Pollen record and age determinations on four sites from Taymyr Peninsula, Russia
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2003
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| _version_ | 1867171357850075136 |
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| author | Andreev, Andrei A Tarasov, Pavel E Siegert, Christine Ebel, Tobias Klimanov, Vladimir A Melles, Martin Bobrov, Anatoly A Dereviagin, Alexander Yu Lubinski, David J Hubberten, Hans-Wolfgang |
| author_facet | Andreev, Andrei A Tarasov, Pavel E Siegert, Christine Ebel, Tobias Klimanov, Vladimir A Melles, Martin Bobrov, Anatoly A Dereviagin, Alexander Yu Lubinski, David J Hubberten, Hans-Wolfgang |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Pollen data from a Levinson-Lessing Lake sediment core (74°28'N, 98°38'E) and Cape Sabler, Taymyr Lake permafrost sequences (74°33'N, 100°32'E) reveal substantial environmental changes on the northern Taymyr Peninsula during the last c. 32 000 14C years. The continuous records confirm that a scarce steppe-like vegetation with Poaceae, Artemisia and Cyperaceae dominated c. 32 000-10 300 14C yr BP, while tundra-like vegetation with Oxyria, Ranunculaceae and Caryophyllaceae grew in wetter areas. The coldest interval occurred c. 18 000 yr BP. Lateglacial pollen data show several warming events followed by a climate deterioration c. 10 500 14C yr BP, which may correspond with the Younger Dryas. The Late Pleistocene/Holocene transition, c. 10 300-10 000 14C yr BP, is characterized by a change from the herb-dominated vegetation to shrubby tundra with Betula sect. Nanae and Salix. Alnus fruticosa arrived locally c. 9000-8500 14C yr BP and disappeared c. 4000-3500 14C yr BP. Communities of Betula sect. Nanae, broadly distributed at c. 10 000-3500 14C yr BP, almost disappeared when vegetation became similar to the modern herb tundra after 3500-3000 14C yr BP. Quantitative climate reconstructions show Last Glacial Maximum summer temperature about 4°C below the present and Preboreal (c. 10 000 14C yr BP) temperature 2-4°C above the present. Maximum summer temperature occurred between 10 000 and 5500 14C yr BP; later summers were similar to present or slightly warmer. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_726592 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Pollen record and age determinations on four sites from Taymyr Peninsula, Russia Andreev, Andrei A Tarasov, Pavel E Siegert, Christine Ebel, Tobias Klimanov, Vladimir A Melles, Martin Bobrov, Anatoly A Dereviagin, Alexander Yu Lubinski, David J Hubberten, Hans-Wolfgang AWI_PerDyn; AWI Arctic Land Expedition; Cape Sabler, Taymyr Lake, Taymyr Peninsula, Krasnoyarsk, northern Russia; COMPCORE; Composite Core; Geological profile sampling; GEOPRO; Permafrost Research (Periglacial Dynamics) @ AWI; PG1228; RU-Land_1995_Taymyr; SAO1; SAO4; Taymyr; Taymyr95; Labaz_Lake_Expedition Pollen data from a Levinson-Lessing Lake sediment core (74°28'N, 98°38'E) and Cape Sabler, Taymyr Lake permafrost sequences (74°33'N, 100°32'E) reveal substantial environmental changes on the northern Taymyr Peninsula during the last c. 32 000 14C years. The continuous records confirm that a scarce steppe-like vegetation with Poaceae, Artemisia and Cyperaceae dominated c. 32 000-10 300 14C yr BP, while tundra-like vegetation with Oxyria, Ranunculaceae and Caryophyllaceae grew in wetter areas. The coldest interval occurred c. 18 000 yr BP. Lateglacial pollen data show several warming events followed by a climate deterioration c. 10 500 14C yr BP, which may correspond with the Younger Dryas. The Late Pleistocene/Holocene transition, c. 10 300-10 000 14C yr BP, is characterized by a change from the herb-dominated vegetation to shrubby tundra with Betula sect. Nanae and Salix. Alnus fruticosa arrived locally c. 9000-8500 14C yr BP and disappeared c. 4000-3500 14C yr BP. Communities of Betula sect. Nanae, broadly distributed at c. 10 000-3500 14C yr BP, almost disappeared when vegetation became similar to the modern herb tundra after 3500-3000 14C yr BP. Quantitative climate reconstructions show Last Glacial Maximum summer temperature about 4°C below the present and Preboreal (c. 10 000 14C yr BP) temperature 2-4°C above the present. Maximum summer temperature occurred between 10 000 and 5500 14C yr BP; later summers were similar to present or slightly warmer. |
| title | Pollen record and age determinations on four sites from Taymyr Peninsula, Russia |
| topic | AWI_PerDyn; AWI Arctic Land Expedition; Cape Sabler, Taymyr Lake, Taymyr Peninsula, Krasnoyarsk, northern Russia; COMPCORE; Composite Core; Geological profile sampling; GEOPRO; Permafrost Research (Periglacial Dynamics) @ AWI; PG1228; RU-Land_1995_Taymyr; SAO1; SAO4; Taymyr; Taymyr95; Labaz_Lake_Expedition |
| url | https://doi.org/10.1594/PANGAEA.726592 |