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 (δ18Odiatom) preserved in sediment core Co 1309, and is complemented by a diatom assemblage analy...
Published in: | Boreas |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
WILEY-BLACKWELL PUBLISHING
2019
|
Subjects: | |
Online Access: | https://epic.awi.de/id/eprint/49214/ https://epic.awi.de/id/eprint/49214/1/Kostrova_et_al-2019-Boreas.pdf https://onlinelibrary.wiley.com/doi/full/10.1111/bor.12385 https://hdl.handle.net/10013/epic.ee0c8098-0909-4ff6-a6a4-5eeea3267b27 |
id |
ftawi:oai:epic.awi.de:49214 |
---|---|
record_format |
openpolar |
spelling |
ftawi:oai:epic.awi.de:49214 2024-09-15T18:26:28+00:00 Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes Kostrova, Svetlana Meyer, Hanno Bailey, Hannah Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yury A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard 2019 application/pdf https://epic.awi.de/id/eprint/49214/ https://epic.awi.de/id/eprint/49214/1/Kostrova_et_al-2019-Boreas.pdf https://onlinelibrary.wiley.com/doi/full/10.1111/bor.12385 https://hdl.handle.net/10013/epic.ee0c8098-0909-4ff6-a6a4-5eeea3267b27 unknown WILEY-BLACKWELL PUBLISHING https://epic.awi.de/id/eprint/49214/1/Kostrova_et_al-2019-Boreas.pdf Kostrova, S. orcid:0000-0003-1124-5559 , Meyer, H. orcid:0000-0003-4129-4706 , Bailey, H. , Ludikova, A. V. , Gromig, R. , Kuhn, G. orcid:0000-0001-6069-7485 , Shibaev, Y. A. , Kozachek, A. V. , Ekaykin, A. A. and Chapligin, B. (2019) Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes , Boreas, pp. 1-16 . doi:10.1111/bor.12385 <https://doi.org/10.1111/bor.12385> , hdl:10013/epic.ee0c8098-0909-4ff6-a6a4-5eeea3267b27 EPIC3Boreas, WILEY-BLACKWELL PUBLISHING, pp. 1-16, ISSN: 0300-9483 Article isiRev 2019 ftawi https://doi.org/10.1111/bor.12385 2024-06-24T04:22:11Z 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 (δ18Odiatom) 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 δ18Odiatom values range from +29.8 to +35.0‰, and relatively higher δ18Odiatom 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 δ18Odiatom 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 δ18Odiatom values, whereas lower lake levels cause higher δ18Odiatom 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 δ18Odiatom values around +33.5‰ characterize a persistent evaporative lake system throughout the Holocene. As the Lake Ladoga δ18Odiatom 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Boreas 48 2 361 376 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
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 (δ18Odiatom) 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 δ18Odiatom values range from +29.8 to +35.0‰, and relatively higher δ18Odiatom 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 δ18Odiatom 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 δ18Odiatom values, whereas lower lake levels cause higher δ18Odiatom 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 δ18Odiatom values around +33.5‰ characterize a persistent evaporative lake system throughout the Holocene. As the Lake Ladoga δ18Odiatom record is roughly in line with the 60°N summer insolation, a linkage to broader‐scale climate change is likely. |
format |
Article in Journal/Newspaper |
author |
Kostrova, Svetlana Meyer, Hanno Bailey, Hannah Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yury A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard |
spellingShingle |
Kostrova, Svetlana Meyer, Hanno Bailey, Hannah Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yury 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 Meyer, Hanno Bailey, Hannah Ludikova, Anna V. Gromig, Raphael Kuhn, Gerhard Shibaev, Yury A. Kozachek, Anna V. Ekaykin, Alexey A. Chapligin, Bernhard |
author_sort |
Kostrova, Svetlana |
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-BLACKWELL PUBLISHING |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/49214/ https://epic.awi.de/id/eprint/49214/1/Kostrova_et_al-2019-Boreas.pdf https://onlinelibrary.wiley.com/doi/full/10.1111/bor.12385 https://hdl.handle.net/10013/epic.ee0c8098-0909-4ff6-a6a4-5eeea3267b27 |
genre |
Northwest Russia |
genre_facet |
Northwest Russia |
op_source |
EPIC3Boreas, WILEY-BLACKWELL PUBLISHING, pp. 1-16, ISSN: 0300-9483 |
op_relation |
https://epic.awi.de/id/eprint/49214/1/Kostrova_et_al-2019-Boreas.pdf Kostrova, S. orcid:0000-0003-1124-5559 , Meyer, H. orcid:0000-0003-4129-4706 , Bailey, H. , Ludikova, A. V. , Gromig, R. , Kuhn, G. orcid:0000-0001-6069-7485 , Shibaev, Y. A. , Kozachek, A. V. , Ekaykin, A. A. and Chapligin, B. (2019) Holocene hydrological variability of Lake Ladoga, northwest Russia, as inferred from diatom oxygen isotopes , Boreas, pp. 1-16 . doi:10.1111/bor.12385 <https://doi.org/10.1111/bor.12385> , hdl:10013/epic.ee0c8098-0909-4ff6-a6a4-5eeea3267b27 |
op_doi |
https://doi.org/10.1111/bor.12385 |
container_title |
Boreas |
container_volume |
48 |
container_issue |
2 |
container_start_page |
361 |
op_container_end_page |
376 |
_version_ |
1810466949973409792 |