Controls on the grain size distribution of  landslides in Taiwan: the influence of drop  height, scar depth and bedrock strength

Marc, Odin; Turowski, Jens M.; Meunier, Patrick

doi:https://doi.org/10.5194/esurf-9-995-2021

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.

https://doi.org/10.5194/esurf-9-995-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 9, issue 4

Research article

|

17 Aug 2021

Research article |

| 17 Aug 2021

Controls on the grain size distribution of landslides in Taiwan: the influence of drop height, scar depth and bedrock strength

Odin Marc, Jens M. Turowski, and Patrick Meunier

Supplement

https://doi.org/10.5194/esurf-9-995-2021-supplement

Data sets

Grain Size Distribution of 17 Taiwanese landslide deposits O. Marc, J. M. Turowski, and P. Meunier https://doi.org/10.4211/hs.ade683be61e54fa5b60da97418a5f3df

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.