Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn
To date, terrestrial archives of long-term climatic change within the Arctic have widely been restricted to ice cores from Greenland and, more recently, sediments from Lake El'gygytgyn in northeast Arctic Russia. Sediments from this lake contain a paleoclimate record of glacial-interglacial cyc...
Published in: | Climate of the Past |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2013
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Online Access: | https://risweb.st-andrews.ac.uk/portal/en/researchoutput/amplified-bioproductivity-during-transition-iv-332-000342-000-yr-ago(e9b037b1-6d21-4da5-bcdc-93993dbbaaf7).html https://doi.org/10.5194/cp-9-679-2013 https://research-repository.st-andrews.ac.uk/bitstream/10023/5058/1/Cunningham_2013_COTP_Amplified.pdf http://www.clim-past.net/9/679/2013/ |
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ftunstandrewcris:oai:risweb.st-andrews.ac.uk:publications/e9b037b1-6d21-4da5-bcdc-93993dbbaaf7 2023-05-15T14:53:38+02:00 Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn Cunningham, L. Vogel, H. Wennrich, V. Juschus, O. Nowaczyk, N. Rosen, P. 2013-03-14 application/pdf https://risweb.st-andrews.ac.uk/portal/en/researchoutput/amplified-bioproductivity-during-transition-iv-332-000342-000-yr-ago(e9b037b1-6d21-4da5-bcdc-93993dbbaaf7).html https://doi.org/10.5194/cp-9-679-2013 https://research-repository.st-andrews.ac.uk/bitstream/10023/5058/1/Cunningham_2013_COTP_Amplified.pdf http://www.clim-past.net/9/679/2013/ eng eng info:eu-repo/semantics/openAccess Cunningham , L , Vogel , H , Wennrich , V , Juschus , O , Nowaczyk , N & Rosen , P 2013 , ' Amplified bioproductivity during Transition IV (332 000-342 000 yr ago) : evidence from the geochemical record of Lake El'gygytgyn ' , Climate of the Past , vol. 9 , no. 2 , pp. 679-686 . https://doi.org/10.5194/cp-9-679-2013 Transform infrared-spectroscopy Climate variability Crater lake Organic-matter North-Atlantic Core PG1351 NE Russia Ice-core Siberia Sediments article 2013 ftunstandrewcris https://doi.org/10.5194/cp-9-679-2013 2022-06-02T07:43:31Z To date, terrestrial archives of long-term climatic change within the Arctic have widely been restricted to ice cores from Greenland and, more recently, sediments from Lake El'gygytgyn in northeast Arctic Russia. Sediments from this lake contain a paleoclimate record of glacial-interglacial cycles during the last three million years. Low-resolution studies at this lake have suggested that changes observed during Transition IV (the transition from marine isotope stage (MIS) 10 to MIS 9) are of greater amplitude than any observed since. In this study, geochemical parameters are used to infer past climatic conditions thus providing the first high-resolution analyses of Transition IV from a terrestrial Arctic setting. These results demonstrate that a significant shift in climate was subsequently followed by a rapid increase in biogenic silica (BSi) production. Following this sharp increase, bioproductivity remained high, but variable, for over a thousand years. This study reveals differences in the timing and magnitude of change within the ratio of silica to titanium (Si/Ti) and BSi records that would not be apparent in lower resolution studies. This has significant implications for the increasingly common use of Si/Ti data as an alternative to traditional BSi measurements. Article in Journal/Newspaper Arctic Greenland ice core North Atlantic Siberia University of St Andrews: Research Portal Arctic Crater Lake ENVELOPE(-60.667,-60.667,-62.983,-62.983) Greenland Climate of the Past 9 2 679 686 |
institution |
Open Polar |
collection |
University of St Andrews: Research Portal |
op_collection_id |
ftunstandrewcris |
language |
English |
topic |
Transform infrared-spectroscopy Climate variability Crater lake Organic-matter North-Atlantic Core PG1351 NE Russia Ice-core Siberia Sediments |
spellingShingle |
Transform infrared-spectroscopy Climate variability Crater lake Organic-matter North-Atlantic Core PG1351 NE Russia Ice-core Siberia Sediments Cunningham, L. Vogel, H. Wennrich, V. Juschus, O. Nowaczyk, N. Rosen, P. Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
topic_facet |
Transform infrared-spectroscopy Climate variability Crater lake Organic-matter North-Atlantic Core PG1351 NE Russia Ice-core Siberia Sediments |
description |
To date, terrestrial archives of long-term climatic change within the Arctic have widely been restricted to ice cores from Greenland and, more recently, sediments from Lake El'gygytgyn in northeast Arctic Russia. Sediments from this lake contain a paleoclimate record of glacial-interglacial cycles during the last three million years. Low-resolution studies at this lake have suggested that changes observed during Transition IV (the transition from marine isotope stage (MIS) 10 to MIS 9) are of greater amplitude than any observed since. In this study, geochemical parameters are used to infer past climatic conditions thus providing the first high-resolution analyses of Transition IV from a terrestrial Arctic setting. These results demonstrate that a significant shift in climate was subsequently followed by a rapid increase in biogenic silica (BSi) production. Following this sharp increase, bioproductivity remained high, but variable, for over a thousand years. This study reveals differences in the timing and magnitude of change within the ratio of silica to titanium (Si/Ti) and BSi records that would not be apparent in lower resolution studies. This has significant implications for the increasingly common use of Si/Ti data as an alternative to traditional BSi measurements. |
format |
Article in Journal/Newspaper |
author |
Cunningham, L. Vogel, H. Wennrich, V. Juschus, O. Nowaczyk, N. Rosen, P. |
author_facet |
Cunningham, L. Vogel, H. Wennrich, V. Juschus, O. Nowaczyk, N. Rosen, P. |
author_sort |
Cunningham, L. |
title |
Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
title_short |
Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
title_full |
Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
title_fullStr |
Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
title_full_unstemmed |
Amplified bioproductivity during Transition IV (332 000-342 000 yr ago):evidence from the geochemical record of Lake El'gygytgyn |
title_sort |
amplified bioproductivity during transition iv (332 000-342 000 yr ago):evidence from the geochemical record of lake el'gygytgyn |
publishDate |
2013 |
url |
https://risweb.st-andrews.ac.uk/portal/en/researchoutput/amplified-bioproductivity-during-transition-iv-332-000342-000-yr-ago(e9b037b1-6d21-4da5-bcdc-93993dbbaaf7).html https://doi.org/10.5194/cp-9-679-2013 https://research-repository.st-andrews.ac.uk/bitstream/10023/5058/1/Cunningham_2013_COTP_Amplified.pdf http://www.clim-past.net/9/679/2013/ |
long_lat |
ENVELOPE(-60.667,-60.667,-62.983,-62.983) |
geographic |
Arctic Crater Lake Greenland |
geographic_facet |
Arctic Crater Lake Greenland |
genre |
Arctic Greenland ice core North Atlantic Siberia |
genre_facet |
Arctic Greenland ice core North Atlantic Siberia |
op_source |
Cunningham , L , Vogel , H , Wennrich , V , Juschus , O , Nowaczyk , N & Rosen , P 2013 , ' Amplified bioproductivity during Transition IV (332 000-342 000 yr ago) : evidence from the geochemical record of Lake El'gygytgyn ' , Climate of the Past , vol. 9 , no. 2 , pp. 679-686 . https://doi.org/10.5194/cp-9-679-2013 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-9-679-2013 |
container_title |
Climate of the Past |
container_volume |
9 |
container_issue |
2 |
container_start_page |
679 |
op_container_end_page |
686 |
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