ID: 20
rec_id: 20
depname: Prairie Lake
deptype: 10
depage: 1069–1033 Rb-Sr, whole rock
json: {"id":"http:\/\/mrdata.usgs.gov\/carbonatite\/record\/20","type":"Feature","geometry":{"type":"Point","coordinates":[-86.7175,49.035277777778]},"properties":{"country":"Canada","cntrycd":"CNON","stprov":"Ontario","depname":"Prairie Lake","latitude":"49.0352777777778","latdeg":49,"latmin":2,"latsec":7,"longitude":"-86.7175","londeg":-86,"lonmin":-43,"lonsec":-3,"mintype":"Si-carbonatite, s\u00f6vite","oreton":"0.18","deptype":10,"niobium":"0.25","ree":"0","p2o5":"0","grades":"historic resource of mid-1960s (Reuters, 2008)","depage":"1069\u00961033 Rb-Sr, whole rock","agemy":"1051","tectset":"Mesoproterozoic Midcontinent rift system, Trans-Superior tectonic zone","rocks":"carbonatite, ijolite, malignite, pyroxenite","rocksmap":"gneiss (Archean)","orebody_fm":"circular plug","ore_a":"1.7","ore_area":"2.5","ore_b":"1.7","alttype":"fenitization","altwidth":"0","comments":"In ore: 0.9% U3O8 (Sage and Watkinson, 1991, Reuters, 2008) and 1.5\u00969.2% P2O5 (Erdosh, 1979, Resource Investor, 2008). Grades are confirmed by recent drilling.","mineral":[{"role":"ore","name":"baddeleyite"},{"role":"ore","name":"betafite"},{"role":"ore","name":"marianoite"},{"role":"ore","name":"perovskite"},{"role":"ore","name":"pyrochlore"},{"role":"ore","name":"titanite"},{"role":"ore","name":"w\u00f6hlerite"},{"role":"ore","name":"zirconolite"},{"role":"gangue","name":"biotite"},{"role":"gangue","name":"calcite"},{"role":"gangue","name":"dolomite"},{"role":"gangue","name":"pectolite"},{"role":"gangue","name":"phlogopite"},{"role":"gangue","name":"quartz"},{"role":"gangue","name":"vesuvianite"},{"role":"gangue","name":"wollastonite"}],"reference":["Chakhmouradian, A.R., Mitchell, R.H., Burns, P.C., Mikhailova, Y., and Reguir, E.P., 2008, Marianoite, a new member of the cuspidine group from the Prairie Lake silicocarbonatite, Ontario: The Canadian Mineralogist, v. 46, p.1023\u00961032.","Erdosh, G., 1979, The Ontario carbonatite province and its phosphate potential: Economic Geology, v.74, p. 331\u0096338.","Heaman, L.M., and Machado, N., 1992, Timing and origin of midcontinent rift alkaline magmatism, North America\u0097Evidence from the Coldwell complex: Contributions to Mineralogy and Petrology, v. 110, p. 289\u0096303.","Mariano, A.N., and Roeder, P.I., 1989, W\u00f6hlerite: chemical composition, cathodoluminescence and environment of crystallization: The Canadian Mineralogist, v. 27, p.709\u0096720.","Resource Investor, 2008, Nuinsco Resources Limited, 3 p.,","http:\/\/www.resourceinvestor.com\/pebble.asp?relid=39364 (last visited February 10, 2009)","Reuters, 2008, Nuinsco Resources Limited: diamond drilling to commense immediately at Prairie Lake Project, 3 p., http:\/\/www.reuters.com\/article\/pressRelease\/idUS152116+17-Jul-2008+MW20080717 (last visited February 10, 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=20