| Abstract: | The average rate of downshope movement of rock fragments on shale hillslopes is directly proportional to the sine of the slope angle or that component of the gravitational force which acts parallel to the hillslope. The rates of surficial rock creep range from a few millimeters per year on a 3degree slope to almost 70 millimeters per year on a 40-degree slope, but these rates vary with natural variations in soil characteristics and microclimate, as well as with accidental disturbances. |
| Genre: | Article |
| ProdID: | 70011477 |
| Citation Author: | Schumm, S. A. |
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| Citation End Page: | 561 |
| Citation Issue: | 3762 |
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| Citation Language: | English |
| Citation Larger Work Title: | Science |
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| Citation Number Of Pages: | 2 |
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| Citation Search Results Text: | Rates of surficial rock creep on hillslopes in Western Colorado; 1967; Article; Journal; Science; Schumm, S. A. |
| Citation Start Page: | 560 |
| Citation Volume: | 155 |
| Citation Year: | 1967 |
| Type: | citation/reference |
| Text: | Rates of surficial rock creep on hillslopes in Western Colorado; 1967; Article; Journal; Science; Schumm, S. A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1967 00:00 -0600 |
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