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The Tethys Himalaya is an approximately 100-km-wide synclinorium formed by strongly folded and imbricated, weakly metamorphosed sedimentary series. Several nappes, termed the "North Himalayan Nappes", [18] have also been described within this unit.
The geology of Himachal Pradesh is dominated by Precambrian rocks that were assembled and deformed during the India-Asia collision and the subsequent Himalayan orogeny. The Northern Indian State Himachal Pradesh is located in the Western Himalaya (Fig. 1).
The Himalayas, or Himalaya (/ ˌ h ɪ m ə ˈ l eɪ. ə, h ɪ ˈ m ɑː l ə j ə / HIM-ə-LAY-ə, hih-MAH-lə-yə) [b] is a mountain range in Asia, separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has several peaks exceeding an elevation of 8,000 m (26,000 ft) including Mount Everest, the highest mountain on ...
The Lesser Himalayas is made up mostly of unfossiliferous sedimentary and metasedimentary rocks; such as shale, sandstone, conglomerate, slate, phyllite, schist, quartzite, limestone and dolomite. The rocks range in age from Precambrian to Miocene. The geology is complicated due to folding, faulting, and thrusting and are largely unfossiliferous.
Lower Himalayan Range in Tansen, Nepal with the Great Himalayas in the background. The Lower Himalayan Range, also called the Lesser Himalayas or Himachal, is one of the four parallel sub-ranges of the Himalayas. [1] [2] It has the Great Himalayas to the north and the Sivalik Hills to the south.
the Greater Himalayan Crystalline complex, which is mainly composed by high-grade gneiss and migmatite, fringed below by the Main Central Thrust and the South Tibetan Detachment; and; the Tethyan Himalayan Sequence, mainly composed by Proterozoic to Eocene sediments, deformed in a Paleogene fold-thrust belt, fringed below by the South Tibetan ...
A geological map of the Himalaya region. The Main Himalayan Thrust underlies the rock units. Diagram showing a décollement. The Main Himalayan Thrust (MHT) is a décollement under the Himalaya Range. This thrust fault follows a NW-SE strike, reminiscent of an arc, and gently dips about 10 degrees towards the north, beneath the region.
The Himalaya offers many opportunities to study all factors that go into mountain building such as continental collisions, erosion, and even climatic changes. In order to understand the structural complexity of the Himalaya orogen, understanding the South Tibet detachment is critical to figuring out the exact time and processes involved in the ...