Ice distribution in permafrost profiles
Soil samples from deep drill holes in permafrost have been analyzed with particular regard to lithology and ice occurrence. The occurrence of moisture accumulation and ice lensing was found to be compatible with predictions from air intrusion tests on the soil materials. Regard is paid to the specia...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
1968
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| Online Access: | https://nrc-publications.canada.ca/eng/view/ft/?id=3653df22-67f7-4791-ae0e-781892ca2078 https://nrc-publications.canada.ca/eng/view/object/?id=3653df22-67f7-4791-ae0e-781892ca2078 https://nrc-publications.canada.ca/fra/voir/objet/?id=3653df22-67f7-4791-ae0e-781892ca2078 |
| Summary: | Soil samples from deep drill holes in permafrost have been analyzed with particular regard to lithology and ice occurrence. The occurrence of moisture accumulation and ice lensing was found to be compatible with predictions from air intrusion tests on the soil materials. Regard is paid to the special geomorphological conditions at the drill sites, and to recent findings in laboratory research on soil freezing. L'auteur a examiné des carottes provenant de forages profonds effectués dans le pergélisol spécialement pour dé terminer leur lithologie et la présence de lentilles de glace. Il a constaté que l'augmentation localisée de la teneur en eau et la formation de lentilles de glace correspondaient aux prévisions découlant d'essais de péné tration de l'air dans les sols. L'auteur tient compte des conditions géomorphologiques particulières au lieu précis du forage et des résultats de recherches récentes menées en laboratoire sur la congelation du sol. Peer reviewed: No NRC publication: Yes |
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