High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey
Detailed analyses of the Lake Van pollen, Ca/K ratio and stable oxygen isotope record allow the identification of millennial-scale vegetation and environmental changes in eastern Anatolia throughout the last glacial (~75-15 ka BP). The climate within the last glacial was cold and dry, with low arbor...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.853779 2023-05-15T16:30:15+02:00 High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey Pickarski, Nadine Kwiecien, Ola Langgut, Dafna Litt, Thomas LATITUDE: 38.667000 * LONGITUDE: 42.669000 2015-10-06 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.853779 https://doi.org/10.1594/PANGAEA.853779 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.853779 https://doi.org/10.1594/PANGAEA.853779 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Pickarski, Nadine; Kwiecien, Ola; Langgut, Dafna; Litt, Thomas (2015): Abrupt climate and vegetation variability of eastern Anatolia during the last glacial. Climate of the Past, 11(11), 1491-1505, https://doi.org/10.5194/cp-11-1491-2015 Dataset 2015 ftpangaea https://doi.org/10.1594/PANGAEA.853779 https://doi.org/10.5194/cp-11-1491-2015 2023-01-20T07:33:35Z Detailed analyses of the Lake Van pollen, Ca/K ratio and stable oxygen isotope record allow the identification of millennial-scale vegetation and environmental changes in eastern Anatolia throughout the last glacial (~75-15 ka BP). The climate within the last glacial was cold and dry, with low arboreal pollen (AP) levels. The driest and coldest period corresponds to Marine Isotope Stage (MIS) 2 (~28-14.5 ka BP) dominated by the highest values of xerophytic steppe vegetation. Our high-resolution multi proxy record shows rapid expansions and contractions of tree populations that reflects variability in temperature and moisture availability. This rapid vegetation and environmental changes can be linked to the stadial-interstadial pattern of the Dansgaard-Oeschger (DO) events as recorded in the Greenland ice cores. Periods of reduced moisture availability were characterized by enhanced xerophytic species and high terrigenous input from the Lake Van catchment area. Furthermore, comparison with the marine realm reveals that the complex atmosphere-ocean interaction can be explained by the strength and position of the westerlies, which is responsible for the supply of humidity in eastern Anatolia. Influenced by diverse topography of the Lake Van catchment, larger DO interstadials (e.g. DO 19, 17-16, 14, 12 and 8) show the highest expansion of temperate species within the last glacial. However, Heinrich events (HE), characterized by highest concentrations of ice-rafted debris (IRD) in marine sediments, are identified in eastern Anatolia by AP values not lower and high steppe components not more abundant than during DO stadials. In addition, this work is a first attempt to establish a continuous microscopic charcoal record over the last glacial in the Near East, which documents an initial immediate response to millennial-scale climate and environmental variability and enables us to shed light on the history of fire activity during the last glacial. Dataset Greenland Greenland ice cores PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(42.669000,42.669000,38.667000,38.667000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
description |
Detailed analyses of the Lake Van pollen, Ca/K ratio and stable oxygen isotope record allow the identification of millennial-scale vegetation and environmental changes in eastern Anatolia throughout the last glacial (~75-15 ka BP). The climate within the last glacial was cold and dry, with low arboreal pollen (AP) levels. The driest and coldest period corresponds to Marine Isotope Stage (MIS) 2 (~28-14.5 ka BP) dominated by the highest values of xerophytic steppe vegetation. Our high-resolution multi proxy record shows rapid expansions and contractions of tree populations that reflects variability in temperature and moisture availability. This rapid vegetation and environmental changes can be linked to the stadial-interstadial pattern of the Dansgaard-Oeschger (DO) events as recorded in the Greenland ice cores. Periods of reduced moisture availability were characterized by enhanced xerophytic species and high terrigenous input from the Lake Van catchment area. Furthermore, comparison with the marine realm reveals that the complex atmosphere-ocean interaction can be explained by the strength and position of the westerlies, which is responsible for the supply of humidity in eastern Anatolia. Influenced by diverse topography of the Lake Van catchment, larger DO interstadials (e.g. DO 19, 17-16, 14, 12 and 8) show the highest expansion of temperate species within the last glacial. However, Heinrich events (HE), characterized by highest concentrations of ice-rafted debris (IRD) in marine sediments, are identified in eastern Anatolia by AP values not lower and high steppe components not more abundant than during DO stadials. In addition, this work is a first attempt to establish a continuous microscopic charcoal record over the last glacial in the Near East, which documents an initial immediate response to millennial-scale climate and environmental variability and enables us to shed light on the history of fire activity during the last glacial. |
format |
Dataset |
author |
Pickarski, Nadine Kwiecien, Ola Langgut, Dafna Litt, Thomas |
spellingShingle |
Pickarski, Nadine Kwiecien, Ola Langgut, Dafna Litt, Thomas High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
author_facet |
Pickarski, Nadine Kwiecien, Ola Langgut, Dafna Litt, Thomas |
author_sort |
Pickarski, Nadine |
title |
High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
title_short |
High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
title_full |
High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
title_fullStr |
High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
title_full_unstemmed |
High-resolution multi-proxy record of the last glacial period from Lake Van, eastern Anatolian high plateau, Turkey |
title_sort |
high-resolution multi-proxy record of the last glacial period from lake van, eastern anatolian high plateau, turkey |
publisher |
PANGAEA |
publishDate |
2015 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.853779 https://doi.org/10.1594/PANGAEA.853779 |
op_coverage |
LATITUDE: 38.667000 * LONGITUDE: 42.669000 |
long_lat |
ENVELOPE(42.669000,42.669000,38.667000,38.667000) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice cores |
genre_facet |
Greenland Greenland ice cores |
op_source |
Supplement to: Pickarski, Nadine; Kwiecien, Ola; Langgut, Dafna; Litt, Thomas (2015): Abrupt climate and vegetation variability of eastern Anatolia during the last glacial. Climate of the Past, 11(11), 1491-1505, https://doi.org/10.5194/cp-11-1491-2015 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.853779 https://doi.org/10.1594/PANGAEA.853779 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.853779 https://doi.org/10.5194/cp-11-1491-2015 |
_version_ |
1766019962397261824 |