| ID |
1988 |
| Citation |
Froese, C.R. and D.M. Cruden (2001) Landslides in weakly cemented glaciolacustrine sediments, Morkill River valley, British Columbia, Canadian Geotechnical Journal, 38(4): 889-900, https://doi.org/10.1139/t01-001. |
| Organization |
University of Alberta |
| URL |
http://www.nrcresearchpress.com/doi/abs/10.1139/t01-001#.WURYr-v1DIV |
| Abstract/Description or Keywords |
Slopes in weakly cemented glaciolacustrine sediments in the Morkill River valley in the Canadian Rocky Mountains stand at up to 70°. Based on field and laboratory observations it appears that a contributing factor to instability is the softening of the soils by frost action and the leaching of calcite cement. Field density profiles demonstrated increased density and carbonate content with an increase in depth. Laboratory tests of carbonate content indicated a positive correlation between calcium carbonate and density in the glaciolacustrine sediments. The relationship was strongest in sands, in which leaching and dissolution were important components of softening. In clays, frost action was the dominant component of softening. Freeze-thaw tests showed a 50% decrease in strength after one cycle of freeze and thaw in the silts and clays.Key words: landslide, cemented, glaciolacustrine sediments, British Columbia. |
| Information Type |
Article |
| Regional Watershed |
Fraser River |
| Sub-watershed if known |
Morkill River |
| Aquifer # |
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| Comments |
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| Project status |
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| Contact Name |
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| Contact Email |
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