Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes
This article presents a new comprehensive assessment of the Holocene hydrological variability of Lake Ladoga, northwest Russia. The reconstruction is based on oxygen isotopes of lacustrine diatom silica (δ 18 O diatom ) preserved in sediment core Co 1309, and is complemented by a diatom assemblage a...
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crwiley:10.1111/bor.12385 2024-06-02T08:12:17+00:00 Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes Kostrova, Svetlana S. Meyer, Hanno Bailey, Hannah L. Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yuri A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard Bundesministerium für Bildung und Forschung 2019 http://dx.doi.org/10.1111/bor.12385 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12385 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12385 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12385 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 48, issue 2, page 361-376 ISSN 0300-9483 1502-3885 journal-article 2019 crwiley https://doi.org/10.1111/bor.12385 2024-05-03T11:54:40Z This article presents a new comprehensive assessment of the Holocene hydrological variability of Lake Ladoga, northwest Russia. The reconstruction is based on oxygen isotopes of lacustrine diatom silica (δ 18 O diatom ) preserved in sediment core Co 1309, and is complemented by a diatom assemblage analysis and a survey of modern isotope hydrology. The data indicate that Lake Ladoga has existed as a freshwater reservoir since at least 10.8 cal. ka BP . The δ 18 O diatom values range from +29.8 to +35.0‰, and relatively higher δ 18 O diatom values around +34.7‰ between c . 7.1 and 5.7 cal. ka BP are considered to reflect the Holocene Thermal Maximum. A continuous depletion in δ 18 O diatom since c . 6.1 cal. ka BP accelerates after c . 4 cal. ka BP , indicating Middle to Late Holocene cooling that culminates during the interval 0.8–0.2 cal. ka BP , corresponding to the Little Ice Age. Lake‐level rises result in lower δ 18 O diatom values, whereas lower lake levels cause higher δ 18 O diatom values. The diatom isotope record gives an indication for a rather early opening of the Neva River outflow at c . 4.4–4.0 cal. ka BP . Generally, overall high δ 18 O diatom values around +33.5‰ characterize a persistent evaporative lake system throughout the Holocene. As the Lake Ladoga δ 18 O diatom record is roughly in line with the 60°N summer insolation, a linkage to broader‐scale climate change is likely. Article in Journal/Newspaper Northwest Russia Wiley Online Library Age Lake ENVELOPE(-97.607,-97.607,56.000,56.000) Lower Lake ENVELOPE(-129.290,-129.290,53.428,53.428) Neva ENVELOPE(15.407,15.407,68.061,68.061) Boreas 48 2 361 376 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
This article presents a new comprehensive assessment of the Holocene hydrological variability of Lake Ladoga, northwest Russia. The reconstruction is based on oxygen isotopes of lacustrine diatom silica (δ 18 O diatom ) preserved in sediment core Co 1309, and is complemented by a diatom assemblage analysis and a survey of modern isotope hydrology. The data indicate that Lake Ladoga has existed as a freshwater reservoir since at least 10.8 cal. ka BP . The δ 18 O diatom values range from +29.8 to +35.0‰, and relatively higher δ 18 O diatom values around +34.7‰ between c . 7.1 and 5.7 cal. ka BP are considered to reflect the Holocene Thermal Maximum. A continuous depletion in δ 18 O diatom since c . 6.1 cal. ka BP accelerates after c . 4 cal. ka BP , indicating Middle to Late Holocene cooling that culminates during the interval 0.8–0.2 cal. ka BP , corresponding to the Little Ice Age. Lake‐level rises result in lower δ 18 O diatom values, whereas lower lake levels cause higher δ 18 O diatom values. The diatom isotope record gives an indication for a rather early opening of the Neva River outflow at c . 4.4–4.0 cal. ka BP . Generally, overall high δ 18 O diatom values around +33.5‰ characterize a persistent evaporative lake system throughout the Holocene. As the Lake Ladoga δ 18 O diatom record is roughly in line with the 60°N summer insolation, a linkage to broader‐scale climate change is likely. |
author2 |
Bundesministerium für Bildung und Forschung |
format |
Article in Journal/Newspaper |
author |
Kostrova, Svetlana S. Meyer, Hanno Bailey, Hannah L. Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yuri A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard |
spellingShingle |
Kostrova, Svetlana S. Meyer, Hanno Bailey, Hannah L. Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yuri A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
author_facet |
Kostrova, Svetlana S. Meyer, Hanno Bailey, Hannah L. Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yuri A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard |
author_sort |
Kostrova, Svetlana S. |
title |
Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
title_short |
Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
title_full |
Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
title_fullStr |
Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
title_full_unstemmed |
Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes |
title_sort |
holocene hydrological variability of lake ladoga, northwest russia, as inferred from diatom oxygen isotopes |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/bor.12385 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12385 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12385 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12385 |
long_lat |
ENVELOPE(-97.607,-97.607,56.000,56.000) ENVELOPE(-129.290,-129.290,53.428,53.428) ENVELOPE(15.407,15.407,68.061,68.061) |
geographic |
Age Lake Lower Lake Neva |
geographic_facet |
Age Lake Lower Lake Neva |
genre |
Northwest Russia |
genre_facet |
Northwest Russia |
op_source |
Boreas volume 48, issue 2, page 361-376 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12385 |
container_title |
Boreas |
container_volume |
48 |
container_issue |
2 |
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361 |
op_container_end_page |
376 |
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1800758680825626624 |