Abstract
We present the results of studying the geoelectrical structure of the zone of continental subduction of the Indian lithospheric plate within the Gahrwal Himalaya. In the framework of the Russian–Indian project, the data of the broadband magnetotelluric soundings conducted by the Indian Institute of Technology Roorkee on the regional profile across the structures of the orogen were expanded, processed, and interpreted by the new program tools adapted for the measurements in the mountain conditions and for the presence of industrial noise. The constructed model of the deep electrical conductivity cross section for Garhwal revealed its two-dimensional (2D) features and more accurately delineated the location of the midcrustal conductor associated with the ramp structure of the detachment plane. The correlations with the regional distribution of the earthquake hypocenters and the seismotomographic images suggest a common, fluid-related nature of the seismic and geoelectrical anomalies in the crust of the Garhwal Tectonic Corridor and enabled the identification of the seismogenerating zones. Among the data of the expanded profile set of magnetotelluric and magnetovariational transfer functions, the response of a poorly explored deep conductive body is revealed. This object is located east of the profile and is probably associated with the activation of the ancient trans-Himalayan cratonic structures which prepares the segmentation of the Himalayan arc.
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Arora, B.R. and Mahashabde, M.V., A transverse conductive structure in the northwest Himalaya, Phys. Earth Planet. Inter., 1987, vol. 45, no. 2, pp. 119–127.
Arora, B.R., Unsworth, J.M., and Rawat, G., Deep resistivity structure of the northwest Indian Himalaya and its tectonic implications, Geophys. Res. Lett., 2007, vol. 34, L04307.
Ashish, P.A., Rai, S.S., and Gupta, S., Seismological evidence for shallow crustal melt beneath the Garhwal High Himalaya, India: implications for the Himalayan channel flow, Geophys. J. Int., 2009, vol. 177, no. 3, pp. 1111–1120.
Bai, D., Unsworth, M.J., Meju, M.A., Ma, X., Teng, J., Kong, X., Sun, Y., Sun, J., Wang, L., Jiang, C., Zhao, C., Xiao, P., and Liu, M., Crustal deformation of the eastern Tibetan plateau revealed by magnetotelluric imaging, Nat. Geosci. Lett., 2010. doi 10.1038/NGEO830
Beaumont, C., Jamieson, R.A., Nguyen, M.H., and Lee, B., Himalayan tectonics explained by extrusion of a low-viscosity crustal channel coupled to focused surface denudation, Nature, 2001, pp. 738–742.
Berdichevsky, M.N. and Dmitriev, V.I., Modeli i metody magnitotelluriki (Models and Methods of Magnetotellurics), Moscow: Nauchnyi Mir, 2009.
Berdichevskii, M.N., Sokolova, E.Yu., Varentsov, Iv.M., Rybin, A.K., Baglaenko, N.V., Batalev, V.Yu., Golubtsova, N.S., Matyukov, V.E., and Pushkarev, P.Yu., Geoelectric section of the central Tien Shan: analysis of magnetotelluric and magnetovariational responses along the Naryn geotraverse, Izv., Phys. Solid Earth, 2010, vol. 46, no. 8, pp. 679–697.
Bilham, R., Gaur, V.K., and Molnar, P., Himalayan seismic hazard, Science, 2001, vol. 293, pp. 1442–1444.
Bollinger, L., Avouac, J.P., Cattin, R., and Pandey, M.R., Stress buildup in the Himalaya, J. Geophys. Res., 2004, vol. 109, no. B11, B11405. http://dxdoiorg/10.1029/2003JB002911
Bollinger, L., Henry, P., and Avouac, J., Mountain building in the Nepal Himalaya: thermal and kinematic model, Earth Planet. Sci. Lett., 2006, vol. 244, nos. 1–2, pp. 58–71.
Caldwell, T.G., Bibby, H.M., and Brown, C., The magnetotelluric phase tensor, Geophys. J. Int., 2004, vol. 158, pp. 457–469.
Caldwell, W.B., Klemperer, S.L., Rai, S.S., and Lawrence, J.F., Partial melt in the upper-middle crust of the northwest Himalaya revealed by Rayleigh wave dispersion, Tectonophysics, 2009, vol. 477, pp. 58–65.
Caldwell, W.B., Klemperer, S.L., Lawrence, J.F., and Rai, S.S., Receiver function imaging in the western Himalaya, Proc. 25th Himalaya–Karakoram–Tibet Workshop: U.S. Geological Survey, Open-File Report 2010-1099, 2010.
