Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea
Revised core data from Ocean Drilling Program (ODP Leg 151, Hole 909C) and preglacial paleorelief and bathymetric reconstructions in the Barents Sea and the Arctic gateway region indicate that large-scale glaciations were already developed in the northern Barents Sea during the Middle Miocene Climat...
Published in: | Geochemistry, Geophysics, Geosystems |
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ftqueensland:oai:eprints.qut.edu.au:234233 2024-02-04T09:56:25+01:00 Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea Knies, Jochen Gaina, Carmen 2008-02 https://eprints.qut.edu.au/234233/ unknown Wiley-Blackwell doi:10.1029/2007GC001824 Knies, Jochen & Gaina, Carmen (2008) Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea. Geochemistry, Geophysics, Geosystems, 9(2), Article number: Q02015. https://eprints.qut.edu.au/234233/ 2008 by the American Geophysical Union This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Geochemistry, Geophysics, Geosystems Arctic Ocean Contribution to Journal 2008 ftqueensland https://doi.org/10.1029/2007GC001824 2024-01-09T00:09:21Z Revised core data from Ocean Drilling Program (ODP Leg 151, Hole 909C) and preglacial paleorelief and bathymetric reconstructions in the Barents Sea and the Arctic gateway region indicate that large-scale glaciations were already developed in the northern Barents Sea during the Middle Miocene Climate Transition (MMCT), ∼15 - 14 million years ago. Our findings show that subsequent to an ice-free period during the Miocene Climate Optimum (MCO, ∼17 - 15 Ma), glacially eroded materials from the uplifted northern Barents Sea were transported by iceberg flotillas toward the Fram Strait. The simultaneous opening of the North Atlantic-Arctic gateway provided pathways for iceberg transport from the north. The expansive ice growth is probably induced by both large-scale changes in ocean circulation due to enhanced flow of Atlantic water into the Arctic Ocean during opening of the gateway and concurrent global cooling during the MMCT. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Barents Sea Fram Strait Ice Sheet Iceberg* North Atlantic Queensland University of Technology: QUT ePrints Arctic Arctic Ocean Barents Sea Geochemistry, Geophysics, Geosystems 9 2 n/a n/a |
institution |
Open Polar |
collection |
Queensland University of Technology: QUT ePrints |
op_collection_id |
ftqueensland |
language |
unknown |
topic |
Arctic Ocean |
spellingShingle |
Arctic Ocean Knies, Jochen Gaina, Carmen Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
topic_facet |
Arctic Ocean |
description |
Revised core data from Ocean Drilling Program (ODP Leg 151, Hole 909C) and preglacial paleorelief and bathymetric reconstructions in the Barents Sea and the Arctic gateway region indicate that large-scale glaciations were already developed in the northern Barents Sea during the Middle Miocene Climate Transition (MMCT), ∼15 - 14 million years ago. Our findings show that subsequent to an ice-free period during the Miocene Climate Optimum (MCO, ∼17 - 15 Ma), glacially eroded materials from the uplifted northern Barents Sea were transported by iceberg flotillas toward the Fram Strait. The simultaneous opening of the North Atlantic-Arctic gateway provided pathways for iceberg transport from the north. The expansive ice growth is probably induced by both large-scale changes in ocean circulation due to enhanced flow of Atlantic water into the Arctic Ocean during opening of the gateway and concurrent global cooling during the MMCT. |
format |
Article in Journal/Newspaper |
author |
Knies, Jochen Gaina, Carmen |
author_facet |
Knies, Jochen Gaina, Carmen |
author_sort |
Knies, Jochen |
title |
Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
title_short |
Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
title_full |
Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
title_fullStr |
Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
title_full_unstemmed |
Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea |
title_sort |
middle miocene ice sheet expansion in the arctic: views from the barents sea |
publisher |
Wiley-Blackwell |
publishDate |
2008 |
url |
https://eprints.qut.edu.au/234233/ |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Barents Sea Fram Strait Ice Sheet Iceberg* North Atlantic |
genre_facet |
Arctic Arctic Arctic Ocean Atlantic Arctic Atlantic-Arctic Barents Sea Fram Strait Ice Sheet Iceberg* North Atlantic |
op_source |
Geochemistry, Geophysics, Geosystems |
op_relation |
doi:10.1029/2007GC001824 Knies, Jochen & Gaina, Carmen (2008) Middle Miocene ice sheet expansion in the Arctic: Views from the Barents Sea. Geochemistry, Geophysics, Geosystems, 9(2), Article number: Q02015. https://eprints.qut.edu.au/234233/ |
op_rights |
2008 by the American Geophysical Union This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au |
op_doi |
https://doi.org/10.1029/2007GC001824 |
container_title |
Geochemistry, Geophysics, Geosystems |
container_volume |
9 |
container_issue |
2 |
container_start_page |
n/a |
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n/a |
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1789960936767881216 |