662118400 |