Caldwell, W.B., Klemperer, S.L., Rai, S.S., Lawrence, J.F., and Ashish, P.A., Characterizing the Main Himalaya Thrust in the Garhwal Himalaya, India with receiver function CCP stacking, Earth Planet. Sci. Lett., 2013, vol. 367, pp. 15–27.
Cattin, R., Martelet, G., Henry, P., Avouac, J.P., Diament, M., and Shakya, T.R., Gravity anomalies, crustal structure and thermo-mechanical support of the Himalaya of Central Nepal, Geophys. J. Int., 2001, vol. 147, no. 2, pp. 381–392. doi 10.1046/j.0956-540x.2001.01541
Clark, M.K. and Royden, L.H., Topographic ooze: building the eastern margin of Tibet by lower crustal flow, Geology, 2000, vol. 28, pp. 703–706.
Gupta, G., Gokarn, S.G., and Singh, B.P., Thickness of the Siwalik sediments in the Mohand-Ramnagar region using magnetotelluric studies, Phys. Earth Planet. Inter., 1994, vol. 83, pp. 217–224.
Gürer, A. and Bayrak, M., Relation between electrical resistivity and earthquake generation in the crust of West Anatolia, Turkey, Tectonophysics, 2007, vol. 445, pp. 49–65.
Hata, M., Oshiman, N., Yoshimura, R., Tanaka, Y., and Uyeshima, M., Three-dimensional electromagnetic imaging of upwelling fluids in the Kyushu subduction zone, Japan, J. Geophys. Res., Solid Earth, 2015, vol. 120. doi 10.1002/2014JB011336
Herman, F., Copeland, P., Avouac, J.-P., Bollinger, L., Maheo, G., Le Fort, P., Rai, S., Forster, D., Pecher, A., Stuwe, K., and Hemry, P., Exhumation, crustal deformation, and thermal structure of Nepal Himalaya derived from inversion of thermochronological and thermobarometric data and modeling of the topography, J. Geophys. Res., 2010, vol. 115, B06407. doi 10.1029/2008JB006126
Hochstein, M.P. and Regenauer-Liebr, K., Heat generation associated with collision of two plates: the Himalayan geothermal belt, J. Volcanol. Geotherm. Res., 1998, vol. 83, pp. 75–92.
Hyndman, R.D. and Shearer, P.M., Water in the lower continental crust: modelling magnetotelluric and seismic reflection results, Geophys. J. Int., 1989, vol. 98, pp. 343–365.
Israil, M., Tyagi, D.K., Gupta, P.K., and Sri Niwas, Magnetotelluric investigations for imaging electrical structure of Garhwal Himalayan corridor, Uttarakhand, India, J. Earth Syst. Sci., 2008, vol. 117, no. 3, pp. 189–200.
Ivanov, P.V. and Pushkarev, P.Yu., Possibilities of interpretation of the magnetotelluric data obtained on a single profile over 3D resistivity structures, Izv., Phys. Solid Earth, 2010, vol. 46, no. 9, pp. 727–734.
Kayal, J.R., Microearthquake Seismology and Seismotectonics of South Asia. New Delhi: Capital Publishing Company, 2008.
Khattri, K.N. and Tyagi, A.R., The transverse tectonic features in Himalaya, Tectonophysics, 1983, vol. 96, nos. 1/2, pp. 19–29.
Khattri, K.N., Great earthquakes, seismicity gaps and potential for earthquake disaster along the Himalaya plate boundary, Tectonophysics, 1987, vol. 138, pp. 79–92.
Khattri, K.N., Local seismicity investigations in the Garhwal–Kumaon Himalaya, Mem. Geol. Soc. India, 1992, vol. 23, pp. 45–66.
Kirbi, S.H., Rheology of the lithosphere, Rev. Geophys. Space Phys., 1983, vol. 21, no. 6, pp. 1458–1487.
Kohlstedt, D.L., Evans, B., and Mackwell, S.J., Strength of the lithosphere: constraints imposed by laboratory experiments, J. Geophys. Res., 1995, vol. 100, no. B9, pp. 17587–17602.
Kosarev, G.L., Oreshin, S.I., Vinnik, L.P., Kiselev, S.G., Dattatrayam, R.S., Suresh, G., and Baidya, P.R., Heterogeneous lithosphere and the underlying mantle of the Indian subcontinent, Tectonophysics, 2013, vol. 592, pp. 175–186.
Kurtz, R.D., De Laurier, J.M., and Gupta, J.C., A magnetotelluric sounding across Vancouver Island detects the subducting Juan de Fuca plate, Nature, 1986, no. 321, pp. 596–599.
