Meso–Neoarchaean crustal evolution of the Bundelkhand Craton, Indian Shield: new data from greenstone belts

Evolution of Bundelkhand Craton

“…These geochemical data also suggest that both mafic magmatic enclaves and host granitoids are formed by the injection of hot mafic magma into a relatively cooler granitic magma chamber in a subduction setting (Ramiz and Mondal, 2017). Babina-Paswara (Bundelkhand Greenstone Belt;Pati, 1999;Malviya et al, 2006;Saha et al, 2011) and Rungaon-Girar greenstone belts are well exposed in BuC Saha et al, 2016;Slabunov and Singh, 2018). The lithology of these belts is mainly composed of amphibolites, banded iron formation, pillow basalts, komatiitic basalts, calc-silicate rocks, white schists, quartzites, metavolcanics, metapelites, mafic-ultramafics (Basu, 1986;Mondal et al, 2002;Malviya et al, 2006;Ram Mohan et al, 2012;Kaur et al, 2014;Kaur et al, 2016;Saha et al, 2016;Verma et al, 2016;Joshi et al, 2017;Slabunov et al, 2017;Singh et al, 2018Nasipuri et al, 2019).…”

“…Craton High-pressure metamorphism, felsic magmatism Mondal et al, 2002;Slabunov, 2014, 2015;Slabunov and Singh, 2018;Joshi et al, 2017; U-Pb zircon ages recorded from the TTG gneiss in the Sukwa-Dukwa dam area and near Panchwara Saha et al, 2011;Kaur et al, 2016) Pb-Pb zircon ages from Kuraicha and Mahoba gneisses; Pb-Pb zircon age from the metabasic enclave in Mahoba Gneiss U-Pb zircon age from Babina TTG gneiss Singh and Slabunov, 2013;Kaur et al, 2014Joshi et al, 2017;Nasipuri et al, 2019) U-Pb zircon, Pb-Pb zircon and whole rock Rb-Sr age from TTGs (Sarkar et al, 1995;Mondal et al, 2002;Singh and Slabunov, 2013;Kaur et al, 2014Kaur et al, , 2016Slabunov, 2014, 2015;Saha et al, 2011Saha et al, , 2016Verma et al, 2016;Joshi et al, 2017;Singh et al, 2019;Nasipuri et al, 2019) Not recorded Based on Nd isotopic values, the possible protolith and metamorphic ages of amphibolites (Malviya et al, 2005)…”

Geology of South and Southwest part of Uttar Pradesh and its Mineral Significance

“…The Bundelkhand granitoids display heterogeneity in texture and composition and are pegmatitic in some places (Dinkar, 2016;Dinkar et al, 2018). The detailed geology of central Bundelkhand greenstone complex is given by Singh and Slabunov (2015a) and Slabunov and Singh (2018), so we don t discuss here. The southern Bundelkhand greenstone complex exposures of the rocks belonging to Mehroni Group are very scantly and can be observed around Girar, Manpura and Rajaula areas in Mandawra block of Lalitpur (Prakash et al, 1975;Singh and Slabunov, 2016;Slabunov et al, 2017;Dinkar et al, 2018 and references therein).…”

“…Bhattacharya and Singh (2013) described the Proterozoic crustal scale shearing in the Bundelkhand massif with special reference to quartz reefs. Recently Singh and Slabunov (2015a, 2015b, 2016, Slabunov et al (2017), and Slabunov and Singh (2018) discussed the geology and geochronology of the supracrustal rocks of Bundelkhand Craton and first to establish two greenstone complex i.e., Central and Southern Bundelkhand. Further studies suggest that the entire area was subject to two major phases of sedimentary-volcanic process before regional granitisation during the Archean.…”

Geology, Geomorphology and Tectonics of India: Introduction

“…Main tectonic division of Indian Shield (modified afterRamakrishnan andVaidyanadhan, 2010 andSlabunov andSingh, 2018).…”