ID: 11
rec_id: 11
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."]}}
url: https://mrdata.usgs.gov/carbonatite/show-carbonatite.php?rec_id=11