Petrogenesis of the 1.85 Ga Sonakhan mafic dyke swarm, Bastar Craton, India

Shellnutt, J. Gregory; Hari, K.R.; Liao, Alice C.Y.; Denyszyn, Steven W.; Vishwakarma, Neeraj; Deshmukh, S. D.

doi:10.1016/j.lithos.2019.03.015

Cited by 31 publications

(14 citation statements)

References 54 publications

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“…~1.85-1.86 Ga Dharmapuri swarm is now recognized (cf. Shellnutt et al, 2019;Samal et al, 2019b), which could be potentially a part of the previously recognized ca. 1.88-1.89 Ga Hampi swarm.…”

Section: Geochronologymentioning

confidence: 94%

“…A number of recent publications report geochronological data, mostly precisely dated, particularly using the U-Pb methods, of distinct magmatic events of the Indian Shield (Kumar et al, 2017;Samom et al, 2018;Shellnutt et al, 2018Shellnutt et al, , 2019Nagaraju et al, 2018a,b;Srivastava et al, 2019b;Söderlund et al, 2019;Liao et al, 2019) and these are well summarized in Samal et al (2019a,b). Söderlund et al (2019) have refined the LIP record of the Dharwar craton through ID-TIMS U-Pb baddeleyite ages of different generations of mafic dykes.…”

Section: Geochronologymentioning

confidence: 99%

“…1.88-1.89 Ga Hampi swarm. This is based on magmatic events recorded in the entire Dharwar craton, which includes NW-SE trending mafic dykes (Belica et al, 2014; as described in Shellnutt et al, 2019) and felsic tuffs from the upper part of the Tadpatri formation of the Cuddapah basin (Sheppard et al, 2017).…”

Section: Geochronologymentioning

confidence: 99%

“…In recent years, the record of Paleoproterzoic mafic dyke swarms has also expanded in the Bastar craton (Shellnutt et al, 2018(Shellnutt et al, , 2019Liao et al, 2019). Shellnutt et al (2018) obtained a 207 Pb/ 206 Pb age of 1882.4±1.5 Ma on a NW trending tholeiitic dyke in the Bhanupratappur region and linked it with the Bastanar swarm of the Bastar craton and the Hampi swarm of the Dharwar craton (cf.…”

Section: Geochronologymentioning

confidence: 99%

“…Another dyke from the same area, i.e. near Bhanupratapppur, yields an older age (Liao et al, 2019); they obtained a 207 Pb/ 206 Pb age of 2365.6±0.9 Ma on a boninitic dyke that is now termed the Bhanupratappur swarm (Samal et al, 2019b). Further, the chemical and temporal similarities between the Bhanupratappur swarm of the Bastar craton and the ca.…”

Section: Geochronologymentioning

confidence: 99%

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Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Srivastava¹,

Samal²,

Ernst³

et al. 2020

PINSA

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This report highlights investigations since 2016 on the Large Igneous Provinces (LIPs), particularly based on their mafic dyke swarms (MDSs) and continental flood basalts (CFBs), from the Indian Shield. Recent research, particularly geochemistry, geochronology and paleomagnetism, allow identification and characterization of distinct generations of LIPs in space and time in the Indian Shield. This could be the basis for critical new tests of paleogeographic reconstructions of supercontinents and paleocontinents of the Earth's history and the position of India in different ancient supercontinent/supercratons. The high-quality data generated in recent years also helped significantly to understand the nature, composition and evolution of the sub-continental lithospheric mantle beneath the Indian Shield, which aims at resolving important geological aspects, such as the role of plume tectonics, ancient subduction events, extent of the LIPs paleo-supercontinent reconstructions, etc., and has received considerable national and international attention.

