Geochemical and Nd Isotopic Studies of the Neoarchaean-Palaeoproterozoic Granitoids of the Aravalli Craton, NW India: Evidence for Heterogeneous Crustal Evolution Processes

Rahaman, Md. Sayad; Mondal, M. E. A.; Ahmad, Iftikhar; Bhutani, Rajneesh; Choudhary, Amol

doi:10.1007/978-3-319-89698-4_14

Cited by 6 publications

(12 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We believe that the Pur-Banera F I G U R E 1 1 (a) Plot of εNd t versus U-Pb ages for the Malola granite (this study) and coeval granitoids from other cratons. Data are shown for the Berach high-potassium granitoids (HKG) and Berach high-magnesium granitoids (HMG) in the Aravalli Craton (Rahaman et al, 2019), potassic granites (Pandey, Bhattacharya, Sastry, & Pandey, 2011), and sanukitoids (Singh et al, 2019) in the Bundelkhand Craton, the Closepet granite in the Dharwar Craton (Jayananda, Martin, Peucat, & Mahabaleswar, 1995), and potassic granites in the Congo Craton (Tchameni, Mezger, Nsifa, & Pouclet, 2000). Neodymium isotopic evolution curves for depleted mantle (DM) and Chondritic Uniform Reservoir (CHUR) are from DePaolo (1987).…”

Section: Tectonometamorphic Evolution Of the Malola Granitementioning

confidence: 99%

“…In both the Aravalli and the Bundelkhand cratons, Neoarchaean quartz diorites, hybrid granites, and sanukitoids formed by mixing between mafic melts derived from an enriched mantle (influenced by prior subduction) and anatectic melts of the crust (Kaur et al, 2016(Kaur et al, , 2019Singh et al, 2019). Whereas the Berach granitoids represent significant juvenile crust generation (Mondal & Raza, 2013;Rahaman et al, 2019), the geographically proximal Malola granite represents anatectic reworking of lower continental crust (cf. Verma, 1999), in the same long-lived subduction zone.…”

Section: Tectonometamorphic Evolution Of the Malola Granitementioning

confidence: 99%

“…The Malola granite lies ~50 km north of the nearest outcrop of the Neoarchaean (2.5 Ga) Berach granitoids (Mondal & Raza, 2013; Rahaman et al, 2019; Wiedenbeck et al, 1996; Figure 1b). The Berach granitoids have calc‐alkaline to K‐rich compositions, and include sanukitoids enriched in incompatible as well as compatible elements, based on which they are inferred to have been derived from partial melting of enriched continental lithospheric mantle (Mondal & Raza, 2013).…”

Section: Geological Background and Field Relationshipsmentioning

confidence: 99%

“…The Aravalli Craton of the northwestern Indian Shield exposes a well‐preserved Archaean basement in its central and southern parts, known as the Banded Gneissic Complex (BGC, Gupta, 1934; Heron, 1953). This basement has been affected by repeated deformation, metamorphism, and granitic magmatism for much of its geological history (e.g., Ahmad, Mondal, Bhutani, & Satyanarayanan, 2018; Ahmad, Mondal, & Satyanarayanan, 2019; Bhowmik, Bernhardt, & Dasgupta, 2010; Buick et al, 2010; D'Souza et al, 2019; Dey et al, 2019; Fareeduddin & Banerjee, 2020; Gopalan, Macdougall, Roy, & Murali, 1990; Kaur et al, 2019; Rahaman, Mondal, Ahmad, Bhutani, & Choudhary, 2019; Roy & Kröner, 1996; Roy, Kröner, Rathore, Laul, & Purohit, 2012; Wiedenbeck et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…The BGC includes many Neoarchaean granitoids, ranging in size from dykes and stocks to batholiths, and in composition from TTGs and sanukitoids to potassic granites (e.g., Dey et al, 2019; Kaur et al, 2019; Mondal & Raza, 2013; Rahaman et al, 2019; Wiedenbeck et al, 1996; Figure 1b). D'Souza et al (2019) identified a granite pluton, the Malola granite, forming the basement for the ca.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Neoarchaean crustal reworking in the Aravalli Craton: Petrogenesis and tectonometamorphic history of the Malola granite, Bhilwara area, northwestern India

