 | | Journal (article/letter/editorial) | | 1995 ) 455-488 The late Archean Hemlo gold deposit, Ontario, Canada: a review and synthesis Yuanming...Saskatoon, Sask. S7N 5E2, Canada Department of Earth Sciences, University of Western Ontario, London, Ont. N6A...5B7, Canada Received 18 March 1994; accepted 30 January 1995 Abstract The Hemlo gold deposit, northwestern...northwestern Ontario, Canada, is situated within the late Archean Hemlo--Heron Bay greenstone belt of the...central axis of the greenstone belt. The Hemlo gold deposit is located within the central metamorphic |  | | Journal (article/letter/editorial) | | com/locate/oregeorev The Hemlo gold deposit, Ontario, Canada: principal deposit characteristics and constraints...Geology Section, Ontario Geological Survey, 933 Ramsey Lake Road, Sudbury, Ontario, Canada, P3E 6B5 Received...2002 Abstract The Archean, world-class, Hemlo lode gold deposit has been overprinted by deformation and...accounts for all of the characteristics of the deposit. Most proposed models are inappropriate in terms...ratios. The deposit is spatially associated with: highstrain zones; a restraining bend in the Hemlo greenstone |  | | Report (issue) | | Energy, Mines and Resources Canada E:nergie, Mines et Ressourees Canada Canada THE ENERGY OF OUR RESOURCES...POWER OF OUR IDEAS COVER Left: Amethyst - Thunder Bay, Ontario. Specimen measures 4.5 cm across the base...no. 17206. GSC 204971-1 Geological Survey of Canada Miscellaneous Report 49 ROCKS AND MINERALS FOR... © Minister of Supply and Services Canada 1991 Available in Canada through authorized bookstore agents...bookstores or by mail from Canada Communication Group - Publishing Ottawa, Canada KIA OS9 and from. Geological |  | | Journal (article/letter/editorial) | | geochemistry of vanadian silicates in the Hemlo gold deposit, Ontario, Canada Yuanming Pan and Michael E. Fleet...of Geology,Universityof Western Ontario, London,Ontario N6A 5B7, Canada, Received March 22, 1991/Accepted...present in green mica schist from the Hemlo gold deposit, Ontario, Canada. Vanadium-rich silicate minerals...minerals include green mica (up to 17.6 wt. % V203), phlogopite (10.1 wt. % V203), pumpellyite (25.7 wt. % V203)...talc and tremolite in other lithologies of the Hemlo deposit. The principal substitution that incorporates |  | | Journal (article/letter/editorial) | | 1104-1120 Calc-SilicateAlterationin the Hemlo Gold Deposit,Ontario:Mineral Assemblages, P-T-X Constraints...Department of Geology, University of Western Ontario,London,Ontario,CanadaN6A5B7 Abstract A late calc-silicate...alterationcharacterizes the ArcheanHemlogolddepositin Ontario, Canada.Calc-silicate minerals,includingepidote-clinozoisite...variouscombinations of tremolite-actinolite, clinopyroxene,phlogopite,talc, chlorite, calcite, dolomite,microcline...fluid within a dilatantregionalplanarstructure(the Hemlo shearzone).A direct association of nativegoldgrainswith |  | | Journal (article/letter/editorial) | | Metamorphism of Hydrothermal Alteration at the Hemlo Gold Deposit, Ontario MARTIN HEILIGMANN, ANTHONY E. WILLIAMS-JONES...Street, Montreal, Quebec, Canada H3A 2A7 Abstract The Hemlo Au (-Mo) deposit is an example of atypical...north-central Ontario. The ore is shear hosted and consists primarily of disseminated native gold in several...amphibole was present prior to alteration and that gold mineralization occurred at pressure-temperature...primarily to the very high fS2 during alteration and gold mineralization, which caused iron to partition preferentially |  | | Journal (article/letter/editorial) | | OXIDE MINERALS OF THE GREEN GIANT VANADIUMGRAPHITE DEPOSIT, SOUTHWEST MADAGASCAR VERONICA E. DI CECCO§ AND...History-Mineralogy, Royal Ontario Museum, 100 Queens Park, Toronto, Ontario, M5S 