Age determination and sedimentation rates of sediment cores in the Laptev Sea
The Holocene depositional setting of the Laptev Sea was studied using three marine sediment cores from water depths between 77 and 46 m. Based on sedimentary parameters (TOC content, delta13Corg, sedimentation rates) controlled by radiocarbon age models the palaeoenvironment of a strongly coupled ri...
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.711773 https://doi.org/10.1594/PANGAEA.711773 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.711773 2024-09-15T17:50:45+00:00 Age determination and sedimentation rates of sediment cores in the Laptev Sea Bauch, Henning A Kassens, Heidemarie Erlenkeuser, Helmut Grootes, Pieter Meiert Thiede, Jörn MEDIAN LATITUDE: 76.149143 * MEDIAN LONGITUDE: 124.649714 * SOUTH-BOUND LATITUDE: 75.501000 * WEST-BOUND LONGITUDE: 115.545000 * NORTH-BOUND LATITUDE: 78.656000 * EAST-BOUND LONGITUDE: 144.135000 * DATE/TIME START: 1994-09-24T00:00:00 * DATE/TIME END: 1995-10-08T00:00:00 1999 application/zip, 7 datasets https://doi.pangaea.de/10.1594/PANGAEA.711773 https://doi.org/10.1594/PANGAEA.711773 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.711773 https://doi.org/10.1594/PANGAEA.711773 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Bauch, Henning A; Kassens, Heidemarie; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Thiede, Jörn (1999): Depositional environment of the Laptev Sea (Arctic Siberia) during the Holocene. Boreas, 28(1), 194-204, https://doi.org/10.1111/j.1502-3885.1999.tb00214.x Arctic Ocean ARK-XI/1 AWI_Paleo Gravity corer (Kiel type) KAL Kapitan Dranitsyn Kasten corer KD9502-14 Laptev Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PM9499-2 Polarstern Professor Multanovskiy PS2725-5 PS36 PS36/009 Quaternary Environment of the Eurasian North QUEEN SL Transdrift-II Transdrift-III VC Vibro corer dataset publication series 1999 ftpangaea https://doi.org/10.1594/PANGAEA.71177310.1111/j.1502-3885.1999.tb00214.x 2024-07-24T02:31:42Z The Holocene depositional setting of the Laptev Sea was studied using three marine sediment cores from water depths between 77 and 46 m. Based on sedimentary parameters (TOC content, delta13Corg, sedimentation rates) controlled by radiocarbon age models the palaeoenvironment of a strongly coupled river-shelf system was reconstructed since ~11 ka BP. Caused by a transgressing sea after the last glaciation, all cores reveal progressive decreases in sedimentation rates. Using the sedimentary records of a core from the Khatanga-Anabar river channel in the western Laptev Sea, several phases of change are recognized: (1) an early period lasted until ~10 ka BP characterized by an increased deposition of plant debris due to shelf erosion and fluvial runoff; (2) a transitional phase with consistently increasing marine conditions until 6 ka BP, which was marked at its beginning near 10 ka BP by the first occurrence of marine bivalves, high TOC content and an increase in delta13Corg; (3) a time of extremely slow deposition of sediments, commencing at ~6 ka BP and interpreted as Holocene sea-level highstand, which caused a southward retreat of the depositional centres within the now submerged river channels on the shelf; (4) a final phase with the establishment of modern conditions after ~2 ka BP. Other/Unknown Material Arctic Arctic Ocean khatanga laptev Laptev Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(115.545000,144.135000,78.656000,75.501000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Arctic Ocean ARK-XI/1 AWI_Paleo Gravity corer (Kiel type) KAL Kapitan Dranitsyn Kasten corer KD9502-14 Laptev Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PM9499-2 Polarstern Professor Multanovskiy PS2725-5 PS36 PS36/009 Quaternary Environment of the Eurasian North QUEEN SL Transdrift-II Transdrift-III VC Vibro corer |
spellingShingle |
