Ontario: aeromagnetic maps of carbonatite
Transcription
Ontario: aeromagnetic maps of carbonatite
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Renseignements : POUR PLUS DE RENSEIGNEMENTS SUR VEUILLEZ VOUS ADRESSER À : la reproduction du contenu Services de publication du MDNM l'achat des publications du MDNM Vente de publications du MDNM les droits d'auteurs de la Couronne Imprimeur de la Reine PAR TÉLÉPHONE : Local : (705) 670-5691 Numéro sans frais : 1 888 415-9845, poste 5691 (au Canada et aux États-Unis) Local : (705) 670-5691 Numéro sans frais : 1 888 415-9845, poste 5691 (au Canada et aux États-Unis) Local : 416 326-2678 Numéro sans frais : 1 800 668-9938 (au Canada et aux États-Unis) PAR COURRIEL : [email protected] [email protected] [email protected] ^s s .f fc ^ '(n 56 0 00 /A A ^ Ontario Department of Mines and Northern Affairs a ^ PRELIMINARY MAP No.P.452 (REVISED) s S \ ^-/ /^? ffliW^ fflm ^ - j.i-\* g; \ \ x r y.-?*. LAKE NEMEGOSENDA LAKE o t" Sudbury 223'G. 2233C District of Kenora (Particia Portion.) r, 3693C. 3684C. 3692G V, s si MARGINAL 54 045' CARB NISKIBI LAKE DIsLrlcL ul Ktiiurj (Patricia Portion) AEROMAGNETIC MAPS OF CARBONATITE-ALKALIC COMPLEXES IN ONTARIO In the last ten years carbonatite-alkalic complexes have become Increasingly important as producers or potential sources of niobium, rare-earths, uranium, thorium, zirconium t phosphate, vermiculite, iron, titanium, copper, and nickel. In many complexes the orebodies are very large. Three of the more Important world producers are: Palabora T Transvaal (see Table 1) containing 315,000,000 tons of ore grading D.7% Cu, with by-product magnetite, phosphate, and in another orebody vermiculite; Mountain Pass. California in which the Sulphide Queen carbonatite body contains in excess of 25,000,000 tons grading S-10% rare-earth oxides; and Araxa. Minas Gerais, Brazil with an orebody of 300,000,000 tons grading 3. 3?B Nb205. In Canada the only producer is St. Lawrence Columbium and Metals Corp. from the Oka complex in Quebec (see Table 1). SEABROOK LAKE FIRESAND RIVER District oI Algoma 2191G. 2192G District of Algoma 2228G. 2229C •'S '-O J& ^UsTlV- ^ \ ^4 Although the classification of carbonatite-alkalic complexes is controver sial, both Heinrich (1966, p.11) and Tuttle and Gittins (1966, p.417-541) present data indicating the occurrence of over 200 complexes in the world with about L10-120 in Africa, over 40 in Eurasia, and 10 or more in South America. The writer lists 43 in Ontario (TebLe 2) and their location is shown on the adjoining map. Aeromagnetic maps of 34 of these are shown in the inset maps, all at the scale of l inch to 2 miles, unless otherwise indicated. 52^55' LX ^i HUDSON BAY A number of mafic alkalic complexes, such as Port Coldwell, Killala Lake, Drowning River, Mammamattawa and Squirrel River are included in Table 2 because they are related in origin and age to the carbonatite-alkalic complexes and have similar outlines on the aeromagnetic maps. Little is known about the geology of many of the complexes (e.g. Niskibi Lake, Gooseberry Brook, Wapikopa River, Lawashi River, Poplar River, Nagagami River) revealed by the aeromagnetic surveys but they are included In Table 2 at the present time. For the remainder of Canada, Tuttle and Gittins (1966) describe 2 in Quebec and possibly 4 in British Columbia. f" Niskibi Lake •; # GOOSEBERRY BROOK District of Kenora (Patricia Portion) rjTE -.-r UAKBUWAMIb-ALKALIi; COMPLEXES IN ONTARIO BIG BEAVER HOUSE \ 384 30. 