Abstract
Extensive geophysical investigations are ongoing to address the causative mechanisms, which could explain the sustained seismicity in the Koyna-Warna region of the Deccan Volcanic Province (DVP), western India. Towards this effort, several exploratory bore-holes ranging up to 1500 m in depth were drilled by CSIR-NGRI around the Koyna-Warna seismic zone for investigation of shallow crustal properties and long term monitoring of seismicity. The focus of this study is the examination of lithology from four bore-well-cores around the Warna area: from west to east, KBH05 (Phansavale), KBH09 (Khadi Kolvan), KBH10 (Udgiri) and KBH08 (Paneri). High-resolution lithologs of these bore-well-cores have been generated, which reveal sub-trappean heterogeneity, especially given the limited areal extent of about three hundred square kilometers enclosing them. In this contribution, an account of lithological characteristics is provided, which were not available in the literature prior to this study. The discovery of relict greenstone volcanic rocks concealed beneath the Deccan Volcanic Province is reported, from one of the bore-well-cores as well as a thin layer of sediments in another. Fossil imprinted ash beds of substantial thickness are observed in two of the well-cores. Intrusive sheets of aplite/granite within the gneisses, seen in one of the well-cores, provides compelling evidence of a reworked basement beneath the Deccan Volcanic Province. The heterogeneity reported here is consistent with patterns of selective locales of earthquake occurrences in the Koyna-Warna zone; definitive roles for reservoir triggered seismicity needs further examination.
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Arora K., Chadha, R.K., Srinu, Y., Selles, A., Srinagesh, D., Smirnov, V., Ponomarev, A. and Mikhailov, V.O. (2017) Lineament fabric from airborne LiDAR and its influence on triggered earthquakes in the Koyna-Warna region, Western India. Jour. Geol. Soc. India, v.90, pp.670–677.
Arora, K., Srinu, Y., Gopinadh, D., Chadha, R.K., Raza, H., Mikhailov, V., Ponomarev, A., Kiseleva, E. and Smirnov, V. (2018) Lineaments in Deccan Basalts: The Basement Connection in the Koyna-Warna RTS Region. Bull. Seismol. Soc. Amer., v.108(5), DOI: https://doi.org/10.1785/0120180011.
Beane, J.E., Turner, C.A., Hooper P.R., Subbarao, K.V. and Walsh, J.N. (1986) Stratigraphy, composition and form of the Deccan Basalts, Western Ghats, India. Bull. Volcanol., v.48, pp.61–83.
Bell, M.L. and Nur A. (1978) Strength changes due to reservoir-induced pore pressure and stresses and applications to lake Oroville; Jour. Geophys. Res., v.83, pp.4469–4482
Bhaskar Rao, Y.J., Srinivas, B., Vijaya Kumar, T., Khadke, N., Krishna, A.K., Babu, E.V.S.S.K. (2017) Evidence for Neoarchean basement for the Deccan volcanic flows around Koyna-Warna region, western India: Zircon U-Pb age and Hf-isotopic results. Jour. Geol. Soc. India, v.90, pp.752760.
Chadha, R.K. (1992) Geological contacts, thermal springs and earthquakes in Peninsular India. Tectonophysics, v.15, pp.367–374.
Dixit, M.M., Kumar, S., Catchings, R.D., Suman, K., Sarkar, D. and Sen, M.K. (2014) Seismicity, faulting, and structure of the Koyna - Warna seismic region, Western India from local earthquake tomography and hypocentre locations. Jour. Geophys. Res., v.119, pp.6372–6398.
Dubey, C.P. and Tiwari, V.M. (2018) Gravity anomalies and crustal thickness variations over the Western Ghats. Jour. Geol. Soc. India, v.92, pp.517–522.
Duraiswami, R.A., Gadpallu, P., Maskare, B., Purwant, A., Meena, P., Krishnamurthy, P. and Mahabaleshwar, B. (2017) Volcanology and lava flow morpho-types from the Koyna-Warna Region, Western Deccan Traps, India. Jour. Geol. Soc. India, v.90, pp.742–747.
