Structural Geology, Tectonics, Himalayan Geology

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Professor Areas of interest: Structural Geology, Tectonics, Himalayan Geology Qualification: MSc, PhD LABORATORIES SUPERVISED: *Thermal Ionization Mass Spectrometer (TIMS) Name of the OC: (Under

1 Professor Areas of interest: Structural Geology, Tectonics, Himalayan Geology Qualification: MSc, PhD LABORATORIES SUPERVISED: *Thermal Ionization Mass Spectrometer (TIMS) Name of the OC: (Under construction) AK Jain Equipment and facilities available: Electron Probe Micro Analyser Laboratory at USIC was established under a DST sponsored research project with Prof VSK Dave as Principal Investigator and Prof AK Jain as Principal Co-Investigator Now, it runs as a National Facility *National Facility on Geochronology/Isotope Geology, University of Roorkee, Roorkee Earth Scientist have recently realized various constraints in existing national facilities for determining Isotopic abundances and dates of various rocks and minerals The Department of Science and Technology (DST) has, therefore, sanctioned the "National Facility on Geochronology/Isotope Geology, University of Roorkee, Roorkee This facility will be installed at the University Science Instrumentation Centre (USIC) of this university under the guidance of Prof AK Jain (Department of Earth Sciences) and Prof Kailash Chandra (USIC) The facility will incorporate one of the most sophisticated and modern instrument, known as Thermal Ionization Mass Spectrometer (TIMS) along with its associated laboratories including the chemical laboratories This facility will be made operative in next 2 years for which the DST has sanctioned a sum of Rs lacs and an additional funding of Rs 1500 lacs by the UP State Govt The total cost of the project is Rs lacs out of which the main instrument will cost approximately Rs lacs

2 RESEARCH PROJECTS: Current Research projects going on: 1 National Facility on Geochronology/Isotope Geology, University of Roorkee, Roorkee (Principal Investigator and Coordinator; DST, Rs lacs)- Lab Construction in Progress at USIC 2 Geodynamics and exhumation of high grade terrain of South India: Role of intracontinental shear zones (Principal Investigators, DST, Rs 1100 lacs) 3 Tectonics, P-T constraints and timing of India-Asia collision along NW Himalayan geotransect Coordinator, DST, Rs 2200 lacs) Previous research project undertaken: 1 Evolution of Metamorphic Belts in Phanerozoic collision zones in Himalaya (PI Prof VKS Dave, DS, Rs 8300 lacs) 2 Tectonometamorphic evolution of Lesser and Higher Himalayan Metamorphics along Mandi-Jispa, Himachal Pradesh (PI - Prof AK Jain, DST, Rs 480 lacs) 3 Geodynamics and exhumation of NW Himalaya (PI - Prof AK Jain, AICTE, Rs 600 lacs) Note: Please use extra wherever necessary SIGNIFICANT CONTRIBUTION IN RESEARCH: Cenozoic collision tectonics in the NW-Himalaya has been modelled as the remobilised Proterozoic metamorphic belt within a km wide intracontinental ductile shear zone, where intense penetrative non-coaxial ductile shearing has extensively transposed an older pre-500 Ma fabric with the development of most penetrative shear foliation and down-dip stretching lineation The Main Central Thrust and other related thrusts were demonstrated to have evolved during brittle-ductile/brittle deformation Simultaneous superposed ductile extensional structures have caused rapid exhumation of an overthickened crust by a combination of (i) discrete ductile normal fault zones, (ii) laterally-spreading windows, and (iii) gravity-glided thrust zones The Himalayan inverted metamorphism is characterised by garnet isograd near the Main Central Thrust, and followed up-section by successive higher grades up to sillimanite-kfeldspar (~ 10 kbar and 7800C) due to partially subducted continental crust A new and widely-quoted ductile shear zone model showed that metamorphic isograds can be inverted by ductile shear fabric within the intracontinental shear zone In contrast, leading northern edge of the eclogitised Indian Plate, marked by the Tso Morari Crystallines, has impinged and imbricated the Indus Suture ophiolite belt at ~ 60 km depth Non-uniform exhumation rates are mainly controlled by fastest uplifted Himalayan windows/domes, and an accelerated exhumation of the Great Himalayan Range during the Pliocene- Pleistocene In addition, an Early Miocene event has been recognised and has caused faster tectonic denudation of the rising Himalaya Within the Himalaya variable exhumation rates, deduced from thepliocene-quaternary FT zircon-apatite ages from the Himalayan Metamorphic Belt (HMB) of the NW Himalaya along the Sutlej Valley in Himachal Pradesh, have been modelled in the tectonic framework of fast exhumed Lesser

