Landsliding in sedimentary terrains : Processes, types and causes of landslides in the Sub-Himalayas of Nepal

ISBN-13: 9783659272844 / Angielski / Miękka / 2012 / 100 str.

Naresh Kazi Tamrakar

Opis

Sedimentary terrains of the Sub-Himalayas (Siwaliks) were built up in the foothills by thrusting and uplifting of the foreland sediments. The Siwaliks are geologically young of Neogene Period. Several north-south flowing subsequent rivers have incised the foothills consequently removing lateral support of the river valley slopes, and contributing for landsliding. The Siwalik rocks are typically characterized by high contrast in stiffness between interbedded sandstone and mudstone or between well cemented conglomerate and mudstone. Differential weathering in sedimentary layers, and erosion of mudstone, and potential structural discontinuities in sandstones further aggravate landsliding in the sedimentary terrains. Thrusting along major tectonic lines and tilting of sedimentary layers are also important causes.

O autorze

Dr. Tamrakar has authored more than 45 scientific research papers, and many text books. Tamrakar is the recipient of the Nepal Vidyabhushan Medal Ka and the Mahendra Vidyabhushan Gold Medal Kha . He is a faculty member (Associate Professor) of the Central Department of Geology, Tribhuvan University, Nepal.