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(Article of periodic en Anglais - 2013)

Document title

High rates of erosion and rapid weathering in a Plio-Pleistocene mudstone badland, Taiwan

published at : Updating badlands research

Authors(s) and Affiliation(s)

HIGUCHI K. (1) ; CHIRIGA M. (1) ; LEE D.-H. (2) ;
(1) Disaster Prevention Research Inst., Univ., Kyoto, JAPON
(2) Dept. of Civil Engineering, National Cheng Kung Univ., Tainan, TAIWAN, PROVINCE DE CHINE

Abstract

The badlands of southwest Taiwan are characterized by sharp ridges, and are located in a tropical monsoon area that experiences contrasting rainy and dry seasons. Surface erosion predominates and subsurface erosion by piping is rather limited to accumulation of mud in valley bottoms. Erosion rates on Plio-Pleistocene mudstone slopes, measured using erosion pins over a period of 4 years, averaged up to 9 cm/y in rainy seasons, which is considerably faster than the rates of a few cm/y typical in arid or semi-arid areas. Mudstone is deteriorated and saline materials are concentrated near slope surfaces. It is highlighted that the deteriorated surface layers are removed by rainfall in rainy seasons

Source

Thematical fascicle

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2013, vol. 106 [pp. 68-82]

Bibliographic references : 30 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2012.11.005

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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