Bundelkhand Granites: An Example of Collision-Related Precambrian Magmatism and Its Relevance to the Evolution of the Central Indian Shield

Rahman, Ahmadur; Zainuddin, Syed M.

doi:10.1086/648234

Cited by 31 publications

(10 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The heat required for TTG crust melting may be achieved by enormous crustal thickening in an Archaean Andean-type setting, as has been recently suggested by Laurent and Zeh (2015). It is noteworthy that based on the geochemical signatures, a subduction-related geodynamic realm has been suggested for the Bundelkhand granitoids (Rahman and Zainuddin, 1993;Mondal and Zainuddin, 1996). This interpretation is also supported by the results of this study as most of the granitoids follow a typical calc-alkaline trend ( Tables 4 and Supplementary Table S6).…”

Section: Neoarchaean Crustal Evolutionsupporting

confidence: 86%

Unravelling the record of Archaean crustal evolution of the Bundelkhand Craton, northern India using U–Pb zircon–monazite ages, Lu–Hf isotope systematics, and whole-rock geochemistry of granitoids

Kaur

Zeh

Chaudhri

et al. 2016

Precambrian Research

121

View full text Add to dashboard Cite

Section: Neoarchaean Crustal Evolutionsupporting

confidence: 86%

Unravelling the record of Archaean crustal evolution of the Bundelkhand Craton, northern India using U–Pb zircon–monazite ages, Lu–Hf isotope systematics, and whole-rock geochemistry of granitoids

Kaur

Zeh

Chaudhri

et al. 2016

Precambrian Research

121

View full text Add to dashboard Cite

“…Different types of granitoid are abundant within the massif, and earlier studies have mainly addressed their geology and petrological diversity (Saxena, 1961;Misra and S h a m , 1975; Alam and Zainuddin, 1981; Basu, 1986). Little work has been carried out on the chemical composition of the immense granitic batholith on a regional scale except for the work of Rahman and Zainuddin (1993) and Zainuddin et a/. (1994) in the northern portion of the massif.…”

Section: Ntro D U Cti 0 Nmentioning

confidence: 85%

Evolution of the Archean‐Palaeoproterozoic Bundelkhand Massif, central India—evidence from granitoid geochemistry

Mondal

Zainuddin

1996

Terra Nova

Self Cite

View full text Add to dashboard Cite

The Bundelkhand massif of Archean‐Palaeoproterozoic age is primarily a granite‐gneiss complex. Three distinct granitoid suites have been identified within the massif hornblende granitoids, biotite granitoids and leucogranitoids, in order of decreasing age. These granitoids were emplaced in previously deformed basement consisting of gneisses, banded iron formations and other metasediments, mafic to felsic volcanics. The granitoids exhibit a large compositional range from quartz diorite to syenogranite and show a calc‐alkaline trend. They are metaluminous to peraluminous and have I‐type characteristics. The SiO2 content ranges from 49 to 77 wt%. Low K2O/Na2O characterizes the granitoids. The oldest hornblende granitoids have low Rb and Yb contents compared to the younger biotite granitoids and leucogranitoids. Rb/Sr values for most of the granitoids are low (< 1). K/Rb ratios range from 95 to 373 which is, in general, comparable with other calc‐alkaline suites. Y/Nb ratios of the granitoids are > 1.2 which is a characteristic feature of magmas derived from sources chemically similar to island arc or continental margin basalts. The features mentioned above coupled with concentrations of Rb, Y, Nb, Yb, Ta and Th indicate a volcanic‐arc tectonic setting for the granitoids. It is proposed that the massif represents subduction‐related magmatism of an ocean in the southern part of the massif (an Andean plate margin).

show abstract

“…5c, d), low in SiO 2 , K 2 O, MgO and CaO, and high in FeO + MgO. Geochemical and mineralogical results suggest that these rocks are I-type granitoid which were formed by the partial melting of felsic crust or older crustal components (possibly TTGs as source components) (Mondal et al 2002;Pandey et al 2011) in the collision volcanic arc tectonic setting (Rahman and Zainuddin 1993;Mondal 2010). Evolved granite melts from different depths of older crustal component and their interactions with different infra-crustal components could have caused enrichment of radiogenic elements including the REE into the different granitoids of Bundelkhand.…”

Section: Granitoidsmentioning

confidence: 97%

Radioelemental, petrological and geochemical characterization of the Bundelkhand craton, central India: implication in the Archaean geodynamic evolution

Ray

Nagaraju

Singh

et al. 2015

Int J Earth Sci (Geol Rundsch)

View full text Add to dashboard Cite

with radioelemental ratios suggest that radioelemental variations in these lithounits are mainly related to abundances of the radioactive minerals that have formed by the fractionation of LILE from different magma sources. Based on present data, the craton can be divided into three distinct zones that can be correlated with its evolution in time and space. The central part, where gneisses are associated with metavolcanics of greenstone belt, is characterized by lowest radioelements and is the oldest component. The southern part, dominated by pink granitoid, is characterized by highest radioelements and is the youngest part. The northern part, dominated by grey and biotite granitoid, is characterized by moderate radioelements.

show abstract

Bundelkhand Granites: An Example of Collision-Related Precambrian Magmatism and Its Relevance to the Evolution of the Central Indian Shield

Cited by 31 publications

References 19 publications

Unravelling the record of Archaean crustal evolution of the Bundelkhand Craton, northern India using U–Pb zircon–monazite ages, Lu–Hf isotope systematics, and whole-rock geochemistry of granitoids

Unravelling the record of Archaean crustal evolution of the Bundelkhand Craton, northern India using U–Pb zircon–monazite ages, Lu–Hf isotope systematics, and whole-rock geochemistry of granitoids

Evolution of the Archean‐Palaeoproterozoic Bundelkhand Massif, central India—evidence from granitoid geochemistry

Radioelemental, petrological and geochemical characterization of the Bundelkhand craton, central India: implication in the Archaean geodynamic evolution

Contact Info

Product

Resources

About