Lemonnier, C., Marquis, G., Perrier, F., Avouac, J.P., Chitrakar, G., Kafle, B., Sapkota, S., Gautam, U., Tiwari, D., and Bano, M., Electrical structure of the Himalaya of Central Nepal: high conductivity around the midcrustal ramp along the MHT, Geophys. Res. Lett., 1999, vol. 26, pp. 3261–3264.
Li, S., Unsworth, M.J., Booker, J.R., Wenbo, W., Tan, H., and Jones, A.G., Partial melt or aqueous fluids in the Tibetan crust: constraints from INDEPTH magnetotelluric data, Geophys. J. Int., 2003, vol. 153, pp. 289–304.
Li, Zhiwei, Roecker, S., Li, Zhihai, Wei, B., Wang, H., Schelochkov, G., and Bragin, V., Tomographic image of the crust and upper mantle beneath the western Tien Shan from the MANAS broadband deployment: possible evidence for lithospheric delamination, Tectonophysics, 2009, vol. 477, pp. 49–57.
Lilley, F.E.M., Singh, B., Arora, B.R., Srivastava, B.J., Prasad, S.N., and Sloane, M.N., A magnetometer array study in Northwest India, Phys. Earth Planet. Inter., 1981, vol. 25, pp. 232–240.
Lyon-Caen, H. and Molnar, P., Gravity anomalies, flexure of the Indian plate, and the structure, support and evolution of the Himalaya and Ganga basin, Tectonics, 1985, vol. 4, no. 6, pp. 513–538.
Lyubushin, A.A., Arora, B.R., and Kumar Naresh, Investigation of seismicity in western Himalaya, Geophys. Res., 2010, vol. 11, no. 1, pp. 27–34.
Mahesh, P., Rai, S.S., Sivaram, K., Paul, A., Sarma, P.R., and Gaur, V.K., One-dimensional reference velocity model and precise location of earthquake hypocentres in Central Himalaya, Bull. Seism. Soc. Am., 2013, vol. 103. doi 10.1758/0120110328
Molnar, P. and Tapponnier, P., Cenozoic tectonics of Asia: effects of a continental collision, Science, 1975, vol. 189, pp. 419–426. doi 10.1126/science.189.4201.419
Molnar, P., A review of the seismicity and the rate of active underthrusting and deformation at the Himalaya, J. Himalayan Geol., 1990, vol. 1, no. 2, pp. 131–154.
Molnar, P., England, Ph., and Martinod, J., Mantle dynamics, uplift of the Tibetan Plateau, and the Indian Monsoon, Rev. Geophys., 1993, vol. 31, no. 4, pp. 357–396.
Monsalve, G., Sheehan, A., Schulte-Pelkum, V., Rajaure, S., Pandey, M.R., and Wu, F., Seismicity and one-dimensional velocity structure of the Himalayan collision zone: earthquakes in the crust and upper mantle, J. Geophys. Res., 2006, vol. 111, B10301. doi 1029/2005JB004062
Mukhopadhyay, S. and Sharma, J., Crustal scale detachment in the Himalayas: a reappraisal, Geophys. J. Int., 2010, vol. 183, pp. 850–860.
Nabelek, J. et al. (Hi-CLIMB Collab.), Underplating in the Himalaya–Tibet collision zone revealed by the Hi-CLIMB experiment, Science, 2009, vol. 325, pp. 1371–1374.
Nelson, K.D. et al., Partially molten middle crust beneath southern Tibet: synthesis of project INDEPTH results, Science, 1996, vol. 274, pp. 1684–1687.
Nesbitt, B., Electrical resistivities of crustal fluids, J. Geophys. Res., 1993, vol. 98, no. B3, pp. 4301–4310.
Ni, J. and Barazangi, M., Seismotectonics of the Himalayan collision zone: geometry of the underthrusting Indian plate beneath the Himalaya, J. Geophys. Res., 1984, vol. 9, no. B2, pp. 1147–163.
Oreshin, S., Kiselev, S., Vinnik, L., Prakasam, K.S., Rai, S.S., Makeyeva, L., and Savvin, Y., Crust and mantle beneath western Himalaya, Ladakh and western Tibet from integrated seismic data, Earth Planet. Sci. Lett., 2008, vol. 271, nos. 1–4, pp. 75–87.
Pandey, M.R., Tandukar, R.P., and Avouac, J.P., Lavé, J., and Massot, J.P., Interseismic strain accumulation on the Himalayan crustal ramp (Nepal), Geophys. Rev. Lett., 1995, vol. 22, vol. 7, pp. 751–754.
