Le Château Cugny, un escarpement particulièrement gélif du Jura
Château Cugny is an exceptional place where the actual cliffs evolution is quite rapid. Because of the frost action, considerable quantities of frost-rived nibble broke off the cliffs each year. The relative frequency of rock falls enables measurements to be made with simple installations....
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| Format: | Article |
| Language: | deu |
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Copernicus Publications
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| Series: | Geographica Helvetica |
| Online Access: | http://www.geogr-helv.net/40/67/1985/gh-40-67-1985.pdf |
| Summary: | Château Cugny is an exceptional place where the
actual cliffs evolution is quite rapid. Because of the
frost action, considerable quantities of frost-rived
nibble broke off the cliffs each year. The relative
frequency of rock falls enables measurements to be
made with simple installations. Two examples of the
daily freeze-thaw cycle show the variations of the rock
falls during the day according to the temperature's
changes. Frequent rock falls contribute to Château
Cugny's cliffs rapid scarp retreat.<br>
These rock falls occur by a 2-stage process: first, the
frost susceptible lower portion of the cliff breaks apart
resulting in undermining of the overlying non frostsusceptible
portion which subsequently breaks off and
falls down. |
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| ISSN: | 0016-7312 2194-8798 |