3 Himalayan windows, which caused lateral extensional sliding of the metamorphic nappe cover along the well-known Main Central Thrust (MCT) and differential movements along thrust zones as well PhD THESIS SUPERVISED 1 SK Gupta, 1983 Petrology and Tectonics of the Central Crystallines between Bhagirathi and Yammuna Valleys, Garhwal Himalaya 2 PK Sharma, 1985 Applications of Nuclear track detectors in the study of geochronology of Kumaon-garhwal Himalaya trace element analysis of various materials 3 A Anand, 1986 Deformation and strain pattern of the Central Himalayan metamorphics from northwestern Garhwal 219 pp 4 RC Patel, 1992 Structural geometry and strain patterns of the collision zone, NW- Himalaya 219 pp 5 M Karamati Moezabade, 1992 Sedimentological studies of the Indus suture Zone rocks, Ladakh, NW- Himalaya, India, with special reference to their source rock revaluation for petroleum 190 pp 6 A Asokan, 1993 Metamorphic Evolution of the Higher Himalayan Crystalline, Zanksar, Jammu and Kashmir 131 pp 7 Ashok Kumar, 1992 Calibration of Fission Track dating system and its applications in Geothermochronometry of a part of NW-Himalaya in Zanskar and Himachal Pradesh 180 pp 8 Sandeep Singh, 1994 Collision Tectonics: metamorphic and geochronological constraints from parts of Himachal Pradesh, NW-Himalaya 289 pp 9 AH Tizro, 1995 An integrated hydrogeological study of mdendragash district, Haryana, India 10 Yash Paul, 1995 (submitted) Exhumation history of Mandi-dalhousie-Bandal regions, NW-Himalaya, Himachal Pradesh-a Fission Track Study 134 pp 11 J Das, 1995 Tectonics of the Shillong Plateau and adjoining regions in Northeast India using field and remotely sensed data 201 pp 12 Devender Kumar, 1999 Fission track zircon-apatite ages and exhumation of the Himalayan Metamorphic Belt (HMB) along Beas-Sutlej Valleys, Himachal Pradesh 86 pp 13 Bahman Soleimani, 1999 Sediment-uplift history and petroleum source rock study of Cenozoic Foreland basin of NW Himalaya, HP, India 207 pp CONSULTANCY AND SPONSORED PROJECTS: SPONSORED RESEARCH PROJECTS

4 * Principal Investigator - Structural and strain geometry of Indus Suture and Shyok Suture, Ladakh Himalaya (UGC) * Principal co-investigator - Evolution of metamorphic belts in Collision zones (DST) * Principal Co-investigator - Electron probe Microanalyser Laboratory: its operation and maintenance (DST) * Principal Investigator - Geodynamics and evolution of the NW-Himalaya (AICTE) * Principal Investigator - Paleoseismicity: geological evidences along the Kaurik-chango Fault Zone and other related areas in Lahaul-Spiti and ladakh Himalaya (DST) * Principal Investigator - Tectonometamorphic exhumation of Lesser and higher Himalayan Metamorphic Belts, mandi-jispa, Himachal Pradesh (DST) * Principal Investigator - Geodynamics and exhumation of high grade terrains: Role of major intracontinental Shear Zones, South India (DST) * Co-ordinator - Tectonics, P-T constraints and timing of India - Asia Collision, Ladakh, (DST) * Coordinator & Principal Investigator - National Facility on Geochronology/Isotope Geology, University of Roorkee, Roorkee (DST) CONSULTANCY PROJECT * Principal Investigator: National Thermal Power Corporation, New Delhi - Geohydrological Studies of Ash Pond Areas, Rihand Super Thermal Power Project * Principal Investigator: National Thermal Power Corporation, New Delhi - Geohydrological studies of Ash Pond Areas, Singrauli Super Thermal Power Project * Principal Investigator: National Thermal Power Corporation, New Delhi Geohydrological studies of Ash Pond Areas, Vindhyachal Super Thermal Power Project Ongoing * Principal Investigator: National Thermal Power Corporation, New Delhi Geohydrological studies of Ash Pond Area, Talcher Super Thermal Power Project SIGNIFICANT PUBLICATIONS (A) Research Papers published in full 1 AK Jain, 1971 Stratigraphy and tectonics of the Lesser Himalayan region of Uttarkashi Garhwal Himalaya, Him Geol, v 1, p AK Jain, DM Banerjee and RS Mithal, 1971 Correlation of unfossiliferous Lesser Himalayan formations of Garhwal Him Geol, v 1, p AK Jain, 1972 overthrusting and emplacement of basic rocks in Lesser Himalaya Garhwal, UP Jour Geol Soc India, v 13(3) p AK Jain, 1972 Heavy minerals in Precambrian quartzite of the Lesser Himalaya, Garhwal, India Jour Sedim Petrol, v 42 (4), p AK Jain, VC Thakur and SK Tandon, 1974 Stratigraphy and structure of the Siang District, Arunachal (NEFA) Himalaya Him Geol, v 4, p 23-60