Patro, P.K. and Harinarayana, T., Deep geoelectric structure of the Sikkim Himalayas (NE India) using magnetotelluric studies, Phys. Earth Planet. Inter., 2009, vol. 173, nos. 1–2, pp. 171–176.
Paul, J., Burgmann, R., and Gaur, V.K., The motion and active deformation of India, Geophys. Res. Lett., 2001, vol. 28, pp. 647–650.
Rajendran, C.P., Rajendran, K., Sanwal, J., and Sandiford, M., Archeological and historical database on the medieval earthquakes of the central Himalaya: ambiguities and inferences, Seismol. Res. Lett., 2013, vol. 84, no. 6, pp. 1098–1108. doi 10.1785/0220130077
Rebetsky, Yu.L. and Alekseev, R.S., The field of recent tectonic stresses in Central and South-Eastern Asia, Geodynam. Tectonophys., 2014, vol. 5, no. 1, pp. 257–290. doi 10.5800/GT201450127
Roy, S. and Rao, R.U.M., Heat flow in the Indian shield, J. Geophys. Res., 2000, vol. 105, no. B11, pp. 25587–25604.
Roy, P.N.S. and Mondal, S.K., Multifractal analysis of earthquakes in Kumaun Himalaya and its surrounding region, J. Earth Syst. Sci., 2012, vol. 121, no. 4, pp. 1033–1047.
Rybin, A.K., Glubinnoe stroenie i sovremennaya geodinamika Tsentral’nogo Tyan’-Shanya po rezul’tatam magnitotelluricheskikh issledovanii (The Deep Structure and Contemporary Geodynamics of Central Tien Shan from Magnetotelluric Studies), Moscow: Nauchnyi Mir, 2011.
Sachan, H.K., Sharma, R., Sahai, A., and Gururajan, N.S., Fluid events and exhumation history of the main central thrust zone Garhwal Himalaya (India), J. Asian Earth Sci., 2001, vol. 19, pp. 207–221.
Sass, P., Ritter, O., Ratschbacher, L., Tympel, J., Matiukov, V.E., Rybin, A.K., and Batalev, V.Yu., Resistivity structure underneath the Pamir and Southern Tian Shan, Geophys. J. Int., 2014, vol. 198, pp. 564–579. doi 10.1093/gji/ggu146
Schulte-Pelkum, V., Monsalve, G., Sheehan, A., Pande, M.R., Sapkota, S., Bilham, R., and Wu, F., Imaging the Indian subcontinent beneath the Himalaya, Nature, 2005, vol. 435, no. 7046, pp. 1222–1225.
Seeber, L., Armbruster, J., and Quittmeyer, R.C., Seismicity and continental subduction in the Himalayan arc, in Zagros-Hindukush-Himalaya Geodynamic Evolution, Gupta, H. and Delany, F., Eds., Washington: American Geophysical Union, 1981, vol. 3, pp. 215–242.
Sheng, J., Gaofeng, Ye, Wenbo, W., Ming, D., and Jian’en, J., Electrical structure and fault features of crust and upper mantle beneath the western margin of the Qinghai–Tibet Plateau, J. China Univ. Geosci., 2007, vol. 18, no. 4, pp. 326–333.
Smirnov, M.Yu., Magnetotelluric data processing with a robust statistical procedure having a high breakdown point, Geophys. J. Int., 2003, vol. 152, pp. 1–7.
Sokolova, E., Berdichevsky, M., Varentsov, I., Rybin, A., Baglaenko, N., Batalev, V., Golubtsova, N., Matukov, V., and Pushkarev, P., Advanced methods for joint MT/MV profile studies of active orogens: the experience from the Central Tien Shan, Protokoll uber das 22 Kolloquium “Elektromagnetische Tiefenforschung,” Decin, 2007, pp.132–141.
Sokolova, E.Yu. et al. (Naryn Collab.), Deep geoelectrical images of distant and frontal effect zones of the India-Eurasia collision, Proc. Int. Seminar on Recent Advances in Geosciences, Dhanbad: ISM, 2011, pp. 305–308.
Sokolova, E., Israil, M., Golubtsova, N., Gupta, P., Pushkarev, P., Cherevatova, M., and Smirnov, M., Contribution of crustal conductivity data on Garhwal Himalaya to the understanding of regional seismogenic and geodynamic patterns. Abstract 1341 at the 22nd Electromagnetic Induction Workshop, Weimar, August 24–30, 2014.
Srivastava, P. and Mitra, G., Thrust geometries and deep structure of the outer and lesser Himalaya, Kumaon and Garhwal (India): implications for evolution of the Himalayan fold-and-thrust belt, Tectonics, 1994, vol. 13, no. 1, pp. 89–109.
