Organic geochemistry of two sediment cores from the Kara Sea
Within the Russian-German research project on "Siberian River Run-off (SIRRO)" devoted to the freshwater discharge and its influence on biological, geochemical, and geological processes in the Kara Sea, sedimentological and organic-geochemical investigations were carried-out on two well-da...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.547989 2023-05-15T14:25:16+02:00 Organic geochemistry of two sediment cores from the Kara Sea Fahl, Kirsten Stein, Ruediger MEDIAN LATITUDE: 74.036215 * MEDIAN LONGITUDE: 80.407880 * SOUTH-BOUND LATITUDE: 73.414830 * WEST-BOUND LONGITUDE: 79.674660 * NORTH-BOUND LATITUDE: 74.657600 * EAST-BOUND LONGITUDE: 81.141100 * DATE/TIME START: 1999-08-26T00:00:00 * DATE/TIME END: 2000-09-07T06:22:00 2007-11-07 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.547989 https://doi.org/10.1594/PANGAEA.547989 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.547989 https://doi.org/10.1594/PANGAEA.547989 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Fahl, Kirsten; Stein, Ruediger (2007): Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean). Geo-Marine Letters, 27(1), 13-25, https://doi.org/10.1007/s00367-006-0049-8 Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 BP99 BP99-04/07 GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Siberian River Run-Off SIRRO Dataset 2007 ftpangaea https://doi.org/10.1594/PANGAEA.547989 https://doi.org/10.1007/s00367-006-0049-8 2023-01-20T07:31:00Z Within the Russian-German research project on "Siberian River Run-off (SIRRO)" devoted to the freshwater discharge and its influence on biological, geochemical, and geological processes in the Kara Sea, sedimentological and organic-geochemical investigations were carried-out on two well-dated sediment cores from the Yenisei Estuary area. The main goal of this study was to quantify the terrigenous organic carbon accumulation based on biomarker and bulk accumulation rate data, and its relationship to Yenisei river discharge and climate change through Holocene times. The biomarker data at both cores clearly indicate the predominance of terrigenous organic matter, reaching 70 to 100% and 50 to 80% of the total organic carbon within and directly north of the estuary, respectively. During the last about 9 Cal. kyrs. BP represented in the studied sediment section, siliciclastic sediment and (terrigenous) organic carbon input was strongly influenced by postglacial sea-level rise and climate-related changes in river discharge. The mid-Holocene Climatic Optimum is documented by maximum river discharge between 8.2 and 7.3 Cal. kyrs. BP. During the last 2000 years river discharge probably became reduced, and accumulation of both terrigenous and marine organic carbon increased due to increased coagulation of fine-grained material. Dataset Arctic Kara Sea PANGAEA - Data Publisher for Earth & Environmental Science Kara Sea Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) ENVELOPE(79.674660,81.141100,74.657600,73.414830) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 BP99 BP99-04/07 GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Siberian River Run-Off SIRRO |
spellingShingle |
Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 BP99 BP99-04/07 GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Siberian River Run-Off SIRRO Fahl, Kirsten Stein, Ruediger Organic geochemistry of two sediment cores from the Kara Sea |
topic_facet |
Akademik Boris Petrov AWI_Paleo BP00 BP00-07/07 BP99 BP99-04/07 GC Gravity corer Kara Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI Siberian River Run-Off SIRRO |
description |
Within the Russian-German research project on "Siberian River Run-off (SIRRO)" devoted to the freshwater discharge and its influence on biological, geochemical, and geological processes in the Kara Sea, sedimentological and organic-geochemical investigations were carried-out on two well-dated sediment cores from the Yenisei Estuary area. The main goal of this study was to quantify the terrigenous organic carbon accumulation based on biomarker and bulk accumulation rate data, and its relationship to Yenisei river discharge and climate change through Holocene times. The biomarker data at both cores clearly indicate the predominance of terrigenous organic matter, reaching 70 to 100% and 50 to 80% of the total organic carbon within and directly north of the estuary, respectively. During the last about 9 Cal. kyrs. BP represented in the studied sediment section, siliciclastic sediment and (terrigenous) organic carbon input was strongly influenced by postglacial sea-level rise and climate-related changes in river discharge. The mid-Holocene Climatic Optimum is documented by maximum river discharge between 8.2 and 7.3 Cal. kyrs. BP. During the last 2000 years river discharge probably became reduced, and accumulation of both terrigenous and marine organic carbon increased due to increased coagulation of fine-grained material. |
format |
Dataset |
author |
Fahl, Kirsten Stein, Ruediger |
author_facet |
Fahl, Kirsten Stein, Ruediger |
author_sort |
Fahl, Kirsten |
title |
Organic geochemistry of two sediment cores from the Kara Sea |
title_short |
Organic geochemistry of two sediment cores from the Kara Sea |
title_full |
Organic geochemistry of two sediment cores from the Kara Sea |
title_fullStr |
Organic geochemistry of two sediment cores from the Kara Sea |
title_full_unstemmed |
Organic geochemistry of two sediment cores from the Kara Sea |
title_sort |
organic geochemistry of two sediment cores from the kara sea |
publisher |
PANGAEA |
publishDate |
2007 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.547989 https://doi.org/10.1594/PANGAEA.547989 |
op_coverage |
MEDIAN LATITUDE: 74.036215 * MEDIAN LONGITUDE: 80.407880 * SOUTH-BOUND LATITUDE: 73.414830 * WEST-BOUND LONGITUDE: 79.674660 * NORTH-BOUND LATITUDE: 74.657600 * EAST-BOUND LONGITUDE: 81.141100 * DATE/TIME START: 1999-08-26T00:00:00 * DATE/TIME END: 2000-09-07T06:22:00 |
long_lat |
ENVELOPE(84.738,84.738,69.718,69.718) ENVELOPE(79.674660,81.141100,74.657600,73.414830) |
geographic |
Kara Sea Yenisei River |
geographic_facet |
Kara Sea Yenisei River |
genre |
Arctic Kara Sea |
genre_facet |
Arctic Kara Sea |
op_source |
Supplement to: Fahl, Kirsten; Stein, Ruediger (2007): Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean). Geo-Marine Letters, 27(1), 13-25, https://doi.org/10.1007/s00367-006-0049-8 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.547989 https://doi.org/10.1594/PANGAEA.547989 |
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.547989 https://doi.org/10.1007/s00367-006-0049-8 |
_version_ |
1766297692944728064 |