2C6, Canada EDWARD T.C. SPOONER...University of Toronto, 22 Russell Street, Ontario, M5S 3B1, Canada CRAIG SCHERBA NextSource Materials Inc...Wellington Street, West #1001, Toronto, Ontario, M5H 3L5, Canada ABSTRACT Rare vanadium-rich oxide minerals...INTRODUCTION The Green Giant vanadium-graphite deposit is located in southwest Madagascar (Fig. 1), 145 |  | Fleet, Michael E., Seller, Michael H. (1997) Rare earth elements, protoliths, and alteration at the Hemlo gold deposit, Ontario, Canada, and comparison with argillic and sericitic alteration in the Highland Valley porphyry district, British Columbia, Canada. Economic Geology, 92 (5) 551-568 doi:10.2113/gsecongeo.92.5.551 | Journal (article/letter/editorial) | | Protoliths, andAlterationat the HemloGoldDeposit, Ontario,Canada,andComparison withArgillicandSericiticAlteration...HighlandValleyPorphyryDistrict,BritishColumbia,Canada MICHAELE. FLEET, • MICHAELH. SELLER,* Departmentof...Sciences, Universityof •VesternOntario,London,Ontario,CanadaN6A 5B7 AND YUANMING PAN Department of...exploration for Hemlo-type golddeposits. Argillicalteration in the Highland Valleyporphyry district, BritishColumbia...fieldfor aluminous rocksof the hanging wallof the Hemlo deposit. The geochemistry andregional occurrence of |  | | Journal (article/letter/editorial) | | vanadian allanite-(Ce) from the Hemlo gold deposit, Ontario, Canada YUANMING PAN AND MICHAEL E. FLEET...Geology, University of Western Ontario, London, Ontario N6A 5B7, Canada Abstract Allanite-(La) (containing...titanite in the main ore zone of the Hemlo gold deposit, Ontario, Canada. Allanite-(Ce) generally occurs as...The high V concentrations in the allanites from Hemlo are readily attributable to an adequate local source...mobility, titanite. Introduction THE Hemlo deposit, Ontario, Canada, is anomalously enriched in vanadium |  | | Book | | enOLOGIOAT SURVEY OF CANADA. AALFRED R C.SELWYN, C. M. G., LL.D. F.RS., Director GEOLOGICAL SURVEY...17 20 v1 GEOLOGICAL TABLE OF SURVEY OF CANADA. CONTENTS— Continued. OXYGEN saLTs—Continued...ORES—Continued. Gold ores: Goldabearing Quartzampapg ends ileus Steet ceived ssmam sits)s Gold-bearing rocks...vol hee ke hex yee oe ihe date at von Gold and silver ores : Gold and silver ores from the province of... TABLE METALS oe AND OF THEIR SURVEY OF CANADA. CONTENTS—Continued. ORES—Continued. . Tron |  | Groves, D. I., Goldfarb, R. J., Robert, F., Hart, C. J. R. (2003) Gold Deposits in Metamorphic Belts: Overview of Current Understanding,Outstanding Problems, Future Research, and Exploration Significance. Economic Geology, 98 (1) 1-29 doi:10.2113/gsecongeo.98.1.1 | Journal (article/letter/editorial) | | Economic Geology Vol. 98, 2003, pp. 1–29 Gold Deposits in Metamorphic Belts: Overview of Current Understanding... Future Research, and Exploration Significance DAVID I. GROVES,† Centre for Global Metallogeny, Department...Denver, CO 80225-0046 FRANÇOIS ROBERT, Barrick Gold of Australia Ltd., 10th Floor, 2 Mill St., Perth...Geology Program, Box 2703 (K-10) Whitehorse, Yukon, Canada Y1A 2C6 and Centre for Global Metallogeny, Department...collision has added to, or thickened, continental crust. Gold-rich deposits can be formed at all stages of orogen |  | | Book (volume) | | and Guo Jie 69 Mineralogical mapping in Jiaodong gold province, China Chen Guangyuan, Yang Zhusen and...in the laterite profile at the Igarape Bahia gold deposit, Carajas, Brazil Weisheng Zang, W.S. Fyfe and...rocks and ores of the Golden Giant gold deposit of Hemlo, Ontario, Canada Yuan Chen, W.S. Fyfe and Weisheng...evolution of the minerals in the Jinchuan Cu-Ni Deposit, Gansu Province, China Cao Yawen, Cai Jianhui...of applied mineralogy of ores from Weigang Iron Mine, China Chen Zhaoxi and Xu Zhenhong 219 CISMMI: |  | | Journal (article/letter/editorial) | | SCIENCES, QUEEN’S UNIVERSITY, KINGSTON, ONTARIO K7L 3N6, CANADA 2 DEPARTMENT OF GEOLOGY, UNIVERSITY OF...TORONTO, ERINDALE COLLEGE, MISSISSAUGA, ONTARIO L5L 1C6, CANADA Groundmass spinel grains in 46 kimberlite...aluminum-rich silicate minerals such as olivine and phlogopite in kimberlites, or pyroxene and plagioclase in...slightly lower content of potassium and much less phlogopite, and a higher content of groundmass oxide minerals...Trend 2 as due to the early crystallization of phlogopite, which reduces both Al and Mg in the melt, thus |  | | Book | | THE MINING INDUSTRY William Petruk Ottawa, Ontario, Canada 2000 ELSEVl ER Amsterdam - Lausanne - New...and to CANMET, Department of Natural Resources Canada in 1995. pilot plant tests on a wide variety...Prof G. Barbery, Laval University, Quebec City, Canada, Dr. R. Lastra, CANMET, myself and many others...metal (copper, zinc and lead) volcanogenic ores, gold ores, porphyry copper ores, iron ores, and industrial...were: R.E. Healy, Minoretek, Winnipeg, Manitoba, Canada, Dr. K. Kojonen, Geological Survey of Finland, |  | | Journal (article/letter/editorial) | | Toronto, Erindale College, Mississauga, Ontario L5L 1C6, Canada ABSTRACT A comparison is made of the major-...partitioned into a different phase, such as metasomatic phlogopite. Such Cr-rich macrocrysts are more common in...Unusually Fe- and Ni-rich macrocrysts unique to the Lace mine are from Fe-rich orthopyroxene-bearing peridotites...réparti dans une autre phase, par exemple la phlogopite d’origine métasomatique. De tels macrocristaux...inhabituels riches en Fe et en Ni provenant de la mine Lace semblent uniques; ils se sont formés à partir |  | | Book | | he has integrated experience in tectonics, ore deposit geology and mineral exploration. It is this wealth...8 The East Kemptville Sn Greisen, Nova Scotia, Canada . 4.3.9 The Brandberg West Greisen Vein Systems.... . . . . . . . . . . . . 4.4 Intrusion-Related Gold, Polymetallic and Uraniferous Vein Systems and Breccia...Scheelite Dome, an Intrusion-Related Au Deposit, Yukon, Canada . . . . . . . . . . . . . . . . . . . ...Complexes. . . . . . . . . . . . 4.6 Iron Oxide-Copper-Gold-Rare Earth Elements-Uranium Mineral Systems . . |  | | Journal (article/letter/editorial) | | overlie the cratonic basement near Hudson Bay, in the Western Canada Sedimentary Basin, and south of the exposed...the Gondwana as the cause of kimberlite magmatism (Bell et al., 2003; de Wit, 2007; Moore et al., 2008;...fellowship and grant PF-1144905 to AKA. We thank David Bell for helpful discussion. Appendix A. Supplementary...history of the Slave craton. Tectonics 32, 1066–1083. Bell, D.R., Schmitz, M.D., Janney, P.E., 2003. Mesozoic...(4.00–4.03 Ga) orthogneisses from northwestern Canada. Contrib. Mineral. Petrol. 134, 3–16. Braun, J |  | | Report (volume) | | Victoria 3053, Australia DISTRIBUTORS USA and Canada Blackwell Scientific Publications Inc PO Box 50009...from the Poohbah Lake syenite in north-western Ontario have been dated at around 2.7 Ga (Mitchell 1976)...the Poohbah Lake alkaline complex, northwestern Ontario. Can. J. Earth Sci. 13, 1456-9. SORENSEN,H. (ed...from the Poohbah Lake syenite in north-western Ontario have been dated at around 2.7 Ga (Mitchell 1976)...the Poohbah Lake alkaline complex, northwestern Ontario. Can. J. Earth Sci. 13, 1456-9. SORENSEN,H. (ed |  | | Journal (article/letter/editorial) | | sub-continental lithosphere Y. Weiss a,⁎, W.L. Griffin b, D.R. Bell c, O. Navon a a b c The Fredy and Nadine Herrmann...