ID: 19
rec_id: 19
depname: Nemegosenda Lake
deptype: 10
depage: 1010 K-Ar, nepheline;|1015±63 Rb-Sr isoch., whole rock
json: {"id":"http:\/\/mrdata.usgs.gov\/carbonatite\/record\/19","type":"Feature","geometry":{"type":"Point","coordinates":[-83.079444444444,48.018888888889]},"properties":{"country":"Canada","cntrycd":"CNON","stprov":"Ontario","depname":"Nemegosenda Lake","latitude":"48.0188888888889","latdeg":48,"latmin":1,"latsec":8,"longitude":"-83.0794444444444","londeg":-83,"lonmin":-4,"lonsec":-46,"discdate":"1956","mintype":"s\u00f6vite","oreton":"20","deptype":10,"niobium":"0.47","ree":"0","p2o5":"0","grades":"Sage and Watkinson (1991); Woolley (1987)","depage":"1010 K-Ar, nepheline;|1015\u00b163 Rb-Sr isoch., whole rock","agemy":"1010","tectset":"Canadian shield Superior province; Kapuskasing structural zone; south end of regional gravity high","rocks":"carbonatite, fenite, gabbro, jacupirangite, malignite, nepheline syenite, pyroxenite","rocksmap":"gneiss (Archean)","orebody_fm":"plug and sheets at NE margin of syenite oval complex 7 x 5 km","ore_a":"3","ore_area":"1.4","ore_b":"0.6","alttype":"fenitization","altwidth":"0","comments":"Historic resources are shown. Sarissa Resources, Inc. reported from 15 additional drillholes average 0.52% Nb2O5 and 0.018% Ta2O5 (Reuters, 2008).","mineral":[{"role":"ore","name":"apatite"},{"role":"ore","name":"barite"},{"role":"ore","name":"fluorite"},{"role":"ore","name":"galena"},{"role":"ore","name":"magnetite"},{"role":"ore","name":"pyrochlore"},{"role":"ore","name":"sphalerite"},{"role":"ore","name":"zirkelite"},{"role":"gangue","name":"aegerine"},{"role":"gangue","name":"na-amphibole"},{"role":"gangue","name":"biotite"},{"role":"gangue","name":"k-feldspar"},{"role":"gangue","name":"nepheline"},{"role":"gangue","name":"melanite"},{"role":"gangue","name":"wollastonite"}],"reference":["Erdosh, G., 1979, The Ontario carbonatite province and its phosphate potential: Economic Geology, v.74, p. 331\u0096338.","Hawkins, W., 2008, Preliminary analysis and recommendations for National Instrument 43-101 compliant reserve estimate on the Nemegosenda Lake Property, Porcupine mining district, Ontario, 27 p.,","http:\/\/www.sarissaresources.com\/media\/hawkins_report.pdf (last visited February 10, 2009)","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.","REUTERS, 2008, Assays from Nemegosenda adit confirm presence of Niobium, Tantalum and Rare Earth element mineralization, 4 p.,","http:\/\/www.reuters.com\/article\/pressRelease\/idUS121260+21-Jul-2008+MW20080721 (last visited February 11, 2009)","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.","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=19