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American Mineralogist

Journal of Earth and Planetary Materials

Ed. by Baker, Don / Xu, Hongwu / Swainson, Ian


IMPACT FACTOR 2018: 2.631

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1945-3027
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Volume 104, Issue 5

Issues

Origin of vesuvianite-garnet veins in calc-silicate rocks from part of the Chotanagpur Granite Gneiss Complex, East Indian Shield: The quantitative P-T-XCO2 topology in parts of the system CaO-MgO-Al2O3-SiO2-H2O-CO2 (+Fe2O3, F)

Anindita Dey / Sirina Roy Choudhury / Subham Mukherjee / Sanjoy Sanyal / Pulak Sengupta
Published Online: 2019-04-26 | DOI: https://doi.org/10.2138/am-2019-6811

Abstract

A calc-silicate rock from part of the Chotanagpur Granite Gneiss Complex, East India, develops veins and patches of vesuvianite (F: 2.3–3.9 apfu, Fe3+: 1.7–2.1 apfu) and garnet (Gr71–80Alm12–17Adr1–9) proximal to amphibole-bearing quartzo-feldspathic pegmatitic veins. The host calc-silicate rock exhibits a prominent gneissic banding that is defined by alternate clinopyroxene- and plagioclase-rich layers. The vesuvianite-garnet veins are both parallel and cross-cutting the gneissic banding of the host calc-silicate rock. Two contrasting mineralogical domains that are rich in garnet and vesuvianite, respectively, develop within the vesuvianite-garnet veins. Textural studies support the view that the garnet- and vesuvianite-rich domains preferentially develop in the clinopyroxene- and plagioclase-rich layers of the host calc-silicate rocks, respectively. Some of the vesuvianite-rich domains of the veins develop the assemblage vesuvianite + quartz + calcite + anorthite (as a result of the reaction diopside + quartz + calcite + anorthite = vesuvianite) that was deemed metastable in the commonly used qualitative isobaric T-XCO2 topology in the system CaO-MgO-Al2O3-SiO2-H2O-CO2 (CMASV).

Using an internally consistent thermodynamic database, quantitative petrogenetic grids in the P-T and isobaric T-XCO2 spaces have been computed in the CMASV system. The influence of the non-CMASV components (e.g., Na, Fe3+, F) on the CMASV topologies have been discussed using the published a-X relations of the minerals. Our study shows topological inversion in the isobaric T-XCO2 space that primarily depends upon the composition of the vesuvianite. The quantitative CMASV topologies presented in this study successfully explain the stabilities of the natural vesuvianite-bearing assemblages including the paradoxical assemblage vesuvianite + quartz + calcite + anorthite.

Application of the activity-corrected CMASV topology suggests that infiltration of F-bearing oxidizing aqueous fluids into the calc-silicate rocks develop the vesuvianite-garnet veins in the studied area. A genetic link between quartzo-feldspathic pegmatites and the vesuvianite-garnet veins seems plausible.

This study demonstrates controls of topological inversion in the complex natural system, owing to which certain mineral assemblages develop in nature that are otherwise deemed metastable in one set of reaction geometry.

Keywords: Calc-silicate rocks; vesuvianite; CMASV petrogenetic grid; fluorine infiltration; topological inversion

References cited

  • Acharyya, S.K. (2003) The nature of Mesoproterozoic Central Indian Tectonic Zone with exhumed and reworked older granulites. Gondwana Research, 6, 197–214.Google Scholar

  • Ahmed-Said, Y., and Leake, B.E. (1996) The conditions of metamorphism of a grossular-wollastonite vesuvianite skarn from the Omey Granite, Connemara, western Ireland, with special reference to the chemistry of vesuvianite. Mineralogical Magazine, 60, 541–550.Google Scholar

  • Allen, F.M., and Burnham, C.W. (1992) A comprehensive structure-model for vesuvianite; symmetry variations and crystal growth. Canadian Mineralogist, 30, 1–18.Google Scholar

  • Anderson, J.L., and Smith, D.R. (1995) The effects of temperature and fO2 on the Al-in-hornblende barometer. American Mineralogist, 80, 549–559.Google Scholar

  • Arem, J.E. (1973) Idocrase (vesuvianite)—A 250-year puzzle. Mineralogical Record, 4, 164–174.Google Scholar

