Tectonics of the Nanga Parbat syntaxis and the western Himalaya: an introduction
Published:January 01, 2000
Peter J. Treloar, Michael P. Searle, M. Asif Khan, M. Qasim Jan, 2000. "Tectonics of the Nanga Parbat syntaxis and the western Himalaya: an introduction", Tectonics of the Nanga Parbat Syntaxis and the Western Himalaya, M. Asif Khan, Peter J. Treloar, Michael P. Searle, M. Qasim Jan
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Often described as a natural laboratory, the Himalaya are probably the ideal place in which to study ongoing continent-continent collision. This volume focuses on the geology of the northwestern part of the Himalaya which provides the most complete and best-exposed transect across the range. Here, in northern Pakistan and in Ladakh in northwest India, the full profile across the south Asian continental margin, and the north Indian margin is superbly exposed in mountains reaching as high as K2 (8611 m) and Nanga Parbat (8125 m). The south Asian geology is exemplified in the Karakoram and Hindu Kush ranges along the north and northwestern frontiers of Pakistan. The unique Kohistan-Dras island-arc terrane is sandwiched within the Tethyan suture zone between India and Asia. Rocks of the northern margin of the Indian Plate are exposed in both the Zanskar and the Pakistan Himalaya. The northern sedimentary carbonate platform of the Indian Plate, magnificently exposed in the mountains of Zanskar and Ladakh, is largely missing in Pakistan where the Kohistan arc has been obducted southward onto the metamorphosed rocks of the internal crystalline zones of the Indian Plate. The Nanga Parbat syntaxis represents an orogenic bend developed within a convergent zone in the thrust belt where the south-vergent thrusts of the central and eastern Himalaya swing around through 300 degrees.
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Tectonics of the Nanga Parbat Syntaxis and the Western Himalaya
The western syntaxis of the Himalaya is one of the most exciting frontiers of continental tectonis studies. The region around the mountain of Nanga Parbat has some of the highest peaks, deepest valleys and highest uplift, exhumation and erosion rates known on earth. Surrounding regions include the Hindu Kush and Karakoram mountains (Asian plate), the Kohistan island arc and the Ladakh and Zanskar ranges of the western Himalaya (Indian plate). This volume includes 24 papers on all these regions as well as five new fold-out maps of the eastern Hindu Kush, the Spontang Ophiolite region of Ladakh, part of the west margin of the Indian plate, the Indus syntaxis in Pakistan and the Bouguer gravity anomalies in Pakistan.