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Archaeology & Anthropology: Open Access

Neoarchean Granitoids of Bundelkhand Craton, India: Geochemistry and Geodynamic Settings

  • Open or Close Sumit Mishra1, Pradip K Singh2*, Vinod K Singh3, Alexander I Slabunov4, HC Nainwal1 and Neeraj Chaudhary3

    1 Department of Geology, Hemvati Nandan Bahuguna Garhwal University, India

    2División de Geociencias Aplicadas, Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), Mexico

    3Department of Geology, Institute of Earth Science, Bundelkhand University, India

    4Institutes of Geology, Karelian Research Centre, Russia

    *Corresponding author: Pradip K Singh, División de Geociencias Aplicadas, Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), Camino a la Presa,San José 2055, San Luis Potosí, Mexico

Submission: July 02, 2017; Published: October 17, 2018

DOI: 10.31031/AAOA.2018.03.000565

ISSN: 2577-1949
Volume3 Issue3


The orthoclase granite and granodiorite-granite series rocks are extensively exposed in the Bundelkhand granite greenstone belt around Jhansi, Babina and Mauranipur in central part of the craton which are mostly calc-alkaline in nature, low Sr (12-436ppm), low Y (9.1-67) and low Sr/Y (0.24- 21.37) ratio characteristics. These rocks have high Rb (77.7-539), moderate Nb (7.2-42.2) and Nd (21.92-115), and geochemically vary from mostly I- to A-type granites generally formed during syn-to post collision. The chondrite normalized rare earth element distribution pattern is poorly fractionated LaN/LuN=(3.4-31.79) with a negative Europium (Eu) anomaly (Eu/Eu*=0.2-0.82) showing subduction environment. The granodiorite-granite series rocks show mostly volcanic arc setting while orthoclase- granites plots within the syn-collosion to post-collisional granite fields on the Yb+Ta versus Rb and Nb versus Y discrimination diagram. Geochemical characteristics indicate that anhydrous partial melting of the Paleo-Mesoarchean TTG or mafic crustal through subduction setting responsible for formation of these rocks.

Keywords:Neoarchean granitoids; Subduction tectonics; Geodynamics settings; Bundelkhand craton

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