  • Armbruster, T., and Edwin, G. (2000a) P4/n and P4nc long-range ordering in low-temperature vesuvianites. American Mineralogist, 85, 563–569.Google Scholar

  • Armbruster, T., and Edwin, G. (2000b) Tetrahedral vacancies and cation ordering in low-temperature Mn-bearing vesuvianites: Indication of a hydrogarnet-like substitution. American Mineralogist, 85, 570–577.Google Scholar

  • Balassone, G., Talla, D., Beran, A., Mormone, A., Altomare, A., Moliterni, A., Mondillo, N., Saviano, M., and Petti, C. (2011) Vesuvianite from Somma-Vesuvius volcano (southern Italy): Chemical, X‑ray diffraction and single-crystal polarized FTIR investigations. Periodico di Mineralogia, 80, 369–384.Google Scholar

  • Bhattacharya, B.P. (1976) Metamorphism of the Precambrian rocks of the central part of Santhal Parganas district, Bihar. Quarternary Journal of the Geology, 48, 183–196.Google Scholar

  • Bogoch, R., Kumarapeli, S., and Matthews, A. (1997) High-pressure K-feldspar—vesuvianite-bearing assemblage in the Central Metasedimentary Belt of the Grenville Province, Saint Jovite area, Quebec. Canadian Mineralogist, 35(5), 1269–1275.Google Scholar

  • Cartwright, I., and Oliver, N.H.S. (1994) Fluid flow during contact metamorphism at Mary Kathleen, Queensland, Australia. Journal of Petrology, 35, 1493–1519.Google Scholar

  • Chatterjee, N. (2018) An assembly of the Indian Shield at c. 1.0 Ga and shearing at c. 876–784 Ma in Eastern India: insights from contrasting PT paths, and burial and exhumation rates of metapelitic granulites. Precambrian Research, 317, 117–136.Google Scholar

  • Chatterjee, N., and Ghose, N.C. (2011) Extensive Early Neoproterozoic high-grade metamorphism in North Chotanagpur Gneissic Complex of the Central Indian Tectonic Zone. Gondwana Research, 20, 362–379.Google Scholar

  • Chatterjee, N., Crowley, J.L., and Ghose, N.C. (2008) Geochronology of the 1.55Ga Bengal anorthosite and Grenvillian metamorphism in the Chotanagpur gneissic complex, eastern India. Precambrian Research, 161, 303–316.Google Scholar

  • Chatterjee, N., Banerjee, M., Bhattacharya, A., and Maji, A.K. (2010) Monazite chronology, metamorphism—anatexis and tectonic relevance of the mid-Neoproterozoic Eastern Indian Tectonic Zone. Precambrian Research, 179, 99–120.Google Scholar

  • Connolly, J.A.D. (2005) Computation of phase equilibria by linear programming: A tool for geodynamic modeling and its application to subduction zone decarbonation. Earth and Planetary Science Letters, 236, 524–541.Google Scholar

  • Dey, A., Mukherjee, S., Sanyal, S., Ibanez-Mejia, M., and Sengupta, P. (2017) Deciphering sedimentary provenance and timing of sedimentation from a suite of metapelites from the Chotanagpur Granite Gneissic Complex, India: Implications for Proterozoic Tectonics in the East-Central Part of the Indian Shield. In R. Mazumder, Ed., Sediment Provenance; Influences on compositional change from source to sink, pp. 453–486. Elsevier.Google Scholar

  • Droop, G.T.R. (1987) A general equation for estimating Fe3+ concentrations in ferromagnesian silicates and oxides from microprobe analyses, using stoichiometric criteria. Mineralogical Magazine, 51, 431–435.Google Scholar

  • Ellis, D.J., and Green, D.H. (1979) An experimental study of the effect of Ca upon garnet-clinopyroxene Fe-Mg exchange equilibria. Contributions to Mineralogy and Petrology, 71, 13–22.Google Scholar

  • Elmi, C., Brigatti, M.F., Pasquali, L., Montecchi, M., Laurora, A., Malferrari, D., and Nannarone, S. (2011) High-temperature vesuvianite: crystal chemistry and surface considerations. Physics and Chemistry of Minerals, 38, 459–468.Google Scholar

  • Enami, M., Suzuki, K., Liou, J., and Bird, D.K. (1993) Al-Fe3+ and F-OH substitutions in titanite and constraints on their P-T dependence. European Journal of Mineralogy, 5, 219–231.Google Scholar

