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 tomography (CT) to obtain high-resolution data (Δ x =50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in northeastern...
| Main Authors: | , , , , , |
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| Format: | Text |
| Language: | English |
| Published: |
2022
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| Online Access: | https://doi.org/10.5194/tc-2022-79 https://tc.copernicus.org/preprints/tc-2022-79/ |
| _version_ | 1821538502341296128 |
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| author | Nitzbon, Jan Gadylyaev, Damir Schlüter, Steffen Köhne, John Maximilian Grosse, Guido Boike, Julia |
| author_facet | Nitzbon, Jan Gadylyaev, Damir Schlüter, Steffen Köhne, John Maximilian Grosse, Guido Boike, Julia |
| author_sort | Nitzbon, Jan |
| collection | Copernicus Publications: E-Journals |
| description | The microstructure of permafrost ground contains clues to its formation and hence its preconditioning to future change. We applied X-ray computed tomography (CT) to obtain high-resolution data (Δ x =50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in northeastern Siberia. The CT analysis allowed to directly map and quantify excess ice, gas inclusions, and two distinct sediment phases. Using laboratory measurements of coarsely-resolved core samples, we statistically estimated the composition of the sediment phases and indirectly quantified pore ice, organic, and mineral contents. We conclude that CT is a promising method for obtaining physical properties of permafrost cores which opens novel research potentials. |
| format | Text |
| genre | Ice permafrost Siberia |
| genre_facet | Ice permafrost Siberia |
| id | ftcopernicus:oai:publications.copernicus.org:tcd102335 |
| institution | Open Polar |
| language | English |
| op_collection_id | ftcopernicus |
| op_doi | https://doi.org/10.5194/tc-2022-79 |
| op_relation | doi:10.5194/tc-2022-79 https://tc.copernicus.org/preprints/tc-2022-79/ |
| op_source | eISSN: 1994-0424 |
| publishDate | 2022 |
| record_format | openpolar |
| spelling | ftcopernicus:oai:publications.copernicus.org:tcd102335 2025-01-16T22:21:14+00:00 Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography Nitzbon, Jan Gadylyaev, Damir Schlüter, Steffen Köhne, John Maximilian Grosse, Guido Boike, Julia 2022-04-19 application/pdf https://doi.org/10.5194/tc-2022-79 https://tc.copernicus.org/preprints/tc-2022-79/ eng eng doi:10.5194/tc-2022-79 https://tc.copernicus.org/preprints/tc-2022-79/ eISSN: 1994-0424 Text 2022 ftcopernicus https://doi.org/10.5194/tc-2022-79 2022-04-25T16:22:31Z The microstructure of permafrost ground contains clues to its formation and hence its preconditioning to future change. We applied X-ray computed tomography (CT) to obtain high-resolution data (Δ x =50 µm) of the composition of a 164 cm long permafrost core drilled in a Yedoma upland in northeastern Siberia. The CT analysis allowed to directly map and quantify excess ice, gas inclusions, and two distinct sediment phases. Using laboratory measurements of coarsely-resolved core samples, we statistically estimated the composition of the sediment phases and indirectly quantified pore ice, organic, and mineral contents. We conclude that CT is a promising method for obtaining physical properties of permafrost cores which opens novel research potentials. Text Ice permafrost Siberia Copernicus Publications: E-Journals |
| spellingShingle | Nitzbon, Jan Gadylyaev, Damir Schlüter, Steffen Köhne, John Maximilian Grosse, Guido Boike, Julia Brief communication: Unravelling the composition and microstructure of a permafrost core using X-ray computed tomography |
| title | 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_short | 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 |
| url | https://doi.org/10.5194/tc-2022-79 https://tc.copernicus.org/preprints/tc-2022-79/ |