Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea)
In order to study recent sedimentation rates in the Eastern GotlandBasin, 52 short sediment corescollected fromthe deepest part (< 150 m) of the Basin in 2003were investigated.The upperparts of all the cores were distinctly laminated and dark incolour, followed by a homogeneous, greyish l...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2006-06-01
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| Series: | Oceanologia |
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| Online Access: | http://www.iopan.gda.pl/oceanologia/48_2.html#A8 |
| _version_ | 1811272995091513344 |
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| author | Sven Hille Thomas Leipe Torsten Seifert |
| author_facet | Sven Hille Thomas Leipe Torsten Seifert |
| author_sort | Sven Hille |
| collection | DOAJ |
| description | In order to study recent sedimentation rates in the Eastern GotlandBasin, 52 short sediment corescollected fromthe deepest part (< 150 m) of the Basin in 2003were investigated.The upperparts of all the cores were distinctly laminated and dark incolour, followed by a homogeneous, greyish lower part. The thicknessof the laminated sequences varied from 17 to 300 mm. <sup>210</sup>Pb datinganalyses of selected cores revealed that the change from non-laminatedto laminated sediments happened about 100 years ago, indicatinga shift from predominantly oxic bottom water conditions to anoxicconditions. Used as a time marker, this shift in the sedimenttexture enabled sediment accumulation rates to be estimated forall sediment cores. The observed mean linear sedimentation ratefor the whole basin was 0.93 ± 0.67 mm y<sup>-1</sup>. The respectivebulk sediment accumulation rates ranged from 10.5 to 527 g m<sup>-2</sup> yr<sup>-1</sup>with an average of 129 ± 112 g m<sup>-2</sup> yr<sup>-1</sup>, indicatinga high spatial variability of sedimentation rates within thebasin. This agrees very well with the long-term sedimentationpattern since the Litorina transgression. The observed patternclearly reflects the hydrographic conditions at the seaflooras studied by modelled near-bottom current velocities.</font> |
| first_indexed | 2024-04-12T22:51:17Z |
| format | Article |
| id | doaj.art-78e26b04ba1948c2b1859fc3fa8eae89 |
| institution | Directory Open Access Journal |
| issn | 0078-3234 |
| language | English |
| last_indexed | 2024-04-12T22:51:17Z |
| publishDate | 2006-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Oceanologia |
| spelling | doaj.art-78e26b04ba1948c2b1859fc3fa8eae892022-12-22T03:13:20ZengElsevierOceanologia0078-32342006-06-01482297317Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea)Sven HilleThomas LeipeTorsten SeifertIn order to study recent sedimentation rates in the Eastern GotlandBasin, 52 short sediment corescollected fromthe deepest part (< 150 m) of the Basin in 2003were investigated.The upperparts of all the cores were distinctly laminated and dark incolour, followed by a homogeneous, greyish lower part. The thicknessof the laminated sequences varied from 17 to 300 mm. <sup>210</sup>Pb datinganalyses of selected cores revealed that the change from non-laminatedto laminated sediments happened about 100 years ago, indicatinga shift from predominantly oxic bottom water conditions to anoxicconditions. Used as a time marker, this shift in the sedimenttexture enabled sediment accumulation rates to be estimated forall sediment cores. The observed mean linear sedimentation ratefor the whole basin was 0.93 ± 0.67 mm y<sup>-1</sup>. The respectivebulk sediment accumulation rates ranged from 10.5 to 527 g m<sup>-2</sup> yr<sup>-1</sup>with an average of 129 ± 112 g m<sup>-2</sup> yr<sup>-1</sup>, indicatinga high spatial variability of sedimentation rates within thebasin. This agrees very well with the long-term sedimentationpattern since the Litorina transgression. The observed patternclearly reflects the hydrographic conditions at the seaflooras studied by modelled near-bottom current velocities.</font>http://www.iopan.gda.pl/oceanologia/48_2.html#A8Baltic SeaGotland BasinSediment accumulationHydrography |
| spellingShingle | Sven Hille Thomas Leipe Torsten Seifert Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) Oceanologia Baltic Sea Gotland Basin Sediment accumulation Hydrography |
| title | Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) |
| title_full | Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) |
| title_fullStr | Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) |
| title_full_unstemmed | Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) |
| title_short | Spatial variability of recent sedimentation rates in the Eastern Gotland Basin (Baltic Sea) |
| title_sort | spatial variability of recent sedimentation rates in the eastern gotland basin baltic sea |
| topic | Baltic Sea Gotland Basin Sediment accumulation Hydrography |
| url | http://www.iopan.gda.pl/oceanologia/48_2.html#A8 |
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