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
(2004) In The Holocene 14(5). p.732-746- Abstract
- A sediment core from Lake Pichozero (61degrees46'; N, 37degrees25'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12800-9300 cal. BP). The chronology of the sequence is constrained by varve counting and AMS C-14 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 11500 cal. BP, air temperatures and lake productivity increased and Betula pubescens and Populus tremula... (More)
- A sediment core from Lake Pichozero (61degrees46'; N, 37degrees25'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12800-9300 cal. BP). The chronology of the sequence is constrained by varve counting and AMS C-14 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 11500 cal. BP, air temperatures and lake productivity increased and Betula pubescens and Populus tremula started to migrate into the area, followed by Picea abies at 10750 cal. BP. Although lake productivity decreased at around 11000 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 similar to11200 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 10000 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/268564
- author
- Wohlfarth, B ; Schwark, L ; Bennike, O ; Filimonova, L ; Tarasov, P ; Björkman, Leif LU ; Brunnberg, L ; Demidov, I and Possnert, G
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- lacustrine sediments, palaeoclimate, palaeoenvironment, multiproxy study, early Holocene, northwestern Russia, Lateglacial
- in
- The Holocene
- volume
- 14
- issue
- 5
- pages
- 732 - 746
- publisher
- SAGE Publications
- external identifiers
-
- wos:000223638700009
- scopus:4544365254
- ISSN
- 0959-6836
- DOI
- 10.1191/0959683604hl751rp
- language
- English
- LU publication?
- yes
- id
- a0e41828-921a-4fa1-917d-beb3e9e95bd9 (old id 268564)
- date added to LUP
- 2016-04-01 11:44:36
- date last changed
- 2022-01-26 17:34:24
@article{a0e41828-921a-4fa1-917d-beb3e9e95bd9,
abstract = {{A sediment core from Lake Pichozero (61degrees46'; N, 37degrees25'; E 118 m a.s.l.) provides information on the environmental and climatic conditions in southeastern Russian Karelia during the Lateglacial and early Holocene (12800-9300 cal. BP). The chronology of the sequence is constrained by varve counting and AMS C-14 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 11500 cal. BP, air temperatures and lake productivity increased and Betula pubescens and Populus tremula started to migrate into the area, followed by Picea abies at 10750 cal. BP. Although lake productivity decreased at around 11000 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 similar to11200 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 10000 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.}},
author = {{Wohlfarth, B and Schwark, L and Bennike, O and Filimonova, L and Tarasov, P and Björkman, Leif and Brunnberg, L and Demidov, I and Possnert, G}},
issn = {{0959-6836}},
keywords = {{lacustrine sediments; palaeoclimate; palaeoenvironment; multiproxy study; early Holocene; northwestern Russia; Lateglacial}},
language = {{eng}},
number = {{5}},
pages = {{732--746}},
publisher = {{SAGE Publications}},
series = {{The Holocene}},
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}},
url = {{http://dx.doi.org/10.1191/0959683604hl751rp}},
doi = {{10.1191/0959683604hl751rp}},
volume = {{14}},
year = {{2004}},
}