Physiography of Nepal
Physiography of Nepal A profile across the Himalaya illustrates the subdivisions • Terai • Siwalik Range (or briefly Siwaliks) with dun valleys • Mahabharat Range • Midlands • Fore Himalaya • Great Himalaya • Inner Himalayan valleys • Tibetan marginal ranges. Terai The Terai Plain is represented by Pleistocene to Holocene sediments and is part of the Ganga foreland basin. In Nepal there are three separate areas where the alluvium is observed south of the Siwalik hills. Its width varies from about 30 km in west Nepal to about 40 km in central Nepal, and from 25 to 50 km in east Nepal . the Terai slopes towards the south and the altitudinal difference between the Siwalik foothills and the Indian border ranges from 100 to 200 m. The Terai is subdivided into the three zones , respectively, from north to south. Upper Terai or Bhabar Zone : The Bhabar (or Bhabhar) zone is observed at the foot of the Siwaliks and it is made up of coalescing alluvia...
