Benthic foraminiferal records from two sediment cores from the Arctic Ocean
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2001
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| _version_ | 1867169499663302656 |
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| author | Wollenburg, Jutta Erika Kuhnt, Wolfgang Mackensen, Andreas |
| author_facet | Wollenburg, Jutta Erika Kuhnt, Wolfgang Mackensen, Andreas |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The benthic foraminiferal record of two sediment cores at 900 and 2500 rn water depth in the marginal Arctic Ocean reflects fluctuations in paleoproductivity, ice sheet extent, and Atlantic water inflow. Highest paleoproductivity is observed in interglacial periods, and at the termination of interstadials to stadials within oxygen isotope substages (OIS) 6.3, 5.3, 5.1, 3.1, and Termination Ia. Stable and high paleoproductivity at the ice-edge during terminations is indicated by the Melonis zaandami benthic foraminiferal association. Periods of glacial ice sheet advance or retreat from the core site are dominated by benthic foraminiferal associations related to seasonal organic carbon flux. Temperate saline Atlantic water entered the Arctic Ocean within OIS 6.3, 5.5 and the Holocene. Coincident paleoproductivity maxima are related to extended seasonal ice retreat. During glacial periods of stagnating Atlantic water advection unusual low paleoproductivity values are observed in the Arctic Ocean, indicating increasing ice coverage. Deep water was poorly ventilated during these periods and the deeper site became exposed to corrosive bottom waters. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_728286 |
| institution | PANGAEA |
| language | en |
| publishDate | 2001 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Benthic foraminiferal records from two sediment cores from the Arctic Ocean Wollenburg, Jutta Erika Kuhnt, Wolfgang Mackensen, Andreas ARK-VIII/2; ARK-VIII/3; AWI_Paleo; Gravity corer (Kiel type); KAL; Kasten corer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19/112; PS19/245; PS19 ARCTIC91; PS19 EPOS II; PS2138-1; PS2212-3; Quaternary Environment of the Eurasian North; QUEEN; SL; Svalbard; Yermak Plateau The benthic foraminiferal record of two sediment cores at 900 and 2500 rn water depth in the marginal Arctic Ocean reflects fluctuations in paleoproductivity, ice sheet extent, and Atlantic water inflow. Highest paleoproductivity is observed in interglacial periods, and at the termination of interstadials to stadials within oxygen isotope substages (OIS) 6.3, 5.3, 5.1, 3.1, and Termination Ia. Stable and high paleoproductivity at the ice-edge during terminations is indicated by the Melonis zaandami benthic foraminiferal association. Periods of glacial ice sheet advance or retreat from the core site are dominated by benthic foraminiferal associations related to seasonal organic carbon flux. Temperate saline Atlantic water entered the Arctic Ocean within OIS 6.3, 5.5 and the Holocene. Coincident paleoproductivity maxima are related to extended seasonal ice retreat. During glacial periods of stagnating Atlantic water advection unusual low paleoproductivity values are observed in the Arctic Ocean, indicating increasing ice coverage. Deep water was poorly ventilated during these periods and the deeper site became exposed to corrosive bottom waters. |
| title | Benthic foraminiferal records from two sediment cores from the Arctic Ocean |
| topic | ARK-VIII/2; ARK-VIII/3; AWI_Paleo; Gravity corer (Kiel type); KAL; Kasten corer; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS19/112; PS19/245; PS19 ARCTIC91; PS19 EPOS II; PS2138-1; PS2212-3; Quaternary Environment of the Eurasian North; QUEEN; SL; Svalbard; Yermak Plateau |
| url | https://doi.org/10.1594/PANGAEA.728286 |