Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark
Two exposures in Jylland, Denmark, encompassing beds of latest Oligocene to earliest Miocene age (latest Chattian-early Aquitanian) yielded well-preserved palynofloras. The assemblages indicate that Jylland was covered by extensive Taxodiaceae swamp forests in the mid-Cenozoic. Besides a Taxodiaceae...
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ftulundlup:oai:lup.lub.lu.se:1914e064-1d50-41a7-9d68-d40b95a58c9b 2023-05-15T13:35:29+02:00 Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark Larsson, Linda Vajda, Vivi Dybkjaer, Karen 2010 https://lup.lub.lu.se/record/1587923 https://doi.org/10.1016/j.revpalbo.2009.12.002 eng eng Elsevier https://lup.lub.lu.se/record/1587923 http://dx.doi.org/10.1016/j.revpalbo.2009.12.002 wos:000275688400003 scopus:76349113802 Review of Palaeobotany and Palynology; 159(3-4), pp 166-176 (2010) ISSN: 0034-6667 Geology Denmark palynoflora palaeobotany climate change Miocene Oligocene miospores pollen contributiontojournal/article info:eu-repo/semantics/article text 2010 ftulundlup https://doi.org/10.1016/j.revpalbo.2009.12.002 2023-02-01T23:35:21Z Two exposures in Jylland, Denmark, encompassing beds of latest Oligocene to earliest Miocene age (latest Chattian-early Aquitanian) yielded well-preserved palynofloras. The assemblages indicate that Jylland was covered by extensive Taxodiaceae swamp forests in the mid-Cenozoic. Besides a Taxodiaceae-Cupressaceae association, which was overwhelmingly dominant, other common plants in this habitat were Alnus, Nyssa, Betula, Salix, Cyrilla and Myrica. Most of the trees and shrubs are well adapted to swamps and thrive under more or less flooded conditions in modern bald cypress swamps of the southeastern North America. Vegetation composition indicates that a warm-temperate climate prevailed in Denmark during the Oligocene-Miocene transition. According to calculations using the Coexistence Approach, the mean annual temperature during this time span ranged from 15.6 to 16.6 degrees C. An increase to 16.5-21.1 degrees C is inferred from the palynoflora in the upper part of the section. The earlier, cooler period possibly reflects global cooling associated with the Mi-1 glaciation event at the Oligocene-Miocene boundary. No data from the very coldest part of the Mi-I event has been recorded, as this is represented by a gravel layer (representing a hiatus) in the lowermost part of the studied succession. The length of the missing time is not known precisely, but is probably in the order of some hundred thousand years. Correlation with the well-established chronostratigraphic and sequence stratigraphic framework for the studied succession reveals that the most distinctive change in palynoflora probably reflects a shift in depositional facies (due to an increase in sea level) rather than direct climatic change. The sea-level rise is herein interpreted to be eustatic and related to melting of Antarctic ice caps at the end of the Mi-1 glaciation event. (C) 2010 Elsevier B.V. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic Lund University Publications (LUP) Antarctic Jylland ENVELOPE(8.537,8.537,62.760,62.760) Review of Palaeobotany and Palynology 159 3-4 166 176 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Denmark palynoflora palaeobotany climate change Miocene Oligocene miospores pollen |
spellingShingle |
Geology Denmark palynoflora palaeobotany climate change Miocene Oligocene miospores pollen Larsson, Linda Vajda, Vivi Dybkjaer, Karen Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
topic_facet |
Geology Denmark palynoflora palaeobotany climate change Miocene Oligocene miospores pollen |
description |
Two exposures in Jylland, Denmark, encompassing beds of latest Oligocene to earliest Miocene age (latest Chattian-early Aquitanian) yielded well-preserved palynofloras. The assemblages indicate that Jylland was covered by extensive Taxodiaceae swamp forests in the mid-Cenozoic. Besides a Taxodiaceae-Cupressaceae association, which was overwhelmingly dominant, other common plants in this habitat were Alnus, Nyssa, Betula, Salix, Cyrilla and Myrica. Most of the trees and shrubs are well adapted to swamps and thrive under more or less flooded conditions in modern bald cypress swamps of the southeastern North America. Vegetation composition indicates that a warm-temperate climate prevailed in Denmark during the Oligocene-Miocene transition. According to calculations using the Coexistence Approach, the mean annual temperature during this time span ranged from 15.6 to 16.6 degrees C. An increase to 16.5-21.1 degrees C is inferred from the palynoflora in the upper part of the section. The earlier, cooler period possibly reflects global cooling associated with the Mi-1 glaciation event at the Oligocene-Miocene boundary. No data from the very coldest part of the Mi-I event has been recorded, as this is represented by a gravel layer (representing a hiatus) in the lowermost part of the studied succession. The length of the missing time is not known precisely, but is probably in the order of some hundred thousand years. Correlation with the well-established chronostratigraphic and sequence stratigraphic framework for the studied succession reveals that the most distinctive change in palynoflora probably reflects a shift in depositional facies (due to an increase in sea level) rather than direct climatic change. The sea-level rise is herein interpreted to be eustatic and related to melting of Antarctic ice caps at the end of the Mi-1 glaciation event. (C) 2010 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Larsson, Linda Vajda, Vivi Dybkjaer, Karen |
author_facet |
Larsson, Linda Vajda, Vivi Dybkjaer, Karen |
author_sort |
Larsson, Linda |
title |
Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
title_short |
Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
title_full |
Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
title_fullStr |
Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
title_full_unstemmed |
Vegetation and climate in the latest Oligocene-earliest Miocene in Jylland, Denmark |
title_sort |
vegetation and climate in the latest oligocene-earliest miocene in jylland, denmark |
publisher |
Elsevier |
publishDate |
2010 |
url |
https://lup.lub.lu.se/record/1587923 https://doi.org/10.1016/j.revpalbo.2009.12.002 |
long_lat |
ENVELOPE(8.537,8.537,62.760,62.760) |
geographic |
Antarctic Jylland |
geographic_facet |
Antarctic Jylland |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Review of Palaeobotany and Palynology; 159(3-4), pp 166-176 (2010) ISSN: 0034-6667 |
op_relation |
https://lup.lub.lu.se/record/1587923 http://dx.doi.org/10.1016/j.revpalbo.2009.12.002 wos:000275688400003 scopus:76349113802 |
op_doi |
https://doi.org/10.1016/j.revpalbo.2009.12.002 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
159 |
container_issue |
3-4 |
container_start_page |
166 |
op_container_end_page |
176 |
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1766066193026777088 |