Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488
High-resolution acoustic data and several sediment gravity cores taken in the Ob and Yenisei estuaries allow us to balance the Holocene sediment budget of both rivers and to reconstruct their sedimentary history. Cores were radiocarbon dated and linked to acoustic profiles using whole-core physical...
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ftdatacite:10.1594/pangaea.802253 2023-05-15T16:59:53+02:00 Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 Dittmers, Klaus Hauke Niessen, Frank Stein, Ruediger 2003 application/zip https://dx.doi.org/10.1594/pangaea.802253 https://doi.pangaea.de/10.1594/PANGAEA.802253 en eng PANGAEA - Data Publisher for Earth & Environmental Science Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Siberian River Run-Off SIRRO Collection article Supplementary Collection of Datasets 2003 ftdatacite https://doi.org/10.1594/pangaea.802253 2021-11-05T12:55:41Z High-resolution acoustic data and several sediment gravity cores taken in the Ob and Yenisei estuaries allow us to balance the Holocene sediment budget of both rivers and to reconstruct their sedimentary history. Cores were radiocarbon dated and linked to acoustic profiles using whole-core physical properties.The Ob and Yenisei estuaries, with their sea water fresh water mixing zone, act as major sediment sinks for fluvial derived terrigeneous material in Holocene times. Most of the suspended and large amounts of dissolved matter precipitate in this zone termed "marginal filter". High thickness of Holocene sediments occurs between 72°N and 73°30'N where a distinct decrease in thickness is observed to the north. Two major acoustic units could be differentiated, separated by a prominent reflector interpreted as the base of the Holocene. High-resolution echosound data suggest a fluvial dominated depositional environment for the early Holocene displaying lateral accretion as point bars and vertical accreted overbank deposits in a fluvial channel-levee-complex. During the early Holocene sea-level rise the marginal filter migrated progressively southward (upstream) to its present position forming a typical high-stand system tract in acoustic images. Estuarine sedimentation in a sedimentary environment similar to today started at approximately 5 Cal. kyrs. BP. An estimated total of 14.3 * 10**10 t and 9.2 * 10**9 t of fine-grained brackish-marine sediments, in the Ob and Yenisei estuaries, respectively, were accumulated during Holocene times. This is only about 75% and about 50% of Ob and Yenisei estuarine sediment budgets, respectively, estimated by extrapolation of recent river run-off data over the last 7500 years. Filled paleoriver channels indicate active river incision in the southern part of the Kara Sea shelf prior to the Holocene. Article in Journal/Newspaper Kara Sea DataCite Metadata Store (German National Library of Science and Technology) Kara Sea Klaus ENVELOPE(24.117,24.117,65.717,65.717) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Siberian River Run-Off SIRRO |
spellingShingle |
Siberian River Run-Off SIRRO Dittmers, Klaus Hauke Niessen, Frank Stein, Ruediger Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
topic_facet |
Siberian River Run-Off SIRRO |
description |
High-resolution acoustic data and several sediment gravity cores taken in the Ob and Yenisei estuaries allow us to balance the Holocene sediment budget of both rivers and to reconstruct their sedimentary history. Cores were radiocarbon dated and linked to acoustic profiles using whole-core physical properties.The Ob and Yenisei estuaries, with their sea water fresh water mixing zone, act as major sediment sinks for fluvial derived terrigeneous material in Holocene times. Most of the suspended and large amounts of dissolved matter precipitate in this zone termed "marginal filter". High thickness of Holocene sediments occurs between 72°N and 73°30'N where a distinct decrease in thickness is observed to the north. Two major acoustic units could be differentiated, separated by a prominent reflector interpreted as the base of the Holocene. High-resolution echosound data suggest a fluvial dominated depositional environment for the early Holocene displaying lateral accretion as point bars and vertical accreted overbank deposits in a fluvial channel-levee-complex. During the early Holocene sea-level rise the marginal filter migrated progressively southward (upstream) to its present position forming a typical high-stand system tract in acoustic images. Estuarine sedimentation in a sedimentary environment similar to today started at approximately 5 Cal. kyrs. BP. An estimated total of 14.3 * 10**10 t and 9.2 * 10**9 t of fine-grained brackish-marine sediments, in the Ob and Yenisei estuaries, respectively, were accumulated during Holocene times. This is only about 75% and about 50% of Ob and Yenisei estuarine sediment budgets, respectively, estimated by extrapolation of recent river run-off data over the last 7500 years. Filled paleoriver channels indicate active river incision in the southern part of the Kara Sea shelf prior to the Holocene. |
format |
Article in Journal/Newspaper |
author |
Dittmers, Klaus Hauke Niessen, Frank Stein, Ruediger |
author_facet |
Dittmers, Klaus Hauke Niessen, Frank Stein, Ruediger |
author_sort |
Dittmers, Klaus Hauke |
title |
Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
title_short |
Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
title_full |
Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
title_fullStr |
Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
title_full_unstemmed |
Physical properties of 22 sediment cores from the Kara Sea, supplement to: Dittmers, Klaus Hauke; Niessen, Frank; Stein, Ruediger (2003): Holocene sediment budget and sedimentary history of the Ob and Yenisei estuaries. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 457-488 |
title_sort |
physical properties of 22 sediment cores from the kara sea, supplement to: dittmers, klaus hauke; niessen, frank; stein, ruediger (2003): holocene sediment budget and sedimentary history of the ob and yenisei estuaries. in: stein, r; fahl, k; fütterer, d k; galimov, e m & stepanets, o v (eds.), siberian river run-off in the kara sea: characterisation, quantification, variability, and environmental significance, 488 pp. proceedings in marine sciences, elsevier, amsterdam, 6, 457-488 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2003 |
url |
https://dx.doi.org/10.1594/pangaea.802253 https://doi.pangaea.de/10.1594/PANGAEA.802253 |
long_lat |
ENVELOPE(24.117,24.117,65.717,65.717) |
geographic |
Kara Sea Klaus |
geographic_facet |
Kara Sea Klaus |
genre |
Kara Sea |
genre_facet |
Kara Sea |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.802253 |
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1766052439440490496 |