ID: 16
rec_id: 16
depname: Lackner Lake
deptype: 10
depage: 1090±25 K-Ar, quartz syenite; 1138±28 and 1078±11, Rb-Sr isochron
json: {"id":"http:\/\/mrdata.usgs.gov\/carbonatite\/record\/16","type":"Feature","geometry":{"type":"Point","coordinates":[-83.165,47.747777777778]},"properties":{"country":"Canada","cntrycd":"CNON","stprov":"Ontario","depname":"Lackner Lake","altname":"Nemogos","latitude":"47.7477777777778","latdeg":47,"latmin":44,"latsec":52,"longitude":"-83.165","londeg":-83,"lonmin":-9,"lonsec":-54,"mintype":"s\u00f6vite","oreton":"113","deptype":10,"niobium":"0.21","ree":"0.12","p2o5":"3.19","grades":"calculated from Sage and Watkinson (1991)","depage":"1090\u00b125 K-Ar, quartz syenite; 1138\u00b128 and 1078\u00b111, Rb-Sr isochron","agemy":"1090","tectset":"Canadian shield Superior province; Kapuskasing structural zone; south end of regional gravity high","rocks":"carbonatite, ijolite, nepheline syenite, syenite","rocksmap":"gneiss (Precambrian)","orebody_fm":"carbonatite lens and dikes in circular alkaline complex 6 km in diameter","alttype":"fenitization","altwidth":"0","comments":"Rare earths mostly contained in apatite of Zone no. 6 (Sage and Watkinson, 1991).","mineral":[{"role":"ore","name":"apatite"},{"role":"ore","name":"fluorite"},{"role":"ore","name":"magnetite"},{"role":"gangue","name":"aegerine-augite"},{"role":"gangue","name":"amphibole"},{"role":"gangue","name":"biotite"},{"role":"gangue","name":"calcite"},{"role":"gangue","name":"cancrinite"},{"role":"gangue","name":"fayalite"},{"role":"gangue","name":"pyrophyllite"},{"role":"gangue","name":"riebeckite"},{"role":"gangue","name":"zeolite"}],"reference":["Erdosh, G., 1979, The Ontario carbonatite province and its phosphate potential: Economic Geology, v.74, p. 331\u0096338.","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.","Sage, R., and Watkinson, D.H., 1991, Alkalic rock-carbonatite complexes of the Superior structural province, northern Ontario, Canada: Chronique de la Recherche Miniere, no. 504, p. 5\u009619.","Singer, D.A., 1998, Revised grade and tonnage model of carbonatite deposits: U.S. Geological Survey Open-File Report 98-235, 8 p.","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=16