36Viti 93 9G 3W •. ?k tl—tL 5Z0 5C'M ^T) IV -~\M ^,j~^ •^ \ ^ WfS '^-r x ;is:v S^1 ^ ^ yy 4-^A 'l '?- M" ^ ^!? T^ \ POP1AR RIVER District of Kenora (Patricia Portion) 381 f.C •51 U 40' l Martison Lake Cochrane j Nagaganii River Cochrane Squirrel River \ N, \f Cochrane ap Cochrane Nb *Coaif e v- Sumach Kenora Kenora (P.P.) Mb, Cu, ap Nh, Ce p La, verrn Kenora (P.P.) GooHtbtirrj' Brcjyk Kenora (F. P. ) , Lawashi River Kenora (P.P. ) 1 Niakibi Lake Kenora (P.P. 3 i iU Poplar River Kenora (P.P. J 1 Schryburt Lake Kenora (P.P.) i Wapikopa Rivor Kenora (P.P. ) , I PI *B-rent Nipissing *Burritt Island Nipissing enango tlnuqreau Firesand Rive ' - Waua\ F^ Ne m eg li BotdEn a~Nb',u;rh, Lackner * ALBANY FORKS District of Cnchrnnp JB9^iG POOHBAH LAKE District of Katny River c-—-— /.S" 20' Vt Rainy River - - Borden Sudbury Lackner Lake Sudhury Fe , U, ap, Kb, Ce Sudbury Nb , tt, Th , Fe , ap , Co 1010 Shenango SlttJbury Siidbtiry verm * Chipinaii Lake Thunder Bay Nb 'l"'\l^\ ''J Killala Lake Thunder Bay Cu, Hi ISvJ y '-f[ X ' Cu, Fe(Ti) Prairie Lake *Sturgeon Lalu; Thunder Bay fi, I* vx \ W ^,v Nfed r ;\M 'C. ^ ^\ * ^ illustrated by an inset map. ' -JH3J* "V*- a^x'w^ j ^i^AlCalVaiider \' 555p. Lumbers, S.H. 1970: Geology of the North Bay area; Ontario Dept. Mines, Open File Kept. 5045, 187p. (see p,84-101, 148-158) '^1 '-~?*V* Parsons, G.E. 1961: Niobium-bearing complexes east of Lake Superior; Ontario Dept. Mines, Geol. Rept. No.3, 73p. 1 ^^ ' ' j Rowe, Robert B. IL, 1958: CALLANDER BAY District cf Parry Sound GSC 147 7G Brent n\ m FaLte' Tablel -.\i ^ p(fl r.'7t'(l /vT v- l JffiS^ J5vS Consolidated Morrison Explorations Ltd. Ore Res: 10,000 tons/vert, ft. grading 0.827, Nb2 0s (Northern Miner, June 18, 1970). LACKNER ^ Ore Res: i&U 80,000,000 tons D.25% Nb 2 0 5 . Calcite Zone: . ,.. .,..... Uranium 880,000 tons Q.9% Nb2 0 5 . 760,000 tons 0.237. Nb2 0 5 . MANITOU ISLANDS Nova Beaucage Mines Ltd. . . . . . . . Vermiculite • R VERiTlNDIM-J? RESERVE' Ore Res: jsJ S Ore Res: 7 1,893,000 tons D.049% U 30 a and G.86% Nb2 0 5 2,962,000 tons 0.0417. U3 0 g and Q.69% Nb2 05 Idle since 1956. St. Lawrence Columbium and Metals Corp. OKA,QuebE f/^ 7/-' Nos. 3-4 Zones: 37,000,000 tons 21.37* apatite, 13.77* magnetite, and 0.1987. Nb2 05 . No. 8 Zone: ... ....... Titanium n-^^ Multi- Minerals Ltd. No. 6 Zone: 5,024,250 tons 69.67. magnetite, 21.97. apatite, and 0.1731 Nb205 . ARGOR District of Cochrane 23UG ........... Thorium ORE RESERVES AND PRODUCTION ARGOR ^ 500 50- ,f( ............ Nickel District ol Thunder 2161G Niobium (columblum) deposits of Canada; Geol. Surv. Canada, Econ. Geol. Series No.18, 108p. Tuttle, O.F. and Gittins, J. (Editors) 1966: Carbonatites; Interscience Publishers (John Wiley and Sons Ltd.), 591p. S*?* * Niobium (Columblum) CHIPMAN LAKE IAETAR'A: i IZL .............. Iron j^i Ss O'l M li y.&t-L . . . . . . . . . Lanthanum t?/ LITTLE DROWNING RIVER DitLriijt ui Cochrane 3893G Heinrich, E. Wm. 1966: The geology of carbonatites; Rand McNally ft Co., XT**™ . . . . . . . . . . . . Copper ^/•tfe^ .ic AM ^ i .......... Fluorite \' v^ *i' IB^TJttVjs. ............ Cerium Vy iw \ . . . . . . . . . . . Apatite ^ flfci METAL AND MINERAL REFERENCE ^ DISTRiCT *7, \^ ^J? ' # r-if^/4 -J oo - S ^^Sfli 1112 Gittins, J., Maclntyre, R.M., and York, D. 1967: The ages of carbonatite complexes in eastern Canada; Canadian J. Earth Sci., Vol.4, p.651-655. i-X-. 11 ^ LAKE NIPISSING Jtf^ X .