5 7 AK Jain, 1975 Structure and Petrology of mylonite and related rocks from the Lesser Himalaya, Garhwal, India Geol Rundschau, v 64 (1), p AK Jain and VC Thakur, 1975 Stratigraphy and tectonic significance of the Eastern Himalayan Gondwana Belt with special reference to the Permocarboniferous Ranjit Pebble slate Indian Geol Assoc Bull, v 18(2), p VC Thakur and AK Jain, 1975 Some Observations on deformation, metamorphism and tectonic significance of the rocks of some parts of the Minshmi Hills, Lohit district (NEFA), Arunachal Pradesh Him Geol, v 5, p VC Thakur and AK Jain, 1975 Strain history of the Pangin synform of Siang District of NEFA Himalayas as deduced from deformed pebbles Jour Geol Soc India, v 16, p S Singh, VN Singh, AK Jain, LS Srivastava and PSinha, 1976 The Kinnaur Earthquake of January 19, 1975 a field report, Bull Seism Soc America, v 66(3) 12 AK Jain and N Varadarajan, 1978 Stratigraphy and provenance of Late palaeozoic diamictites in parts of Garhwal Lesser Himalaya, India Geol Rundschau, v 67(1), p AK Jain and VC Thakur, 1978 Abor Volcanics of the Arunachal Himalaya Jour Geol Soc India, v 19(8), p KN Khattri, K Rai, AK Jain, H Sinhval, VK Gaur and RS Mithal, 1978 The Kinnaur Earthquake Himachal Pradesh, India of 19 January, 1975 Tectonophysics, v 49, p AK Jain, RK Goel and NGK Nair, 1980 Implications of Pre-Mesozoic geological evolution of the Himalaya and Indo-Gangetic Plains Tectonophysics, v 62, p AK Jain, 1981 Stratigraphy, petrography and paleogeoraphy of the Late Paleozoic diamictites of the Lesser Himalaya Sedim Geol, v 30, p CT Klootwijk, AK Jain and R Khorana 1982 Paleomagnetic constraints on allochthony and age of the Krol Belt sequence, Garhwal Himalaya, India, Jour Geophysics, v 50, p A Anand and AK Jain, 1987 Earthquakes and deformation structures (seismites) in Holocene sediments from the Himalayan-Andaman Arc, India Tectonophysics, v 133, p RK Goel, M Mato, AK Jain and SS Srivastava, 1987 Fauna from the `Muth Quartzite' Garhwal Himalaya, India Jour Fac Sci, Hokkaido Univ, v 22(2), p AK Jain, 1987 Kinematics of the transverse lineament, regional tectonics and Holocene stress field in the Garhwal Himalaya, Jour Geol Soc India, v30(3), p AK Jain and A Anand, 1988 Deformation and strain patterns of an intracontinental ductile shear zone-an example from the Higher Garhwal Himalaya Jour Struct Geol v 10(7), p JA Talent, RK Goel, AK Jain and JW Pickett, 1988 Silurian and Devonian of India Nepal and Bhutan: biostratigraphic and Palaeobiogeographic Anomalies Cour Forsch -Inst Senckenberg, v 106, 55 pp 23 RC Patel, S Singh, A Asokan, RM Manickavasagam and AK Jain, 1993 Extensional Tectonics in the Himalayan Orogen, Zanskar, NW India In: Treloar, PJ and