Duraiswami, R.A., Gadpallu, P., Shaikh, T.N. and Cardin, N. (2014) Pahoehoe -aa transitions in the lava flows of the western Deccan Traps, India - implications for emplacement dynamics, flood basalt architecture and volcanic stratigraphy. Jour. Asian Earth Sci., v.84, pp.146–166.
Gopinadh, D., Satyavani, N., Arora, K., Srihari Rao, M., Srinivas, K.N.S.S.S., Srinu, Y, Sai Vijay Kumar, P. and Satyanarayana, H.V.S. (2019) Assessment of heterogeneities of the shallow crust from geophysical logging in the Koyna-Warna region, Deccan Volcanic Province, India. Phys. Earth Planet. Inter., v.296, 106311; DOI:https://doi.org/10.1016/j.pepi.2019.106311
Gahalaut, K. and Gahalaut, V.K. (2017) Sustained seismicity near Koyna-Warna Reservoir: A mish-mash of physical processes. Jour. Geol. Soc. India, v.90, pp.733–737.
Goswami, D., Akkiraju, V.V., Singh, S.K., Shalivahan and Roy, S. (2017) Rock strength and elastic properties of basement granitoids from Koyna Region, Deccan Volcanic Province, India. Jour. Geol. Soc. India, v.90, pp.783–787.
Gupta, H.K. (1992) Reservoir Induced Earthquakes, Elsevier Publications.
Gupta, H.K. (2017) Koyna, India, an ideal site for near field earthquake observations. Jour. Geol. Soc. India, v.90, pp.645–652.
Gupta, S., Kanna, N., Kumar, S. and Sivaram, K. (2018) Crustal thickness and composition variation along the Western Ghats of India through Teleseismic Receiver Function Analysis. Jour. Geol. Soc. India, v.92, pp.523–528.
Kale, V.S., Dole, G., Shandilya, P. and Pande, K. (2019) Stratigraphy and correlation in Deccan volcanic province, India: Quo vadis? Geol. Soc. Amer. Bull., doi:https://doi.org/10.1130/B35018.1
Mishra, S., Misra, S., Vyas, D., Nikalje, D., Warhade, A., Roy, S. (2017) A 1251 m-thick Deccan flood basalt pile recovered by scientific drilling in the Koyna region, western India. Jour. Geol. Soc. India, v.90, pp.788794.
Misra, S., Bartakke, V., Athavale, G., Akkiraju, A.V., Goswami, D. and Roy, S. (2017) Granite-gneiss basement below Deccan Traps in the Koyna region, western India: Outcome from scientific drilling. Jour. Geol. Soc. India, v.90, pp.776–782.
Mogi, K. (1962) Study of elastic shocks caused by the fracture of heterogeneous materials and its relations to earthquake phenomena. Bull. Earthquake Res. Instit., Tokyo University, v.40, pp.125–173.
Mugal V.V., Varsha, A.A., Malviya, V.P. (2016) Intertrappean beds of Deccan volcanic province, and its implications on K-T boundary in central India. Abstract, 35th International Geological Congress.
Pandey, A.P. and Chadha, R.K. (2003) Surface loading and triggered earthquakes in the Koyna-Warna region, western India. Phys. Earth Planet. Inter., v.139(3), pp.207–223.
Prasad, G.V.R. and Khajuria, C.K. (1995) Implications of the infra- and intertrappean biota from the Deccan, India, for the role of volcanism in Cretaceous-Tertiary boundary extinctions. Jour. Geol. Soc., v.152(2), pp.289–296.
Ramanathan, S. (1981) Some aspects of Deccan volcanism of the western Indian shelf and Cambay basin. Mem. Geol. Soc. India, No.3, pp.198–217.
