Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

@article{168166,
        author = {G. Nagaraju and K. Rajendra prasad and M. Srinivas and K. Soni},
        title = {Geochemistry and Petrogenesis of the Danduvaripalle syenites, Eastern Dharwar Craton, southern India},
        journal = {International Journal of Innovative Research in Technology},
        year = {2024},
        volume = {11},
        number = {5},
        pages = {182-188},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=168166},
        abstract = {The Eastern Dharwar Craton (EDC) contains many Late Neoarchean to Paleoproterozoic syenites, whose origin is ambiguous. This work presents a geochemical analysis of the Danduvaripalle syenites (DVS), located at the western boundary of the Paleo-Mesoproterozoic Cuddapah Basin in the Eastern Deccan (EDC). The DVS has a metaluminous, alkaline, and magnesian geochemical composition. These metaluminous rocks are characterized by high overall alkali content, particularly K2O, moderate FeOt levels, and low MnO, MgO, and CaO concentrations. The chondrite-normalized REE patterns demonstrate LREE enrichment relative to HREE, with no Eu anomaly seen. Allanite, apatite, zircon, and monazite are the accessory minerals that contain substantial amounts of LREE in these syenites. The syenites lack MgO, Ni, Cr, and Sc, possess highly fractionated REE patterns, and have negative Nb–Ta–Ti anomalies, with low Nb/U and elevated Th/U ratios, indicating a subduction zone environment. The Danduvaripalle syenite has geochemical affinities with arc-related alkaline rocks and volcanic arc granitoids in tectonic discrimination diagrams. These geochemical characteristics align with their formation by partially melting a mafic crustal source, which later saw fractionation of amphibole and garnet. We propose that the crustal source of these syenites experienced partial melting due to thermal influence from the ascending plume during the Paleoproterozoic expansion.},
        keywords = {Alkaline rocks, Danduvaripalle syenites, Partial melting, Lower crust, Garnet},
        month = {October},
        }