Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica
In this paper we reconstruct hydrological variability in Lake Baikal during Marine Isotope Stage 11 (MIS 11) (427-362 ka BP) from oxygen isotope analysis of diatom silica. Highest δ18Odiatom values are found during MIS 11.3, highlighting the dominance of hydrological input from rivers flowing into t...
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Online Access: | https://doi.org/10.1002/jqs.1174 https://nottingham-repository.worktribe.com/output/3179497 |
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ftunnottinghamrr:oai:nottingham-repository.worktribe.com:3179497 2023-05-15T17:34:06+02:00 Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica Mackay, Anson W. Karabanov, Eugene Leng, Melanie J. Sloane, Hilary J. Morley, David W. Panizzo, Virginia N. Khursevich, Galina Williams, Douglas 2008-04-28 https://doi.org/10.1002/jqs.1174 https://nottingham-repository.worktribe.com/output/3179497 unknown Wiley https://nottingham-repository.worktribe.com/output/3179497 Journal of Quaternary Science Volume 23 Issue 4 Pagination 365-374 doi:https://doi.org/10.1002/jqs.1174 0267-8179 doi:10.1002/jqs.1174 Journal Article 2008 ftunnottinghamrr https://doi.org/10.1002/jqs.1174 2022-11-10T23:07:47Z In this paper we reconstruct hydrological variability in Lake Baikal during Marine Isotope Stage 11 (MIS 11) (427-362 ka BP) from oxygen isotope analysis of diatom silica. Highest δ18Odiatom values are found during MIS 11.3, highlighting the dominance of hydrological input from rivers flowing into the south and central basins of Lake Baikal, especially the Selenga River. Hydrological input from south basin rivers dominated for over 30 ka. However, there is evidence from both biogenic silica and δ18Odiatom records for an abrupt cooling event at ca. 390 ka BP. Stadial conditions at this time are coincident with an iceberg discharge event into the North Atlantic. The decline in δ18Odiatom values suggests increasing proportion of hydrological input from rivers to the north of Lake Baikal, due to greater influence of winter precipitation and snow-melt. After a period of interstadial conditions during the early stages of MIS 11.1, biogenic silica δ18Odiatom values decline, mirroring the slow growth in Northern Hemisphere ice sheets. Despite rigorous cleaning procedures, palaeoclimatic inferences need to be treated with caution due to contamination of the δ18Odiatom record; during stadial and glacial periods, contamination of the δ18Odiatom record is even more significant. © Natural Environment Research Council (NERC) copyright 2008. Reproduced with the permission of NERC. Published by John Wiley & Sons, Ltd. Article in Journal/Newspaper North Atlantic University of Nottingham: Repository@Nottingham Journal of Quaternary Science 23 4 365 374 |
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University of Nottingham: Repository@Nottingham |
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In this paper we reconstruct hydrological variability in Lake Baikal during Marine Isotope Stage 11 (MIS 11) (427-362 ka BP) from oxygen isotope analysis of diatom silica. Highest δ18Odiatom values are found during MIS 11.3, highlighting the dominance of hydrological input from rivers flowing into the south and central basins of Lake Baikal, especially the Selenga River. Hydrological input from south basin rivers dominated for over 30 ka. However, there is evidence from both biogenic silica and δ18Odiatom records for an abrupt cooling event at ca. 390 ka BP. Stadial conditions at this time are coincident with an iceberg discharge event into the North Atlantic. The decline in δ18Odiatom values suggests increasing proportion of hydrological input from rivers to the north of Lake Baikal, due to greater influence of winter precipitation and snow-melt. After a period of interstadial conditions during the early stages of MIS 11.1, biogenic silica δ18Odiatom values decline, mirroring the slow growth in Northern Hemisphere ice sheets. Despite rigorous cleaning procedures, palaeoclimatic inferences need to be treated with caution due to contamination of the δ18Odiatom record; during stadial and glacial periods, contamination of the δ18Odiatom record is even more significant. © Natural Environment Research Council (NERC) copyright 2008. Reproduced with the permission of NERC. Published by John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Mackay, Anson W. Karabanov, Eugene Leng, Melanie J. Sloane, Hilary J. Morley, David W. Panizzo, Virginia N. Khursevich, Galina Williams, Douglas |
spellingShingle |
Mackay, Anson W. Karabanov, Eugene Leng, Melanie J. Sloane, Hilary J. Morley, David W. Panizzo, Virginia N. Khursevich, Galina Williams, Douglas Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
author_facet |
Mackay, Anson W. Karabanov, Eugene Leng, Melanie J. Sloane, Hilary J. Morley, David W. Panizzo, Virginia N. Khursevich, Galina Williams, Douglas |
author_sort |
Mackay, Anson W. |
title |
Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
title_short |
Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
title_full |
Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
title_fullStr |
Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
title_full_unstemmed |
Reconstructing hydrological variability in Lake Baikal during MIS 11: An application of oxygen isotope analysis of diatom silica |
title_sort |
reconstructing hydrological variability in lake baikal during mis 11: an application of oxygen isotope analysis of diatom silica |
publisher |
Wiley |
publishDate |
2008 |
url |
https://doi.org/10.1002/jqs.1174 https://nottingham-repository.worktribe.com/output/3179497 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://nottingham-repository.worktribe.com/output/3179497 Journal of Quaternary Science Volume 23 Issue 4 Pagination 365-374 doi:https://doi.org/10.1002/jqs.1174 0267-8179 doi:10.1002/jqs.1174 |
op_doi |
https://doi.org/10.1002/jqs.1174 |
container_title |
Journal of Quaternary Science |
container_volume |
23 |
container_issue |
4 |
container_start_page |
365 |
op_container_end_page |
374 |
_version_ |
1766132812651429888 |