  • Franz, G., and Spear, F. S. (1985) Aluminous titanite (sphene) from the Eclogite Zone, south-central Tauern Window, Austria. Chemical Geology, 50, 33–46.Google Scholar

  • Galuskin, E.V., Armbruster, T., Malsy, A., Galuskina, I.O., and Sitarz, M. (2003) Morphology, composition and structure of low-temperature P4/nnc high-fluorine vesuvianite whiskers from Polar Yakutia, Russia. Canadian Mineralogist, 41, 843–856.Google Scholar

  • Ganguly, J., and Saxena, S.K. (1987) Mixtures and Mineral Reactions. Springer.Google Scholar

  • Greenwood, H.J. (1967) Wollastonite-stability in H2O-CO2 mixtures and occurence in a contact-metamorphic aureole near Salmo British Columbia Canada. American Mineralogist, 52, 1669–1680.Google Scholar

  • Grew, E.S., Locock, A.J., Mills, S.J., Galuskina, I.O., Galuskin, E.V., and Hålenius, U. (2013) Nomenclature of the garnet supergroup. American Mineralogist, 98, 785–811.Google Scholar

  • Groat, L.A., Hawthorne, F.C., and Ercit, T.S. (1992a) The chemistry of vesuvianite. Canadian Mineralogist, 30, 19–48.Google Scholar

  • Groat, L.A., Hawthorne, F.C., and Ercit, T.S. (1992b) The role of fluorine in vesuvianite: A crystal-structure study. Canadian Mineralogist, 30, 1065.Google Scholar

  • Groat, L.A., Hawthorne, F.C., and Ercit, T.S. (1994) Excess cations in the crystal structure of vesuvianite. Canadian Mineralogist, 32, 497–504.Google Scholar

  • Groppo, C., Rolfo, F., Castelli, D., and Connolly, J.A.D. (2013) Metamorphic CO2 production from calc-silicate rocks via garnet-forming reactions in the CFAS-H2O-CO2 system. Contributions to Mineralogy and Petrology, 166, 1655–1675.Google Scholar

  • Halama, R., Savov, I.P., Garbe-Schönberg, D., Schenk, V., and Toulkeridis, T. (2013) Vesuvianite in high-pressure-metamorphosed oceanic lithosphere (Raspas Complex, Ecuador) and its role for transport of water and trace elements in subduction zones. European Journal of Mineralogy, 25, 193–219.Google Scholar

  • Harley, S.L., and Buick, I.S. (1992) Wollastonite–scapolite assemblages as indicators of granulite pressure-temperature-fluid histories: The Rauer Group, East Antarctica. Journal of Petrology, 33, 693–728.Google Scholar

  • Hensen, B.J. (1986) Theoretical phase relations involving cordierite and garnet revisited: the influence of oxygen fugacity on the stability of sapphirine and spinel in the system Mg-Fe-Al-Si-O. Contributions to Mineralogy and Petrology, 92, 362–367.Google Scholar

  • Hensen, B.J., and Harley, S.L. (1990) Graphical analysis of P-T-X relations in granulite facies metapelites. In High-Temperature Metamorphism and Crustal Anatexis, p. 19–56. Springer.Google Scholar

  • Hochella, M.F., Liou, J.G., Keskinen, M.J., and Kim, H. S. (1982) Synthesis and stability relations of magnesium idocrase. Economic Geology, 77, 798–808.Google Scholar

  • Hoisch, T.D. (1985) The solid solution chemistry of vesuvianite. Contributions to Mineralogy and Petrology, 89, 205–214.Google Scholar

  • Holdaway, M.J. (1966) Hydrothermal stability of clinozoisite plus quartz. American Journal of Science, 264, 643–667.Google Scholar

  • Holland, T., and Blundy, J. (1994) Non-ideal interactions in calcic amphiboles and their bearing on amphibole-plagioclase thermometry. Contributions to Mineralogy and Petrology, 116, 433–447.Google Scholar

  • Holland, T.J.B., and Powell, R. (1998) An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology, 16, 309–343.Google Scholar

  • Hover Granath, V.C., Papike, J.J., and Labotka, T.C. (1983) The Notch Peak contact metamorphic aureole, Utah: Petrology of the Big Horse Limestone Member of the Orr Formation. Geological Society of America Bulletin, 94, 889–906.Google Scholar

