Department of Earth and Environmental Sciences

Our team delves into the nexus between granitic magmatism and metal enrichment in Earth’s crust. Our inquiry spans various stages in the ‘life cycle’ of metalliferous granites ranging from melt generation, through its geochemical evolution, till up to the terminal stage of granite crystallization involving exsolution of fluids. We look to uncover the vital roles each of these stages play in driving the enrichment of metals within the Earth’s crust. Driven by patterns between granite variants and ‘metal-package’ in associated ore systems, we attempt to shed light on the genetic factors and processes behind these associations. A key aspect of our research includes fluid inclusions – millions of years of old microscopic capsules of hydrothermal fluids entrapped in minerals. Through fluid inclusion studies we extract clues about past fluid activities in various crustal environments ranging up to lower crustal depths. Our recent and ongoing studies entails working out the auriferous potential of late Archean granites, and decoding the anatectic factors, fluid-rock reactions and fluid evolution liable to rare-metal fertility of granites and subsequent ore enrichment.

Principal Investigator

Sourabh Bhattacharya
Assistant Professor

Name	Role	Profile Photo
Jitendra Kumar Roy	Senior Research Fellow
Siddhartha Kesharwani	Junior Research Fellow
Aditya Naik	Postdoctoral Fellow
Priyanshu	MS Thesis
Rajnish Jatt	MS Thesis

NIL

Roy, Jitendra & Bhattacharya S. (2022). Records of fluid-rock interactions in the Degana tungsten deposit, India: inferences from mineral paragenesis, whole-rock and mineral chemistry, and fluid inclusions. Ore Geology Reviews, 143 (in press).
Paul, P. P., Chakraborty, P. P., Shiraishi, F., Das, K., Kamei, A., & Bhattacharya, S. (2020). Clue on ocean redox condition from trace element and rare earth element (REE) composition of iron formation and carbonate rocks from the late Paleoproterozoic Morar Formation, Gwalior Group, central India. Journal of Mineralogical and Petrological Sciences, 115(2), 175-191.
Pandit, D., Bhattacharya, S., & Panigrahi, M. K. (2020). Dissecting through the metallogenic potentials of Precambrian granitoids: case studies from the Bastar and Eastern Dharwar Cratons, India. Geological Society, London, Special Publications, 489(1), 157-188.
Kesarwani, M., Sarangi, S., Srinivasan, R., George, B. G., Singh, S. K., Bhattacharya, S., & Vasudev, V. N. (2019). Origin of granodiorite hosted Neoarchaean orogenic gold ore deposits: Stable isotopic and geochemical constraints with example from the Dharwar craton, southern India. Ore Geology Reviews, 107, 754-779.
Bhattacharya, S., & Panigrahi, M. K. (2017). Volatiles associated with granitoid intrusives around orogenic gold deposits in Ramagiri and Penakacherla Regions of Eastern Dharwar Craton, south India. Journal of the Geological Society of India, 90(5), 569-576.
Swain, S. K., Sarangi, S., Srinivasan, R., Sarkar, A., Bhattacharya, S., Patel, S. C., … & Sawkar, R. H. (2015). Isotope (C and O) composition of auriferous quartz carbonate veins, central lode system, Gadag Gold Field, Dharwar Craton, India: Implications to source of ore fluids. Ore Geology Reviews, 70, 305-320.
Bhattacharya, S., & Panigrahi, M. K. (2015). Source of ore fluid in lode gold deposits of Eastern Dharwar Craton: an intricate issue. Journal of the Indian Institute of Science, 95(2), 173-186.
Bhattacharya, S., Panigrahi, M. K., Sachan, H. K., & Kharya, A. (2014). Oxygen isotope ratio of quartz veins from the auriferous Ramagiri–Penakacherla schist belt and surrounding granitoids in the Eastern Dharwar craton: a case for a possible link between gold mineralization and granite magmatism. Ore Geology Reviews, 63, 201-208.
Bhattacharya, S., Panigrahi, M. K., & Jayananda, M. (2014). Mineral thermobarometry and fluid inclusion studies on the Closepet granite, Eastern Dharwar Craton, south India: Implications to emplacement and evolution of late-stage fluid. Journal of Asian Earth Sciences, 91, 1-18.
Bhattacharya, S., & Panigrahi, M. K. (2011). Heterogeneity in fluid characteristics in the Ramagiri–Penakacherla sector of the Eastern Dharwar Craton: implications to gold metallogeny. Russian Geology and Geophysics, 52(11), 1436-1447.
Sant, D. A., Wadhawan, S. K., Ganjoo, R. K., Basavaiah, N., Sukumaran, P., & Bhattacharya, S. (2011). Morphostratigraphy and palaeoclimate appraisal of the Leh valley, Ladakh Himalayas, India. Journal of the Geological Society of India, 77(6), 499-510.
Sant, D. A., Wadhawan, S. K., Ganjoo, R. K., Basavaiah, N., Sukumaran, P., & Bhattacharya, S. (2011). Linkage of paraglacial processes from last glacial to recent inferred from Spituk sequence, Leh valley, Ladakh Himalaya. Journal of the Geological Society of India, 78(2), 147.