Tapponnier, P., Peltzer, G., Le Dain, A., Armijo, R., and Cobbold, P., Propagating extrusion tectonics of Asia, new insights from simple experiments with plasticine, Geology, 1982, vol. 10, pp. 611–616.
Tullis, J., Yund, R., and Farver, J., Deformation-enhanced fluid distribution in feldspar aggregates and implication for ductile shear zones, Geology, 1996, vol. 24, no. 1, pp. 63–66.
Unsworth, M.J. et al. (INDEPTH-MT Collab.), Crustal rheology of the Himalaya and Southern Tibet inferred from magnetotelluric data, Nature, 2005, vol. 438, pp. 78–81.
Valdiya, K.S., Geology of Kumaun Lesser Himalaya, Dehradun: Wadia Insitute of Himalayan Geology, 1980.
Vanyan, L.L., Berdichevsky, M.N., Pushkarev, P.Yu., and Romanyuk, P.V., A geoelektric model of the Cascadia subduction zone, Izv., Phys. Solid Earth, 2002, vol. 38, no. 10, pp. 816–845.
Varentsov, I.M. et al. (BEAR Collab.), System of electromagnetic field transfer operators for the BEAR array of simultaneous soundings: methods and results, Izv., Phys. Solid Earth, 2003, vol. 39, no. 2, pp. 118–148.
Varentsov, Iv.M. et al. (EMTESZ Collab.), The magnetic control approach for the reliable estimation of transfer functions in the EMTESZ–Pomerania project, Publ. Inst. Geophys. Pol. Acad. Sci, 2005, vol. C-95(386), pp. 68–79.
Varentsov, Iv.M., Joint robust inversion of magnetotelluric and magnetovariational data, in Electromagnetic Sounding of the Earth’s Interior, Ser. Methods in Geochemistry and Geophysics, vol. 40, Spichak, V., Ed., Amsterdam: Elsevier, 2007, pp. 189–222.
Varentsov, I.M., Pragmatic 2D inversion of the simultaneous arrays of the MT/MV responses, Materialy V Vserossiiskoi shkoly-seminara im. Berdichevskogo M.N., Van’yana L.L. po EMzondirovaniyam Zemli (Proc. 5th Berdichevsky and Vanyan All-Russian Workshop on Electromagnetic Soundings of the Earth), vol. 2, St.-Petersburg, 2011, pp. 17–21.
Vinnik, L.P., Aleshin, I.M., Kaban, M.K., Kiselev, S.G., Kosarev, G.L., Oreshin, S.I., and Reigber, Ch., Crust and mantle of the Tien Shan from data of the receiver function tomography, Izv., Phys. Solid Earth, 2006, vol. 42, no. 8, pp. 639–651.
Wang, Z. and Zhao, D., Seismic evidence for the influence of fluids on the 2005 west off Fukuoka prefecture earthquake in southwest Japan, Phys. Earth Planet. Inter, 2006, vol. 155, pp. 313–324.
Wason, H.R., Kumar, J., and Walia, S.K., Local seismicity of the Garhal Himalaya subsequent to the Uttarakashi earthquake of October 20, 1991, Gondawana Res. Group Mem., 1999, no. 6, pp. 335–340.
Wei, W., Zhang, L., Ye, G., Jin, S., Jing, J., Dong, D., Xie, C., Yin, Y., Wang, G., and Guo, Z., Three-dimensional electrical structure of the crust and upper mantle of the Tibetan Plateau—preliminary results from SinoProbe Magnetotelluric Array Data, Proc. 12th China Int. Geo-EM Workshop, Changsha, China, 2015, p. 346.
Yin, A., Cenozoic tectonic evolution of the Himalayan orogen as constrained by along-strike variation of structural geometry, exhumation history, and foreland sedimentation, Earth. Sci. Rev., 2006, vol. 76, nos. 1–2, pp. 1–131.
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Original Russian Text © E.Yu. Sokolova, M. Israil, P. Gupta, A.V. Koshurnikov, M.Yu. Smirnov, M.V. Cherevatova, 2016, published in Fizika Zemli, 2016, No. 2, pp. 127–147.
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Sokolova, E.Y., Israil, M., Gupta, P. et al. Crustal electrical conductivity of the Indian continental subduction zone: New data from the profile in the Garhwal Himalaya. Izv., Phys. Solid Earth 52, 271–290 (2016). https://doi.org/10.1134/S1069351316020130
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DOI: https://doi.org/10.1134/S1069351316020130