Chronostratigraphy of the 600,000 year old continental record of Lake Van
Lake Van sediment cores from the Ahlat Ridge and Northern Basin drill sites of the ICDP project PALEOVAN contain a wealth of information about past environmental processes. The sedimentary sequence was dated using climatostratigraphic alignment, varve chronology, tephrostratigraphy, argon-argon sing...
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ftunivbern:oai:boris.unibe.ch:50755 2023-08-20T04:06:17+02:00 Chronostratigraphy of the 600,000 year old continental record of Lake Van Stockhecke, Mona Kwiecien, Ola Vigliotti, Luigi Anselmetti, Flavio Beer, Jürg Cagatay, Namik Channel, James E T Kipfer, Rolf Lachner, Johannes Litt, Thomas Pickarski, Nadine Sturm, Michael 2014 application/pdf https://boris.unibe.ch/50755/1/StockheckeQSR.pdf https://boris.unibe.ch/50755/ eng eng Pergamon https://boris.unibe.ch/50755/ info:eu-repo/semantics/restrictedAccess Stockhecke, Mona; Kwiecien, Ola; Vigliotti, Luigi; Anselmetti, Flavio; Beer, Jürg; Cagatay, Namik; Channel, James E T; Kipfer, Rolf; Lachner, Johannes; Litt, Thomas; Pickarski, Nadine; Sturm, Michael (2014). Chronostratigraphy of the 600,000 year old continental record of Lake Van. Quaternary Science Reviews, 104, pp. 8-17. Pergamon 10.1016/j.quascirev.2014.04.008 <http://dx.doi.org/10.1016/j.quascirev.2014.04.008> 550 Earth sciences & geology info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed 2014 ftunivbern https://doi.org/10.1016/j.quascirev.2014.04.008 2023-07-31T21:07:51Z Lake Van sediment cores from the Ahlat Ridge and Northern Basin drill sites of the ICDP project PALEOVAN contain a wealth of information about past environmental processes. The sedimentary sequence was dated using climatostratigraphic alignment, varve chronology, tephrostratigraphy, argon-argon single-crystal dating, radiocarbon dating, magnetostratigraphy, and cosmogenic nuclides. Based on the lithostratigraphic framework, the different age constraints are compiled and a robust and precise chronology of the 600,000 year-old Lake Van record is constructed. Proxy records of total organic carbon content and sediment color, together with the calcium/potassium-ratios and arboreal pollen percentages of the 174-meter-long Ahlat Ridge record, mimic the Greenland isotope stratotype (NGRIP). Therefore, the proxy records are systematically aligned to the onsets of interstadials reflected in the NGRIP or synthesized Greenland ice-core stratigraphy. The chronology is constructed using 27 age control points derived from visual synchronization with the GICC05 timescale, an absolutely-dated speleothem record (e.g., Hulu, Sanbao, Linzhu cave) and the Epica Dome C timescale. In addition, the uppermost part of the sequence is complemented with four ages from Holocene varve chronology and two calibrated radiocarbon ages. Furthermore, nine argon-argon ages and a comparison of the relative paleointensity record of the magnetic field with reference curve PISO-1500 confirm the accuracy of the age model. Also the identification of the Laschamp event via measurements of 10Be in the sediment confirms the presented age model. The chronology of the Ahlat Ridge record is transferred to the 79-meter-long event-corrected composite record from the Northern Basin and supplemented by additional radiocarbon dating on organic marco-remains. The basal age of the Northern Basin record is estimated at ~90 ka. The variations of the time series of total organic carbon content, the Ca/K ratio, and the arboreal pollen percentages illustrate that the ... Article in Journal/Newspaper EPICA Greenland Greenland ice core ice core NGRIP BORIS (Bern Open Repository and Information System, University of Bern) Greenland Hulu ENVELOPE(8.610,8.610,62.837,62.837) Quaternary Science Reviews 104 8 17 |
institution |
Open Polar |
collection |
BORIS (Bern Open Repository and Information System, University of Bern) |
op_collection_id |
ftunivbern |
language |
English |
topic |
550 Earth sciences & geology |
spellingShingle |
550 Earth sciences & geology Stockhecke, Mona Kwiecien, Ola Vigliotti, Luigi Anselmetti, Flavio Beer, Jürg Cagatay, Namik Channel, James E T Kipfer, Rolf Lachner, Johannes Litt, Thomas Pickarski, Nadine Sturm, Michael Chronostratigraphy of the 600,000 year old continental record of Lake Van |