6 Searle, MP, Himalayan Tectonics, Special Publication Geological Society of London, No 74, p S Singh and AK Jain, 1993 Deformation and strain pattern in parts of the Jutogh nappe along the Sutlej valley in Jeori-Wangtu region, Himachal Pradesh, India Jour Him Geol, v 4(1), p AK Jain and RM Manickavasagam, 1993 Inverted metamorphism in the intracontinental ductile shear zone during Himalayan Collision Tectonics Geology, v 21, p RB Sorkhabi, AK Jain, S Nishimura, T Itaya, N Lal, RM Manickavasagam and T Tagami, 1994 New age constraints on cooling and unroofing history of the Trans- Himalayan Ladakh Batholith (Kargil area), NW India Proc Indian Acad Sci (Earth Planet Sci), v 103, p RC Patel, and AK Jain, 1994 Strain patterns of the Shergal ophiolite melange of the Indus Suture Zone, Ladakh Jour Him Geol, v 5(2), p AK Jain and RM Manickavasagam, 1994 Reply to comments by Searle, MP, Dransfield MW and Johnson, MRW on Inverted metamorphism in the intracontinental ductile shear zone during Himalayan Collision Geology, v 22, p JD Das, AK Saraf and AK Jain, 1995 Fault tectonics of the Shillong Plateau and adjoining regions, north-east India using remote sensing data Inter Jour Remote Sensing v 16 (9), p A Kumar, N Lal, AK Jain and RB Sorkhabi, 1995 Late Cenozoic-Quaternary thermotectonic history of Higher Himalayan Crystalline (HHC) in Padar-Zanskar region, NW Himalaya: Evidence from fission track ages Jour Geol Soc India, v 45, p AK Jain and R Chander, 1995 Geodynamic modelling of the Uttarkashi Earthquakes In: Gupta HK and Gupta GD (Eds) Uttarkashi Earthquake Mem Geol Soc India 30, p RB Sorkhabi, E Stump, KA Foland and AK Jain, 1996 Fission track and 40Ar/39Ar evidence for episodic denudation of the Gangotri Granites in the Garhwal Higher Himalaya, India Tectonophhysics, v 260, p AK Jain and RM Manickavasagam, 1997 Discussion on paper by Hubbard M "Ductile shear as a cause of inverted metamorphism: Example from the Nepal Himalaya" Jour Geology, v 105, p RB Sorkhabi, AK Jain, T Itaya, Fukui, Nand Lal and A Kumar, 1997 Cooling age record of domal uplift in the core of the higher Himalayan Crystallines (HHC) southwest Zanskar, India Proc Indian Acad Sci (Earth Planet Sci), v 106 (3), p RM Manickavasagam, AK Jain, S Singh and A Asokan, 1999 Metamorphic evolution of the northwest Himalaya, India: Pressure - temperature data, inverted metamorphism, and exhumation in the Kashmir, Himachal and Garhwal Himalayas In: Macfarlane, A, Sorkhabi, RB, and Quade, J (Eds) Himalaya and Tibet: Mountain Roots to Mountain Tops Geol Soc America Special Paper 328, p AK Jain, Devender Kumar, Sandeep Singh, Ashok Kumar, Nand Lal, 2000 Timin, quantification and tectonic modelling of Pliocene-Quaternary movements in the NW Himalaya: evidence from fission track dating Earth Planet Sci Lett 179, SK Tandon, VC Thakur and AK Jain, 1974 Discussion on paper by Cambell, DR `Tillite horizons of the Himalaya' Geol Mag, v (6), p