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Section: Geochronologymentioning

confidence: 94%

Section: Geochronologymentioning

confidence: 99%

Section: Geochronologymentioning

confidence: 99%

Section: Geochronologymentioning

confidence: 99%

Section: Geochronologymentioning

confidence: 99%

See 3 more Smart Citations

Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Srivastava¹,

Samal²,

Ernst³

et al. 2020

PINSA

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Platinum‐group element and Au geochemistry of an ultramafic intrusion from the Sonakhan greenstone belt, Bastar craton, Central India: Tectono‐magmatic implications

et al. 2021

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The Sonakhan greenstone belt (SGB), located in the north‐eastern Bastar craton of the Indian shield, comprises mafic‐ultramafic and volcanic‐intrusive sequences in the lower stratigraphic units. We investigate the Platinum‐group element (PGE) relations of Boradih intrusion of the SGB to evaluate its tectono‐magmatic evolution. The chondrite‐normalized PGE patterns of boninitic cumulate rocks exhibit higher abundance of Palladium group PGEs (∑PPGE = 292–496 ppb) relative to the Iridium group PGEs (∑IPGE = 32–52 ppb) along with variable Au concentrations (51.34–718.05 ppb). The PGE concentrations are attributed to a boninitic parental melt, where the IPGEs in the source possibly partitioned into a monosulphide solid solution. The Cu (22–80 ppm), elevated Pt (22–238 ppb), and Pd (31–377 ppb) concentrations indicate Pt and Pd have partitioned into a semi‐metal rich melt during the later stages of crystallization. The geochemical characteristics of the basalts and ultramafic cumulates of the SGB indicate a supra‐subduction zone tectonic setting for its formation. Similar geochemical and litho‐tectonic correlations are also noticed between the SGB of Bastar craton and greenstone belts of the Eastern Dharwar craton of south India. The SGB (V/Yb =146 ± 25) and greenstone belts of Eastern Dharwar craton (V/Yb = 134 ± 52) record similar oxidation conditions of Phanerozoic subduction zones. Accordingly, we propose magmatic as well as tectonic correlations are possible for the Archean‐Palaeoproterozoic Bastar and Eastern Dharwar cratons.

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Proterozoic mafic dyke swarms of Bundelkhand Craton, North India: A connection to Columbia supercontinent

Raju,

Bodas,

Anshu

et al. 2024

Geological Journal

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The present paper addresses petrography, geochemistry and Ar‐Ar geochronology of a significant number of mafic dykes from the Paleo‐ to Neoarchean Bundelkhand Craton in central India. The majority of the dykes are NW‐SE oriented (with a few NE‐SW and ENE‐WSW) with tholeiitic, sub‐alkaline and basalt to basaltic andesite composition. The trace element geochemistry of these dykes indicates an island arc setting during emplacement. The Ar‐Ar mineral dating (plagioclase) of three representative dykes reveals an emplacement age between 1.53 and 1.46 Ga. This finding and earlier reports (2.1–1.73 Ga) point to sustained mafic magmatism throughout the Bundelkhand Craton in a preferred structural orientation between 2.1 and 1.46 Ga. Mafic magmatism was episodic and can be linked to the perpetual subduction accretion processes between the central Indian Archean continents during the development of the Columbia supercontinent. The mafic dykes were emplaced at 45° to the maximum compression direction (E‐W), that is, along the line of no finite longitudinal strain. This time equivalent widespread NW‐SE and NE‐SW trending mafic dyke system is also relatable along the adjacent continents (Singhbhum, Bastar) and thus opened up a new paradigm for the dyke's emplacement across the Indian cratons.

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Petrogenesis of the 1.85 Ga Sonakhan mafic dyke swarm, Bastar Craton, India

Cited by 31 publications

References 54 publications

Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Platinum‐group element and Au geochemistry of an ultramafic intrusion from the Sonakhan greenstone belt, Bastar craton, Central India: Tectono‐magmatic implications

Proterozoic mafic dyke swarms of Bundelkhand Craton, North India: A connection to Columbia supercontinent

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Petrogenesis of the 1.85 Ga Sonakhan mafic dyke swarm, Bastar Craton, India

Cited by 31 publications

References 54 publications

Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Spatial and Temporal Distribution of Large Igneous Provinces in the Indian Shield – Highlights of Recent Investigations

Platinum‐group element and Au geochemistry of an ultramafic intrusion from the Sonakhan greenstone belt, Bastar craton, Central India: Tectono‐magmatic implications

Proterozoic mafic dyke swarms of Bundelkhand Craton, North India: A connection to Columbia supercontinent

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Petrogenesis of the 1.85 Ga Sonakhan mafic dyke swarm, Bastar Craton, India