Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen
Palaeoenvironmental manifestations of the Paleocene-Eocene thermal maximum (PETM; ~56Ma) are relatively well documented in low- to mid-latitude settings and at high southern latitudes, but no documented high northern latitude sites record the entire hyperthermal event. We present high-resolution mul...
Published in: | Earth and Planetary Science Letters |
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Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/65134 2024-01-14T10:03:56+01:00 Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen Harding , Ian C Charles, Adam J Marshall, John E A Palike, Heiko Roberts, Andrew Wilson, Paul A. Jarvis, Edward Thorne, Robert Morris, Emily Moremon, Rebecca Pearce, Richard B Akbari, Shir http://hdl.handle.net/1885/65134 https://doi.org/10.1016/j.epsl.2010.12.043 https://openresearch-repository.anu.edu.au/bitstream/1885/65134/5/C1-10-Sea-level_and_salinity_fluctuations_during_the.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/65134/7/01_Harding+_Sea-level_and_salinity_2011.pdf.jpg unknown Elsevier 0012-821X http://hdl.handle.net/1885/65134 doi:10.1016/j.epsl.2010.12.043 https://openresearch-repository.anu.edu.au/bitstream/1885/65134/5/C1-10-Sea-level_and_salinity_fluctuations_during_the.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/65134/7/01_Harding+_Sea-level_and_salinity_2011.pdf.jpg Earth and Planetary Science Letters Keywords: Abrupt/rapid climate change Arctic Paleoecology PETM Spitsbergen Ecology Isotopes Offshore oil wells Oxygen Sea level Sedimentology Climate change environmental change geochemistry hydrological cycle Paleocene-Eocene boundar Abrupt/rapid climate change Journal article ftanucanberra https://doi.org/10.1016/j.epsl.2010.12.043 2023-12-15T09:38:31Z Palaeoenvironmental manifestations of the Paleocene-Eocene thermal maximum (PETM; ~56Ma) are relatively well documented in low- to mid-latitude settings and at high southern latitudes, but no documented high northern latitude sites record the entire hyperthermal event. We present high-resolution multi-proxy records from a PETM succession on Spitsbergen in the high Arctic (palaeolatitude ~75°N). By comparing our results with those from Integrated Ocean Drilling Program Site 302-4A, we document regional palaeoenvironmental variations in the expression of the PETM, with evidence for major differences in basin-margin vegetation and water column oxygen depletion. Sedimentological, palynological and geochemical data demonstrate a pre-PETM sea level rise in Spitsbergen before the -4‰ δ13CTOC excursion, which culminated in maximum flooding during the peak of the event. The appearance of the dinoflagellate cyst Apectodinium before the onset of the carbon isotope excursion (CIE) corroborates that environmental change in the Arctic had begun prior to the CIE. Sedimentological and palynological evidence indicate that elevated terrestrial runoff resulted in water column stratification, providing further evidence for an intensification of the hydrological cycle during the PETM. Article in Journal/Newspaper Arctic Climate change Spitsbergen Australian National University: ANU Digital Collections Arctic Earth and Planetary Science Letters 303 1-2 97 107 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Abrupt/rapid climate change Arctic Paleoecology PETM Spitsbergen Ecology Isotopes Offshore oil wells Oxygen Sea level Sedimentology Climate change environmental change geochemistry hydrological cycle Paleocene-Eocene boundar Abrupt/rapid climate change |
spellingShingle |
Keywords: Abrupt/rapid climate change Arctic Paleoecology PETM Spitsbergen Ecology Isotopes Offshore oil wells Oxygen Sea level Sedimentology Climate change environmental change geochemistry hydrological cycle Paleocene-Eocene boundar Abrupt/rapid climate change Harding , Ian C Charles, Adam J Marshall, John E A Palike, Heiko Roberts, Andrew Wilson, Paul A. Jarvis, Edward Thorne, Robert Morris, Emily Moremon, Rebecca Pearce, Richard B Akbari, Shir Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
topic_facet |
Keywords: Abrupt/rapid climate change Arctic Paleoecology PETM Spitsbergen Ecology Isotopes Offshore oil wells Oxygen Sea level Sedimentology Climate change environmental change geochemistry hydrological cycle Paleocene-Eocene boundar Abrupt/rapid climate change |
description |
Palaeoenvironmental manifestations of the Paleocene-Eocene thermal maximum (PETM; ~56Ma) are relatively well documented in low- to mid-latitude settings and at high southern latitudes, but no documented high northern latitude sites record the entire hyperthermal event. We present high-resolution multi-proxy records from a PETM succession on Spitsbergen in the high Arctic (palaeolatitude ~75°N). By comparing our results with those from Integrated Ocean Drilling Program Site 302-4A, we document regional palaeoenvironmental variations in the expression of the PETM, with evidence for major differences in basin-margin vegetation and water column oxygen depletion. Sedimentological, palynological and geochemical data demonstrate a pre-PETM sea level rise in Spitsbergen before the -4‰ δ13CTOC excursion, which culminated in maximum flooding during the peak of the event. The appearance of the dinoflagellate cyst Apectodinium before the onset of the carbon isotope excursion (CIE) corroborates that environmental change in the Arctic had begun prior to the CIE. Sedimentological and palynological evidence indicate that elevated terrestrial runoff resulted in water column stratification, providing further evidence for an intensification of the hydrological cycle during the PETM. |
format |
Article in Journal/Newspaper |
author |
Harding , Ian C Charles, Adam J Marshall, John E A Palike, Heiko Roberts, Andrew Wilson, Paul A. Jarvis, Edward Thorne, Robert Morris, Emily Moremon, Rebecca Pearce, Richard B Akbari, Shir |
author_facet |
Harding , Ian C Charles, Adam J Marshall, John E A Palike, Heiko Roberts, Andrew Wilson, Paul A. Jarvis, Edward Thorne, Robert Morris, Emily Moremon, Rebecca Pearce, Richard B Akbari, Shir |
author_sort |
Harding , Ian C |
title |
Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
title_short |
Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
title_full |
Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
title_fullStr |
Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
title_full_unstemmed |
Sea-level and salinity fluctuations during the Paleocene-Eocene thermal maximum in Arctic Spitsbergen |
title_sort |
sea-level and salinity fluctuations during the paleocene-eocene thermal maximum in arctic spitsbergen |
publisher |
Elsevier |
url |
http://hdl.handle.net/1885/65134 https://doi.org/10.1016/j.epsl.2010.12.043 https://openresearch-repository.anu.edu.au/bitstream/1885/65134/5/C1-10-Sea-level_and_salinity_fluctuations_during_the.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/65134/7/01_Harding+_Sea-level_and_salinity_2011.pdf.jpg |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change Spitsbergen |
genre_facet |
Arctic Climate change Spitsbergen |
op_source |
Earth and Planetary Science Letters |
op_relation |
0012-821X http://hdl.handle.net/1885/65134 doi:10.1016/j.epsl.2010.12.043 https://openresearch-repository.anu.edu.au/bitstream/1885/65134/5/C1-10-Sea-level_and_salinity_fluctuations_during_the.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/65134/7/01_Harding+_Sea-level_and_salinity_2011.pdf.jpg |
op_doi |
https://doi.org/10.1016/j.epsl.2010.12.043 |
container_title |
Earth and Planetary Science Letters |
container_volume |
303 |
container_issue |
1-2 |
container_start_page |
97 |
op_container_end_page |
107 |
_version_ |
1788058588615278592 |