7 45 AK Jain, S Singh, RC Patel and DG Gee, 1991 Extensional tectonics in orogenic belts: Comparative structures from the Himalaya and Scandinavian Caledonides Terra Nova, v 4, p JD Das, AK Saraf and AK Jain, 1996 A satellite reveals seismically potential tectonic structures in NE India Inter Jour Remote Sensing v AK Jain, 1990 Geodynamics of the Indian Lithosphere: time goal for the next decade Mem Geol Soc India, v 18, p AK Jain, A Nagar and DC Singhal, 1984 Crustal evolution of the Narmada-Sone lineament and associated shear zones of the Indian Lithosphere Indian Jour Earth Sciences, CEISM Seminar, p A Anand, AK Jain and H Sinhval, 1986 Earthquake-induced deformational structures (seismites) in soft-sediments from the Central Himalaya, India Proc Inter Symp Neotectonics in South Asia, p RC Patel and AK Jain, 1997 Deformation and strain patterns in the Tethyan Sedimentary Zone, Zanskar, NW-Himalaya In: Sinha AK, Sassi FP and Papanikolaou D(Eds) "Geodynamic Domains in Alpine-Himalayan Tethys": A publication of IGCP Project 276 Oxford, & IBH, New Delhi, p AK Jain and RM Manickavasagam, 1999 Geodynamics of the NW Himalayas: an introduction Gondwana Res Group Mem 6, p v - viii 57 AK Jain, RM Manickavasagam and S Singh, 1999 Collision Tectonics in the NW Himalaya: deformation, metamorphism emplacement of leucogranite along Beas-Parbati Valleys Himachal Pradesh In: Jain, AK and Manickavasagam, RM (Eds) Geodynamics of the NW Himalaya Gondwana Res Group Mem 6, p AK Jain and RC Patel, 1999 Structure of the Higher Himalayan Crystallines along the Suru-Doda Valleys (Zanskar), NW Himalaya: Gondwana Research Group Memoir 6, p S Purkaystha, PK Verma, AK Jain, RM Manickavasagam, 1999 Growth and rotation of porphyroblasts and development of shear/extensional foliation in Bagi-Mandi- Pandoh region, Western Himalaya-implications on the Himalayan tectonics: Gondwana Research Group Memoir 6, p Nand Lal, YP Mehta, D Kumar, A Kumar and AK Jain, 1999 Cooling and exhumation history of the Mandi granite and adjoining tectonics units, Himachal Pradesh, and estimation of closure temperature from external surface of zircon: Gondwana Research Group Memoir 6, p RB Sorkhabi, Edmund Stump, Kenneth Foland and AK Jain, 1999 Tectonic and colling history of the Garhwal Higher Himalaya (Bhagirathi Valley): constraints from thermochronological data: Gondwana Research Group Memoir 6, p AK Jain and E Balasubramanium, 1981 Petrography and provenance of Late Paleozoic Gondwana diamictites of the Eastern Himalaya In: Hambrey, MJ and Harland, WB (Eds), Pre-Pleisotcene Tillites: A record of Earth's glacial history Cambridge University Press, Cambridge, p AK Jain, CT Klotzwijk, and KC Goswami, 1981 Late Paleozoic diamicties of the Lesser Garhwal Himalaya In: Hambrey, MJ and Harland, WB (Eds) Pre-Pleisotcene Tillites: A record of Earth's glacial history Cambridge University Press, Cambridge, p AG Jhingran, and AK Jain (Eds) 1972 Himalayan Geology, v 2 pp

8 67 AK Jain and RM Manickavasagam (Eds) 1999 Geodynamics of the NW Himalaya Gondwana Research Group Memoir 6, 377 pp 68 AK Jain, Sandeep Singh and RM Manickavasagam (In press): Himalayan Collision Zone: an excursion guide book along the Bhagirathi valley, Garhwal Himalaya Gondwana Research Group Memoir OTHER ACADEMIC ACTIVITIES: (i) Leader of Expeditions * Arunachal Pradesh (NEFA) in 1971 and 1972 * Garhwal (Lapthal) Ladakh-1984, Zanskar -1987, 1989 * Great Himalayan Range (SE-Kashmir )-1988 * Tso Morari (SE-Ladakh)-1998, Karakoram and Pangong-1999, * Expedition to Artic Svaldbard (Spitsbergen) (ii) Field Work in Himachal, Kashmir, Garhwal-Kumaon, Arunanchal Pradesh, Andamans; Arctic Svalbard (spitsbergen), Scandinavian Caledonides (Norway-Sweden), Scottish Highlands and Alps and Rhein Graben, West Germany

Volume 10. Chief Editor : R.C. Misra Executive Editor : A.K. Sinha Asstt. Editor : A.K. Dubey

Volume 10. Chief Editor : R.C. Misra Executive Editor : A.K. Sinha Asstt. Editor : A.K. Dubey HIMALAYAN GEOLOGY Volume 10 Chief Editor : R.C. Misra Executive Editor : A.K. Sinha Asstt. Editor : A.K. Dubey Members V.C. Thakur J.T. Gergan N.S. Virdi K.S. Bist S. Kumar N.S. Gururajan WADIA INSTITUTE