Himalaya (Geological Aspects) Vol 2

Himalaya (Geological Aspects) Vol 2

by P S Saklani
  • ISBN: 8190228986
  • Binding: Hardbound
  • Year: 2005
  • Language: English
PRICE:  US $ 150.00
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The volume is mainly focussed on structural and metamorphic characteristics of the Himalayan rocks exposed in various sectors of the Himalaya. The peridotites in the Spongtang nappe of Ladakh are mylonitised and occur in superposed imbrications. The regionally metamorphosed pelitic rocks of a part of Kashmir show low pressure, intermediate and medium pressure of metamorphism. The Buniyar granite is an intrusive plunton in the Dogra Slates (Precambrian) in the Western part of Kashmir. The NE-SW compressional stress was responsible for development of multiple folds in metamorphics of Chamba area. The radiometric date of granites in Chor mountain is Pre-Tertiary (1000 m.y and 525 m.y.). The metamorphic and folding processes of the Chor pelites were terminated by the Jutogh thrusting phenomena. The crystallines of Palampur (Himachal) are characterised by the Chail thrust and contain about 12 types of garnet texturally. The Manali-Rohtang Pass area forms a part of an overturned limb of the Crystalline nappe. The thrusts in the Kumaun region developed from the hinterland to foreland. The total displacement of the Munsiari, Krol and Berinag Sheets was about 330 km. The Purola area in Garhwal is located between the Main Central Thrust and the Tons Thrust. Metamorphics in the Bhagirathi valley were formed at the temperatures ranging from 479° to 666° C. The uranium mineralisation in the granite-gneisses and the footwall quartzite took place after the formation of the Main Central Thrust III in Tehri Garhwal. The rock-fabric (b-c girdles of quartz) in rocks of Lansdowne Crystalling nappe developed along the thrust-transport direction with rotation which is exhibited by triclinic symmetry. The fracture and lineament patterns were formed in the frontal parts of the Himalaya. The Lesser Himalaya region in Himachal Pradesh has overlapping crystalline thrust. The Chail nappes are traceable throughout the length of the Lesser Himalaya. The nappe thrusting in two phases occurred in Eastern Nepal during middle Tertiary and Quaternary times. Simple shear type of deformation affected the rocks in Eastern Nepal. The high heat flow in rocks of Darjiling region was responsible for the first phase of metamorphism which was followed by overturning and thrusting during the second phase of deformation. The metapelites in Eastern Sikkim are characterised by Kyanite-sillimanite isograd with associated quartzofeldspathic melt during pre-and syn-kinematic deformation. The reflected Aravalli trends are present in Arun transanticline and Tista Dome in Bhutan. The Central Tibetan region was possibly the homeland for the nappes in the Eastern Himalaya.

These volumes would be useful to earth scientists, academicians, research scholars and for those interested in complex problems of the geology of the Himalaya.

Dr. P.S. Saklani (b. 28.8.1941) is a Professor of Geology at the University of Delhi for the last three decades. Formerly he was the Vice Chancellor of HNB Garhwal University, Uttaranchal from 1999 to 2001 and the Chairman of the Commission for Scientific and Technical Terminology, Govt, of India from 1994-1998. He was elected as President of Earth System Sciences of the 85th Session of the Indian Science Congress in 1997-98. Prof. Saklani has been a recipient of several and awards (e.y. Consulting Editor of American Biographical Institute, Releigh, U.S.A; 21 st Century Award 2000; U.P. Ratna Award etc.). He has authored four original books and published 56 research papers on Himalayan Geology. He has guided 11 strudents for Ph.D. and 11 Students for M.Phil, degrees.

  • The Central Himalayan Gneisses in Northern Pakistan
  • Ductile Shearing in Peridotites of Spongtang Nappe, Ladakh /.
  • Low-Pressure Metamorphism in a Regionally Metamorphic Terrain of Doda, Kashmir Himalaya
  • The Buniyar Granite of the Kashmir Himalaya
  • The Aureole Zone and Metasediments of Dhauladhar, Chaori Khas (H.R)
  • Geochronology of Bandai Granitoids, Kulu, Himachal Pradesh
  • The Jutoghs and their Structural History, Chur Area
  • Garnets from Metapelites of the Palampur Area (H.P.)
  • Metamorphics of Manali-Rohtang Area, NW Himalaya
  • Structural Analysis of Chamba Region, Himachal Pradesh
  • Structures of Purola Area, Garhwal Himalaya
  • Mylonites of Dunda area, Uttarakashi, Uttaranchal
  • Metamorphics of the Bhagirathi Valley, Garhwal Himalaya
  • Uranium Mineralisation around Raunsal, Uttaranchal
  • Naini-Group/Nappe Rudraprayag (Garhwal Himalaya)
  • Fabric of the Amri Tectonites, Lansdowne Area, Uttaranchal
  • Tectonics of Central Crystallines Nappes, Garhwal Himalaya
  • Reinterpretation of the Tectonics of the Central andSouthern Lesser Himalaya, Uttaranchal
  • Structural Evolution of the Kumaun Lesser Himalaya
  • Structure of the Kumaun Lesser Himalaya
  • Central Crystallines and Main Central Thrust, Eastern Kumaun Himalaya
  • The North Almora Thrust Zone, Kumaun Himalaya
  • Fractures and Lineaments in the Lesser Himalaya of Kumaun
  • The Chail Nappes in the Himalaya
  • Chail Metamorphics of the Himachal Pradesh
  • Relief Thrusts in the Eastern Nepal Himalaya
  • Structure and Metamorphism in Eastern Nepal
  • Mesoscopic Structures and Tectonics of the Central Nepal Himalaya
  • Barrovian Metamorphism of Takdah, Darjeeling (Eastern Himalaya)
  • Deformation and Strain of the Himalayan Nappes : Sikkim, Eastern Himalaya
  • The Bhutan Himalaya : Stratigraphy and Structure
  • Eastern Himalayan Stratigraphy and Tectonics
  • Structural Geology of the Siyom Valley, Arunachal Pradesh