Search Results - "Rao, N.V. Chalapathi"

Post-collisional calc-alkaline lamprophyres from the Kadiri greenstone belt: Evidence for the Neoarchean convergence-related evolution of the Eastern Dharwar Craton and its schist belts by Pandey, Ashutosh, Chalapathi Rao, N.V., Chakrabarti, Ramananda, Pankaj, Praveer, Pandit, Dinesh, Pandey, Rohit, Sahoo, Samarendra

“…Lamprophyres from the greenstone belts play a crucial role in deciphering tectonic and geodynamic processes operating during the Archean. This study presents a…”
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Petrogenesis of a Mesoproterozoic shoshonitic lamprophyre dyke from the Wajrakarur kimberlite field, eastern Dharwar craton, southern India: Geochemical and Sr-Nd isotopic evidence for a modified sub-continental lithospheric mantle source by Pandey, Ashutosh, Chalapathi Rao, N.V., Chakrabarti, Ramananda, Pandit, Dinesh, Pankaj, Praveer, Kumar, Alok, Sahoo, Samarendra

“…Mineralogy and geochemistry of the Udirpikonda lamprophyre, located within the Mesoproterozoic diamondiferous Wajrakarur kimberlite field (WKF), towards the…”
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Subduction – tectonics in the evolution of the eastern Dharwar craton, southern India: Insights from the post-collisional calc-alkaline lamprophyres at the western margin of the Cuddapah basin by Pandey, Ashutosh, Chalapathi Rao, N.V., Pandit, Dinesh, Pankaj, Praveer, Pandey, Rohit, Sahoo, Samarendra, Kumar, Alok

“…[Display omitted] •Recognition of calc-alkaline nature of the Mudigubba lamprophyres.•Bulk geochemistry reflects a strong arc-signals.•Source-enrichment linked…”
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Petrogenesis of end-Cretaceous/Early Eocene lamprophyres from the Deccan Large Igneous Province: Constraints on plume-lithosphere interaction and the post-Deccan lithosphere-asthenosphere boundary (LAB) beneath NW India by Pandey, Rohit, Pandey, Ashutosh, Chalapathi Rao, N.V., Belyatsky, B., Choudhary, A.K., Lehmann, B., Pandit, Dinesh, Dhote, Prashant

“…We present petrology, geochemistry and radiogenic isotope (Sr and Nd) data of thirteen post-Deccan lamprophyre dykes in the Narmada rift zone from the…”
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A Late Cretaceous (ca. 90Ma) kimberlite event in southern India: Implication for sub-continental lithospheric mantle evolution and diamond exploration by Chalapathi Rao, N.V., Dongre, A., Wu, Fu-Yuan, Lehmann, B.

“…We report groundmass perovskite U–Pb (SIMS) ages, perovskite Nd isotopic (LA-ICPMS) composition and bulk-rock geochemical data of the Timmasamudram…”
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Re–Os isotope study of Indian kimberlites and lamproites: Implications for mantle source regions and cratonic evolution by Chalapathi Rao, N.V., Creaser, R.A., Lehmann, B., Panwar, B.K.

“…We report the first Re–Os isotope data for samples from Mesoproterozoic kimberlite and lamproite occurrences from the Eastern Dharwar craton and end-Cretaceous…”
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Petrology and geochemistry of the diamondiferous Jamnidih occurrence, Bastar Craton, Central India: Metabasalt and not a kimberlite by Singh, Mahendra Kumar, Pandey, Rohit, Sharma, Abhinay, Rao, N.V. Chalapathi

“…•Revisiting the diamondiferous kimberlite from Bastar Craton, India.•New evidence from field, petrography, mineral chemistry and geochemistry.•Absence of…”
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Introduction to special issue on continental lithosphere by Vasanthi, A., Kumar, Prakash, Rao, N.V. Chalapathi, He, Chuansong

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Petrogenesis and geodynamic environment of the Recent pyroclastic deposits from Baïgom and Petpenoun volcanoes of the Noun Plain, Cameroon Volcanic Line, Central Africa by Ziem A Bidias, Luc Achille, Mohan, Mekala Ram, Rao, N.V. Chalapathi, Moundi, Amidou

“…•Mineralogical assemblages of olivine and clinopyroxenes phenocrysts in scoria.•Clinopyroxene-thermometry provides temperatures of 1188–1267 ℃.•The parental…”
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Lithosphere–asthenosphere interaction and carbonatite metasomatism in the genesis of Mesoproterozoic shoshonitic lamprophyres at Korakkodu, Wajrakarur kimberlite field, Eastern Dharwar Craton, southern India by Raghuvanshi, Sneha, Pandey, Ashutosh, Pankaj, Praveer, Rao, N.V. Chalapathi, Chakrabarti, Ramananda, Pandit, Dinesh, Pandey, Rohit, Hari, K. R.