(SCLM) high-Mg carbonatitic HDFs trace elements phlogopite a b s t r a c t The trace elements of high-Mg...melting of average Archaean SCLM that carries phlogopite ± Fe–Ti oxides. The close correspondence between...closer similarity. Group I kimberlites from Africa, Canada, Siberia, Greenland, Finland, India and Brazil...garnet and spinel peridotite xenoliths from Siberia, Canada, Greenland and South Africa (Gre'goire et al., |  | | Book | | incurred in the machinery and the working of the mine. Sixthly, his learning must comprise Architecture...emerged in 1982 consists of eight sections: General Mine Design Considerations, Stopes Requiring Minimum...Financial Considerations, Foundations for Design, and Mine Ventilation. It has been nearly 20 years since the...acknowledged. includes revised sections on general mine design, mining methods, and foundations for design...Preface ix SECTION 1 SECTION 2 SECTION 3 GENERAL MINE DESIGN CONSIDERATIONS 1 CHAPTER 1 Underground Mining |  | | Journal (article/letter/editorial) | | Mineral Services Canada, #1300 - 409 Granville Street, Vancouver, B. C. V6C 1T2, Canada e-mail: rory.m...50% olivine, 44% orthopyroxene, 3% garnet, <1% phlogopite, trace chromite, 3% amphibole) and ROM-189 (mode:...55% olivine, 35% orthopyroxene, 5% garnet, 5% phlogopite). Most samples display the coarse-equant grain...metasomatized as reflected by the presence of phlogopite and in one case SOUTH AFRICAN JOURNAL OF GEOLOGY...financial support provided by NSF Grant EAR-9526840. David Bell, in particular, arranged the first trip by the |  | | Journal (article/letter/editorial) | | chrysotile samples are from Asbestos (Quebec, Canada), the Half Moon Bay area (California), and the Philips and...no symmetry. A. Asbestos. B. Half Moon Bay area. C. Canadian Mine. fringes occur at the locations of the...(B) splintery, and (C) fibrous materials. (Philips Mine.) Downloaded by [University of Sydney] at 07:00...only relatively few chrysotile layers. (Philips Mine.) FIG. 22. SAED pattern of the area in Figure 21...of which is inserted on the right side. (Philips Mine.) the 0kl spacings of chrysotile, is an SAED pattern |  | | Journal (article/letter/editorial) | | = whole-rock. Mg = Mg/(Mg+Fe2þ ). a Values from Bell et al. [25]. Mexico and three samples from Simcoe...resemble those obtained from mantle pyroxenes by Bell et al. [25]. The spectra of Simcoe pyroxenes, however...calculation. One of the Mexican samples (SLP-400) has phlogopite as an accessory phase, but the water content...Exceptions exist, however, most notably in Fe-rich, phlogopite-bearing SLP-400, whose orthopyroxene has 11.3%...minor phlogopite was noted in two of ¢ve xenoliths studied by Draper [18]. In Mexico, phlogopite was present |  | | Journal (article/letter/editorial) | | lower-limiting proxy is the diffusivity of Ar in phlogopite, which yields very similar or only slightly lower...70 r2 1,bl,s,q 1,bl,s,q 1,bl,s,r 1,bl,s,q Star Mine (KX27) 45 KX27–1 r4 46 KX27–7 r1 47 r2 1.39 1.49...asynchronously from 132 Ma (Lace, Voorspoed, Star Mine; Phillips et al. 1999) to 88 Ma (Kaalvallei; Viljoen...Similarly, the Natal Group comprises a foreland basin deposit on the eastern seaboard whose deposition constrains...where 40 Ar/39Ar dating of feldspar from the Okiep district in western Namaqualand, and the Jannelspan amphibolites |  | | Journal (article/letter/editorial) | | spectra, in turn calibrated against either manometry (Bell et al. 1995) or the frequency-dependent molar absorption...hydroxide groups, at levels ranging from trace amounts (Bell and Rossman 1992) up to thousands of ppm H2O (Kohlstedt...amounts of boron, fluorine, and chlorine (Hervig and Bell 2005; Hauri et al. 2006a; Hålenius et al. 2010;...olivine) megacrysts from kimberlites (Hervig and Bell 2005; Guggino et al. 2007; Mosenfelder et al. 2011;...A single exception is sample KBH-1, oriented by Bell et al. (1995). We estimate the accuracy of orientations |
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