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Joined: 13 Mar 2011 Posts: 198
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Posted: Thu May 12, 2011 7:34 pm Post subject: poorly consolidated |
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The hills of Darjeeling are part of the Mahabharat Range or Lesser Himalaya. The soil is chiefly composed of sandstone and conglomerate formations, which are the solidified and upheaved detritus of the great range of Himalaya. However, the soil is often poorly consolidated (the permeable sediments of the region do not retain water between rains) and is not considered suitable for agriculture. The area has steep slopes and loose topsoil, leading to frequent landslides during the monsoons. According to the Bureau of Indian Standards, the town falls under seismic zone-IV, (on a scale of I to V, in order of increasing proneness to earthquakes) near the convergent boundary of the Indian and the Eurasian tectonic plates and is subject to frequent earthquakes.[26]
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