Organic carbon concentrations and isotope ratios of sediments from the Laptev Sea
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2000
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| _version_ | 1867171357262872576 |
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| author | Müller-Lupp, Thomas Bauch, Henning A Erlenkeuser, Helmut Hefter, Jens Kassens, Heidemarie Thiede, Jörn |
| author_facet | Müller-Lupp, Thomas Bauch, Henning A Erlenkeuser, Helmut Hefter, Jens Kassens, Heidemarie Thiede, Jörn |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The delta13Corg signature of the surface sediments range from -26.6 per mil near the coastal margin to -22.8 per mil in the north towards the outer shelf. Characterizing the possible sources of organic matter by their delta13Corg signature reveals that the terrestrial influence reaches further north in the eastern than in the western Laptev Sea. Downcore records of the delta13Corg, measured on three AMS 14C-dated cores from water depths between 46 and 77 m, specify the spatial and temporal changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the past 12.7 ka. The major depositional changes of terrestrial organic matter occurred between 11 and 7 ka and comprised the main phase of the southward retreat of the coastline and of the river depocenters due to the postglacial sea level rise. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_712058 |
| institution | PANGAEA |
| language | en |
| publishDate | 2000 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Organic carbon concentrations and isotope ratios of sediments from the Laptev Sea Müller-Lupp, Thomas Bauch, Henning A Erlenkeuser, Helmut Hefter, Jens Kassens, Heidemarie Thiede, Jörn Arctic Ocean; ARK-XI/1; ARK-XIV/1b; AWI_Paleo; BC; BCR; Box corer; Box corer (Reineck); CTD/Rosette; CTD-RO; GEOMAR; Giant box corer; GKG; Grab; GRAB; Gravity corer (Kiel type); Helmholtz Centre for Ocean Research Kiel; IK9301-6; IK9306-6; IK9309-4; IK9313-6; IK9315-1; IK9316-6; IK9318-3; IK9321-5; IK9323-6; IK9324-4; IK9330-2; IK9334-7; IK9338-5; IK9340-6; IK9342-6; IK9344-8; IK9346-4; IK9348-6; IK9353-9; IK9356-2; IK9358-5; IK9365-6; IK9367-2; IK9370-6; IK9371-1; IK9373-8; IK9373A-6; IK9382-6; IK9384-1; IK93K1-1; IK93K2-1; IK93Z3-3; IK93Z4-4; IK93Z5-3; Ivan Kireyev; KAL; Kapitan Dranitsyn; Kasten corer; KD9502-12; KD9502-14; KD9509-6; KD9517-3; KD9523-7; KD9529-11; KD9533-10; KD9541-12; KD9548-11; KD9555-10; KD9560-5; KD9561-3; KD9565-11; KD9568-7; KD9572-1; Laptev Sea; Lena Nordenskøld Station; LN9604-8; LN9604-9; LN9605-8; LN9605-9; LN9606-10; LN9606-9; LN9608-12; LN9609-14; LN9610-11; LN9611-12; LN9612-8; LN9613-8; LN9614-7; LN9615-5; LN9616-7; LN9617-8; LN9618-8; LN9619-9; LN9620-12; LN9621-11; LN9622-8; LN9623-10; LN9624-10; LN9625-10; Mueller-Lupp; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Photo/Video; PM9402-3; PM9417-4; PM9441-4; PM9442-3; PM9462-1; PM9463-8; PM9475-3; PM9481-2; PM9482-1; PM9492-3; PM9494-5; PM9499-1; PM9499-2; Polarstern; Professor Multanovskiy; PS2725-5; PS36; PS36/009; PS51/080-11; PS51/085-2; PS51/092-11; PS51/093-1; PS51/104-14; PS51/105-3; PS51/106-1; PS51/114-13; PS51/117-3; PS51/118-1; PS51/125-12; PS51/126-2; PS51/135-2; PS51/138-10; PS51/154-9; PS51/158-8; PS51/159-8; PS51 