Publication Date:
2005
Description:
The volume consists of modern researches on the Himalayan Mountain Geology
by eminent and active geoscientists of India and abroad. The formation of the Himalaya
is a result of collision tectonics and the rock- material from the deep interior was
exhumed for about 40 km and was horizontally transported for about 200 km along the Main
Central Thrust. Historically the development of Himalayan geology was adversely affected
due to World War I and II but notable contributions were made when India became
independent. Two layers of Siwalik sediments underlie the alluvium: the upper
Siwalik-1000m and lower Siwalik-4000m. Geophysically, it was determined that some of the
faults of the Himalaya are deep rooted (12 km). Palaeogene rocks are regressive and were
derived from the Indus Suture Zone. Granitoids of Kinnaur show mineralogical variations.
Alkali-silica reaction in rocks plays a significant role in the rock-strength property.
Rocks of the Yamuma valley were subjected to ductile and brittle-ductile deformation.
Dynamic rejuvenation due to vertical uplift is observed in geomorphological features.
The composite Main Central Thrust consisting of MCT-I, II and III occurs in the form of
a major Duplex characterized by shortening (60%) and ramping (8 km). The rocks of the
Almora Nappe were affected by pre-syn- and post-shear zones. The Mussoorie syncline
consists of pop-up klippen. Imbricated slices are associated with the thrusts. The
Himalayan rocks were metamorpho-sed in two distinct phases, which were progressive and
retrogressive and were related with three phases of deformation. Many geomorphological
features in the Himalayan region are marked by neotectonics. Geokinematics and
structural patterns of the whole Himalayan/Alpine belt indicate that their structural
architecture was made by compressional, rotational and strike slip movements. It is
hoped that the volume would be useful to researchers, academicians and geoscientists in
governmental and nongovernmental organisations of the country and abroad. 1. The
Formation of the Himalaya - Maurice Brunei, Stephane Dominguez, Georges Mascle 2.
Himalayan Geology: A Historical Perspective - Rasoul B. Sorkhabi 3. Magnetotelluric
Studies in Northwestern Himalaya - Gautam Gupta, S.G. Gokarn, C.K. Rao and C. Selvraj 4.
Sedimentology of the Palaeogene Succession in Jammu Region, Jammu and Kashmir State, NW
Himalaya - B.P. Singh, D.S. Andotra and J.S. Pawar 5. Biotite from Neoproterozoic
Granite Gneiss Cambro- Ordovician Granitoid and Neogene Leucogranite of Kinnaur
District, Himachal Pradesh - Santosh Kumar and Brijesh Singh 6. Relation Between
Mineralogical and Physical Properties of Coarse and fine Aggregates and Influence of
Textural, Chemical and Dimensional Difference on Strength of Mortar and Concrete, Manali
(H.P.) - S.C. Bhatt and Rajiv Kumar 7. Structure and Tectonics of the Yamuna Mylonite
Zone, District. Uttarkashi, Uttaranchal - A.K. Biyani 8. Geological and Morphotectonic
Studies Using Satellite Images of a Part of Tehri-Uttarkashi District, Lesser Garhwal
Himalaya - A.C. Pandey, P.S. Saklani and C.S. Dubey 9. Tectonic Geology of the Main
Central Thrust, Garhwal, Uttranchal - P.S. Saklani 10. Tectonic Evolution of The Almora
Nappe Along the Chhara- Someshwar Transect, Kumaun Himalaya - Mallickarjun Joshi and
A.N. Tiwari 11. Pop-up Klippen in the Mussoorie Syncline, Lesser Himalaya, Evidence from
Field and Model Deformation Studies - A.K. Dubey and R. Jayangondaperumal 12.
Development of the Thrusts in Garhwal Himalaya - Arun K. Shandilya 13. Metamorphic and
Deformation History of the Central Crystallines of the Upper Alaknanda Valley, Garhwal
Himalaya and its bearing on inverted Metamorphism - Surya Pratap Singh, Prem Swarup
Saklani, Alan Bruce Thompson 14. Structural and Metamorphic Studies of Rocks associated
with the Chail Unit and Main Central Thrust Zone of the Garhwal Himalaya - V.K. Singh
15. A Contribution to Metamorphic History of an Area of Chamoli Garhwal - B.C. Joshi 16.
Neotectonic and Morphotectonic Evolution of a Part of North Eastern Kumaun Himalaya -
Rameshwar Ball 17. Seismotectonic Studies in Manipur and Adjoining Areas - Arun Kumar
and Manichandra Sanoujam 18. Strike-Slip Related Structural Patterns and orogenic
Geokinematics of the Mediterranean-Central Asian Orogenic Belt - M. Kopp.)
Keywords:
Handbook of geology
;
Geol. aspects
;
India
;
China
;
Nepal
;
Tectonics
;
Plate tectonics
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