D’Souza

Sheth

et al. 2020

Geological Journal

View full text Add to dashboard Cite

The Banded Gneissic Complex of the Aravalli Craton of northwestern India comprises Palaeo‐ to Neoarchaean (3.3–2.7 Ga) gneisses, including tonalite–trondhjemite–granodiorite (TTG) gneisses, intruded by Neoarchaean (2.6–2.5 Ga) TTGs, sanukitoids, and potassic granites. The latter include the Malola granite that crops out near Bhilwara and forms the basement for the Mesoproterozoic Pur‐Banera mineralized belt. The granite has experienced three deformation events, represented by an S1 foliation and superimposed open folds and dextral shears. Textural evidence and thermobarometry indicate that prograde metamorphism initially forming actinolite and subsequently diopside, and culminating in the upper amphibolite facies, was followed by retrograde metamorphism in the greenschist facies with fluid influx, forming zoisite. Zircon geochronology yields a crystallization age of 2,538 ± 11 Ma and indicates a prominent metamorphic overprint in the region at 1,307 ± 9 Ma. The Malola granite has low Sr–Nd isotopic ratios, enrichments in fluid‐mobile elements (Cs, Rb, Ba, Th, and Pb), and depletions in alteration‐resistant elements (Nb, Ta, and Ti). These characteristics combined with mineralogical evidence suggest that the granite was derived by anatexis of older crystalline crust (possibly granulitic lower crust) in the same subduction zone setting inferred previously for other Neoarchean granitoids in this region. Geochemical and Sr–Nd–Hf isotopic similarities between the Malola granite and Neoarchaean granitoids of the Aravalli, Bundelkhand, Bastar, Dharwar, and Congo cratons indicate a major role for anatectic crustal reworking in their genesis.

show abstract

Section: Tectonometamorphic Evolution Of the Malola Granitementioning

confidence: 99%

Section: Tectonometamorphic Evolution Of the Malola Granitementioning

confidence: 99%

Section: Geological Background and Field Relationshipsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Neoarchaean crustal reworking in the Aravalli Craton: Petrogenesis and tectonometamorphic history of the Malola granite, Bhilwara area, northwestern India

D’Souza

Sheth

et al. 2020

Geological Journal

View full text Add to dashboard Cite

show abstract

Rift‐related multistage evolution of the Mangalwar Complex, Aravalli Craton (NW India): Evidence from elemental and Sr–Nd isotopic features of Proterozoic amphibolites

et al. 2022

Self Cite

View full text Add to dashboard Cite

The Banded Gneissic Complex (BGC) of the Aravalli Craton (India) comprises Archean BGC‐I (3.3–2.5 Ga) and Proterozoic BGC‐II. The BGC‐II is a mosaic of amphibolite facies namely, (a) Mangalwar Gneissic Complex (MGC), (b) Mangalwar Metasedimentary Complex (MMC), and (c) granulite‐facies Sandmata Metamorphic Complex. Here we present field, petrography and geochemical study of the Proterozoic amphibolites from the MGC and MMC. Based on field and geochemical data, the amphibolites have been characterized into three types related to rift settings (G1, G2 and G3). The G1 type occurs as dykes in the MGC and bears ocean island basalt‐type rare earth element (REE) patterns along with negative Nb and Ti anomalies, negative to positive values of εNd(t) (−0.02 to +3.96) and slightly variable initial 87Sr/86Sr (ISr) ratios. They are derived from deep mantle sources and correspond to the pre‐rift magmatic phase. The G2 type occurs as isolated patches associated with chert and is characterized by light REE (LREE) depleted and almost flat heavy REE (HREE) patterns suggesting that they were emplaced in an oceanic setting and were derived from a shallower mantle bearing positive εNd(t) (+2.87 to +6.27) and ISr = 0.7002–0.7083. This phase corresponds to the opening of the Mangalwar sedimentary basin (MMC). The G3 type occurs intercalated with metasedimentary rocks of the MMC and marked by LREE‐enriched and HREE‐depleted to flat patterns that resemble Upper Continental Crust signature, their εNd(t) mostly negative values and variable ISr also corroborate this explanation. They are believed to be derived from heterogeneous sources and represent syn‐sedimentary volcanic phases. All these signatures indicate that the amphibolites distinctly represent three phases of magmatism that occurred during pre‐rift (1.72 Ga), opening of basin (1.62 Ga) and syn‐sedimentary volcanism (1.6–1.3 Ga) in the rift‐basin and they were formed during the Proterozoic. These rifting events might have been connected with the fragmentation of Columbia.

show abstract

Geochemistry and petrogenesis of the Paleoproterozoic ortho-gneisses and granitoids of the Banded Gneissic Complex, central Rajasthan, NW India: Implications for crustal reworking processes

Ahmad

Latheef²,

Mondal³

et al. 2022

Acta Geochim

View full text Add to dashboard Cite

Geochemical and Nd Isotopic Studies of the Neoarchaean-Palaeoproterozoic Granitoids of the Aravalli Craton, NW India: Evidence for Heterogeneous Crustal Evolution Processes

Cited by 6 publications

References 50 publications

Neoarchaean crustal reworking in the Aravalli Craton: Petrogenesis and tectonometamorphic history of the Malola granite, Bhilwara area, northwestern India

Neoarchaean crustal reworking in the Aravalli Craton: Petrogenesis and tectonometamorphic history of the Malola granite, Bhilwara area, northwestern India

Rift‐related multistage evolution of the Mangalwar Complex, Aravalli Craton (NW India): Evidence from elemental and Sr–Nd isotopic features of Proterozoic amphibolites

Geochemistry and petrogenesis of the Paleoproterozoic ortho-gneisses and granitoids of the Banded Gneissic Complex, central Rajasthan, NW India: Implications for crustal reworking processes

Contact Info

Product

Resources

About