{"id":1020,"date":"2023-04-12T12:29:04","date_gmt":"2023-04-12T06:59:04","guid":{"rendered":"http:\/\/knowledgekart.in\/blog\/?p=1020"},"modified":"2023-04-13T11:16:57","modified_gmt":"2023-04-13T05:46:57","slug":"the-himalayas-important-topic-for-upsc-mains","status":"publish","type":"post","link":"https:\/\/knowledgekart.in\/blog\/the-himalayas-important-topic-for-upsc-mains\/","title":{"rendered":"The Himalayas Important Topic For UPSC Mains"},"content":{"rendered":"\n

The Himalayas Important Topic For UPSC Mains<\/strong><\/p>\n\n\n

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\"\"<\/figure>\n<\/div>\n\n\n

Indian states involved:<\/p>\n\n\n\n

Jammu and Kashmir, Himachal\nPradesh, Uttarakhand, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram,\nWest Bengal<\/p>\n\n\n\n

Origin:<\/p>\n\n\n\n

    \n
  1. The Geosynclinal Origin:<\/strong><\/li>\n\n\n\n
  2. The disintegration of Pangaea led to the formation of a long Tethys Sea between the Lauratian Sheild of the north and the Gondwana land of the south.<\/li>\n\n\n\n
  3. This swa was occupying the region of the Himalayas during the Mesozoic Era.<\/li>\n\n\n\n
  4. At the end of the palaeozoic and beginning of the Mesozoic era, the Tethys almost girdled the whole Earth running from Europe in the west to China in the east.<\/li>\n\n\n\n
  5. Erodedmaterial from thr two land masses was deposited in the Tethys Sea and assumed considerable thickness due to the sinking nature of the sea bed.<\/li>\n\n\n\n
  6. During the cretaceous period, the bed of sea started rising which led to the folding of three successive ranges of Himalayas.<\/li>\n<\/ol>\n\n\n\n

    <\/p>\n\n\n\n

      \n
    1. The Plate Tectonic Origin:<\/strong><\/li>\n\n\n\n
    2. This is based in the concept of Sea Floor Spreading.<\/li>\n\n\n\n
    3. According to this theory, about 70m years ago, there was an extensive geosynclines called Tethys, in place of Himalayas.<\/li>\n\n\n\n
    4. The Indian plate came very close to the subducting under the Asian plate.<\/li>\n\n\n\n
    5. This caused lateral compression due to which the sediments of the Tethys were squeezed and folded into three parallet rangesof Himalayas.<\/li>\n\n\n\n
    6. Since the northward movement of the Indian plate is still continuing, the height if the Himalayan peak is increasing.<\/li>\n\n\n\n
    7. The Indian plate is moving northward and the centre of rotation is constantly changing.<\/li>\n<\/ol>\n\n\n\n

      Classification of Himalayas:<\/p>\n\n\n\n

      It can be classified as:<\/p>\n\n\n\n

        \n
      1. Longitudinally<\/li>\n\n\n\n
      2. Regionally<\/li>\n<\/ol>\n\n\n\n

        Longitudinal classification of\nHimalayas:<\/p>\n\n\n\n

          \n
        1. The\nTrans-Himalayas<\/li>\n\n\n\n
        2. The Greater\nHimalayas<\/li>\n\n\n\n
        3. The Lesser\nHimalayas<\/li>\n\n\n\n
        4. The Outer\nHimalayas<\/li>\n<\/ol>\n\n\n\n

          The Trans Himalayas:      <\/strong><\/p>\n\n\n\n