Evolution of granulite enclaves and associated gneisses from Purulia, Chhotanagpur Granite Gneiss Complex, India: Evidence for 990–940Ma tectonothermal event(s) at the eastern India cratonic fringe zone

Karmakar, Shreya; Bose, Sankar; Sarbadhikari, A. Basu; Das, Kaushik

doi:10.1016/j.jseaes.2010.12.006

Cited by 70 publications

(61 citation statements)

References 75 publications

(96 reference statements)

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“…It is bound to the south by the South Purulia Shear Zone, to the north by Quaternary Indo‐Gangetic alluvium, and to the east by the Rajmahal Traps and the Bengal Basin. The gneiss complex consists of a basement of unknown age (possibly >1,750 Ma) dominated by felsic gneisses and migmatite with enclaves of pelitic and calcsilicate supracrustal rocks and mafic granulites (Dey et al., ; Karmakar et al., ; Maji et al., ; Rekha et al., ; Sanyal & Sengupta, ; Sanyal et al., ). Metapelitic and granulitic enclaves from the southern and central parts of the gneiss complex yield P–T estimates of 4 kbar, 600°C (Mishra et al., ) and 4–6 kbar, 750–850°C respectively (Bhattacharya & Mukherjee, ; Maji et al., ; Manna & Sen, ; Sen & Bhattacharya, ).…”

Section: Regional Geological Settingmentioning

confidence: 99%

“…922 Ma. The closure of the rift basin due to compressional tectonics during continent–continent collision between 900 and 780 Ma formed the regional S 3 fabric at amphibolite facies condition (Chatterjee et al., ; Karmakar et al., ; Maji et al., ; Mukherjee et al., ; Sanyal & Sengupta, ; Sanyal et al., ).…”

Section: Regional Geological Settingmentioning

confidence: 99%

“…The northernmost shear zone marks the northern boundary of the CGC, whereas the intermediate thrust zone, known as South Purulia Shear Zone separates the CGC from the North Singhbhum Mobile Belt and the GSB. The CGC comprises felsic gneisses and migmatites with enclaves of pelitic and calcsilicate supracrustal rocks and mafic granulites, intruded by porphyritic granite, anorthosite, charno‐enderbite, nepheline syenite, alkali syenite, and mafic dykes (Dey, Topno, Liu, & Zong, ; Karmakar, Bose, Sarbadhikari, & Das, ; Maji et al., ; Rekha et al., ; Sanyal & Sengupta, ; Sanyal, Sengupta, & Goswami, ). The terrane has a polychronous evolutionary history involving granitic and charno‐enderbitic magmatism at 1.70–1.64 Ga and c .…”

Section: Introductionmentioning

confidence: 99%

“…1.65 and c . 1.0 Ga (Chatterjee, Crowley, & Ghose, ; Chatterjee & Ghose, ; Dey et al., ; Karmakar et al., ; Maji et al., ; Mukherjee et al., ; Rekha et al., ; Sanyal & Sengupta, ; Sanyal et al., ), anorthosite emplacement at c . 1.55 Ga (Chatterjee et al., ), nepheline syenite intrusion at c .…”

Section: Introductionmentioning

confidence: 99%

“…1.55 Ga (Chatterjee et al., ), nepheline syenite intrusion at c . 0.92 Ga, and amphibolite facies metamorphism/deformation between 900 and 780 Ma (Chatterjee, Banerjee, Bhattacharya, & Maji, ; Karmakar et al., ; Maji et al., ; Mukherjee et al., ; Sanyal & Sengupta, ; Sanyal et al., ). The North Singhbhum Mobile Belt is dominated by a volcanosedimentary succession of interlayered quartzite, schist, and phyllite intercalated with ultramafic, mafic, and felsic volcanic and plutonic rocks.…”

Section: Introductionmentioning

confidence: 99%

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The geological evolution of the Gangpur Schist Belt, eastern India: Constraints on the formation of the Greater Indian Landmass in the Proterozoic

Chakraborty

Upadhyay

Ranjan

et al. 2018

Journal Metamorphic Geology

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The Central Indian Tectonic Zone (CITZ) is a Proterozoic suture along which the Northern and Southern Indian Blocks are inferred to have amalgamated forming the Greater Indian Landmass. In this study, we use the metamorphic and geochronological evolution of the Gangpur Schist Belt (GSB) and neighbouring crustal units to constrain crustal accretion processes associated with the amalgamation of the Northern and Southern Indian Blocks. The GSB sandwiched between the Bonai Granite pluton of the Singhbhum craton and granite gneisses of the Chhotanagpur Gneiss Complex (CGC) links the CITZ and the North Singhbhum Mobile Belt. New zircon age data constrain the emplacement of the Bonai Granite at 3,370 ± 10 Ma, while the magmatic protoliths of the Chhotanagpur gneisses were emplaced at c. 1.65 Ga. The sediments in the southern part of the Gangpur basin were derived from the Singhbhum craton, whereas those in the northern part were derived dominantly from the CGC. Sedimentation is estimated to have taken place between c. 1.65 and c. 1.45 Ga. The Upper Bonai/Darjing Group rocks of the basin underwent major metamorphic episodes at c. 1.56 and c. 1.45 Ga, while the Gangpur Group of rocks were metamorphosed at c. 1.45 and c. 0.97 Ga. Based on thermobarometric studies and zircon–monazite geochronology, we infer that the geological history of the GSB is similar to that of the North Singhbhum Mobile Belt with the Upper Bonai/Darjing and the Gangpur Groups being the westward extensions of the southern and northern domains of the North Singhbhum Mobile Belt respectively. We propose a three‐stage model of crustal accretion across the Singhbhum craton—GSB/North Singhbhum Mobile Belt—CGC contact. The magmatic protoliths of the Chhotanagpur Gneisses were emplaced at c. 1.65 Ga in an arc setting. The earliest accretion event at c. 1.56 Ga involved northward subduction and amalgamation of the Upper Bonai Group with the Singhbhum craton followed by accretion of the Gangpur Group with the Singhbhum craton–Upper Bonai Group composite at c. 1.45 Ga. Finally, continent–continent collision at c. 0.96 Ga led to the accretion of the CGC with the Singhbhum craton–Upper Bonai Group–Gangpur Group crustal units, synchronous with emplacement of pegmatitic granites. The geological events recorded in the GSB and other units of the CITZ only partially overlap with those in the Trans North China Orogen and the Capricorn Orogen of Western Australia, indicating that these suture zones are not correlatable.

