Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia
A sediment core from Lake Pichozero (6146'; N, 3725'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12 800-9300 cal. BP). The chronology of the sequence is constrainied by varve c...
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crsagepubl:10.1191/0959683604hl751rp 2024-06-23T07:50:43+00:00 Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia Wohlfarth, Barbara Schwark, Lorenz Bennike, Ole Filimonova, Ludmila Tarasov, Pavel Björkmanj, Leif Brunnberg, Lars Demidov, Igor Possnert, Goran 2004 http://dx.doi.org/10.1191/0959683604hl751rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl751rp en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 14, issue 5, page 732-746 ISSN 0959-6836 1477-0911 journal-article 2004 crsagepubl https://doi.org/10.1191/0959683604hl751rp 2024-06-11T04:31:39Z A sediment core from Lake Pichozero (6146'; N, 3725'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12 800-9300 cal. BP). The chronology of the sequence is constrainied by varve counting and AMS 14 C measurement of terrestrial plant macrofossils. Multiproxy analyses (magnetic susceptibility, grain size, TOC, TN, TS, Rock Eval, pollen and macrofossils) imply that cold and dry regional climatic conditions with sparse Arctic vegetation prevailed prior to 11500 cal. BP. Coincident with the transition to the Holocene at 11 500 cal. BP, air temperatures and lake productivity increased and Betula pubescens and Populus treinula started to migrate into the area, followed by Picea abies at 10 750 cal. BP. Although lake productivity decreased at around 11 000 cal. BP and remained low until 9600 cal. BP, pollen-based climate reconstructions imply variable climatic conditions in the region over time. Drier and colder summers prevailed from 11 200 to 10900 cal. BP, followed by an interval of higher annual temperatures and precipitation from 10900 to 10750 cal. BP. Lower annual temperatures and drier conditions existed from 10750 to 10200 cal. BP, and higher temperatures and precipitation are inferred between 10200 and 10000 cal. BP. Finally, declining temperatures and precipitation occurred from 10 000 cal. BP onwards, with a minimum at around 9600 cal. BP. These climatic shifts are temporally coincident with those recorded in North Atlantic terrestrial, marine and ice-core archives and indicate that relatively minor climate signals were transmitted further to the east. Article in Journal/Newspaper Arctic ice core karelia* Magnetic susceptibility North Atlantic SAGE Publications Arctic The Holocene 14 5 732 746 |
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Open Polar |
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SAGE Publications |
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crsagepubl |
language |
English |
description |
A sediment core from Lake Pichozero (6146'; N, 3725'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12 800-9300 cal. BP). The chronology of the sequence is constrainied by varve counting and AMS 14 C measurement of terrestrial plant macrofossils. Multiproxy analyses (magnetic susceptibility, grain size, TOC, TN, TS, Rock Eval, pollen and macrofossils) imply that cold and dry regional climatic conditions with sparse Arctic vegetation prevailed prior to 11500 cal. BP. Coincident with the transition to the Holocene at 11 500 cal. BP, air temperatures and lake productivity increased and Betula pubescens and Populus treinula started to migrate into the area, followed by Picea abies at 10 750 cal. BP. Although lake productivity decreased at around 11 000 cal. BP and remained low until 9600 cal. BP, pollen-based climate reconstructions imply variable climatic conditions in the region over time. Drier and colder summers prevailed from 11 200 to 10900 cal. BP, followed by an interval of higher annual temperatures and precipitation from 10900 to 10750 cal. BP. Lower annual temperatures and drier conditions existed from 10750 to 10200 cal. BP, and higher temperatures and precipitation are inferred between 10200 and 10000 cal. BP. Finally, declining temperatures and precipitation occurred from 10 000 cal. BP onwards, with a minimum at around 9600 cal. BP. These climatic shifts are temporally coincident with those recorded in North Atlantic terrestrial, marine and ice-core archives and indicate that relatively minor climate signals were transmitted further to the east. |
format |
Article in Journal/Newspaper |
author |
Wohlfarth, Barbara Schwark, Lorenz Bennike, Ole Filimonova, Ludmila Tarasov, Pavel Björkmanj, Leif Brunnberg, Lars Demidov, Igor Possnert, Goran |
spellingShingle |
Wohlfarth, Barbara Schwark, Lorenz Bennike, Ole Filimonova, Ludmila Tarasov, Pavel Björkmanj, Leif Brunnberg, Lars Demidov, Igor Possnert, Goran Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
author_facet |
Wohlfarth, Barbara Schwark, Lorenz Bennike, Ole Filimonova, Ludmila Tarasov, Pavel Björkmanj, Leif Brunnberg, Lars Demidov, Igor Possnert, Goran |
author_sort |
Wohlfarth, Barbara |
title |
Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
title_short |
Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
title_full |
Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
title_fullStr |
Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
title_full_unstemmed |
Unstable early-Holocene climatic and environmental conditions in northwestern Russia derived from a multidisciplinary study of a lake-sediment sequence from Pichozero, southeastern Russian Karelia |
title_sort |
unstable early-holocene climatic and environmental conditions in northwestern russia derived from a multidisciplinary study of a lake-sediment sequence from pichozero, southeastern russian karelia |
publisher |
SAGE Publications |
publishDate |
2004 |
url |
http://dx.doi.org/10.1191/0959683604hl751rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl751rp |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ice core karelia* Magnetic susceptibility North Atlantic |
genre_facet |
Arctic ice core karelia* Magnetic susceptibility North Atlantic |
op_source |
The Holocene volume 14, issue 5, page 732-746 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/0959683604hl751rp |
container_title |
The Holocene |
container_volume |
14 |
container_issue |
5 |
container_start_page |
732 |
op_container_end_page |
746 |
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1802641638870220800 |