ID: 51
rec_id: 51
depname: Sandkopfsdrif
deptype: 10
depage: 56–54
json: {"id":"http:\/\/mrdata.usgs.gov\/carbonatite\/record\/51","type":"Feature","geometry":{"type":"Point","coordinates":[17.941944444444,-30.884166666667]},"properties":{"country":"South Africa","cntrycd":"SAFR","stprov":"Northern Cape","depname":"Sandkopfsdrif","altname":"Zandkops Drift","latitude":"-30.8841666666667","latdeg":-30,"latmin":-53,"latsec":-3,"longitude":"17.9419444444444","londeg":17,"lonmin":56,"lonsec":31,"mintype":"s\u00f6vite","oreton":"57","deptype":10,"niobium":"0.15","ree":"1","p2o5":"3.2","grades":"Singer (1998)","depage":"56\u009654","agemy":"55","tectset":"Proterozoic Namaqualand metamorphic complex of South African craton margin","rocks":"breccia, carbonatite, glimmerite","rocksmap":"gneiss (Proterozoic)","orebody_fm":"stock (pipe), dikes","ore_a":"1","ore_area":"0.8","ore_b":"1","alttype":"fenitization","altwidth":"0","comments":"Mainly oxidized zone\u0097ferruginous and manganiferous gossans. An inference deposit age after Verwoerd (1993).","mineral":[{"role":"ore","name":"apatite"},{"role":"ore","name":"churchite"},{"role":"ore","name":"goyazite"},{"role":"ore","name":"gorceixite"},{"role":"ore","name":"ilmenite"},{"role":"ore","name":"pyrochlore"},{"role":"ore","name":"titanite"},{"role":"gangue","name":"aegirine-augite"},{"role":"gangue","name":"amphibole"},{"role":"gangue","name":"calcite"},{"role":"gangue","name":"phlogopite"},{"role":"gangue","name":"quartz"},{"role":"gangue","name":"vermiculite"}],"reference":["Moor, A.E., and Verwoerd, W.J., 1985, The olivine melilitite-\u0094kimberlite\u0094-carbonatite suite of Namaqualand and Bushmanland, South Africa: Transactions of the Geological Society of South Africa, v. 88, pt. 2, p. 281\u0096294.","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.","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: Johannesburg, Geological Society of South Africa, v. 2, p. 2173\u00962191.","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,Part 3\u0097Africa: London, The Geological Society, 372 p."]}}
url: https://mrdata.usgs.gov/carbonatite/show-carbonatite.php?rec_id=51