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    "depname" : "Tapira",
    "deptype" : 10,
    "depage" : "69.5±3.5 K-Ar, biotite",
    "json" : "{\"id\":\"http:\\/\\/mrdata.usgs.gov\\/carbonatite\\/record\\/11\",\"type\":\"Feature\",\"geometry\":{\"type\":\"Point\",\"coordinates\":[-46.835833333333,-19.864444444444]},\"properties\":{\"country\":\"Brazil\",\"cntrycd\":\"BRZL\",\"stprov\":\"Minas Gerais\",\"depname\":\"Tapira\",\"latitude\":\"-19.8644444444444\",\"latdeg\":-19,\"latmin\":-51,\"latsec\":-52,\"longitude\":\"-46.8358333333333\",\"londeg\":-46,\"lonmin\":-50,\"lonsec\":-9,\"discdate\":\"1966\",\"startdate\":\"1983\",\"mintype\":\"s\\u00f6vite\",\"oreton\":\"166\",\"deptype\":10,\"niobium\":\"1.18\",\"ree\":\"0.03\",\"p2o5\":\"8.3\",\"grades\":\"Singer (1998); Jackson and Christiansen (1993)\",\"depage\":\"69.5\\u00b13.5 K-Ar, biotite\",\"agemy\":\"70\",\"tectset\":\"Cretaceous Alta Parana\\u00edba igneous province in the Proterozoic Brasilia belt dividing S\\u00e3o Francisco craton and Paran\\u00e1 basin\",\"rocks\":\"bebedourite, carbonatite, dunite, jacupirangite, peridotite, silexite, syenite, trachyte, tuff\",\"rocksmap\":\"phyllite, quartzite, schist (Precambrian)\",\"orebody_fm\":\"five plugs and veins inside oval alkali ultramafic complex ~35 sq. km\",\"ore_a\":\"2.3\",\"ore_area\":\"2.7\",\"ore_b\":\"1.5\",\"alttype\":\"fenitization (irregular)\",\"altwidth\":\"0\",\"comments\":\"Lateritic cover is 30 to 200 m thick. According to Kamitani and Hirano (1990), reserves include also 95 Mt at 17.68% TiO2, 921 Mt at 8.32% P2O5.  CarbBodyArea value reflects the main plug only.\",\"mineral\":[{\"role\":\"ore\",\"name\":\"anatase\"},{\"role\":\"ore\",\"name\":\"apatite\"},{\"role\":\"ore\",\"name\":\"ba-pyrochlore\"},{\"role\":\"ore\",\"name\":\"barite\"},{\"role\":\"ore\",\"name\":\"calzirtite\"},{\"role\":\"ore\",\"name\":\"crandallite\"},{\"role\":\"ore\",\"name\":\"ilmenite\"},{\"role\":\"ore\",\"name\":\"magnetite\"},{\"role\":\"ore\",\"name\":\"perovskite\"},{\"role\":\"ore\",\"name\":\"pyrochlore\"},{\"role\":\"ore\",\"name\":\"rhabdophane\"},{\"role\":\"ore\",\"name\":\"sphene\"},{\"role\":\"ore\",\"name\":\"sulfide minerals\"},{\"role\":\"ore\",\"name\":\"titanite\"},{\"role\":\"gangue\",\"name\":\"augite\"},{\"role\":\"gangue\",\"name\":\"biotite\"},{\"role\":\"gangue\",\"name\":\"calcite\"},{\"role\":\"gangue\",\"name\":\"diopside\"},{\"role\":\"gangue\",\"name\":\"dolomite\"},{\"role\":\"gangue\",\"name\":\"garnet\"},{\"role\":\"gangue\",\"name\":\"norsethite\"},{\"role\":\"gangue\",\"name\":\"olivine\"},{\"role\":\"gangue\",\"name\":\"phlogopite\"},{\"role\":\"gangue\",\"name\":\"vermiculite\"}],\"reference\":[\"Brigatti, M.F., Malferrari, D., Medici, L., Ottolini, L., and Poppi, L., 2004, Crystal chemistry of apatites from Tapira carbonatite complex, Brazil: European Journal of Mineralogy, v.16, p. 677\\u0096685.\",\"Brod, J.A., Gaspar, J.C., Diniz-Pinto, H.S., and Junqueira-Brod, T.C., 2005, Spinel chemistry and petrogenetic processes in the Tapira alkaline-carbonatite complex, Minas Gerais, Brazil: Revista Brasileira de Geosci\\u00eancias, v. 35, no. 1, p. 23\\u009632.\",\"Brod, J.A., Junqueira-Brod, T.C., Gaspar, J.C., Gibson, S.A., and Thompson, R.N., 2003, Ti-rich and Ti-poor garnet from Tapira carbonatite complex, SE Brazil\\u0097Fingerprinting fractional crystallisation and liquid immiscibility: 8th International Kimberlite Conference, Long Abstract, 5 p.\",\"Gomes, C.B., Ruberti, E., and Morbidelli, L., 1990, Carbonatite complexes from Brazil\\u0097A review: Journal of South American Earth Sciences, v. 3, no. 1, p. 51\\u009663.\",\"Jackson, W.D., and Christiansen, G., 1993, International strategic inventory summary report-\\u0096rare-earth oxides: U.S. Geological Survey Circular 930-N, 68 p.\",\"Kamitani, M., and Hirano, H., 1990, Important carbonatite-alkaline\\/alkaline complexes and related mineral resources in the world: Bulletin of the Geological Survey of Japan, v. 41, no. 11, p. 631\\u0096640.\",\"Orris, G.J., and Grauch, R.I., 2002, Rare earth element mines, deposits, and occurrences: U.S. Geological Survey Open-File Report 02-189, 174 p.\",\"Singer, D.A., 1998, Revised grade and tonnage model of carbonatite deposits: U.S. Geological Survey Open-File Report 98-235, 8 p.\",\"Ulbrich, H.H.G.J., and Gomes, C.B., 1981, Alkaline rocks from continental Brazil: Earth-Science Reviews, v. 17, p. 135\\u0096154.\",\"Woolley, A.R., 1987, Alkaline rocks and carbonatites of the world \\u0096 Part 1: North and South America: London, British Museum (Natural History), 216 p.\"]}}",
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}