Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography
The microstructure of permafrost ground contains clues to its formation and hence its preconditioning to future change. We applied X-ray computed microtomography (CT) to obtain high-resolution data (Δx=50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in north-eas...
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Copernicus Publications
2022
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fttriple:oai:gotriple.eu:oai:doaj.org/article:061d0b19775d45bcb3eac342eb55f090 2023-05-15T16:36:47+02:00 Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography J. Nitzbon D. Gadylyaev S. Schlüter J. M. Köhne G. Grosse J. Boike 2022-09-01 https://doi.org/10.5194/tc-16-3507-2022 https://tc.copernicus.org/articles/16/3507/2022/tc-16-3507-2022.pdf https://doaj.org/article/061d0b19775d45bcb3eac342eb55f090 en eng Copernicus Publications doi:10.5194/tc-16-3507-2022 1994-0416 1994-0424 https://tc.copernicus.org/articles/16/3507/2022/tc-16-3507-2022.pdf https://doaj.org/article/061d0b19775d45bcb3eac342eb55f090 undefined The Cryosphere, Vol 16, Pp 3507-3515 (2022) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.5194/tc-16-3507-2022 2023-01-22T19:12:00Z The microstructure of permafrost ground contains clues to its formation and hence its preconditioning to future change. We applied X-ray computed microtomography (CT) to obtain high-resolution data (Δx=50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in north-eastern Siberia. The CT analysis allowed the microstructures to be directly mapped and volumetric contents of excess ice, gas inclusions, and two distinct sediment types to be quantified. Using laboratory measurements of coarsely resolved core samples, we statistically estimated the composition of the sediment types and used it to indirectly quantify volumetric contents of pore ice, organic matter, and mineral material along the core. We conclude that CT is a promising method for obtaining physical properties of permafrost cores which opens novel research potentials. Article in Journal/Newspaper Ice permafrost The Cryosphere Siberia Unknown The Cryosphere 16 9 3507 3515 |
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language |
English |
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geo envir |
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geo envir J. Nitzbon D. Gadylyaev S. Schlüter J. M. Köhne G. Grosse J. Boike Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
topic_facet |
geo envir |
description |
The microstructure of permafrost ground contains clues to its formation and hence its preconditioning to future change. We applied X-ray computed microtomography (CT) to obtain high-resolution data (Δx=50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in north-eastern Siberia. The CT analysis allowed the microstructures to be directly mapped and volumetric contents of excess ice, gas inclusions, and two distinct sediment types to be quantified. Using laboratory measurements of coarsely resolved core samples, we statistically estimated the composition of the sediment types and used it to indirectly quantify volumetric contents of pore ice, organic matter, and mineral material along the core. We conclude that CT is a promising method for obtaining physical properties of permafrost cores which opens novel research potentials. |
format |
Article in Journal/Newspaper |
author |
J. Nitzbon D. Gadylyaev S. Schlüter J. M. Köhne G. Grosse J. Boike |
author_facet |
J. Nitzbon D. Gadylyaev S. Schlüter J. M. Köhne G. Grosse J. Boike |
author_sort |
J. Nitzbon |
title |
Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
title_short |
Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
title_full |
Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
title_fullStr |
Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
title_full_unstemmed |
Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
title_sort |
brief communication: unravelling the composition and microstructure of a permafrost core using x-ray computed tomography |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-3507-2022 https://tc.copernicus.org/articles/16/3507/2022/tc-16-3507-2022.pdf https://doaj.org/article/061d0b19775d45bcb3eac342eb55f090 |
genre |
Ice permafrost The Cryosphere Siberia |
genre_facet |
Ice permafrost The Cryosphere Siberia |
op_source |
The Cryosphere, Vol 16, Pp 3507-3515 (2022) |
op_relation |
doi:10.5194/tc-16-3507-2022 1994-0416 1994-0424 https://tc.copernicus.org/articles/16/3507/2022/tc-16-3507-2022.pdf https://doaj.org/article/061d0b19775d45bcb3eac342eb55f090 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-16-3507-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
9 |
container_start_page |
3507 |
op_container_end_page |
3515 |
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1766027114166878208 |