-Cre*k ) ^' fa tfb, Fe(Ti) , ap 4-;'ifA 48", 'CALLANDER BAY Thunder Bay Bennett, G., and Riley, R.A. 1969: Carb Lake carbonatite; p,40-43 In Operation Lingman Lake, Ontario Dept. Mines, Misc. Paper 27, 52p. 1090 1560 Thunder Bay Paper 10, 9gp . (see p.21-22, 66-70, 71-72) x S Geology and mineral possibilities in northern Patricia district, Ontario; Ontario Dept. Mines, Misc. Paper 28, 54p, (see p,16, 25, 27, and 38) Bennett, G., Brown, D,D,, George, P.T., and Leahy, E.J. 1967: Operation Kapuskasing; Ontario Dept. Mines, Misc. MANITOU ISLANDS District of Kipissing G3tJ 1487G, 1488G 560 tfeneiiusenda Lake :^^aa^^^^e. -i ^ LAKE Poohbah Lake '^I'&ait Nb Fe , Sb , ap Ce , f 1 - 'l/'vK'i .j) Seabrook \ Lake Nipissing Nipissing Kb 'i /Ja.Hf" 1"1""'* ^ 1969; Parry Sound FWSiklft" Ayres, L.D., Bennett, G., and Riley, R.A. Nh, ap Tou-nship 107 Cl 1 ,' SELECTED BIBLIOGRAPHY - Callander flay P^M,L,S . Ea rd Port Coldwell —^ - ' ^N^V WI! ^LarJwL*^ o-1 - Kb, U, ap 1| Virsinia- Joint aeromagnetic surveys of northern Ontario during the years 1959-1967 by the Ontario Department of Mines and the Geological Survey of Canada have revealed numerous, previously unknown complexes; a number of these arc under a cover of Paleozoic sedimentary rocks in the James Bay Lowland. One of these, the Argor carbonatite body (Consolidated Morrison, 1966- ), contains an economically significant tonnage of Nb2 05 as uranium-free pyrochlore (see Table l) Nb, ap HipisBing V In Ontario some occurrences have been known for many years but were not recognized as carbonatite-alkalic complexes at the time of their discovery. The recognition of these complexes in the 1950's resulted in the exploration of the Firesand (Algoma Ore Properties, 1951-8), Manitou Islands (Beaucage, 1952-6, see Table l),Nemegosenda (Dominion Gulf, 1954-8), Lackner (Multi-Minerals, 1954-8, see Table 1), Clay-Howells (Steel Co. of Canada, 1954-5), Cargill (Continental Copper, 1954-7, 1967), Chipman Lake (1954-5), Iron Island (Nipiron, 1952-4), and more recently, Big Beaver House (Many Lakes, 1962), Port Coldwell (Anaconda, 1962- ), Carb Lake (Big Nama Creek and Larandona), Albany Forks, Drowning River, Mammamattawa, and Squirrel River (Keevil Mining Group). The ages of the carbonatite-alkalic complexes in eastern Canada (Gittins et al. 1967} fall into four groups. These are 125, 565, 1075, and 1700 m.y., with a possible fifth at 1560 in.y. Niobium is found In carbonatites of each age group. Manitou Islands w'^.rL1^ *T-^—f (O* * b,Fe(Ti) 1 1QD5 | ^/Uy ^J.' i ^"""^"^^I m Iron Island Many of the complexes have been found by aeromagnetic or aeroradiometric surveys by mining companies or government agencies. The complexes are indicated on aeromagnetic maps {see inset maps) by circular, oval, elliptical, crescentshaped or horseshoe-shaped anomalous areas. In the simplest complexes carbonatite cores show as a central magnetic low, and surrounding concentric highs may be caused by either magnetite-bearing carbonatite or rings of alkalic rock. More complex rock relationships and mineralized bodies containing magnetite as an essential mineral are revealed by various lenticular, high anomalous areas. Because many carbonatlte-alkalic complexes are poorly exposed detailed ground magnetometer surveys combined with the known distribution of boulder erratics have proved especially valuable in delineating the best areas for exploration by diamond drilling. Moreover, scintillometer surveys are also effective tools in exploration because of the radioactivity commonly associated with pyrochlore mineralization. - 52 Big Beaver House Carb Lake ^, 1695 Kb , *Valetitlne Tp. 1 ^ ;^ m *^ S r i ea *uwBrBne Prairie r: 'c Cochrane Cochrane \ i) "i-, ' S0 | ," * WAPIKOPA RIVER District of Kenora (Patricia Portion) -l -' ^ ^ *KingEisher River Kast Cochrane i C Nb *??