 | | Journal (article/letter/editorial) | | natite complex, Shillong Plateau, Northeastern India: petrological and genetic significance Rajesh K...of Geology, Banaras Hindu University, Varanasi, India Received October 17, 2002; revised version accepted...Gwalani Summary The Shillong Plateau of northeastern India hosts four Early Cretaceous (105–107 Ma) ultram...and melilitolite), alkaline rocks (ijolite and nepheline syenite), and carbonatites. Serpentinized peridotite...melilitolite intrude peridotite and pyroxenite, while nepheline syenite and carbonatite intrude the ultramafic |  | Saha, Abhishek, Ganguly, Sohini, Ray, Jyotisankar, Koeberl, Christian, Thöni, Martin, Sarbajna, C., Sawant, S.S. (2017) Petrogenetic evolution of Cretaceous Samchampi-Samteran Alkaline Complex, Mikir Hills, Northeastern India: Implications on multiple melting events of heterogeneous plume and metasomatized sub-continental lithospheric mantle. Gondwana Research, 48. 237-256 doi:10.1016/j.gr.2017.04.022 | Journal (article/letter/editorial) | | Samchampi-Samteran Alkaline Complex, Mikir Hills, Northeastern India: Implications on multiple melting events...Samchampi-Samteran Alkaline Complex, Mikir Hills, Northeastern India: Implications on multiple melting events...Samchampi-Samteran Alkaline Complex, Mikir Hills, Northeastern India: Implications on multiple melting events...Science, Goa University Taleigao Plateau, Goa 403206, India M 2 AN National Institute of Oceanography (Council...Industrial Research) Dona Paula, Goa- 403 002, India 3 ED Department of Geology, University of Calcutta |  | | Journal (article/letter/editorial) | | Karbi Anglong, Shillong Plateau, Northeastern India Rajesh K. Srivastava*and Anup K. Sinha Igneous Petrology...rocks of Shillong plateau at Jasra, Karbi Anglong district of Assam. It is associated to the fracture system...lineaments and mainly comprises pyroxenite, gabbro and nepheline syenite. Few small mafic dykes, emplaced within...dyke is reported to cut gabbros or nepheline syenites. Nepheline syenites occur either in the form of...northeastern India (Kumar et al., 1996). Four such complexes (Sung Valley, Jasra, Samchampi, and Swangkre) are |  | Srivastava, Rajesh K., Heaman, Larry M., Sinha, Anup K., Shihua, Sun (2005) Emplacement age and isotope geochemistry of Sung Valley alkaline–carbonatite complex, Shillong Plateau, northeastern India: implications for primary carbonate melt and genesis of the associated silicate rocks. Lithos, 81 (1) 33-54 doi:10.1016/j.lithos.2004.09.017 | Journal (article/letter/editorial) | | alkaline–carbonatite complex, Shillong Plateau, northeastern India: Implications for primary carbonate melt and genesis...Geology, Banaras Hindu University, Varanasi 221 005, India b Department of Earth and Atmospheric Sciences,...intrusions that occur in the Shillong Plateau, India. This complex comprises calcite carbonatite and...melilitolite) and alkaline rocks (ijolite and nepheline syenite). Field relationship and geochemical characteristics...Keywords: Carbonatite; Silicate rocks; Sung Valley; India; U–Pb perovskite Age; Sr and Nd isotopes; Primary |  | Srivastava, Rajesh K., Guarino, Vincenza, Wu, Fu-Yuan, Melluso, Leone, Sinha, Anup K. (2019) Evidence of sub-continental lithospheric mantle sources and open-system crystallization processes from in-situ U–Pb ages and Nd–Sr–Hf isotope geochemistry of the Cretaceous ultramafic-alkaline-(carbonatite) intrusions from the Shillong Plateau, north-eastern India. Lithos, 330. 108-119 doi:10.1016/j.lithos.2019.02.009 | Journal (article/letter/editorial) | | intrusions from the Shillong Plateau, NorthEastern India Rajesh K. Srivastava, Vincenza Guarino, Fu-Yuan...intrusions from the Shillong Plateau, North-Eastern India, LITHOS, https://doi.org/10.1016/j.lithos.2019.02...intrusions from the Shillong Plateau, north-eastern India T Rajesh K. Srivastavaa, Vincenza Guarinob,* vincenza...Banaras Hindu University, Varanasi NU 221005, India b Federico II, I–80126 Napoli, Italy c MA Dipartimento...Beijing 100029, China d * CE Allahabad 211505, India PT Dr. K.S. Krishnan Geomagnetic Research Laboratory |  | Melluso, L., Srivastava, R. K., Petrone, C. M., Guarino, V., Sinha, A. K. (2012) Mineralogy and magmatic affinity of the Jasra intrusive complex, Shillong Plateau, India. Mineralogical Magazine, 76 (5) 1099-1117 doi:10.1180/minmag.2012.076.5.03 | Journal (article/letter/editorial) | | the