Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole
We studied the biological response to orbital forcing in marine Upper Albian sediments recovered from the 245 m-long Kirchrode I borehole in the Lower Saxony basin in northwestern Germany. Results from quantitative analysis of planktonic and benthic foraminifera, of calcareous nannofossils, and radi...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.779642 2023-05-15T15:17:30+02:00 Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole Weber, Michael E Fenner, Juliane M Thies, Andrea Cepek, Pavel LATITUDE: 52.372500 * LONGITUDE: 9.831200 * DATE/TIME START: 1991-11-18T00:00:00 * DATE/TIME END: 1991-12-17T00:00:00 2001-04-20 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.779642 https://doi.org/10.1594/PANGAEA.779642 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.779642 https://doi.org/10.1594/PANGAEA.779642 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Weber, Michael E; Fenner, Juliane M; Thies, Andrea; Cepek, Pavel (2001): Biological response to Milankovitch forcing during the Late Albian (Kirchrode I borehole, northwestern Germany). Palaeogeography, Palaeoclimatology, Palaeoecology, 174(1-3), 269-286, https://doi.org/10.1016/S0031-0182(01)00297-8 DRILL Drilling/drill rig Kirchrode_I Lower Saxony Germany Dataset 2001 ftpangaea https://doi.org/10.1594/PANGAEA.779642 https://doi.org/10.1016/S0031-0182(01)00297-8 2023-01-20T07:32:30Z We studied the biological response to orbital forcing in marine Upper Albian sediments recovered from the 245 m-long Kirchrode I borehole in the Lower Saxony basin in northwestern Germany. Results from quantitative analysis of planktonic and benthic foraminifera, of calcareous nannofossils, and radiolaria were used for this study. Spectral analysis in the depth domain indicates for the high sedimentation rate part of the Upper Albian dominant periods with wavelengths of 10±13 m, 5±6 m, and 2±3 m, which we interpret to represent the biological response to orbital forcing in the Milankovitch frequency bands eccentricity, obliquity, and precession, respectively. In addition, a low amplitude 40±50 m cycle was found, which would represent the long-term eccentricity variation of roughly 400 ka. Microfossil cyclicity does not change significantly within the whole core indicating sedimentation rates of 11±12 cm/ka on an average, with variations between 3.5 and 13 ka. Microfossils show greater variability in their abundance changes than the physical and chemical parameters and also greater power in the higher-frequency bands (obliquity and precession). While most of the planktonic foraminifer species studied are dominated by variations in the obliquity, most benthic foraminifer species show an additional strong influence of precession. These differences in the cyclicity of the abundance changes are interpreted as reflecting a stronger influence of low latitude water in the deep waters of the Late Albian Lower Saxony basin than in the shallow waters. This basin was part of a wide, 'Boreal' epicontinental sea, which was connected to the Tethys to the south via the Polish strait and via the Paris basin, and which was connected with the North Atlantic and Arctic to the north. In analogy to results from analysis of data from the Late Neogene, strong effects of precession interpreted as being more characteristic for changes/influences triggered in the low latitudes and those of obliquity to be more characteristic for ... Dataset Arctic Foraminifera* North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Arctic ENVELOPE(9.831200,9.831200,52.372500,52.372500) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DRILL Drilling/drill rig Kirchrode_I Lower Saxony Germany |
spellingShingle |
DRILL Drilling/drill rig Kirchrode_I Lower Saxony Germany Weber, Michael E Fenner, Juliane M Thies, Andrea Cepek, Pavel Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
topic_facet |
DRILL Drilling/drill rig Kirchrode_I Lower Saxony Germany |
description |
We studied the biological response to orbital forcing in marine Upper Albian sediments recovered from the 245 m-long Kirchrode I borehole in the Lower Saxony basin in northwestern Germany. Results from quantitative analysis of planktonic and benthic foraminifera, of calcareous nannofossils, and radiolaria were used for this study. Spectral analysis in the depth domain indicates for the high sedimentation rate part of the Upper Albian dominant periods with wavelengths of 10±13 m, 5±6 m, and 2±3 m, which we interpret to represent the biological response to orbital forcing in the Milankovitch frequency bands eccentricity, obliquity, and precession, respectively. In addition, a low amplitude 40±50 m cycle was found, which would represent the long-term eccentricity variation of roughly 400 ka. Microfossil cyclicity does not change significantly within the whole core indicating sedimentation rates of 11±12 cm/ka on an average, with variations between 3.5 and 13 ka. Microfossils show greater variability in their abundance changes than the physical and chemical parameters and also greater power in the higher-frequency bands (obliquity and precession). While most of the planktonic foraminifer species studied are dominated by variations in the obliquity, most benthic foraminifer species show an additional strong influence of precession. These differences in the cyclicity of the abundance changes are interpreted as reflecting a stronger influence of low latitude water in the deep waters of the Late Albian Lower Saxony basin than in the shallow waters. This basin was part of a wide, 'Boreal' epicontinental sea, which was connected to the Tethys to the south via the Polish strait and via the Paris basin, and which was connected with the North Atlantic and Arctic to the north. In analogy to results from analysis of data from the Late Neogene, strong effects of precession interpreted as being more characteristic for changes/influences triggered in the low latitudes and those of obliquity to be more characteristic for ... |
format |
Dataset |
author |
Weber, Michael E Fenner, Juliane M Thies, Andrea Cepek, Pavel |
author_facet |
Weber, Michael E Fenner, Juliane M Thies, Andrea Cepek, Pavel |
author_sort |
Weber, Michael E |
title |
Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
title_short |
Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
title_full |
Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
title_fullStr |
Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
title_full_unstemmed |
Microfossil cyclicity in Late Albian sediments of Kirchrode I borehole |
title_sort |
microfossil cyclicity in late albian sediments of kirchrode i borehole |
publisher |
PANGAEA |
publishDate |
2001 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.779642 https://doi.org/10.1594/PANGAEA.779642 |
op_coverage |
LATITUDE: 52.372500 * LONGITUDE: 9.831200 * DATE/TIME START: 1991-11-18T00:00:00 * DATE/TIME END: 1991-12-17T00:00:00 |
long_lat |
ENVELOPE(9.831200,9.831200,52.372500,52.372500) |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Foraminifera* North Atlantic |
genre_facet |
Arctic Foraminifera* North Atlantic |
op_source |
Supplement to: Weber, Michael E; Fenner, Juliane M; Thies, Andrea; Cepek, Pavel (2001): Biological response to Milankovitch forcing during the Late Albian (Kirchrode I borehole, northwestern Germany). Palaeogeography, Palaeoclimatology, Palaeoecology, 174(1-3), 269-286, https://doi.org/10.1016/S0031-0182(01)00297-8 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.779642 https://doi.org/10.1594/PANGAEA.779642 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.779642 https://doi.org/10.1016/S0031-0182(01)00297-8 |
_version_ |
1766347745934704640 |