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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ftufz:oai:ufz.de:26598 2023-12-10T09:49:28+01:00 Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography Nitzbon, J. Gadylyaev, D. Schlüter, Steffen Köhne, John Maximilian Grosse, G. Boike, J. 2022-09-02 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26598 https://doi.org/10.5194/tc-16-3507-2022 en eng Copernicus Publications Cryosphere 16 (9);; 3507 - 3515 https://doi.org/10.5281/zenodo.6397474 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26598 https://dx.doi.org/10.5194/tc-16-3507-2022 info:eu-repo/semantics/openAccess ISSN: 1994-0416 info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2022 ftufz https://doi.org/10.5194/tc-16-3507-202210.5281/zenodo.6397474 2023-11-12T23:37:29Z 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 Siberia UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
institution |
Open Polar |
collection |
UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
op_collection_id |
ftufz |
language |
English |
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 |
Nitzbon, J. Gadylyaev, D. Schlüter, Steffen Köhne, John Maximilian Grosse, G. Boike, J. |
spellingShingle |
Nitzbon, J. Gadylyaev, D. Schlüter, Steffen Köhne, John Maximilian Grosse, G. Boike, J. Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
author_facet |
Nitzbon, J. Gadylyaev, D. Schlüter, Steffen Köhne, John Maximilian Grosse, G. Boike, J. |
author_sort |
Nitzbon, J. |
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://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26598 https://doi.org/10.5194/tc-16-3507-2022 |
genre |
Ice permafrost Siberia |
genre_facet |
Ice permafrost Siberia |
op_source |
ISSN: 1994-0416 |
op_relation |
https://doi.org/10.5281/zenodo.6397474 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=26598 https://dx.doi.org/10.5194/tc-16-3507-2022 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/tc-16-3507-202210.5281/zenodo.6397474 |
_version_ |
1784893912809209856 |