Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time
Arctic warming and permafrost thaw visibly expose changes in the landscape of the Lena River delta, the largest Arctic delta. Determining the past and modern river regime of thick deltaic deposits shaping the Lena River mouth in north‐eastern Siberia is critical for understanding the history of delt...
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ftsubggeo:oai:e-docs.geo-leo.de:11858/11185 2023-12-17T10:25:52+01:00 Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time Schwamborn, Georg Schirrmeister, Lutz Mohammadi, Ali Meyer, Hanno Kartoziia, Andrei Maggioni, Flavio Strauss, Jens 1 Eurasia Institute of Earth Sciences Istanbul Technical University Maslak/Istanbul 34469 Turkey 2 Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam 14473 Germany 3 A.A. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk 630090 Russia 2022-09-29 https://doi.org/10.1111/sed.13037 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11185 eng eng doi:10.1111/sed.13037 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11185 This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. ddc:551 Lena River north‐eastern Siberia palaeoenvironment permafrost Quaternary doc-type:article 2022 ftsubggeo https://doi.org/10.1111/sed.13037 2023-11-19T23:12:31Z Arctic warming and permafrost thaw visibly expose changes in the landscape of the Lena River delta, the largest Arctic delta. Determining the past and modern river regime of thick deltaic deposits shaping the Lena River mouth in north‐eastern Siberia is critical for understanding the history of delta formation and carbon sequestration. Using a 65 m long sediment core from the delta apex a set of sedimentological techniques is applied to aid in reconstructing the Lena River history. The analysis includes: (i) grain‐size measurements and the determination of the bedload composition; (ii) X‐ray fluorescence, X‐ray diffractometry, and magnetic susceptibility measurements and heavy mineral analysis for tracking mineral change; (iii) pH, electrical conductivity, ionic concentrations, and the δ 18 O and δD stable isotope composition from ground ice for reconstructing permafrost formation. In addition; (iv) total and dissolved organic carbon is assessed. Chronology is based on; (vi) radiocarbon dating of organic material (accelerator mass spectrometry and conventional) and is complemented by two infrared – optically stimulated luminescence dates. The record stretches back approximately to Marine Isotope Stage 7. It holds periods from traction, over saltation, to suspension load sedimentation. Minerogenic signals do not indicate provenance change over time. They rather reflect the change from high energy to a lower energy regime after Last Glacial Maximum time parallel to the fining‐up grain‐size trend. A prominent minimum in the ground ice stable isotope record at early Holocene highlights that a river arm migration and an associated refreeze of the underlying river talik has altered the isotopic composition at that time. Fluvial re‐routing might be explained by internal dynamics in the Lena River lowland or due to a tectonic movement, since the study area is placed in a zone of seismic activity. At the southern Laptev Sea margin, onshore continental compressional patterns are bordering offshore extensional normal ... Article in Journal/Newspaper Arctic Ice laptev Laptev Sea lena river Magnetic susceptibility permafrost Siberia GEO-LEOe-docs (FID GEO) Arctic Laptev Sea Talik ENVELOPE(146.601,146.601,59.667,59.667) Sedimentology 70 1 235 258 |
institution |
Open Polar |
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GEO-LEOe-docs (FID GEO) |
op_collection_id |
ftsubggeo |
language |
English |
topic |
ddc:551 Lena River north‐eastern Siberia palaeoenvironment permafrost Quaternary |
spellingShingle |
ddc:551 Lena River north‐eastern Siberia palaeoenvironment permafrost Quaternary Schwamborn, Georg Schirrmeister, Lutz Mohammadi, Ali Meyer, Hanno Kartoziia, Andrei Maggioni, Flavio Strauss, Jens 1 Eurasia Institute of Earth Sciences Istanbul Technical University Maslak/Istanbul 34469 Turkey 2 Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam 14473 Germany 3 A.A. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk 630090 Russia Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
topic_facet |
ddc:551 Lena River north‐eastern Siberia palaeoenvironment permafrost Quaternary |
description |
Arctic warming and permafrost thaw visibly expose changes in the landscape of the Lena River delta, the largest Arctic delta. Determining the past and modern river regime of thick deltaic deposits shaping the Lena River mouth in north‐eastern Siberia is critical for understanding the history of delta formation and carbon sequestration. Using a 65 m long sediment core from the delta apex a set of sedimentological techniques is applied to aid in reconstructing the Lena River history. The analysis includes: (i) grain‐size measurements and the determination of the bedload composition; (ii) X‐ray fluorescence, X‐ray diffractometry, and magnetic susceptibility measurements and heavy mineral analysis for tracking mineral change; (iii) pH, electrical conductivity, ionic concentrations, and the δ 18 O and δD stable isotope composition from ground ice for reconstructing permafrost formation. In addition; (iv) total and dissolved organic carbon is assessed. Chronology is based on; (vi) radiocarbon dating of organic material (accelerator mass spectrometry and conventional) and is complemented by two infrared – optically stimulated luminescence dates. The record stretches back approximately to Marine Isotope Stage 7. It holds periods from traction, over saltation, to suspension load sedimentation. Minerogenic signals do not indicate provenance change over time. They rather reflect the change from high energy to a lower energy regime after Last Glacial Maximum time parallel to the fining‐up grain‐size trend. A prominent minimum in the ground ice stable isotope record at early Holocene highlights that a river arm migration and an associated refreeze of the underlying river talik has altered the isotopic composition at that time. Fluvial re‐routing might be explained by internal dynamics in the Lena River lowland or due to a tectonic movement, since the study area is placed in a zone of seismic activity. At the southern Laptev Sea margin, onshore continental compressional patterns are bordering offshore extensional normal ... |
format |
Article in Journal/Newspaper |
author |
Schwamborn, Georg Schirrmeister, Lutz Mohammadi, Ali Meyer, Hanno Kartoziia, Andrei Maggioni, Flavio Strauss, Jens 1 Eurasia Institute of Earth Sciences Istanbul Technical University Maslak/Istanbul 34469 Turkey 2 Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam 14473 Germany 3 A.A. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk 630090 Russia |
author_facet |
Schwamborn, Georg Schirrmeister, Lutz Mohammadi, Ali Meyer, Hanno Kartoziia, Andrei Maggioni, Flavio Strauss, Jens 1 Eurasia Institute of Earth Sciences Istanbul Technical University Maslak/Istanbul 34469 Turkey 2 Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam 14473 Germany 3 A.A. Trofimuk Institute of Petroleum Geology and Geophysics SB RAS Novosibirsk 630090 Russia |
author_sort |
Schwamborn, Georg |
title |
Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
title_short |
Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
title_full |
Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
title_fullStr |
Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
title_full_unstemmed |
Fluvial and permafrost history of the lower Lena River, north‐eastern Siberia, over late Quaternary time |
title_sort |
fluvial and permafrost history of the lower lena river, north‐eastern siberia, over late quaternary time |
publishDate |
2022 |
url |
https://doi.org/10.1111/sed.13037 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11185 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) |
geographic |
Arctic Laptev Sea Talik |
geographic_facet |
Arctic Laptev Sea Talik |
genre |
Arctic Ice laptev Laptev Sea lena river Magnetic susceptibility permafrost Siberia |
genre_facet |
Arctic Ice laptev Laptev Sea lena river Magnetic susceptibility permafrost Siberia |
op_relation |
doi:10.1111/sed.13037 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/11185 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
op_doi |
https://doi.org/10.1111/sed.13037 |
container_title |
Sedimentology |
container_volume |
70 |
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1 |
container_start_page |
235 |
op_container_end_page |
258 |
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1785577530929971200 |