| Title | Origin and erosion of the Police Point landslide, Cypress Hills, Alberta |
| Download | Download (whole publication) |
| Author | Sauchyn, D J; Nelson, H L |
| Source | Holocene climate and environmental change in the Palliser Triangle: a geoscientific context for evaluation the impacts of climate change on the southern Canadian prairies; by Lemmen, D S (ed.); Vance, R E
(ed.); Geological Survey of Canada, Bulletin 534, 1999 p. 257-265, https://doi.org/10.4095/211123 |
| Year | 1999 |
| Publisher | Natural Resources Canada |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| Related | This publication is contained in Lemmen, D S; Vance, R E;
(1999). Holocene climate and environmental change in the Palliser Triangle: a geoscientific context for evaluation the impacts of climate change on the southern Canadian prairies, Geological Survey of Canada, Bulletin no. 534 |
| File format | pdf |
| Province | Alberta |
| NTS | 72E/09 |
| Area | Palliser Triangle; Cypress Hills; Battle Creek |
| Lat/Long WENS | -110.5000 -110.0000 49.7500 49.5000 |
| Subjects | surficial geology/geomorphology; landforms; erosion; landslides; slope failures; Holocene; morphometric studies; Eocene; Miocene; Paleocene; Upper Cretaceous; clays; Police Point landslide;
Quaternary |
| Illustrations | sketch maps; photographs; analyses |
| |
| Program | Palliser Triangle Global Change Project |
| Image |  |
| Released | 2000 01 01 |
| Abstract | The Police Point landslide is the largest historic landslide in the Cypress Hills, and is typical of the complex slope failures that dominate the slope geomorphology of the Cypress Hills and major
valleys of the Palliser Triangle. The failure produced proximal slump blocks and distal earth flows which continue to slowly creep and slide. Continuous sediment production by rill erosion, mass wasting of secondary scarps, and gully erosion of the
earthflow deposits impacts forest, riparian, and aquatic ecosystems. Average net erosion of 6.4 cm at 101 steel rods, measured from October 27, 1994 to July 3, 1996, represents 2290 m3 of sediment loss from about 0.35 km2 of landslide deposits. Up to
45 cm of gully erosion occurred during single storms. Significant variability among pins and observation days reflects the threshold response of surface sediments to hydrological and meteorological conditions, whereby much of the annual sediment
redistribution occurs during a few runoff events. |
| GEOSCAN ID | 211123 |
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