  • Johnson, T.E., Hudson, N.F.C., and Droop, G.T.R. (2000) Wollastonite-bearing assemblages from the Dalradian at Fraserburgh, northeast Scotland and their bearing on the emplacement of garnetiferous granitoid sheets. Mineralogical Magazine, 64, 1165–1176.Google Scholar

  • Karmakar, S., Bose, S., Sarbadhikari, A.B., and Das, K. (2011) Evolution of granulite enclaves and associated gneisses from Purulia, Chhotanagpur Granite Gneiss Complex, India: Evidence for 990–940Ma tectonothermal event(s) at the eastern India cratonic fringe zone. Journal of Asian Earth Sciences, 41, 69–88.Google Scholar

  • Kerrick, D.M. (1970) Contact metamorphism in some areas of the Sierra Nevada, California. Geological Society of America Bulletin, 81, 2913–2938.Google Scholar

  • Kerrick, D.M., Crawford, K.E., and Randazzo, A.F. (1973) Metamorphism of calcareous rocks in three roof pendants in the Sierra Nevada, California. Journal of Petrology, 14, 303–325.Google Scholar

  • Ketcham, R.A. (2015) Calculation of stoichiometry from EMP data for apatite and other phases with mixing on monovalent anion sites. American Mineralogist, 100, 1620–1623.Google Scholar

  • Kretz, R. (1983) Symbols for rock-forming minerals. American Mineralogist, 68, 277–279.Google Scholar

  • Labotka, T.C., Nabelek, P.I., and Papike, J.J. (1988) Fluid infiltration through the Big Horse Limestone Member in the Notch Peak contact-metamorphic aureole, Utah. American Mineralogist, 73, 1302–1324.Google Scholar

  • Leake, B.E., Woolley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, A., Kisch, H.J., and Krivovichev, V.G. (1997) Nomenclature of amphiboles: Report of the subcommittee on amphiboles of the international mineralogical association commission on new minerals and mineral names. Mineralogical Magazine, 61, 295–321.Google Scholar

  • Leake, B.E., Woolley, A.R., Birch, W.D., Burke, E.A.J., Ferraris, G., Grice, J.D., Hawthorne, F.C., Kisch, H.J., Krivovichev, V.G., Schumacher, J.C., and others. (2004) Nomenclature of amphiboles: Additions and revisions to the International Mineralogical Association’s amphibole nomenclature. American Mineralogist, 89, 883–887.Google Scholar

  • Maji, A.K., Goon, S., Bhattacharya, A., Mishra, B., Mahato, S., and Bernhardt, H. (2008) Proterozoic polyphase metamorphism in the Chhotanagpur Gneissic Complex (India), and implication for transcontinental Gondwanaland correlation. Precambrian Research, 162, 385–402.Google Scholar

  • Markl, G., and Piazolo, S. (1999) Stability of high-Al titanite from low-pressure calcsilicates in light of fluid and host-rock composition. American Mineralogist, 84, 37–47.Google Scholar

  • Mukherjee, S., Dey, A., Sanyal, S., Ibanez-Mejia, M., Dutta, U., and Sengupta, P. (2017) Petrology and U–Pb geochronology of zircon in a suite of charnockitic gneisses from parts of the Chotanagpur Granite Gneiss Complex (CGGC): evidence for the reworking of a Mesoproterozoic basement during the formation of the Rodinia supercontinent. Geological Society, London, Special Publications, 457, SP457-6.Google Scholar

  • Mukherjee, S., Dey, A., Ibanez-Mejia, M., Sanyal, S., and Sengupta, P. (2018a) Geochemistry, U-Pb geochronology and Lu-Hf isotope systematics of a suite of ferroan (A-type) granitoids from the CGGC: Evidence for Mesoproterozoic crustal extension in the east Indian shield. Precambrian Research, 305, 40–63.Google Scholar

  • Mukherjee, S., Dey, A., Sanyal, S., and Sengupta, P. (2018b) Tectonothermal imprints in a suite of mafic dykes from the Chotanagpur Granite Gneissic complex (CGGC), Jharkhand, India: Evidence for late Tonian reworking of an early Tonian continental crust. Lithos, 320–321, 490–514.Google Scholar

  • Mukherjee, S., Dey, A., Sanyal, S., and Sengupta, P. (2019) Proterozoic crustal evolution of the Chotanagpur Granite Gneissic Complex, Jharkhand-Bihar-West Bengal, India: Current status and future prospect. In S. Mukherjee, Ed., Tectonics and Structural Geology: Indian Context, pp. 7–54. Springer.Google Scholar

