Geochemistry of the Mafic Metavolcanic Rocks of Mauranipur-Babina Greenstone Belt, Bundelkhand Craton, Central India: Implication for Tectonic Settings During the Archaean

Raza, Ausaf; Mondal, M. E. A.

doi:10.1007/978-3-319-89698-4_22

Cited by 4 publications

(4 citation statements)

References 81 publications

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“…This finding would attest to the variable heterogeneous nature of the Pan-African mantle source. The increase of this ratio from oceanic basalts to subduction-related basalts is similar to that found for the Archean Fiskenaesset basalts (Polat et al, 2007) and the Mauranipur-Babina Greenstone Belt (Raza and Mondal, 2019). The composition of the mantle source may be modified by crustal contamination (Wilson, 1989).…”

Section: Magma Source Compositionssupporting

confidence: 78%

“…The Th/Nb ratio is considered a crucial factor in determining the influence of subduction on modifying the underlying mantle. Th is the least affected by hydrothermal fluids compared to other LILEs and so it might indicate mantle metasomatism (Lafleche et al, 1992); whereas Nb is immobile in fluids and is less abundant in sediment-derived melts (Raza and Mondal, 2019). The Th/Nb ratio of N-MORB is 0.05, while that of E-MORB is 0.08.…”

Section: Magma Source Compositionsmentioning

confidence: 96%

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On the Geochemistry of Amphibolite Enclaves in the Pan-African Gneisses of Wadi Feiran, Sw Sinai, Egypt, and Their Relation to Arc Magmatism

2019

Egyptian Journal of Geology

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Geochemistry of amphibolite enclaves from the Pan-African Wadi Feiran area, SW Sinai, is presented with the aim to assess the petrogenetic characteristics of their protliths. These enclaves are concordantly enclosed in biotite, hornblende and quartzofeldspathic gneisses and schists, that overlie partially migmatized granitic gneisses. They occur as variably sized, massive to highly foliated and often strongly stretched, lenses and boudins. The studied enclaves are of magmatic origin with precursors ranging from calc-alkaline andesites to tholeiitic basalts. Rare enclaves of high-Mg appinitic monzogabbro and monzodiorite are recorded in the biotite gneisses, indicating a primary magma that was generated along a subduction zone. The geochemical characters of the studied enclaves indicate that during the Pan-African, the Wadi Feiran area constituted a back-arc continental lithosphere environment that witnessed plumesubduction interaction.

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Section: Magma Source Compositionssupporting

confidence: 78%

Section: Magma Source Compositionsmentioning

confidence: 96%

On the Geochemistry of Amphibolite Enclaves in the Pan-African Gneisses of Wadi Feiran, Sw Sinai, Egypt, and Their Relation to Arc Magmatism

2019

Egyptian Journal of Geology

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“…The ICV values of some common minerals are as follows: pyroxene and amphibole (10–100), biotite (8), alkali feldspar (0.8–1), plagioclase (0.6) and muscovite (0.3; Yousefifard et al, 2012). Compositionally immature sandstones have ICV values of over one, include unrecycled sediments, and were deposited in a tectonically active setting (Raza & Mondal, 2018). In contrast, compositionally mature deposits have an ICV value of less than one and show passive sediment recycling (Ghosh & Sarkar, 2010; Perri et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

An integrated petrographical and geochemical study of the Tredian Formation in the Salt and Trans‐Indus Surghar ranges, North‐West Pakistan: Implications for palaeoclimate

