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How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)

Danielle McLean, Paul Albert Orcid Logo, Gordon Schlolaut, Henry F. Lamb Orcid Logo, Michael H. Marshall, Achim Brauer Orcid Logo, Jon Wade, Takeshi Nakagawa Orcid Logo, Victoria C. Smith Orcid Logo

Journal of Quaternary Science, Volume: 37, Issue: 7, Pages: 1189 - 1206

Swansea University Authors: Danielle McLean, Paul Albert Orcid Logo

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DOI (Published version): 10.1002/jqs.3432

Abstract

Here, we evaluate the ability of micro X-ray fluorescence (µXRF) core scanning to identify non-visible volcanic ash (cryptotephra) layers in sedimentary records. Its suitability is assessed using the annually resolved lacustrine sediments of Lake Suigetsu (Japan) for which there is high-resolution I...

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Published in: Journal of Quaternary Science
ISSN: 0267-8179 1099-1417
Published: Wiley 2022
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URI: https://cronfa.swan.ac.uk/Record/cronfa66239
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A case study using the Lake Suigetsu archive (central Japan)</title><swanseaauthors><author><sid>91d9fbf175c1335f16e8c2611c299c67</sid><firstname>Danielle</firstname><surname>McLean</surname><name>Danielle McLean</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>7f8db9327402511d4d92849cb79af644</sid><ORCID>0000-0002-6757-1452</ORCID><firstname>Paul</firstname><surname>Albert</surname><name>Paul Albert</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2024-05-02</date><deptcode>BGPS</deptcode><abstract>Here, we evaluate the ability of micro X-ray fluorescence (&#xB5;XRF) core scanning to identify non-visible volcanic ash (cryptotephra) layers in sedimentary records. Its suitability is assessed using the annually resolved lacustrine sediments of Lake Suigetsu (Japan) for which there is high-resolution ITRAX &#xB5;XRF core scanning data, and a detailed crypto-tephrostratigraphy (formerly established via density separation techniques). The studied core sections contain 10 visible and 30 cryptotephra markers that span a range of glass concentrations (from 1000 to &gt;20 000 shards per gram of dried sediment) and compositions (basalts, trachy-andesites, phonolites, trachytes and rhyolites), thus providing an ideal case study. The ITRAX core scanner produced recognisable &#xB5;XRF elemental responses for the visible ash layers, including those just 1&#x2009;mm thick. However, just 10% of the cryptotephra layers could be unequivocally identified. Although this study demonstrates that &#xB5;XRF core scanning should not be used as an independent method within a similar geological setting, we show it can provide a powerful tool alongside traditional techniques. Where detected, &#xB5;XRF profiles can verify and refine cryptotephra positions (here to a sub-millimetre resolution), and help establish reworking signatures. 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spelling 2024-06-19T16:44:48.4976724 v2 66239 2024-05-02 How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan) 91d9fbf175c1335f16e8c2611c299c67 Danielle McLean Danielle McLean true false 7f8db9327402511d4d92849cb79af644 0000-0002-6757-1452 Paul Albert Paul Albert true false 2024-05-02 BGPS Here, we evaluate the ability of micro X-ray fluorescence (µXRF) core scanning to identify non-visible volcanic ash (cryptotephra) layers in sedimentary records. Its suitability is assessed using the annually resolved lacustrine sediments of Lake Suigetsu (Japan) for which there is high-resolution ITRAX µXRF core scanning data, and a detailed crypto-tephrostratigraphy (formerly established via density separation techniques). The studied core sections contain 10 visible and 30 cryptotephra markers that span a range of glass concentrations (from 1000 to >20 000 shards per gram of dried sediment) and compositions (basalts, trachy-andesites, phonolites, trachytes and rhyolites), thus providing an ideal case study. The ITRAX core scanner produced recognisable µXRF elemental responses for the visible ash layers, including those just 1 mm thick. However, just 10% of the cryptotephra layers could be unequivocally identified. Although this study demonstrates that µXRF core scanning should not be used as an independent method within a similar geological setting, we show it can provide a powerful tool alongside traditional techniques. Where