Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic.
Finely laminated sediment cores from two Arctic lakes were investigated using the Itrax™ Core Scanner that provides micro X-ray fluorescence (μ-XRF) measurements with a spatial resolution of 100 μm. We compared these chemical measurements with standard geochemical methods using, at the macroscopic s...
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ftinrsquebec:oai:espace.inrs.ca:10725 2023-05-15T14:26:26+02:00 Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. Cuven, Stéphanie Francus, Pierre Lamoureux, Scott F. 2010 https://espace.inrs.ca/id/eprint/10725/ https://doi.org/10.1007/s10933-010-9453-1 unknown Cuven, Stéphanie, Francus, Pierre et Lamoureux, Scott F. (2010). Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. Journal of Paleolimnology , vol. 44 , nº 3. p. 803-817. DOI:10.1007/s10933-010-9453-1 <https://doi.org/10.1007/s10933-010-9453-1>. doi:10.1007/s10933-010-9453-1 micro X-ray fluorescence (μ-XRF) particle size analysis image analysis clastic varves Arctic lakes microfacies characterisation Article Évalué par les pairs 2010 ftinrsquebec https://doi.org/10.1007/s10933-010-9453-1 2023-02-10T11:46:18Z Finely laminated sediment cores from two Arctic lakes were investigated using the Itrax™ Core Scanner that provides micro X-ray fluorescence (μ-XRF) measurements with a spatial resolution of 100 μm. We compared these chemical measurements with standard geochemical methods using, at the macroscopic scale, inductively coupled plasma–atomic emission spectrometry (ICP-AES) and, at the microscopic scale, energy dispersive spectroscopy (EDS). We also investigated the relationship between the chemical profiles and the grain size of sediments at macro-scale using laser particle-size analysis, and at microscopic scale, using thin section image analysis techniques. Results show a link between grain size and the relative abundance of several elements. Silicon and zirconium are associated with very coarse silt and sand deposits, K and Fe with clay-rich layers, and Ti with silty facies. Four sedimentary facies are characterised based on sedimentary structure and texture, and interpreted in terms of known seasonal hydroclimatic processes. We show that is possible to identify these sedimentary facies using μ-XRF element abundance or ratio variations. The K/Ti ratio is the best marker of the upper varve boundary, and it might be used for varve identification and counting of Cape Bounty sediments in future. More generally, this study demonstrates new applications for paleohydrological reconstructions from laminated sediments. Article in Journal/Newspaper Arctic Arctic Institut national de la recherche scientifique, Québec: Espace INRS Arctic Cape Bounty ENVELOPE(-109.542,-109.542,74.863,74.863) Journal of Paleolimnology 44 3 803 817 |
institution |
Open Polar |
collection |
Institut national de la recherche scientifique, Québec: Espace INRS |
op_collection_id |
ftinrsquebec |
language |
unknown |
topic |
micro X-ray fluorescence (μ-XRF) particle size analysis image analysis clastic varves Arctic lakes microfacies characterisation |
spellingShingle |
micro X-ray fluorescence (μ-XRF) particle size analysis image analysis clastic varves Arctic lakes microfacies characterisation Cuven, Stéphanie Francus, Pierre Lamoureux, Scott F. Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
topic_facet |
micro X-ray fluorescence (μ-XRF) particle size analysis image analysis clastic varves Arctic lakes microfacies characterisation |
description |
Finely laminated sediment cores from two Arctic lakes were investigated using the Itrax™ Core Scanner that provides micro X-ray fluorescence (μ-XRF) measurements with a spatial resolution of 100 μm. We compared these chemical measurements with standard geochemical methods using, at the macroscopic scale, inductively coupled plasma–atomic emission spectrometry (ICP-AES) and, at the microscopic scale, energy dispersive spectroscopy (EDS). We also investigated the relationship between the chemical profiles and the grain size of sediments at macro-scale using laser particle-size analysis, and at microscopic scale, using thin section image analysis techniques. Results show a link between grain size and the relative abundance of several elements. Silicon and zirconium are associated with very coarse silt and sand deposits, K and Fe with clay-rich layers, and Ti with silty facies. Four sedimentary facies are characterised based on sedimentary structure and texture, and interpreted in terms of known seasonal hydroclimatic processes. We show that is possible to identify these sedimentary facies using μ-XRF element abundance or ratio variations. The K/Ti ratio is the best marker of the upper varve boundary, and it might be used for varve identification and counting of Cape Bounty sediments in future. More generally, this study demonstrates new applications for paleohydrological reconstructions from laminated sediments. |
format |
Article in Journal/Newspaper |
author |
Cuven, Stéphanie Francus, Pierre Lamoureux, Scott F. |
author_facet |
Cuven, Stéphanie Francus, Pierre Lamoureux, Scott F. |
author_sort |
Cuven, Stéphanie |
title |
Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
title_short |
Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
title_full |
Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
title_fullStr |
Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
title_full_unstemmed |
Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. |
title_sort |
estimation of grain size variability with micro x-ray fluorescence in laminated lacustrine sediments, cape bounty, canadian high arctic. |
publishDate |
2010 |
url |
https://espace.inrs.ca/id/eprint/10725/ https://doi.org/10.1007/s10933-010-9453-1 |
long_lat |
ENVELOPE(-109.542,-109.542,74.863,74.863) |
geographic |
Arctic Cape Bounty |
geographic_facet |
Arctic Cape Bounty |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_relation |
Cuven, Stéphanie, Francus, Pierre et Lamoureux, Scott F. (2010). Estimation of grain size variability with micro X-ray fluorescence in laminated lacustrine sediments, Cape Bounty, Canadian High Arctic. Journal of Paleolimnology , vol. 44 , nº 3. p. 803-817. DOI:10.1007/s10933-010-9453-1 <https://doi.org/10.1007/s10933-010-9453-1>. doi:10.1007/s10933-010-9453-1 |
op_doi |
https://doi.org/10.1007/s10933-010-9453-1 |
container_title |
Journal of Paleolimnology |
container_volume |
44 |
container_issue |
3 |
container_start_page |
803 |
op_container_end_page |
817 |
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1766299003688845312 |