| Title | A test plot study of a permafrost slope in Mackenzie Valley, NWT |
| |
| Author | Wang, B; Paudel, B; Li, H |
| Source | Proceedings of GeoManitoba 2012, 65th Canadian Geotechnical Conference; 2012 p. 1-7 |
| Image |  |
| Year | 2012 |
| Alt Series | Earth Sciences Sector, Contribution Series 20120069 |
| Meeting | GeoManitoba 2012, 65th Canadian Geotechnical Conference; Winnipeg; CA; September 30 - October 3, 2012 |
| Document | book |
| Lang. | English |
| Media | paper |
| File format | pdf |
| Province | Northwest Territories |
| NTS | 106O/06 |
| Area | Mackenzie Valley; Mackenzie River |
| Lat/Long WENS | -132.0000 -131.0000 68.0000 67.2500 |
| Subjects | surficial geology/geomorphology; Nature and Environment; permafrost; freezing ground; ground ice; ground temperatures; slope failures; slope stability; slope stability analyses; Cenozoic;
Quaternary |
| Illustrations | location maps; photographs; plots |
| Program | Climate Change Geoscience |
| Released | 2012 01 01 |
| Abstract | Two test plots were developed near a retrogressive thaw slide in the Mackenzie valley, about 120 km southeast of Inuvik, Northwest Territories. The area was burnt 1998 that destroyed all trees and
vegetation. The test plots were developed by excavating a surface area of 6 m x 20 m each on a gentle slope of about 10º. Surface materials were removed with hand shovels to a depth of 0.5 m and 0.6 m respectively. Inclinometers were installed in the
test plots. Ground surface subsidence and thaw depth were measured. In one year, the maximum thaw depth increased by 60 cm to 78 cm. The ground surface subsided by 10 cm to 30 cm. The slope deformed about 12 mm to 30 mm. Slip surface was detected
near the original permafrost table. |
| GEOSCAN ID | 291443 |
|
|