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Browsing by Author "Subramanyam, K.S.V."

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Archean seawater composition and depositional environment - Geochemical and isotopic signatures from the stromatolitic carbonates of Dharwar Craton, India

Khelen, A.C.; Manikyamba, C.; Subramanyam, K.S.V.; Santosh, M.; Ganguly, S.; Kalpana, M.S.; Rao, D.V.S. (Precambrian Research. 130; 2019; 35-57.)

The well-preserved stromatolitic carbonates from Neoarchean Sandur, Chitradurga and Shimoga greenstone belts of Dharwar Craton were studied to constrain the depositional conditions, geochemical, isotopic characteristics ...
Mantle heterogeneity, plume-lithosphere interaction at rift controlled ocean-continent transition zone: evidence from trace-PGE geochemistry of Vempalle flows, Cuddapah Basin, India

Singh, Th.D.; Manikyamba, C.; Subramanyam, K.S.V.; Ganguly, S.; Khelen, A.C.; Reddy, N.R. (Geoscience Frontiers. 9(6); 2018; 1809-1827.)

This study reports major, trace, rare earth and platinum group element compositions of lava flows from the Vempalle Formation of Cuddapah Basin through an integrated petrological and geochemical approach to address mantle ...
Meso-Neoarchean magmatism and episodic crustal growth in the Kudremukh-Agumbe granite-greenstone belt, western Dharwar Craton, India

Pahari, A.; Tang, L.; Manikyamba, C.; Santosh, M.; Subramanyam, K.S.V.; Ganguly, S. (Precambrian Research. 323; 2019; 16-54.)

Mafic volcanic rocks and dykes associated with Na-rich TTG and K-rich granites in the Kudremukh greenstone belt of western Dharwar Craton provides a window to Precambrian crustal evolution in the southern Peninsular India. ...
U enrichment and Th/U fractionation in Archean boninites: Implications for paleo-ocean oxygenation and U cycling at juvenile subduction zones

Manikyamba, C.; Said, N.; Santosh, M.; Saha, A.; Ganguly, S.; Subramanyam, K.S.V. (Journal of Asian Earth Sciences. 157; 2017; 187-197.)

Phanerozoic boninites record enrichments of U over Th, giving Th/U 0.5-1.6, relative to intraoceanic island arc tholeiites (IAT) where Th/U averages 2.6. Uranium enrichment is attributed to incorporation of shallow, oxidized ...
Volcano-sedimentary and metallogenic records of the Dharwar greenstone terranes, India: Window to Archean plate tectonics, continent growth, and mineral endowment

Manikyamba, C.; Ganguly, S.; Santosh, M.; Subramanyam, K.S.V. (Gondwana Research. 50; 2017; 38-66.)

The Dharwar Craton in southern peninsular India incorporates well developed Meso-Neoarchean greenstone terranes where komatiite-tholeiite and picrite-boninite-Nb-enriched basalt-high Mg-andesite- and adakite are well-preserved. ...

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Browsing by Author "Subramanyam, K.S.V."

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