D
D. Srinivasa Sarma
Researcher at National Geophysical Research Institute
Publications - 50
Citations - 930
D. Srinivasa Sarma is an academic researcher from National Geophysical Research Institute. The author has contributed to research in topics: Dharwar Craton & Craton. The author has an hindex of 15, co-authored 40 publications receiving 711 citations. Previous affiliations of D. Srinivasa Sarma include Academy of Scientific and Innovative Research & Council of Scientific and Industrial Research.
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Archaean gold mineralization synchronous with late cratonization of the Western Dharwar Craton, India: 2.52 Ga U–Pb ages of hydrothermal monazite and xenotime in gold deposits
D. Srinivasa Sarma,Ian R. Fletcher,Birger Rasmussen,Neal J. McNaughton,M. Ram Mohan,David I. Groves +5 more
TL;DR: New zircon U-Pb ages for a felsic volcanic rock (2,588 ± 10 Ma) and an intrusive granite (2.555 ± 6 Ma) in the Western Dharwar Craton, southern India, were reported in this article.
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Detrital zircon U–Pb ages and Hf-isotope systematics from the Gadag Greenstone Belt: Archean crustal growth in the western Dharwar Craton, India
TL;DR: In this article, detrital zircons from two metagreywackes in a late basin from the Gadag Greenstone Belt preserve at least eight age populations ranging in age from ca 3.34 to 2.6.
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Subduction related tectonic evolution of the Neoarchean eastern Dharwar Craton, southern India: New geochemical and isotopic constraints
TL;DR: In this paper, the authors proposed a petrogenetic model for the NEARCHAN eastern Dharwar Craton (EDC), which involves multi-stage processes in a supra subduction regime involving slab dehydration, formation of hydrous basaltic melts, and re-melting and interaction with sub-arc basALTic crust at low pressures where amphibole+/-plagioclase is the dominant residual phase.
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SHRIMP zircon and titanite U-Pb ages, Lu-Hf isotope signatures and geochemical constraints for ∼2.56 Ga granitic magmatism in Western Dharwar Craton, Southern India: Evidence for short-lived Neoarchean episodic crustal growth?
M. Ram Mohan,D. Srinivasa Sarma,Neal J. McNaughton,Ian R. Fletcher,Simon A. Wilde,Md. Alam Siddiqui,Birger Rasmussen,Bryan Krapez,Courtney J. Gregory,Sandra L. Kamo +9 more
TL;DR: In this article, the authors show that the Gadag greenstone belt (GGB) has an evolutionary history distinct from the Chitradurga greenstone belts (CGB) to the south, which was previously considered to be linked to that of the GGB, based on the continuity of lithological associations.
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Constraints on the Tectonic Setting of the Andaman Ophiolites, Bay of Bengal, India, from SHRIMP U-Pb Zircon Geochronology of Plagiogranite
Abstract: The Andaman ophiolites are well exposed in the Andaman group of islands, which is part of the Sunda-Burmese double-chain arc system in the Bay of Bengal, India. Plagiogranites occurring on the eastern margin of the southern part of South Andaman Island appear as interstitial vermicular and micrographic intergrowths of quartz and plagioclase. They are tonalitic to trondhjemitic in composition, and their Rb, Yb, Ta, and Y abundances are characteristic of a volcanic-arc affinity. Sensitive high-resolution ion microprobe U-Pb dating of zircons from a plagiogranite within the Andaman ophiolite has yielded a weighted mean 206Pb/238U age of Ma, interpreted as the age of its crystallization. The subduction-related plagiogranite has intruded a gabbro unit of the Andaman ophiolites as well as extrusives of the East Coast Volcanics at this time. Since the Andaman ophiolitic rocks predate the plagiogranite, they cannot have been generated in the currently active Late Miocene Andaman-Java subduction zone and ...