  • Nabelek, P.I., and Morgan, S.S. (2012) Metamorphism and fluid flow in the contact aureole of the Eureka Valley–Joshua Flat–Beer Creek pluton, California. GSA Bulletin, 124, 228–239.Google Scholar

  • Nabelek, P.I., Bédard, J.H., Hryciuk, M., and Hayes, B. (2013) Short-duration contact metamorphism of calcareous sedimentary rocks by Neoproterozoic Franklin gabbro sills and dykes on Victoria Island, Canada. Journal of Metamorphic Geology, 31, 205–220.Google Scholar

  • Ogorodova, L.P., Kiseleva, I.A., Melchakova, L.V., and Spiridonov, E.M. (2011) Thermodynamic characteristics of minerals of the vesuvianite group. Geochemistry International, 49, 191–195.Google Scholar

  • Palache, C. (1935) The minerals of Franklin and Sterling Hill, Sussex County, New Jersey (No. 180). U.S. Government Printing Office.Google Scholar

  • Panikorovskii, L.T., Chukanov, V.N., Rusakov, S.V., Shilovskikh, V.V., Mazur, S.A., Balassone, G., Ivanyuk, Y.G., and Krivovichev, V.S. (2017) Vesuvianite from the Somma-Vesuvius Complex: New Data and Revised Formula. Minerals, 7(12), 248.Google Scholar

  • Patel, S.C. (2007) Vesuvianite-wollastonite-grossular-bearing calc-silicate rock near Tatapani, Surguja district, Chhattisgarh. Journal of Earth System Science, 116, 143–147.Google Scholar

  • Ray, S., Sanyal, S., and Sengupta, P. (2011) Mineralogical control on rheological inversion of a suite of deformed mafic dykes from parts of the Chottanagpur Granite Gneiss Complex of eastern India. In R.K. Srivastava, Ed., Dyke Swarms: Keys for Geodynamic Interpretation, pp. 263–276. Springer-Verlag.Google Scholar

  • Rekha, S., Upadhyay, D., Bhattacharya, A., Kooijman, E., Goon, S., Mahato, S., and Pant, N.C. (2011) Lithostructural and chronological constraints for tectonic restoration of Proterozoic accretion in the Eastern Indian Precambrian shield. Precambrian Research, 187, 313–333.Google Scholar

  • Rice, J.M. (1983) Metamorphism of rodingites: Part I. Phase relations in a portion of the system CaO–MgO–Al2O3–SiO2–CO2–H2O. American Journal of Science, 283, 121–150.Google Scholar

  • Robinson, P. (1991) The eye of the petrographer, the mind of the petrologist. American Mineralogist, 76, 1781–1810.Google Scholar

  • Roy Choudhury, S., Mukherjee, S., Dey, A., Sanyal, S., and Sengupta, P. (2016) Reaction textures in some calc-silicate enclaves from the Chotanagpur Granite Gneissic Complex, and their implications. In XXXVII Annual Meeting of the Electron Microscope Society of India pp. 84–85.

  • Saikia, A., Gogoi, B., Kaulina, T., Lialina, L., Bayanova, T., and Ahmad, M. (2017) Geochemical and U–Pb zircon age characterization of granites of the Bathani Volcano Sedimentary sequence, Chotanagpur Granite Gneiss Complex, eastern India: vestiges of the Nuna supercontinent in the Central Indian Tectonic Zone. Geological Society, London, Special Publications, 457.Google Scholar

  • Sanyal, S., and Sengupta, P. (2012) Metamorphic evolution of the Chotanagpur Granite Gneiss Complex of the East Indian Shield: current status. Geological Society, London, Special Publications, 365, 117–145.Google Scholar

  • Sengupta, P., and Raith, M.M. (2002) Garnet composition as a petrogenetic indicator: An example from a marble-calc-silicate granulite interface at kondapalle, Eastern Ghats Belt, India. American Journal of Science, 302, 686–725.Google Scholar

  • Sengupta, P., Karmakar, S., Dasgupta, S., and Fukuoka, M. (1991) Petrology of spinel granulites from Araku, Eastern Ghats, India, and a petrogenetic grid for sapphirine-free rocks in the system FMAS. Journal of Metamorphic Geology, 9, 451–459.Google Scholar