topic_facet |
550 Earth sciences & geology |
description |
Lake Van sediment cores from the Ahlat Ridge and Northern Basin drill sites of the ICDP project PALEOVAN contain a wealth of information about past environmental processes. The sedimentary sequence was dated using climatostratigraphic alignment, varve chronology, tephrostratigraphy, argon-argon single-crystal dating, radiocarbon dating, magnetostratigraphy, and cosmogenic nuclides. Based on the lithostratigraphic framework, the different age constraints are compiled and a robust and precise chronology of the 600,000 year-old Lake Van record is constructed. Proxy records of total organic carbon content and sediment color, together with the calcium/potassium-ratios and arboreal pollen percentages of the 174-meter-long Ahlat Ridge record, mimic the Greenland isotope stratotype (NGRIP). Therefore, the proxy records are systematically aligned to the onsets of interstadials reflected in the NGRIP or synthesized Greenland ice-core stratigraphy. The chronology is constructed using 27 age control points derived from visual synchronization with the GICC05 timescale, an absolutely-dated speleothem record (e.g., Hulu, Sanbao, Linzhu cave) and the Epica Dome C timescale. In addition, the uppermost part of the sequence is complemented with four ages from Holocene varve chronology and two calibrated radiocarbon ages. Furthermore, nine argon-argon ages and a comparison of the relative paleointensity record of the magnetic field with reference curve PISO-1500 confirm the accuracy of the age model. Also the identification of the Laschamp event via measurements of 10Be in the sediment confirms the presented age model. The chronology of the Ahlat Ridge record is transferred to the 79-meter-long event-corrected composite record from the Northern Basin and supplemented by additional radiocarbon dating on organic marco-remains. The basal age of the Northern Basin record is estimated at ~90 ka. The variations of the time series of total organic carbon content, the Ca/K ratio, and the arboreal pollen percentages illustrate that the ... |
format |
Article in Journal/Newspaper |
author |
Stockhecke, Mona Kwiecien, Ola Vigliotti, Luigi Anselmetti, Flavio Beer, Jürg Cagatay, Namik Channel, James E T Kipfer, Rolf Lachner, Johannes Litt, Thomas Pickarski, Nadine Sturm, Michael |
author_facet |
Stockhecke, Mona Kwiecien, Ola Vigliotti, Luigi Anselmetti, Flavio Beer, Jürg Cagatay, Namik Channel, James E T Kipfer, Rolf Lachner, Johannes Litt, Thomas Pickarski, Nadine Sturm, Michael |
author_sort |
Stockhecke, Mona |
title |
Chronostratigraphy of the 600,000 year old continental record of Lake Van |
title_short |
Chronostratigraphy of the 600,000 year old continental record of Lake Van |
title_full |
Chronostratigraphy of the 600,000 year old continental record of Lake Van |
title_fullStr |
Chronostratigraphy of the 600,000 year old continental record of Lake Van |
title_full_unstemmed |
Chronostratigraphy of the 600,000 year old continental record of Lake Van |
title_sort |
chronostratigraphy of the 600,000 year old continental record of lake van |
publisher |
Pergamon |
publishDate |
2014 |
url |
https://boris.unibe.ch/50755/1/StockheckeQSR.pdf https://boris.unibe.ch/50755/ |
long_lat |
ENVELOPE(8.610,8.610,62.837,62.837) |
geographic |
Greenland Hulu |
geographic_facet |
Greenland Hulu |
genre |
EPICA Greenland Greenland ice core ice core NGRIP |
genre_facet |
EPICA Greenland Greenland ice core ice core NGRIP |
op_source |
Stockhecke, Mona; Kwiecien, Ola; Vigliotti, Luigi; Anselmetti, Flavio; Beer, Jürg; Cagatay, Namik; Channel, James E T; Kipfer, Rolf; Lachner, Johannes; Litt, Thomas; Pickarski, Nadine; Sturm, Michael (2014). Chronostratigraphy of the 600,000 year old continental record of Lake Van. Quaternary Science Reviews, 104, pp. 8-17. Pergamon 10.1016/j.quascirev.2014.04.008 <http://dx.doi.org/10.1016/j.quascirev.2014.04.008> |
op_relation |
https://boris.unibe.ch/50755/ |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2014.04.008 |
container_title |
Quaternary Science Reviews |
container_volume |
104 |
container_start_page |
8 |
op_container_end_page |
17 |
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1774717277922394112 |