Rao, N.P. and Shashidhar, D. (2016) Periodic variation of stress field in the Koyna-Warna reservoir triggered seismic zone inferred from focal mechanism studies. Tectonophysics, v.679; DOI: https://doi.org/10.1016/j.tecto.2016.04.036
Renne, P.R., Sprain, C.J., Richards, M.A., Self, S., Vanderkhuysen, L. and Pande, K. (2015) State shift in Deccan volcanism at the Cretaceous-Paleogene boundary, possibly induced by impact. Science, v.350, pp.76–78.
Roeloffs, E.A. (1998) Persistent water level changes in a well near Parkfield, California, due to local and distant earthquakes. Jour. Geophys. Res., v.103, pp.869–889
Rohilla, S., Purnachandra Rao, N., Gerstoft, P., Shashidhar, D. and Satyanarayana, H.V.S. (2015) Shear wave velocity structure of the Koyna-Warna region in Western India using ambient noise correlation and surface-wave dispersion. Bull. Seismol. Soc. Amer., v.105(1), DOI:https://doi.org/10.1785/0120140091
Sahasrabudhe, Y.S., Rane, V.V. and Deshmukh, S.S. (1971) Geology of the Koyna valley. In: Symposium on Koyna Earthquake, Indian Journal Power and River Valley Development, pp.47–54.
Sangode, S.J., Venkateshwarlu, M., Mahajan, R. and Randive, V. (2017) Magnetic Mineralogical Variability along Deccan Trap Basalt Borehole (KBH07), Koyna Deep Continental Drilling Program, Western Maharashtra, India. Jour. Geol. Soc. India, v.90, pp.769–775.
Simpson, D.W. (1976) Seismicity changes associated with reservoir loading. Engineering Geology, v. 10, pp. 123–150.
Sinha, D.K., Som, A. and Roy, S. (2017) The Subsurface Megascopic Characteristics of Basalt and Basement Rocks from Koyna-Warna Area of Maharashtra, India. Jour. Geol. Soc. India, v.90, pp.761–768.
Sinhya-Roy, S. (2018) A hybrid multistage model of evolution of the Western Ghats at the passive western continental margin of India. Jour. Geol. Soc. India, v.92, pp.533–541.
Sprain, C.J., Renne, P.R., Vanderkhuysen, L., Pande, K., Self, S. Tushar, M. (2019) The eruptive tempo of Deccan volcanism in relation to the Cretaceous-Paleogene boundary. Science, v.363, pp. 866–870.
Snow, D.T. (1972) Geodynamics of seismic reservoirs. Proc. Syrup. Percolation Fissured Rocks. Dtsch. Ges. Erd. Grundbau, Stuttgart, T2-J, pp.1–19.
Upadhyay, D., Koojiman, E., Singh, A. K., Mezger, K. and Berndt, J. (2015) The basement of the Deccan Traps and its Madagascar connection: Constraints from xenoliths. Jour. Geol., v.123(3), pp. 295–307.
West WD (1958) The petrography and petrogenesis of forty-eight flows of Deccan trap penetrated by borings in western India. Trans. Indian Nat. Inst. Sci., v.4(1), pp.1–56.
Acknowledgements
We are thankful to the Director, CSIR-NGRI for permission [NGRI/Lib/2020/Pub-12] to publish this work. The drilling and coring program was funded by the Ministry of Earth Science (MoES) research grant. We profusely thank Drs. N. Purnachandra Rao, and H.V. Satyanarayana under whose projects the work was initiated and carried out. We thankfully acknowledge Dr. V.V. Sesha Sai for petrographic studies. We appreciate D. Gopinadh and Y. Srinu for their assistance with preparation of figures. We are thankful to the anonymous reviewers for their critical and constructive reviews.
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Khanna, T.C., Arora, K., Raza, H. et al. Bore-hole Well-cores Provide Evidence for Crustal Heterogeneity Beneath the Koyna-Warna Reservoir Site, Deccan Volcanic Province, India. J Geol Soc India 96, 36–42 (2020). https://doi.org/10.1007/s12594-020-1502-4
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DOI: https://doi.org/10.1007/s12594-020-1502-4