ID: 43
rec_id: 43
depname: Ondurukurume
deptype: 10
depage: 129?
json: {"id":"http:\/\/mrdata.usgs.gov\/carbonatite\/record\/43","type":"Feature","geometry":{"type":"Point","coordinates":[16.254444444444,-20.769722222222]},"properties":{"country":"Namibia","cntrycd":"NAMB","stprov":"Damaraland","depname":"Ondurukurume","latitude":"-20.7697222222222","latdeg":-20,"latmin":-46,"latsec":-11,"longitude":"16.2544444444444","londeg":16,"lonmin":15,"lonsec":16,"mintype":"beforsite, s\u00f6vite","oreton":"8","deptype":10,"niobium":"0.3","ree":"3","p2o5":"7","grades":"Verwoerd (1967, 1986)","depage":"129?","agemy":"129","tectset":"Neoproterozic Damara orogenic belt; Late Mesozoic alkaline magmatic province probably related to opening of South Atlantic and to Tristan da Cunha plume","rocks":"carbonatite, nepheline syenite, syenite, volcanic breccia","rocksmap":"granite, marble, quartzite, graywacke, schist (Neoproterozoic)","orebody_fm":"circular plug, dikes","ore_a":"2","ore_area":"2.4","ore_b":"1.5","alttype":"fenitization","altwidth":"0.3","dep5km":"10","comments":"0.06\u00960.47% ThO2, 2.5% SrCO3, 0.02 kg\/t U3O8 in ore.","mineral":[{"role":"ore","name":"ancylite"},{"role":"ore","name":"apatite"},{"role":"ore","name":"barite"},{"role":"ore","name":"carbocernaite"},{"role":"ore","name":"cerianite"},{"role":"ore","name":"galena"},{"role":"ore","name":"hematite"},{"role":"ore","name":"monazite"},{"role":"ore","name":"psilomelane"},{"role":"ore","name":"pyrite"},{"role":"ore","name":"pyrochlore"},{"role":"ore","name":"strontianite"},{"role":"ore","name":"zircon"},{"role":"gangue","name":"aegerine"},{"role":"gangue","name":"ankerite"},{"role":"gangue","name":"calcite"},{"role":"gangue","name":"biotite"},{"role":"gangue","name":"chlorite"},{"role":"gangue","name":"dolomite"},{"role":"gangue","name":"quartz"},{"role":"gangue","name":"vermiculite"}],"reference":["B\u00fchn, B., 2008, The role of volatile phase for REE and Y fractionation in low-silica carbonate magmas\u0097Implications from natural carbonatites, Namibia: Mineralogy and Petrology, v. 92, p. 453\u0096470.","Comin-Chiaramonti, P., de Barros Gomes, C., Cundari, A., Castorina, F., and Censi, P., 2007, A review of carbonatite magmatism in the Paran\u00e1-Angola-Namibia (PAN) system: Periodico di Mineralogia, v. 76, no. 2-3, p. 25\u009678.","McManus, M.N.C., and Schneider, G.I.S, 1994, Namibia\u0097Industrial minerals, in Mathers, S.J., and Notholt, A.J.G., eds., Industrial minerals in developing countries: British Geological Survey, AGID Report Series, no. 18, p. 111\u0096134.","Prins, P., 1981, The geochemical evolution of the alkaline and carbonatite complexes of the Damaraland igneous province, south west Africa: Annale Universiteit van Stellenbosch, Serie A1 (Geologie), v. 3, p. 145\u0096278.","Verwoerd, W.J., 1986, Mineral deposits associated with carbonatites and alkaline rocks, in Anhaeusser, C.R., and Maske, S., eds., Mineral deposits of Southern Africa: Geological Society of South Africa, Johannesburg, v. 2, p. 2173\u00962191.","Verwoerd, W.J., 1967, The carbonatites of South Africa and South West Africa: Geological Survey of Republic of South Africa Handbook 6, 452 p.","Verwoerd, W.J., 1993, Update on carbonatites of South Africa and Namibia: South African Journal of Geology, v. 96, no. 3, p. 75\u009695.","Woolley, A.R., 2001, Alkaline rocks and carbonatites of the world \u0096 Part 3: Africa: London, The Geological Society, 372 p."]}}
url: https://mrdata.usgs.gov/carbonatite/show-carbonatite.php?rec_id=43