  • Sengupta, P., Sanyal, S., Dasgupta, S., Fukuoka, M., and Ehl, J. (1997) Controls of mineral reactions in high-grade garnet-wollastonite-scapolite-bearing calcsilicate rocks: an example from Anakapalle, Eastern Ghats, India. Journal of Metamorphic Geology, 15, 551–564.Google Scholar

  • Sengupta, P., Raith, M.M., and Datta, A. (2004) Stability of fluorite and titanite in a calc-silicate rock from the Vizianagaram area, Eastern Ghats Belt, India. Journal of Metamorphic Geology, 22, 345–359.Google Scholar

  • Singh, R.N., Thorpe, R., and Kristic, D. (2001) Galena Pb-isotope data of base metal occurrences in the Hesatu-Belbathan belt, eastern Precambrian shield. Journal of the Geological Society of India, 57, 535–538.Google Scholar

  • Smith, D.C. (1981) The pressure and temperature dependence of Al-solubility in sphene in the system Ti-Al-Ca-Si-OF. Progress in Experimental Petrology NERC Publication Series, D-18, 193–197.Google Scholar

  • Spear, F. S. (1993) Metamorphic Phase Equilibria and Pressure-Temperature-Time Paths. Monograph 1, 799 p. Mineralogical Society of America.Google Scholar

  • Tracy, R. J., and Frost, B.R. (1991) Phase equilibria and thermobarometry of calcareous, ultramafic and mafic rocks, and iron formations. Reviews in Mineralogy and Geochemistry, 26, 207–289.Google Scholar

  • Tracy, R.J., Jaffe, H.W., and Robinson, P. (1978) Monticellite marble at Cascade Mountain. Adirondack Mountains. New York. American Mineralogist, 63, 991–999.Google Scholar

  • Troitzsch, U., and Ellis, D.J. (2002) Thermodynamic properties and stability of AlF-bearing titanite CaTiOSiO4–CaAlFSiO4 Contributions to Mineralogy and Petrology, 142, 543–563.Google Scholar

  • Trommsdorff, V. (1968) Mineralreaktionen mit Wollastonit und Vesuvian in einem Kalksilikatfels der alpinen Disthenzone (Claro, Tessin). Schweizerische mineralogische und petrographische Mitteilungen, 48, 655–666.Google Scholar

  • Valley, J.W., and Essene, E.J. (1979) Vesuvianite, akermanite, monticellite and wollastonite equilibria and high XH2O/CO2 at Cascade slide, Mt Marcy Quad, Adirondack Mts. EOS, 60, 423.Google Scholar

  • Valley, J.W., Essene, E.J., and Peacor, D.R. (1983) Fluorine-bearing garnets in Adirondack calc-silicates. American Mineralogist, 68, 444–448.Google Scholar

  • Valley, J.W., Peacor, D.R., and Essene, E.J. (1985) Crystal chemistry of a Mg-vesuvianite and implications of phase equilibria in the system CaO-MgO-Al2O3-SiO2-H2O-CO2 Journal of Metamorphic Geology, 3, 137–153.Google Scholar

  • Zanoni, D., Rebay, G., and Spalla, M. (2016) Ocean floor and subduction record in the Zermatt-Saas rodingites, Valtournanche, Western Alps. Journal of Metamorphic Geology, 34, 941–961.Google Scholar

About the article


Received: 2018-09-13

Accepted: 2019-01-30

Published Online: 2019-04-26

Published in Print: 2019-05-27


FundingA.D. acknowledges financial support from the Council of Scientific and Industrial Research (CSIR), New Delhi. S.R.C. acknowledges financial support from Department of Atomic Energy, India and The Board of Research in Nuclear Sciences (DAE-BRNS). S.M. acknowledges financial support from the University Grants Commission (UGC), New Delhi. P.S. and S.S. acknowledge the grants received from the following programs awarded to the Department of Geological Sciences, Jadavpur University: University Potential for Excellence (UPE-Phase II) from UGC, Promotion of University Research and Scientific Excellence from DST (Department of Science and Technology, India), Fund for Improvement of Science and Technology (FIST-Phase II) from DST and Center of Advance Studies (CAS-phase VI) from UGC.


Citation Information: American Mineralogist, Volume 104, Issue 5, Pages 744–760, ISSN (Online) 1945-3027, ISSN (Print) 0003-004X, DOI: https://doi.org/10.2138/am-2019-6811.

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