Neotectonism in the Indian Subcontinent
Developments in Earth Surface Processes Series, Vol. 22
Authors: Valdiya K.S., Sanwal JaishriLanguage: Anglais
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An erudite work on tectonic resurgence in Late Quaternary time of the Indian subcontinent embracing India, Pakistan, Nepal, Bhutan, and Bangladesh, Neotectonism in the Indian Subcontinent dwells on the causes and consequences of tectonic events that fashioned the landscape of a land characterized by a fragmented framework. The narratives on the structural and geomorphic developments during the morphogenic phase of the geodynamic history of the Indian subcontinent explain many phenomena. These include the tremendous height and spectacular structural-geomorphic architecture of the Himalaya, and the behaviour of wayward rivers in the sinking and rising Indo-Gangetic Plains. In addition are the shifting, deflection, piracy, and even disappearance of rivers and streams in the dry desertic terrane of western India, as well as the unique drainage pattern of the ruptured and rifted plateaus and coastal belts of Peninsular India. The formation of huge lakes due to river ponding in the stable continental shield in Karnataka is also explained. All of these phenomena are accompanied by profuse illustrations.
Neotectonism in the Indian Subcontinent portrays the evolution of the extraordinary landforms and landscapes of the subcontinent, constituted by multiple terranes of contrasted lithostructural architecture and distinctive geomorphic layout-each with an altogether different geological history. It chronicles events of crustal unrest or tectonic turmoil manifested as displacement, subsidence, and uplift of the ground with bizarre drainage changes and episodic seismicity. This book caters to planners, engineers, and hazard managers, but also satisfies the curiosity of those who are interested in understanding the formation of the Indian subcontinent.
- Identifies areas and belts recurrently ravaged by geological hazards resulting from neotectonic activities
- Provides a wealth of information on neotectonic movements and consequent modification of landscape, drainage aberrations, and ground vulnerability, including references that also provide additional resources for those who seek to pursue comprehensive investigations
- Includes much new observation and refreshing interpretation to explain many of the striking landforms of the region
1. The Dynamic Indian Crust 2. India: An Assemblage of Multiple Terranes 3. Himalayan Mobile Belt: The Main Arc 4. Terranes of Mountain Arcs and Festoons in Pakistan 5. Orogenic Belt of India-Myanmar Border Ranges 6. Ganga-Brahmaputra Plains 7. Sindhu-Ghagghar Plains 8. Sabarmati Plain and Saurashtra-Kachchh Terranes 9. Aravali Mobile Belt and Vindhyan Terrane 10. Satpura Horst and Narmada-Tapi Grabens 11. Sahyadri Ranges And Western Coastal Belt 12. Mysore Plateau And Nilgiri Massif 13. Deccan Plateau East of Northern Sahyadri 14. Bastar and Singhbhum Cratons With Their Mobile Belts And Gondwana Grabens 15. Eastern Ghat Ranges And East Coast 16. Andaman-Nicobar Island Arc
- Geohazard specialists
Dr. Jaishri Sanwal is Research Scientist and Principal Investigator for the Geodynamics Unit at Jawaharlal Nehru Centre for Advanced Scientific Research. She has been granted several fellowships and specializes in tectonics with special reference to active faults and paleoclimatic changes. Thirteen years of experience of working in the field on active tectonics in the central and western sectors of the Himalayan Mountain including Ladakh and Kashmir.
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