| Abstract: | Large-scale gravitational spreading of steep-sided ridges characterized by linear fissures, trenches, and uphill-facing scarps high on the sides and tops of ridges are known worldwide. Such spreading, termed sackung, is commonly attributed to pervasive plastic deformation of a rock mass, and is here analyzed as such. Beginning with a previously developed exact elastic solution for gravity-induced stresses in a symmetric ridge, stresses calculated from the exact solution are used in the Coulomb failure criterion to determine the extent of ridge failure under self-weight. Finally, when the regions of failure are established, a plastic flow solution is applied to predict the location of and sense of movement on upward-facing scarps near ridge crests and other features common in sackung. ?? 1987 International Assocaition of Engineering Geology. |
| Genre: | Article |
| ProdID: | 70035194 |
| Citation Author: | Savage, W. Z.; Varnes, D. J. |
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| Citation End Page: | 36 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Bulletin of the International Association of Engineering Geology |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Mechanics of gravitational spreading of steep-sided ridges («sackung»); 1987; Article; Journal; Bulletin of the International Association of Engineering Geology; Savage, W. Z.; Varnes, D. J. |
| Citation Start Page: | 31 |
| Citation Volume: | 35 |
| Citation Year: | 1987 |
| Type: | citation/reference |
| Text: | Mechanics of gravitational spreading of steep-sided ridges («sackung»); 1987; Article; Journal; Bulletin of the International Association of Engineering Geology; Savage, W. Z.; Varnes, D. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1007/BF02590474 |
| Date Other: | Thu, 1 Jan 1987 00:00 -0600 |
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