detected, µXRF profiles can verify and refine cryptotephra positions (here to a sub-millimetre resolution), and help establish reworking signatures. These insights create possibilities for ultra-precise synchronisation of records, improved chronological modelling and help generate more complete eruption histories. Journal Article Journal of Quaternary Science 37 7 1189 1206 Wiley 0267-8179 1099-1417 Tephra Detection; ITRAX; Lake Suigetsu; Lake sediment; µXRF core scanning 1 10 2022 2022-10-01 10.1002/jqs.3432 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee UK Research and Innovation. Grant Number: MR/S035478/1 Natural Environment Research Council. Grant Number: NE/D000289/1 Japan Society for the Promotion of Science (JSPS). Grant Number: KAKENHI-15H021443 2024-06-19T16:44:48.4976724 2024-05-02T13:56:14.0100959 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Danielle McLean 1 Paul Albert 0000-0002-6757-1452 2 Gordon Schlolaut 3 Henry F. Lamb 0000-0003-0025-0766 4 Michael H. Marshall 5 Achim Brauer 0000-0002-6655-9451 6 Jon Wade 7 Takeshi Nakagawa 0000-0003-0831-6803 8 Victoria C. Smith 0000-0003-0878-5060 9 66239__30233__221401e5a26c4d2ebd1ff5ff66ab2b2a.pdf 66239.pdf 2024-05-02T13:58:29.9736896 Output 6812829 application/pdf Version of Record true © 2022 The Authors. This is an open access article under the terms of the Creative Commons Attribution License. true eng http://creativecommons.org/licenses/by/4.0/
title How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
spellingShingle How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
Danielle McLean
Paul Albert
title_short How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
title_full How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
title_fullStr How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
title_full_unstemmed How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
title_sort How reliable is µXRF core scanning at detecting tephra layers in sedimentary records? A case study using the Lake Suigetsu archive (central Japan)
author_id_str_mv 91d9fbf175c1335f16e8c2611c299c67
7f8db9327402511d4d92849cb79af644
author_id_fullname_str_mv 91d9fbf175c1335f16e8c2611c299c67_***_Danielle McLean
7f8db9327402511d4d92849cb79af644_***_Paul Albert
author Danielle McLean
Paul Albert
author2 Danielle McLean
Paul Albert
Gordon Schlolaut
Henry F. Lamb
Michael H. Marshall
Achim Brauer
Jon Wade
Takeshi Nakagawa
Victoria C. Smith
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container_title Journal of Quaternary Science
container_volume 37
container_issue 7
container_start_page 1189
publishDate 2022
institution Swansea University
issn 0267-8179
1099-1417
doi_str_mv 10.1002/jqs.3432
publisher Wiley
college_str Faculty of Science and Engineering
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hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography
document_store_str 1
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description Here, we evaluate the ability of micro X-ray fluorescence (µXRF) core scanning to identify non-visible volcanic ash (cryptotephra) layers in sedimentary records. Its suitability is assessed using the annually resolved lacustrine sediments of Lake Suigetsu (Japan) for which there is high-resolution ITRAX µXRF core scanning data, and a detailed crypto-tephrostratigraphy (formerly established via density separation techniques). The studied core sections contain 10 visible and 30 cryptotephra markers that span a range of glass concentrations (from 1000 to >20 000 shards per gram of dried sediment) and compositions (basalts, trachy-andesites, phonolites, trachytes and rhyolites), thus providing an ideal case study. The ITRAX core scanner produced recognisable µXRF elemental responses for the visible ash layers, including those just 1 mm thick. However, just 10% of the cryptotephra layers could be unequivocally identified. Although this study demonstrates that µXRF core scanning should not be used as an independent method within a similar geological setting, we show it can provide a powerful tool alongside traditional techniques. Where detected, µXRF profiles can verify and refine cryptotephra positions (here to a sub-millimetre resolution), and help establish reworking signatures. These insights create possibilities for ultra-precise synchronisation of records, improved chronological modelling and help generate more complete eruption histories.
published_date 2022-10-01T05:20:09Z
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