Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record
In this paper, we summarize data on terrigenous sediment supply in the Kara Sea and its accumulation and spatial and temporal variability during Holocene times. Sedimentological, organic-geochemical, and micropaleontological proxies determined in surface sediments allow to characterize the modern (r...
Published in: | Quaternary Science Reviews |
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Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2004
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Online Access: | https://oceanrep.geomar.de/id/eprint/27401/ https://oceanrep.geomar.de/id/eprint/27401/1/2004_Stein-etal-Arctic_QuaSciRev-23.pdf https://doi.org/10.1016/j.quascirev.2003.12.004 |
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ftoceanrep:oai:oceanrep.geomar.de:27401 2023-05-15T14:27:18+02:00 Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record Stein, Rüdiger Dittmers, Klaus Fahl, K. Kraus, M. Matthiessen, Jens Niessen, Frank Pirrung, Martina Polyakova, Yelena Schoster, F. Steinke, T. Fütterer, Dieter K. 2004 text https://oceanrep.geomar.de/id/eprint/27401/ https://oceanrep.geomar.de/id/eprint/27401/1/2004_Stein-etal-Arctic_QuaSciRev-23.pdf https://doi.org/10.1016/j.quascirev.2003.12.004 en eng Elsevier https://oceanrep.geomar.de/id/eprint/27401/1/2004_Stein-etal-Arctic_QuaSciRev-23.pdf Stein, R., Dittmers, K., Fahl, K., Kraus, M., Matthiessen, J., Niessen, F., Pirrung, M., Polyakova, Y., Schoster, F., Steinke, T. and Fütterer, D. K. (2004) Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record. Quaternary Science Reviews, 23 (11-13). pp. 1485-1511. DOI 10.1016/j.quascirev.2003.12.004 <https://doi.org/10.1016/j.quascirev.2003.12.004>. doi:10.1016/j.quascirev.2003.12.004 Article PeerReviewed 2004 ftoceanrep https://doi.org/10.1016/j.quascirev.2003.12.004 2023-04-07T15:17:31Z In this paper, we summarize data on terrigenous sediment supply in the Kara Sea and its accumulation and spatial and temporal variability during Holocene times. Sedimentological, organic-geochemical, and micropaleontological proxies determined in surface sediments allow to characterize the modern (riverine) terrigenous sediment input. AMS-14C dated sediment cores from the Ob and Yenisei estuaries and the adjacent inner Kara Sea were investigated to determine the terrigenous sediment fluxes and their relationship to paleoenvironmental changes. The variability of sediment fluxes during Holocene times is related to the post-glacial sea-level rise and changes in river discharge and coastal erosion input. Whereas during the late/middle Holocene most of the terrigenous sediments were deposited in the estuaries and the areas directly off the estuaries, huge amounts of sediments accumulated on the Kara Sea shelf farther north during the early Holocene before about 9 Cal. kyr BP. The maximum accumulation at that time is related to the lowered sea level, increased coastal erosion, and increased river discharge. Based on sediment thickness charts, echograph profiles and sediment core data, we estimate an average Holocene (0–11 Cal. kyr BP) annual accumulation of 194×106 t yr−1 of total sediment for the whole Kara Sea. Based on late Holocene (modern) sediment accumulation in the estuaries, probably 12×106 t yr−1 of riverine suspended matter (i.e., about 30% of the input) may escape the marginal filter on a geological time scale and is transported onto the open Kara Sea shelf. The high-resolution magnetic susceptibility record of a Yenisei core suggests a short-term variability in Siberian climate and river discharge on a frequency of 300–700 yr. This variability may reflect natural cyclic climate variations to be seen in context with the interannual and interdecadal environmental changes recorded in the High Northern Latitudes over the last decades, such as the NAO/AO pattern. A major decrease in MS values starting near 2.5 ... Article in Journal/Newspaper Arctic Arctic Kara Sea Magnetic susceptibility OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Kara Sea Quaternary Science Reviews 23 11-13 1485 1511 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