^ Cochrane Little Drowning River \ y3 i AGoldray Valentine Tp. Kingfisher River West Mammamattawa . j5 f \ KK 1 - ^* ., 1 Fa \^0 Fe.Nb 1655 Cochrane \ 4 Nb Cochrane Drowning River *Goldray *^ Little A Drowning River Drowning River 4 \ Fe j Kingfisher R.Wes*4 Kin9fisher R-Eas1 Mammamattawa Alagagam Coth-raiK 107 1 - 1010 y""/1 . . \ Fe , Nb 1740 C^ no"T^^ ^ - Cochrane Fe , Nb : Poplar River Csrletnn .OWNSHIP District of Sudbury GSC 1524G 1 54" 1 1 Cu, Fe(Tl) ^ Lawashi f River y ^, 1103 Cochrane 1 District of Kenora (Patricia Portion) 93 3G ^ Hb Cochrane SCHRYBURT LAKE ^1 Algaroa Clay-Howalls 3 /GUV ^ Se a brook Lake Cflrgl 1 1 V, l a* api sk a l LAWASHI RIVER Di9trict of Kenora (Patricia Portion) 2298G ltX(8 ) uV x- Nb. •p V\ Schryburt* vf Algoma Albany Forks O* X- Firesand River *EaS r.vlew •C ~* 1 Ds;or Mi-rai 2ation Am ave 1 Name \~\ /f^ 'H' a Gooseberry Brook District of Kenora (Partricia Portion) 3g NOTES 3,125,000 tons aver. 0.48770 Nb2 05 (Oct. l, 1969) Production 12 mos. to Sept. 30: 1964 1965 1966 1967 1968 1969 1969/1970* J 2 ,, KINGFISHER RIVER WEST strict of f.nchrmle 3892C. 3B93G P 45DOD' M T^-S. Ae) X O-i A ^ :t^ S Tons milled Niobium pentoxide, Ibs. Production revenue, S Average per ton, $ ^4 321,585 383,553 406,698 369,642 360,194 475,201 350,762 2,091,725 2,164,443 2,203,985 2,328,638 6.52 2,647,667 3,188,114 2,368,225 2,799,982 2,005,989 1,966,937 3,059,052 3,107,514 2,461,000 2,650,794 7.85 7.57 5.46 6.53 7.56 6.53 ttZ PRAIRIE LAKE District oC Thunder Bay 2H8G MAMMAMATTAWA District of Cochrane 39 UC PALABDRA. Transvaal Ore Res: n; •/j 315,000,000 tons aver. 0.697, Cu (1963) 80,000,000 tons vermiculite (to 70 feet, 307, ree.) Production Y/rYs:^. •^^^i- m^•j^- r*- '^S) *~ ^ *6 months Palabora Mining Co. Ltd. Copper (99.497, Cu)* Magnetite cone. (66.l7,Fe, 0.88?. TI02 )* Sulphuric Acid (95.37. H 2 S04 )* Vermiculite (91. IE Verm.)* 1966 1967 1968 1969 short tons 68,276 347,405 53,254 113,732 short tons 84,370 961,556 109,873 110,840 short tons 79,433 800,505 106,849 121,298 short tons 85,198 1,137,908 111,096 141,963 *1969 values i' s/ •^ \ .'49010' 50 D 20' ARAXA Gerais, Brazil Companhia BrasMeJra de Metalurgia e Mineracgo (CBMM) Production 1966 Niobium pentoxide , Ibs. ( in pyrochlore concentrates (averaging 591 6,210,909 1967 6,017,103 1968 6,502,269 -:-Smf SOURCES OF INFORMATION DROWNING RIVER District of Cochrane 3893G. 3894G, 39I6G. 39i-G ODMNA 4640 KILLALA LAKE District di" Tliuiwer Bay 2U8G, 2158G PORT COLDWELL 6 Mil District of Thunder Bay 2146G, 2147G, 2156G, 2157C MARTISON LAKE District of Cochrane J9&CC NAGAGAMI RIVER District of Cochrane 3913G SQUIRREL RIVER ntscrlcc of Cochrane Compilation by J. Satterly, 1968; revised with additions 1970. Aeromagnetic maps of Ontario Department of Mines - Geological Survey of Canada, and Geological Survey of Canada. Ontario Department of Mines files. Palabora Mining Company, Limited, annual reports. St. Lawrence Columbium and Metals Corporation, annual reports. United States Bur. Mines, Mineral Trade Notes, Vol.66, No.l, Jan. 1969, p.ft; Vol.66, No.12, Dec. 1969, p.10. (Brazil) Base map directly from Ontario Department of Mines map 2190. First edition, 1968. Second edition, revised and issued 1970. 1969 6,667,000