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Section: Regional Geological Settingmentioning

confidence: 99%

Section: Regional Geological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The geological evolution of the Gangpur Schist Belt, eastern India: Constraints on the formation of the Greater Indian Landmass in the Proterozoic

Chakraborty

Upadhyay

Ranjan

et al. 2018

Journal Metamorphic Geology

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The current status of orogenesis in the Central Indian Tectonic Zone: A view from its Southern Margin

Bhowmik

2019

Geological Journal

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The Central Indian Tectonic Zone, because of its critical position in the tectonic framework of East Gondwanaland, holds insights into our understanding of the assembly and dispersal of Columbia and Rodinia supercontinents through the growth of the Greater Indian Landmass. The tectonic zone, which is now a collage of different supracrustal and granulite‐gneiss belts, bears testimony to a multistage orogenic evolution from Late Palaeoproterozoic to Early Neoproterozoic time. In this contribution, the current status of orogenic evolution in the Central Indian Tectonic Zone has been reviewed using petrological and geochronological constraints from the Sausar Mobile Belt, its southernmost constituent. It reveals a three‐stage evolution leading to the growth of the Greater Indian Landmass: (a) c. 1.6–1.5‐Ga accretionary orogenesis produced the first nucleus of Greater India through the assembly of arc, back arc, and continental margins; (b) a phase of Middle Proterzoic extension led to the disintegration of the Proto‐Greater India; and (c) classical Himalayan‐style continental collision between 1.06 and 0.93 Ga finally stitched the North and South India blocks to produce the final configuration of the Greater Indian Landmass. It is argued that the Late Palaeoproterozoic to Early Mesoproterozoic orogenesis in India and former Gondwanaland and Laurentian fragments is a globally significant amalgamation event separate from the Columbia Supercontinent assembly.

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Petrology and geochronology of a suite of pelitic granulites from parts of the Chotanagpur Granite Gneiss Complex, eastern India: Evidence for Stenian‐Tonian reworking of a late Paleoproterozoic crust

et al. 2019

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The north‐eastern part of the Chotanagpur Granite Gneiss Complex (CGGC) in the East Indian shield contains enclaves of migmatitic pelitic granulites (PG) within felsic orthogneiss (FOG). Field observations, petrology and geochronology (LA–MC–ICP–MS U–Pb dating of zircon and EPMA Th–U–total‐Pb dating of monazite) of the PG suggest two distinct metamorphic events. The earliest event M1, which is characterized by high‐temperature (>850°C) granulite facies metamorphism, occurred in the timespan of ~1680–1580 Ma. Extensive dehydration melting of biotite + sillimanite + quartz‐rich protoliths led to stabilization of the restitic assemblage (garnet + alkali‐feldspar + quartz + sillimanite + ferrian‐ilmenite) together with large volumes of felsic melts (leucosomes). Collisional tectonics followed by delamination and asthenospheric upwelling could have triggered the M1 event. Subsequently, at ~1470–1400 Ma, the igneous protolith of the host FOG intruded and hydrated the PG. Thereafter, a second metamorphic event, M2, accompanied by compressional structures, affected both the rock types. A clockwise P–T path that culminated at ≥10 kbar ~760–850°C and is followed by a steeply decompressive retrograde path characterizes this event. The P–T path and the inferred geothermal gradient (<27°C/km) are compatible with a continent–continent collisional setting. Geochronological findings suggest a protracted orogeny for the M2 event with its major pulse during ~970–950 Ma. When combined with the published information, this study supports the view that a large (if not the entire) portion of the Indian shield and the granulite terranes of east Antarctica share similar tectonothermal events that led to the formation of two supercontinents, Columbia and Rodinia.

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Evolution of granulite enclaves and associated gneisses from Purulia, Chhotanagpur Granite Gneiss Complex, India: Evidence for 990–940Ma tectonothermal event(s) at the eastern India cratonic fringe zone

Cited by 70 publications

References 75 publications

The geological evolution of the Gangpur Schist Belt, eastern India: Constraints on the formation of the Greater Indian Landmass in the Proterozoic

The geological evolution of the Gangpur Schist Belt, eastern India: Constraints on the formation of the Greater Indian Landmass in the Proterozoic

The current status of orogenesis in the Central Indian Tectonic Zone: A view from its Southern Margin

Petrology and geochronology of a suite of pelitic granulites from parts of the Chotanagpur Granite Gneiss Complex, eastern India: Evidence for Stenian‐Tonian reworking of a late Paleoproterozoic crust

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