“…The spatial and temporal association between lamprophyres and kimberlites provides unique opportunities to explore their genetic relationships. This paper…”
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New palaeomagnetic and rock magnetic results on Mesoproterozoic kimberlites from the Eastern Dharwar craton, southern India: Towards constraining India's position in Rodinia by Venkateshwarlu, M., Chalapathi Rao, N.V.

“…► New palaeomagnetic data reported for 1.1Ga Mesoproterozoic kimberlites, southern India. ► These include first such results from NKF and RKF kimberlite…”
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An island‐arc tectonic setting for the Neoarchean Sonakhan Greenstone Belt, Bastar Craton, Central India: Insights from the chromite mineral chemistry and geochemistry of the siliceous high‐Mg basalts (SHMB) by Manu Prasanth, M.P., Hari, K.R., Chalapathi Rao, N.V., Hou, Guiting, Pandit, Dinesh, Manikyamba, C.

“…The Neoarchean Sonakhan Greenstone Belt, located in the northeastern fringes of Bastar Craton, Central India, is dominated by basalts, andesites, dacites, and…”
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Neoarchean suprasubduction zone magmatism in the Sonakhan greenstone belt, Bastar Craton, India: Implications for subduction initiation and melt extraction by Manu Prasanth, M.P., Hari, K.R., Chalapathi Rao, N.V., Santosh, M., Hou, Guiting, Tsunogae, Toshiaki, Pandit, Dinesh, Manikyamba, C.

“…The Neoarchean Sonakhan greenstone belt (SGB) in the north‐eastern Bastar Craton is mainly composed of an association of pillowed and massive tholeiitic…”
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Petrogenesis of the Mesoproterozoic Lamproites from the Krishna Valley, Eastern Dharwar Craton, Southern India by Rao, N.V. Chalapathi, Kamde, G., Kale, H.S., Dongre, A.

“…Petrology and geochemistry of eleven Mesoproterozoic lamproites from the Krishna valley, Eastern Dharwar craton, are presented. The Krishna lamproites show…”
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Petrochemistry and Sr-Nd isotopes of post-collisional Neoproterozoic (ca. 950 Ma) amphibolite dykes of continental flood basalt affinity from the Simdega area: Implications for the geodynamic evolution of the Chhotanagpur Gneissic Complex, Eastern India by Kumar, Deepak, Rao, N.V. Chalapathi, Prabhat, Priyesh, Chatterjee, Amitava, Rahaman, Waliur

“…Metamorphosed mafic dykes are significant stratigraphic markers which also represent a shift from extensional to compressional geodynamic processes. We present…”
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Petro-geochemistry, Sr Nd isotopes and 40Ar/39Ar ages of fractionated alkaline lamprophyres from the Mount Girnar igneous complex (NW India): Insights into the timing of magmatism and the lithospheric mantle beneath the Deccan Large Igneous Province by Sahoo, Samarendra, Rao, N.V. Chalapathi, Monié, Patrick, Belyatsky, B., Dhote, Prashant, Lehmann, B.

“…Mount Girnar is one of the most conspicuous alkaline complexes (gabbro-diorite-syenite-lamprophyre), which intrude some of the earliest erupted basalts (ca. 69…”
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U-Pb zircon age, geochemistry and petrogenesis of Mesoarchean anorthositic rocks from the Holenarsipur Greenstone Belt, Western Dharwar Craton: Implications for accretionary tectonics in southern India by Panicker, Arathi G., Mohan, M. Ram, Upadhyay, Dewashish, Raju, B. Vikram, Chauhan, Hiredya, Rao, N.V. Chalapathi

“…The Doddakadanur Anorthosite Complex is a well-preserved sequence of anorthosites, gabbroic anorthosites, and anorthositic gabbros intrusive into amphibolites…”
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Supercontinent transition as a trigger for ~1.1 Gyr diamondiferous kimberlites and related magmatism in India by Pandey, Ashutosh, Rao, N.V. Chalapathi

“…Kimberlites are volatile-rich deep mantle-derived rocks that often contain diamonds. Numerous Grenvillian (ca. 1.1 Gyr) diamondiferous kimberlites, ultramafic…”
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Report on the “National Conference on Women in Geosciences: Opportunities, Challenges and Accomplishments”, (2- 4 September, 2024) National Centre for Earth Science Studies, MoES, Thiruvananthapuram by Mukherjee, Sneha, Resmi, E.A., Chalapathi Rao, N.V.

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SHRIMP U-Pb zircon geochronology of the carbonatite-hosted REE deposit of Kamthai, Late Cretaceous polychronous Sarnu Dandali alkaline complex, NW India: Links to plume-related metallogeny and CO2 outgassing at the K-Pg boundary by Bhunia, Sudipa, Chalapathi Rao, N.V., Belyatsky, B., Talukdar, D., Pandey, Rohit, Lehmann, B.

“…[Display omitted] •SHRIMP age of Kamthai carbonatite-hosted REE deposit is 68.4 ± 1.8 Ma.•Unambiguously links it to the Deccan Large Igneous Province.•One of…”
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