Transdrift-V; PV; Quaternary Environment of the Eurasian North; QUEEN; RUS_unspec; SL; TI9902-2; TI9903-9; TI9904-9; TI9907-13; TI9908-14; TI9909-13; TI9916-13; TI9918-13; TI9920-13; TI9924-2; Transdrift-I; Transdrift-II; Transdrift-III; Transdrift-IV; van Veen Grab; VC; VGRAB; Vibro corer Stable carbon isotope ratios in the organic fraction of surface sediments from the Laptev Sea shelf were analyzed in order to study the modern distribution pattern of terrestrial organic matter. The delta13Corg signature of the surface sediments range from -26.6 per mil near the coastal margin to -22.8 per mil in the north towards the outer shelf. Characterizing the possible sources of organic matter by their delta13Corg signature reveals that the terrestrial influence reaches further north in the eastern than in the western Laptev Sea. Downcore records of the delta13Corg, measured on three AMS 14C-dated cores from water depths between 46 and 77 m, specify the spatial and temporal changes in the deposition of terrestrial organic matter on the Laptev Sea shelf during the past 12.7 ka. The major depositional changes of terrestrial organic matter occurred between 11 and 7 ka and comprised the main phase of the southward retreat of the coastline and of the river depocenters due to the postglacial sea level rise. |
| title | Organic carbon concentrations and isotope ratios of sediments from the Laptev Sea |
| topic | Arctic Ocean; ARK-XI/1; ARK-XIV/1b; AWI_Paleo; BC; BCR; Box corer; Box corer (Reineck); CTD/Rosette; CTD-RO; GEOMAR; Giant box corer; GKG; Grab; GRAB; Gravity corer (Kiel type); Helmholtz Centre for Ocean Research Kiel; IK9301-6; IK9306-6; IK9309-4; IK9313-6; IK9315-1; IK9316-6; IK9318-3; IK9321-5; IK9323-6; IK9324-4; IK9330-2; IK9334-7; IK9338-5; IK9340-6; IK9342-6; IK9344-8; IK9346-4; IK9348-6; IK9353-9; IK9356-2; IK9358-5; IK9365-6; IK9367-2; IK9370-6; IK9371-1; IK9373-8; IK9373A-6; IK9382-6; IK9384-1; IK93K1-1; IK93K2-1; IK93Z3-3; IK93Z4-4; IK93Z5-3; Ivan Kireyev; KAL; Kapitan Dranitsyn; Kasten corer; KD9502-12; KD9502-14; KD9509-6; KD9517-3; KD9523-7; KD9529-11; KD9533-10; KD9541-12; KD9548-11; KD9555-10; KD9560-5; KD9561-3; KD9565-11; KD9568-7; KD9572-1; Laptev Sea; Lena Nordenskøld Station; LN9604-8; LN9604-9; LN9605-8; LN9605-9; LN9606-10; LN9606-9; LN9608-12; LN9609-14; LN9610-11; LN9611-12; LN9612-8; LN9613-8; LN9614-7; LN9615-5; LN9616-7; LN9617-8; LN9618-8; LN9619-9; LN9620-12; LN9621-11; LN9622-8; LN9623-10; LN9624-10; LN9625-10; Mueller-Lupp; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Photo/Video; PM9402-3; PM9417-4; PM9441-4; PM9442-3; PM9462-1; PM9463-8; PM9475-3; PM9481-2; PM9482-1; PM9492-3; PM9494-5; PM9499-1; PM9499-2; Polarstern; Professor Multanovskiy; PS2725-5; PS36; PS36/009; PS51/080-11; PS51/085-2; PS51/092-11; PS51/093-1; PS51/104-14; PS51/105-3; PS51/106-1; PS51/114-13; PS51/117-3; PS51/118-1; PS51/125-12; PS51/126-2; PS51/135-2; PS51/138-10; PS51/154-9; PS51/158-8; PS51/159-8; PS51 Transdrift-V; PV; Quaternary Environment of the Eurasian North; QUEEN; RUS_unspec; SL; TI9902-2; TI9903-9; TI9904-9; TI9907-13; TI9908-14; TI9909-13; TI9916-13; TI9918-13; TI9920-13; TI9924-2; Transdrift-I; Transdrift-II; Transdrift-III; Transdrift-IV; van Veen Grab; VC; VGRAB; Vibro corer |
| url | https://doi.org/10.1594/PANGAEA.712058 |