Articles | Volume 9, issue 4
https://doi.org/10.5194/esurf-9-995-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-9-995-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Aug 2021
Research article |
| 17 Aug 2021
| 17 Aug 2021
Controls on the grain size distribution of landslides in Taiwan: the influence of drop height, scar depth and bedrock strength
Géosciences Environnement Toulouse (GET), UMR 5563, CNRS/IRD/CNES/UPS, Observatoire Midi-Pyrénées, Toulouse, France
Section 4.6, Geomorphology, German Research Center for Geoscience, GFZ-Potsdam, Telegrafenberg, Potsdam, Germany
Laboratoire Cogitamus, Observatoire Midi-Pyrénées, Toulouse, France
Jens M. Turowski
Section 4.6, Geomorphology, German Research Center for Geoscience, GFZ-Potsdam, Telegrafenberg, Potsdam, Germany
Patrick Meunier
Laboratoire de Géologie, Ecole Normale Supérieure, Paris, France
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Short summary
The size of grains delivered to rivers is an essential parameter for understanding erosion and sediment transport and their related hazards. In mountains, landslides deliver these rock fragments, but few studies have analyzed the landslide properties that control the resulting sizes. We present measurements on 17 landslides from Taiwan and show that their grain sizes depend on rock strength, landslide depth and drop height, thereby validating and updating a previous theory on fragmentation.
The size of grains delivered to rivers is an essential parameter for understanding erosion and...
