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Quantification of sediment transport by rockfall and rockslide processes on a proglacial rock slope (Kaunertal, Austria).
- Source :
-
Geomorphology . Jun2017, Vol. 287, p46-57. 12p. - Publication Year :
- 2017
-
Abstract
- Rockfalls and rockslides are significant geomorphic processes on high alpine proglacial rock slopes. In this study, we quantitatively evaluate sediment transport on a recently deglaciated rock slope that is directly connected to the shrinking Gepatschferner glacier, by multi-temporal terrestrial and airborne LiDAR observations. According to the LiDAR measurements, sediment transport by gravitational mass movements on this single proglacial rock slope (0.2 km 2 ) yielded 159 GJ/a geomorphic work. The most significant part (141 GJ/a) was released by rockfall while 18 GJ/a were performed by the sliding activity of a 1,250,000 m 3 large unstable rock mass. The results indicate that slope development and talus formation in proglacial environments may be a rapid process despite of being caused by continuous rockfall activity over several millennia. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0169555X
- Volume :
- 287
- Database :
- Academic Search Index
- Journal :
- Geomorphology
- Publication Type :
- Academic Journal
- Accession number :
- 123628771
- Full Text :
- https://doi.org/10.1016/j.geomorph.2016.10.032