Disrupted vegetation as a response to Jurassic volcanism in southern Sweden
Central Skåne (Scania) in southern Sweden hosts evidence of extensive Jurassic volcanism in the form of mafic volcanic plugs and associated volcaniclastic deposits that entomb well preserved macro-plant and spore–pollen assemblages. Palynological assemblages recovered from the Höör Sandstone ar...
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Naturhistoriska riksmuseet, Enheten för paleobiologi
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ftnrm:oai:DiVA.org:nrm-1906 2024-09-09T19:26:53+00:00 Disrupted vegetation as a response to Jurassic volcanism in southern Sweden Vajda, Vivi Linderson, Hans McLoughlin, Stephen 2016 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1906 https://doi.org/10.1144/SP434.17 eng eng Naturhistoriska riksmuseet, Enheten för paleobiologi Department of Geology, Lund University, Sweden Geology Department, University of Lund Geological Society of London Geological Society of London Special Publications, ISSN 0305-8719, 2016, 434, s. 127-147 orcid:0000-0003-2987-5559 orcid:0000-0001-6723-239X http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1906 doi:doi.org/10.1144/SP434.17 info:eu-repo/semantics/openAccess Volcanism palaeoclimate palynology fossil wood Skåne Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Article in journal info:eu-repo/semantics/article text 2016 ftnrm https://doi.org/10.1144/SP434.17 2024-07-05T03:00:55Z Central Skåne (Scania) in southern Sweden hosts evidence of extensive Jurassic volcanism in the form of mafic volcanic plugs and associated volcaniclastic deposits that entomb well preserved macro-plant and spore–pollen assemblages. Palynological assemblages recovered from the Höör Sandstone are of Hettangian–Pliensbachian age and those from the overlying lahar deposits are dated as Pliensbachian–early Toarcian (?). Palynomorph assemblages from these units reveal significantly different ecosystems, particularly with respect to the gymnospermous components that represented the main canopy plants. Both palynofloras are dominated by osmundacean, marattiacean and cyatheacean fern spore taxa but, whereas the Höör Sandstone hosts abundant Chasmatosporites spp. pollen produced by plants related to cycadophytes, the volcanogenic deposits are dominated by cypress family pollen (Perinopollenites) with an understorey component rich in putative Erdtmanithecales (or possibly Gnetales), and collectively representing vegetation of disturbed habitats. Permineralized conifer wood attributed to Protophyllocladoxylon sp., belonging to plants that probably produced the abundant Perinopollenites grains, is abundant in the volcanigenic strata, and shows sporadic intraseasonal and multi-year episodes of growth disruption. Together with the relatively narrow but marked annual growth rings, and the annual and mean sensitivity values that span the complacent–sensitive domains, these features suggest growth within Mediterranean-type biomes subject to episodic disturbance. Part of the special issue Mesozoic Biotas of Scandinavia and its Arctic Territories edited by: Kear, B. P., Lindgren, J., Hurum, J. H., Milà n, J. & Vajda, V. Article in Journal/Newspaper Arctic Swedish Museum of Natural History: Publications (DiVA) Arctic Geological Society, London, Special Publications 434 1 127 147 |
institution |
Open Polar |
collection |
Swedish Museum of Natural History: Publications (DiVA) |
op_collection_id |
ftnrm |
language |
English |
topic |
Volcanism palaeoclimate palynology fossil wood Skåne Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
spellingShingle |
Volcanism palaeoclimate palynology fossil wood Skåne Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap Vajda, Vivi Linderson, Hans McLoughlin, Stephen Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
topic_facet |
Volcanism palaeoclimate palynology fossil wood Skåne Other Earth and Related Environmental Sciences Annan geovetenskap och miljövetenskap |
description |
Central Skåne (Scania) in southern Sweden hosts evidence of extensive Jurassic volcanism in the form of mafic volcanic plugs and associated volcaniclastic deposits that entomb well preserved macro-plant and spore–pollen assemblages. Palynological assemblages recovered from the Höör Sandstone are of Hettangian–Pliensbachian age and those from the overlying lahar deposits are dated as Pliensbachian–early Toarcian (?). Palynomorph assemblages from these units reveal significantly different ecosystems, particularly with respect to the gymnospermous components that represented the main canopy plants. Both palynofloras are dominated by osmundacean, marattiacean and cyatheacean fern spore taxa but, whereas the Höör Sandstone hosts abundant Chasmatosporites spp. pollen produced by plants related to cycadophytes, the volcanogenic deposits are dominated by cypress family pollen (Perinopollenites) with an understorey component rich in putative Erdtmanithecales (or possibly Gnetales), and collectively representing vegetation of disturbed habitats. Permineralized conifer wood attributed to Protophyllocladoxylon sp., belonging to plants that probably produced the abundant Perinopollenites grains, is abundant in the volcanigenic strata, and shows sporadic intraseasonal and multi-year episodes of growth disruption. Together with the relatively narrow but marked annual growth rings, and the annual and mean sensitivity values that span the complacent–sensitive domains, these features suggest growth within Mediterranean-type biomes subject to episodic disturbance. Part of the special issue Mesozoic Biotas of Scandinavia and its Arctic Territories edited by: Kear, B. P., Lindgren, J., Hurum, J. H., Milà n, J. & Vajda, V. |
format |
Article in Journal/Newspaper |
author |
Vajda, Vivi Linderson, Hans McLoughlin, Stephen |
author_facet |
Vajda, Vivi Linderson, Hans McLoughlin, Stephen |
author_sort |
Vajda, Vivi |
title |
Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
title_short |
Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
title_full |
Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
title_fullStr |
Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
title_full_unstemmed |
Disrupted vegetation as a response to Jurassic volcanism in southern Sweden |
title_sort |
disrupted vegetation as a response to jurassic volcanism in southern sweden |
publisher |
Naturhistoriska riksmuseet, Enheten för paleobiologi |
publishDate |
2016 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1906 https://doi.org/10.1144/SP434.17 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
Geological Society of London Special Publications, ISSN 0305-8719, 2016, 434, s. 127-147 orcid:0000-0003-2987-5559 orcid:0000-0001-6723-239X http://urn.kb.se/resolve?urn=urn:nbn:se:nrm:diva-1906 doi:doi.org/10.1144/SP434.17 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1144/SP434.17 |
container_title |
Geological Society, London, Special Publications |
container_volume |
434 |
container_issue |
1 |
container_start_page |
127 |
op_container_end_page |
147 |
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1809896418514567168 |