In this paper, we summarize data on terrigenous sediment supply in the Kara Sea and its accumulation and spatial and temporal variability during Holocene times. Sedimentological, organic-geochemical, and micropaleontological proxies determined in surface sediments allow to characterize the modern (riverine) terrigenous sediment input. AMS-14C dated sediment cores from the Ob and Yenisei estuaries and the adjacent inner Kara Sea were investigated to determine the terrigenous sediment fluxes and their relationship to paleoenvironmental changes. The variability of sediment fluxes during Holocene times is related to the post-glacial sea-level rise and changes in river discharge and coastal erosion input. Whereas during the late/middle Holocene most of the terrigenous sediments were deposited in the estuaries and the areas directly off the estuaries, huge amounts of sediments accumulated on the Kara Sea shelf farther north during the early Holocene before about 9 Cal. kyr BP. The maximum accumulation at that time is related to the lowered sea level, increased coastal erosion, and increased river discharge. Based on sediment thickness charts, echograph profiles and sediment core data, we estimate an average Holocene (0–11 Cal. kyr BP) annual accumulation of 194×106 t yr−1 of total sediment for the whole Kara Sea. Based on late Holocene (modern) sediment accumulation in the estuaries, probably 12×106 t yr−1 of riverine suspended matter (i.e., about 30% of the input) may escape the marginal filter on a geological time scale and is transported onto the open Kara Sea shelf. The high-resolution magnetic susceptibility record of a Yenisei core suggests a short-term variability in Siberian climate and river discharge on a frequency of 300–700 yr. This variability may reflect natural cyclic climate variations to be seen in context with the interannual and interdecadal environmental changes recorded in the High Northern Latitudes over the last decades, such as the NAO/AO pattern. A major decrease in MS values starting near 2.5 ... |
format |
Article in Journal/Newspaper |
author |
Stein, Rüdiger Dittmers, Klaus Fahl, K. Kraus, M. Matthiessen, Jens Niessen, Frank Pirrung, Martina Polyakova, Yelena Schoster, F. Steinke, T. Fütterer, Dieter K. |
spellingShingle |
Stein, Rüdiger Dittmers, Klaus Fahl, K. Kraus, M. Matthiessen, Jens Niessen, Frank Pirrung, Martina Polyakova, Yelena Schoster, F. Steinke, T. Fütterer, Dieter K. Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
author_facet |
Stein, Rüdiger Dittmers, Klaus Fahl, K. Kraus, M. Matthiessen, Jens Niessen, Frank Pirrung, Martina Polyakova, Yelena Schoster, F. Steinke, T. Fütterer, Dieter K. |
author_sort |
Stein, Rüdiger |
title |
Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
title_short |
Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
title_full |
Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
title_fullStr |
Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
title_full_unstemmed |
Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record |
title_sort |
arctic (palaeo) river discharge and environmental change: evidence from the holocene kara sea sedimentary record |
publisher |
Elsevier |
publishDate |
2004 |
url |
https://oceanrep.geomar.de/id/eprint/27401/ https://oceanrep.geomar.de/id/eprint/27401/1/2004_Stein-etal-Arctic_QuaSciRev-23.pdf https://doi.org/10.1016/j.quascirev.2003.12.004 |
geographic |
Arctic Kara Sea |
geographic_facet |
Arctic Kara Sea |
genre |
Arctic Arctic Kara Sea Magnetic susceptibility |
genre_facet |
Arctic Arctic Kara Sea Magnetic susceptibility |
op_relation |
https://oceanrep.geomar.de/id/eprint/27401/1/2004_Stein-etal-Arctic_QuaSciRev-23.pdf Stein, R., Dittmers, K., Fahl, K., Kraus, M., Matthiessen, J., Niessen, F., Pirrung, M., Polyakova, Y., Schoster, F., Steinke, T. and Fütterer, D. K. (2004) Arctic (palaeo) river discharge and environmental change: evidence from the Holocene Kara Sea sedimentary record. Quaternary Science Reviews, 23 (11-13). pp. 1485-1511. DOI 10.1016/j.quascirev.2003.12.004 <https://doi.org/10.1016/j.quascirev.2003.12.004>. doi:10.1016/j.quascirev.2003.12.004 |
op_doi |
https://doi.org/10.1016/j.quascirev.2003.12.004 |
container_title |
Quaternary Science Reviews |
container_volume |
23 |
container_issue |
11-13 |
container_start_page |
1485 |
op_container_end_page |
1511 |
_version_ |
1766300978243436544 |