Article (Scientific journals)
Spatial interrelationship of landslides, litho-tectonic and climate regime, Satluj valley, Northwest Himalaya
Kumar, Vipin; Gupta, Vikram; Sundriyal, Y. P.
2019In Geological Journal, 54, p. 537-551
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Keywords :
Landslides; Himalaya
Abstract :
[en] Landslides have been considered widely as principal mass wasting agents in the valleys experiencing varied influence of tectonics and climate. However, pattern of landslides is rarely addressed in the literature that may act as a surface manifestation of interrelationship of tectonics, climate, and lithology. Here, we have attempted to understand such interrelationship in the context of landslide distribution pattern in the Satluj valley, Northwest Himalaya. Geomorphic indices such as steepness index, valley floor width to valley height ratio, and topographic swath profile were used for tectonic inference. Daily rainfall data of the year 2000–2016, using 5 rain‐gauge stations and swath profile of Normalized Difference Vegetation Index, were used to deduce spatial variability of climate. Influence of lithological variability and regional faults; Sangla Detachment, Main Central Thrust, and Munsiari Thrust on the landslide distribution are also inferred. A total of 55 landslides (20 rock avalanche, 19 debris slides, and 16 rockfalls) are found to exist in 6 clusters along 130 km stretch of the Satluj valley. These landslides, covering a total area (A) and volume (V) of 1.05 × 10⁷ m² and 4.4 × 10⁷ m³, respectively, are also noted to follow a power law (R² = 0.8) and result in a scaling relationship of V = (0.180)A1.208.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Kumar, Vipin ;  Université de Liège - ULiège > Département de géologie > Géologie de l'environnement
Gupta, Vikram
Sundriyal, Y. P.
Language :
English
Title :
Spatial interrelationship of landslides, litho-tectonic and climate regime, Satluj valley, Northwest Himalaya
Publication date :
2019
Journal title :
Geological Journal
ISSN :
0072-1050
eISSN :
1099-1034
Publisher :
Wiley
Volume :
54
Pages :
537-551
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 January 2021

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