Qureshi,

Rizwan,

Janjuhah

et al. 2023

The Depositional Record

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The Middle Triassic Tredian Formation is well exposed in the western region of the Salt Range. It is mostly composed of sandstone with minor alternations of shales and dolomite. This is the first integrated attempt using petrographical and geochemical features to reveal palaeoclimate during deposition of the Tredian Formation. This work sheds light on the petrographical and geochemical properties of the Tredian sandstone in order to date various layers and evaluate the palaeoclimate. The formation was sampled at two distinct stratigraphic layers for petrographic and geochemical analysis of major and trace elements. The sandstone of the Tredian Formation is sub‐feldspathic to feldspathic arenite with sub‐angular to rounded grains that are moderately to extensively sorted. The relative proportions of the quartz, feldspars and lithoclasts in the examined sandstone samples shows that the Tredian sediments originated from the interior of the craton during a transitional continental regime. Chemical index of alteration values of 59, chemical index of weathering values of 67, and plagioclase index of alteration values of 74.5 indicate a low to moderate degree of weathering in the Tredian sediment source region. Based on the silica content, SiO2/Al2O3 ratios (2.7–6.1; mean 4.1), and chemical maturity index, it is deduced that the Tredian Formation was deposited in chemically immature to sub‐mature and dry to semi‐arid conditions. Geochemical proxies indicate the acidic source of sediment and deposition on the passive margin of the Indian Plate. The trace element characteristics of the sediments, especially the Rb/Sr, Cu/Zn, Ni/Co, V/Cr and Sr/Ba ratios, indicate that the sediments originated from the first weathering cycle and support the notion that they were deposited in an oxidising continental environment. A semi‐arid to arid palaeoclimate predominated through the Middle Triassic at the north‐western passive continental margin of the Indian Plate in the south‐eastern Neo‐Tethys.

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“…Greenstone belts containing mafic-ultramafic and felsic volcanic rocks, banded iron formations (BIFs) and quartzites, which range in age from the Mesoarchean to the Neoarchean, occur within the granitoids (Singh & Slabunov 2016). The volcanic rock associations and their geochemical signatures have been interpreted to reflect a range of tectonic settings, including plume, arc and mid-oceanic ridge settings (Singh & Slabunov 2016;Raza & Mondal 2019).…”

Section: Indian Cratonsmentioning

confidence: 99%

Archean granitoids of India: windows into early Earth tectonics – an introduction

Dey

Moyen

2020

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Granitoids form the dominant component of Archean cratons. They are generated by partial melting of diverse crustal and mantle sources and subsequent differentiation of the primary magmas, and are formed through a variety of geodynamic processes. Granitoids, therefore, are important archives for early Earth lithospheric evolution. Peninsular India comprises five cratonic blocks bordered by mobile belts. The cratons that stabilized during the Paleoarchean–Mesoarchean (Singhbhum and Western Dharwar) recorded mostly diapirism or sagduction tectonics. Conversely, cratons that stabilized during the late Neoarchean (Eastern Dharwar, Bundelkhand, Bastar and Aravalli) show evidence consistent with terrane accretion–collision in a convergent setting. Thus, the Indian cratons provide testimony to a transition from a dominantly pre-plate tectonic regime in the Paleoarchean–Mesoarchean to a plate-tectonic-like regime in the late Neoarchean. Despite this diversity, all five cratons had a similar petrological evolution with a long period (250–850 myr) of episodic tonalite–trondhjemite–granodiorite (TTG) magmatism followed by a shorter period (30–100 myr) of granitoid diversification (sanukitoid, K-rich anatectic granite and A-type granite) with signatures of input from both mantle and crust. The contributions of this Special Publication cover diverse granitoid-related themes, highlighting the potential of Indian cratons in addressing global issues of Archean crustal evolution.

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Geochemistry of the Mafic Metavolcanic Rocks of Mauranipur-Babina Greenstone Belt, Bundelkhand Craton, Central India: Implication for Tectonic Settings During the Archaean

Cited by 4 publications

References 81 publications

On the Geochemistry of Amphibolite Enclaves in the Pan-African Gneisses of Wadi Feiran, Sw Sinai, Egypt, and Their Relation to Arc Magmatism

On the Geochemistry of Amphibolite Enclaves in the Pan-African Gneisses of Wadi Feiran, Sw Sinai, Egypt, and Their Relation to Arc Magmatism

An integrated petrographical and geochemical study of the Tredian Formation in the Salt and Trans‐Indus Surghar ranges, North‐West Pakistan: Implications for palaeoclimate

Archean granitoids of India: windows into early Earth tectonics – an introduction

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