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Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash / Siwan, Davies; Richard, Johnston

Journal of Physics: Conference Series, Volume: 849, Start page: 012012

Swansesa University Authors: Siwan, Davies, Richard, Johnston

Abstract

We present a series of soft sediment geological phantoms constructed to simulate volcanic ash deposits preserved within sediment cores. This study aimed to systematically discern which sediment components are most effectively detected and therefore characterised by X-ray microCT (μCT). Samples with...

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Published in: Journal of Physics: Conference Series
ISSN: 1742-6588 1742-6596
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34495
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last_indexed 2018-02-09T05:24:41Z
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spelling 2017-09-04T16:41:53.8153805 v2 34495 2017-06-27 Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash b628382c97124173dd283bf7b83f1eec 0000-0003-0999-7233 Siwan Davies Siwan Davies true false 23282e7acce87dd926b8a62ae410a393 0000-0003-1977-6418 Richard Johnston Richard Johnston true false 2017-06-27 SGE We present a series of soft sediment geological phantoms constructed to simulate volcanic ash deposits preserved within sediment cores. This study aimed to systematically discern which sediment components are most effectively detected and therefore characterised by X-ray microCT (μCT). Samples with low or overlapping attenuation contrast but distinct morphologies such as coarse grained (&gt;125 μm) ash within fine mud (&lt;4 μm) can be manually separated using analysis software, while samples with high attenuation contrast display distinct horizons that are easily segmented using attenuation thresholds. We anticipate that this work will have broader applications within Earth Science to optimise the exploration of sediment with μCT analysis. Journal Article Journal of Physics: Conference Series 849 012012 1742-6588 1742-6596 1 1 2017 2017-01-01 10.1088/1742-6596/849/1/012012 COLLEGE NANME Geography COLLEGE CODE SGE Swansea University 2017-09-04T16:41:53.8153805 2017-06-27T11:10:54.1933123 College of Engineering Engineering E E Evans 1 S M Davies 2 R E Johnston 3 Siwan Davies 0000-0003-0999-7233 4 Richard Johnston 0000-0003-1977-6418 5 0034495-27062017111158.pdf evans2017(4).pdf 2017-06-27T11:11:58.1700000 Output 6609538 application/pdf Version of Record true 2017-06-27T00:00:00.0000000 true eng
title Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
spellingShingle Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
Siwan, Davies
Richard, Johnston
title_short Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
title_full Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
title_fullStr Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
title_full_unstemmed Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
title_sort Phantom creation and analysis: Improving X-Ray microtomography scanning of soft sediment cores containing volcanic ash
author_id_str_mv b628382c97124173dd283bf7b83f1eec
23282e7acce87dd926b8a62ae410a393
author_id_fullname_str_mv b628382c97124173dd283bf7b83f1eec_***_Siwan, Davies
23282e7acce87dd926b8a62ae410a393_***_Richard, Johnston
author Siwan, Davies
Richard, Johnston
format Journal article
container_title Journal of Physics: Conference Series
container_volume 849
container_start_page 012012
publishDate 2017
institution Swansea University
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1742-6596
doi_str_mv 10.1088/1742-6596/849/1/012012
college_str College of Engineering
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hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
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description We present a series of soft sediment geological phantoms constructed to simulate volcanic ash deposits preserved within sediment cores. This study aimed to systematically discern which sediment components are most effectively detected and therefore characterised by X-ray microCT (μCT). Samples with low or overlapping attenuation contrast but distinct morphologies such as coarse grained (&gt;125 μm) ash within fine mud (&lt;4 μm) can be manually separated using analysis software, while samples with high attenuation contrast display distinct horizons that are easily segmented using attenuation thresholds. We anticipate that this work will have broader applications within Earth Science to optimise the exploration of sediment with μCT analysis.
published_date 2017-01-01T19:17:04Z
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