Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples
Abstract. Lake El'gygytgyn/NE Russia holds a continuous 3.58 Ma sediment record, which is regarded as the most longlasting climate archive of the terrestrial Arctic. Based on multi-proxy geochemical, mineralogical, and granulometric analyses of surface sediment, inlet stream and bedrock samples...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1035.9385 2023-05-15T15:08:15+02:00 Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples V Wennrich A Francke A Dehnert O Juschus T Leipe C Vogt J Brigham-Grette P S Minyuk M Melles El ' Gygytgyn Science Party The Pennsylvania State University CiteSeerX Archives 2013 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1035.9385 http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1035.9385 http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf text 2013 ftciteseerx 2020-02-16T01:15:51Z Abstract. Lake El'gygytgyn/NE Russia holds a continuous 3.58 Ma sediment record, which is regarded as the most longlasting climate archive of the terrestrial Arctic. Based on multi-proxy geochemical, mineralogical, and granulometric analyses of surface sediment, inlet stream and bedrock samples, supplemented by statistical methods, major processes influencing the modern sedimentation in the lake were investigated. Grain-size parameters and chemical elements linked to the input of feldspars from acidic bedrock indicate a windinduced two-cell current system as major driver of sediment transport and accumulation processes in Lake El'gygytgyn. The distribution of mafic rock related elements in the sediment on the lake floor can be traced back to the input of weathering products of basaltic rocks in the catchment. Obvious similarities in the spatial variability of manganese and heavy metals indicate sorption or co-precipitation of these elements with Fe and Mn hydroxides and oxides. But the similar distribution of organic matter and clay contents might also point to a fixation to organic components and clay minerals. An enrichment of mercury in the inlet streams might be indicative of neotectonic activity around the lake. The results of this study add to the fundamental knowledge of the modern lake processes of Lake El'gygytgyn and its lakecatchment interactions, and thus, yield crucial insights for the interpretation of paleo-data from this unique archive. Text Arctic Unknown Arctic |
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English |
description |
Abstract. Lake El'gygytgyn/NE Russia holds a continuous 3.58 Ma sediment record, which is regarded as the most longlasting climate archive of the terrestrial Arctic. Based on multi-proxy geochemical, mineralogical, and granulometric analyses of surface sediment, inlet stream and bedrock samples, supplemented by statistical methods, major processes influencing the modern sedimentation in the lake were investigated. Grain-size parameters and chemical elements linked to the input of feldspars from acidic bedrock indicate a windinduced two-cell current system as major driver of sediment transport and accumulation processes in Lake El'gygytgyn. The distribution of mafic rock related elements in the sediment on the lake floor can be traced back to the input of weathering products of basaltic rocks in the catchment. Obvious similarities in the spatial variability of manganese and heavy metals indicate sorption or co-precipitation of these elements with Fe and Mn hydroxides and oxides. But the similar distribution of organic matter and clay contents might also point to a fixation to organic components and clay minerals. An enrichment of mercury in the inlet streams might be indicative of neotectonic activity around the lake. The results of this study add to the fundamental knowledge of the modern lake processes of Lake El'gygytgyn and its lakecatchment interactions, and thus, yield crucial insights for the interpretation of paleo-data from this unique archive. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
V Wennrich A Francke A Dehnert O Juschus T Leipe C Vogt J Brigham-Grette P S Minyuk M Melles El ' Gygytgyn Science Party |
spellingShingle |
V Wennrich A Francke A Dehnert O Juschus T Leipe C Vogt J Brigham-Grette P S Minyuk M Melles El ' Gygytgyn Science Party Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
author_facet |
V Wennrich A Francke A Dehnert O Juschus T Leipe C Vogt J Brigham-Grette P S Minyuk M Melles El ' Gygytgyn Science Party |
author_sort |
V Wennrich |
title |
Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
title_short |
Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
title_full |
Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
title_fullStr |
Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
title_full_unstemmed |
Modern sedimentation patterns in Lake El'gygytgyn, NE Russia, derived from surface sediment and inlet streams samples |
title_sort |
modern sedimentation patterns in lake el'gygytgyn, ne russia, derived from surface sediment and inlet streams samples |
publishDate |
2013 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1035.9385 http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1035.9385 http://www.clim-past.net/9/135/2013/cp-9-135-2013.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766339651161817088 |