Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses
A 318-metre-long sedimentary profile drilled by the International Continental Scientific Drilling Program (ICDP) at Site 5011-1 in Lake El'gygytgyn, Far East Russian Arctic, has been analysed for its sedimentologic response to global climate modes by chronostratigraphic methods. The 12 km wide...
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ftdoajarticles:oai:doaj.org/article:a9db4e9a18fa4fd7b9ce1fc5217b4065 2023-05-15T15:09:53+02:00 Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses N. R. Nowaczyk E. M. Haltia D. Ulbricht V. Wennrich M. A. Sauerbrey P. Rosén H. Vogel A. Francke C. Meyer-Jacob A. A. Andreev A. V. Lozhkin 2013-11-01T00:00:00Z https://doi.org/10.5194/cp-9-2413-2013 https://doaj.org/article/a9db4e9a18fa4fd7b9ce1fc5217b4065 EN eng Copernicus Publications http://www.clim-past.net/9/2413/2013/cp-9-2413-2013.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-9-2413-2013 https://doaj.org/article/a9db4e9a18fa4fd7b9ce1fc5217b4065 Climate of the Past, Vol 9, Iss 6, Pp 2413-2432 (2013) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2013 ftdoajarticles https://doi.org/10.5194/cp-9-2413-2013 2022-12-30T23:14:47Z A 318-metre-long sedimentary profile drilled by the International Continental Scientific Drilling Program (ICDP) at Site 5011-1 in Lake El'gygytgyn, Far East Russian Arctic, has been analysed for its sedimentologic response to global climate modes by chronostratigraphic methods. The 12 km wide lake is sited off-centre in an 18 km large crater that was created by the impact of a meteorite 3.58 Ma ago. Since then sediments have been continuously deposited. For establishing their chronology, major reversals of the earth's magnetic field provided initial tie points for the age model, confirming that the impact occurred in the earliest geomagnetic Gauss chron. Various stratigraphic parameters, reflecting redox conditions at the lake floor and climatic conditions in the catchment were tuned synchronously to Northern Hemisphere insolation variations and the marine oxygen isotope stack, respectively. Thus, a robust age model comprising more than 600 tie points could be defined. It could be shown that deposition of sediments in Lake El'gygytgyn occurred in concert with global climatic cycles. The upper ~160 m of sediments represent the past 3.3 Ma, equivalent to sedimentation rates of 4 to 5 cm ka −1 , whereas the lower 160 m represent just the first 0.3 Ma after the impact, equivalent to sedimentation rates in the order of 45 cm ka −1 . This study also provides orbitally tuned ages for a total of 8 tephras deposited in Lake El'gygytgyn. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Climate of the Past 9 6 2413 2432 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 N. R. Nowaczyk E. M. Haltia D. Ulbricht V. Wennrich M. A. Sauerbrey P. Rosén H. Vogel A. Francke C. Meyer-Jacob A. A. Andreev A. V. Lozhkin Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
A 318-metre-long sedimentary profile drilled by the International Continental Scientific Drilling Program (ICDP) at Site 5011-1 in Lake El'gygytgyn, Far East Russian Arctic, has been analysed for its sedimentologic response to global climate modes by chronostratigraphic methods. The 12 km wide lake is sited off-centre in an 18 km large crater that was created by the impact of a meteorite 3.58 Ma ago. Since then sediments have been continuously deposited. For establishing their chronology, major reversals of the earth's magnetic field provided initial tie points for the age model, confirming that the impact occurred in the earliest geomagnetic Gauss chron. Various stratigraphic parameters, reflecting redox conditions at the lake floor and climatic conditions in the catchment were tuned synchronously to Northern Hemisphere insolation variations and the marine oxygen isotope stack, respectively. Thus, a robust age model comprising more than 600 tie points could be defined. It could be shown that deposition of sediments in Lake El'gygytgyn occurred in concert with global climatic cycles. The upper ~160 m of sediments represent the past 3.3 Ma, equivalent to sedimentation rates of 4 to 5 cm ka −1 , whereas the lower 160 m represent just the first 0.3 Ma after the impact, equivalent to sedimentation rates in the order of 45 cm ka −1 . This study also provides orbitally tuned ages for a total of 8 tephras deposited in Lake El'gygytgyn. |
format |
Article in Journal/Newspaper |
author |
N. R. Nowaczyk E. M. Haltia D. Ulbricht V. Wennrich M. A. Sauerbrey P. Rosén H. Vogel A. Francke C. Meyer-Jacob A. A. Andreev A. V. Lozhkin |
author_facet |
N. R. Nowaczyk E. M. Haltia D. Ulbricht V. Wennrich M. A. Sauerbrey P. Rosén H. Vogel A. Francke C. Meyer-Jacob A. A. Andreev A. V. Lozhkin |
author_sort |
N. R. Nowaczyk |
title |
Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
title_short |
Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
title_full |
Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
title_fullStr |
Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
title_full_unstemmed |
Chronology of Lake El'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
title_sort |
chronology of lake el'gygytgyn sediments – a combined magnetostratigraphic, palaeoclimatic and orbital tuning study based on multi-parameter analyses |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/cp-9-2413-2013 https://doaj.org/article/a9db4e9a18fa4fd7b9ce1fc5217b4065 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Climate of the Past, Vol 9, Iss 6, Pp 2413-2432 (2013) |
op_relation |
http://www.clim-past.net/9/2413/2013/cp-9-2413-2013.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-9-2413-2013 https://doaj.org/article/a9db4e9a18fa4fd7b9ce1fc5217b4065 |
op_doi |
https://doi.org/10.5194/cp-9-2413-2013 |
container_title |
Climate of the Past |
container_volume |
9 |
container_issue |
6 |
container_start_page |
2413 |
op_container_end_page |
2432 |
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1766340983952244736 |