Arctic Ocean ARK-XI/1 AWI_Paleo Gravity corer (Kiel type) KAL Kapitan Dranitsyn Kasten corer KD9502-14 Laptev Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PM9499-2 Polarstern Professor Multanovskiy PS2725-5 PS36 PS36/009 Quaternary Environment of the Eurasian North QUEEN SL Transdrift-II Transdrift-III VC Vibro corer Bauch, Henning A Kassens, Heidemarie Erlenkeuser, Helmut Grootes, Pieter Meiert Thiede, Jörn Age determination and sedimentation rates of sediment cores in the Laptev Sea |
topic_facet |
Arctic Ocean ARK-XI/1 AWI_Paleo Gravity corer (Kiel type) KAL Kapitan Dranitsyn Kasten corer KD9502-14 Laptev Sea Paleoenvironmental Reconstructions from Marine Sediments @ AWI PM9499-2 Polarstern Professor Multanovskiy PS2725-5 PS36 PS36/009 Quaternary Environment of the Eurasian North QUEEN SL Transdrift-II Transdrift-III VC Vibro corer |
description |
The Holocene depositional setting of the Laptev Sea was studied using three marine sediment cores from water depths between 77 and 46 m. Based on sedimentary parameters (TOC content, delta13Corg, sedimentation rates) controlled by radiocarbon age models the palaeoenvironment of a strongly coupled river-shelf system was reconstructed since ~11 ka BP. Caused by a transgressing sea after the last glaciation, all cores reveal progressive decreases in sedimentation rates. Using the sedimentary records of a core from the Khatanga-Anabar river channel in the western Laptev Sea, several phases of change are recognized: (1) an early period lasted until ~10 ka BP characterized by an increased deposition of plant debris due to shelf erosion and fluvial runoff; (2) a transitional phase with consistently increasing marine conditions until 6 ka BP, which was marked at its beginning near 10 ka BP by the first occurrence of marine bivalves, high TOC content and an increase in delta13Corg; (3) a time of extremely slow deposition of sediments, commencing at ~6 ka BP and interpreted as Holocene sea-level highstand, which caused a southward retreat of the depositional centres within the now submerged river channels on the shelf; (4) a final phase with the establishment of modern conditions after ~2 ka BP. |
format |
Other/Unknown Material |
author |
Bauch, Henning A Kassens, Heidemarie Erlenkeuser, Helmut Grootes, Pieter Meiert Thiede, Jörn |
author_facet |
Bauch, Henning A Kassens, Heidemarie Erlenkeuser, Helmut Grootes, Pieter Meiert Thiede, Jörn |
author_sort |
Bauch, Henning A |
title |
Age determination and sedimentation rates of sediment cores in the Laptev Sea |
title_short |
Age determination and sedimentation rates of sediment cores in the Laptev Sea |
title_full |
Age determination and sedimentation rates of sediment cores in the Laptev Sea |
title_fullStr |
Age determination and sedimentation rates of sediment cores in the Laptev Sea |
title_full_unstemmed |
Age determination and sedimentation rates of sediment cores in the Laptev Sea |
title_sort |
age determination and sedimentation rates of sediment cores in the laptev sea |
publisher |
PANGAEA |
publishDate |
1999 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.711773 https://doi.org/10.1594/PANGAEA.711773 |
op_coverage |
MEDIAN LATITUDE: 76.149143 * MEDIAN LONGITUDE: 124.649714 * SOUTH-BOUND LATITUDE: 75.501000 * WEST-BOUND LONGITUDE: 115.545000 * NORTH-BOUND LATITUDE: 78.656000 * EAST-BOUND LONGITUDE: 144.135000 * DATE/TIME START: 1994-09-24T00:00:00 * DATE/TIME END: 1995-10-08T00:00:00 |
long_lat |
ENVELOPE(115.545000,144.135000,78.656000,75.501000) |
genre |
Arctic Arctic Ocean khatanga laptev Laptev Sea |
genre_facet |
Arctic Arctic Ocean khatanga laptev Laptev Sea |
op_source |
Supplement to: Bauch, Henning A; Kassens, Heidemarie; Erlenkeuser, Helmut; Grootes, Pieter Meiert; Thiede, Jörn (1999): Depositional environment of the Laptev Sea (Arctic Siberia) during the Holocene. Boreas, 28(1), 194-204, https://doi.org/10.1111/j.1502-3885.1999.tb00214.x |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.711773 https://doi.org/10.1594/PANGAEA.711773 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.71177310.1111/j.1502-3885.1999.tb00214.x |
_version_ |
1810292553835085824 |