Jasra intrusive complex, Shillong Plateau, India L. MELLUSO1,*, R. K. SRIVASTAVA2, C. M. PETRONE3...of Geology, Banaras Hindu University, Varanasi, India Department of Earth Sciences, Cambridge University...intrusive complex (Shillong Plateau, northeastern India) include phlogopite clinopyroxenites (with olivine...relics), alkali gabbros/monzodiorites, syenites and nepheline syenites. They have a potassic affinity (Na2O/K2O...volcanism in the Early Cretaceous of northeastern India. K EY WORDS : clinopyroxenites, gabbros, syenites |  | | Journal (article/letter/editorial) | | South America and India. In the Indian Subcontinent carbonatites occur in India, Pakistan, Afghanistan...considerable time range (>2400 Ma to <0.6 Ma) from India (Hogenakal, Newania, Sevathur, Sung Valley, Sarnu-Dandali...Geology, RTM Nagpur University, Nagpur (MH) – 440001, India; Email: randive101@yahoo.co.in Tushar Meshram: Department...440001, India; Geological Survey of India, Central Region, Seminary Hills, Nagpur (MH) – 440006, India Open...carbonatite magmatism of Northeastern region of India, whereas Schleicher et al. [22] and Pandit et al |  | | Journal (article/letter/editorial) | | R. Ramesh a a Physical Research Laboratory, India Published online: 16 Jul 2010. To cite this article:...Research Laboratory, Navrangapura, Ahmedabad 380 009, India Downloaded by [UQ Library] at 21:25 03 November...Carbonatites Age of Indian carbonatites Carbonatite in India was first discovered by Sukheswala and Udas (1963)...INDIAN CARBONATITES 19 FIG. 1. Schematic map of India (modified from Krishnamurthy et al., 2000), showing...(Amba DongarSiriwasan); 5 = Kutni-Beldih; 6 = Swangkre; 7 = Sung Valley; 8 = Jasra; 9 = Samchampi; 10 |  | Veena, K., Pandey, B. K., Krishnamurthy, P., Gupta, J. N. (1998) Pb, Sr and Nd Isotopic Systematics of the Carbonatites of Sung Valley, Meghalaya, Northeast India: Implications for Contemporary Plume-Related Mantle Source Characteristics. Journal of Petrology, 39 (11) 1875-1884 doi:10.1093/petroj/39.11-12.1875 | Journal (article/letter/editorial) | | Systematics of the Carbonatites of Sung Valley, Meghalaya, Northeast India: Implications for Contemporary Plume-Related...DEPARTMENT OF ATOMIC ENERGY, HYDERABAD—500 016, INDIA RECEIVED SEPTEMBER 30, 1997; REVISED TYPESCRIPT...obtained for the carbonatites from Sung Valley, Meghalaya, placing their time of emplacement very close...similar to that observed for Ambadongar, western India, but different from the carbonatites of East Africa...preferentially an EM2 type signature. INTRODUCTION Valley, India Carbonatites are carbonate-rich igneous rocks of |  | | Book | | Series Series Editor Satish C. Tripathi, Lucknow, India The Society of Earth Scientists Series aims to...Atmospheric Science University of Hyderabad Hyderabad, India ISSN 2194-9204 ISSN 2194-9212 (electronic) Society...Gewerbestrasse 11, 6330 Cham, Switzerland Foreword India is known since long to possess large reserves of...rich in light rare earth element. Exploration in India for Rare Earth Element (REE) deposits since the...the RE Industry in India largely through the initiative taken by the IREL (India) Limited, the Atomic |  | | Journal (article/letter/editorial) | | suggested that the volcanic products in the Qorveh district formed from two distinctive volcanic cycles: High-K...tectonic settings have been proposed for the Qorveh district: within-plate or OIB-like setting (Haghnazar and...considered a Pleistocene age (0.5–1.3 Ma) for the District, and no volcanic activities were recorded during...silica-undersaturated and large amounts of CIPW-normative nepheline can 13 be calculated. Microprobe analyses of...times the whole rock contents. CIPW-normative nepheline is contained within hyaline mesostases, whose |  | | Report (issue) | | belt passing through northern Britain and east and west Greenland. The second phase occurred at 54 Ma, was...white—glaciers; dashed lines—extinct rift zones (two in west Iceland and two in east Iceland). Downloaded from...location for the locus of melt extraction ~500 km west of St. Helena. No current volcanism is observed...the Walvis Ridge is mirrored by similar volcanism west of the Mid-Atlantic Ridge, the conjugate Rio Grande...resulting from changes in distant plate motions (e.g., India-Eurasia and Africa-Europe collisions). They proposed |
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