ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean)
“Siberian River Run-off (SIRRO) ” dealing with 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 mai...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.452.2459 2023-05-15T15:06:42+02:00 ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) K. Fahl R. Stein The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.2459 http://epic.awi.de/15410/1/Fah2006b.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.2459 http://epic.awi.de/15410/1/Fah2006b.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://epic.awi.de/15410/1/Fah2006b.pdf text 2006 ftciteseerx 2016-01-08T05:57:01Z “Siberian River Run-off (SIRRO) ” dealing with 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 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 in both cores clearly indicate the predom-inance of terrigenous organic matter, reaching 70–100 and 50–80 % of total organic carbon within and directly north of the estuary, respectively. During the last ca. 9 cal ka B.P. 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-Holo-cene Climatic Optimum is documented by maximum river discharge between 8.2 and 7.3 cal ka B.P. During the last 2,000 years, river discharge probably decreased, and accumulation of both terrigenous and marine organic carbon increased due to enhanced coagulation of fine-grained material. Text Arctic Arctic Ocean Climate change Kara Sea Unknown Arctic Arctic Ocean Holo ENVELOPE(9.954,9.954,63.343,63.343) Kara Sea Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) |
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ftciteseerx |
language |
English |
description |
“Siberian River Run-off (SIRRO) ” dealing with 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 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 in both cores clearly indicate the predom-inance of terrigenous organic matter, reaching 70–100 and 50–80 % of total organic carbon within and directly north of the estuary, respectively. During the last ca. 9 cal ka B.P. 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-Holo-cene Climatic Optimum is documented by maximum river discharge between 8.2 and 7.3 cal ka B.P. During the last 2,000 years, river discharge probably decreased, and accumulation of both terrigenous and marine organic carbon increased due to enhanced coagulation of fine-grained material. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
K. Fahl R. Stein |
spellingShingle |
K. Fahl R. Stein ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
author_facet |
K. Fahl R. Stein |
author_sort |
K. Fahl |
title |
ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
title_short |
ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
title_full |
ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
title_fullStr |
ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
title_full_unstemmed |
ORIGINAL Biomarker records, organic carbon accumulation, and river discharge in the Holocene southern Kara Sea (Arctic Ocean) |
title_sort |
original biomarker records, organic carbon accumulation, and river discharge in the holocene southern kara sea (arctic ocean) |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.2459 http://epic.awi.de/15410/1/Fah2006b.pdf |
long_lat |
ENVELOPE(9.954,9.954,63.343,63.343) ENVELOPE(84.738,84.738,69.718,69.718) |
geographic |
Arctic Arctic Ocean Holo Kara Sea Yenisei River |
geographic_facet |
Arctic Arctic Ocean Holo Kara Sea Yenisei River |
genre |
Arctic Arctic Ocean Climate change Kara Sea |
genre_facet |
Arctic Arctic Ocean Climate change Kara Sea |
op_source |
http://epic.awi.de/15410/1/Fah2006b.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.452.2459 http://epic.awi.de/15410/1/Fah2006b.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766338251085316096 |