 | | Journal (article/letter/editorial) | | Laboratory, University of Toronto, Toronto, Ontario, Canada With 6 Figures Received December 10, 1986;...in the Abitibi greenstone belt in northern Ontario, Canada. The occurrence of "invisible gold" of Cenozoic...describe aspects of gold mineralization from these Ontario mines and from selected analogous sites elsewhere...briefly compared with features of the mine geology. Although no mine generates carbonaceous ores alone,...of such ores varies widely from mine to mine, and district to district. Questions remain, particularly |  | | Journal (article/letter/editorial) | | 2002; Jiang et al. 2002), the Kidd Creek Cu–Zn–Pb–Ag VMS deposit in Ontario (Slack and Coad 1989), the Broken...quartz–tourmaline vein (leftcenter), Geevor tin mine, Cornwall, England. (B) Finegrained tourmaline intergrown...with zoned cassiterite and quartz, South Crofty tin mine, Cornwall. Abbreviations: Cst, cassiterite; Qtz...gold-bearing quartz–tourmaline extension vein, Sigma gold mine, Québec (scale is in centimeters). (B) Gold grains...with tourmaline (black) in quartz gangue, Sigma mine. Abbreviations: Au, gold; Qtz, quartz; Tur, tourmaline |  | | Report (issue) | | GOVERN YOUR USE OF THIS DOCUMENT Your use of this Ontario Geological Survey document (the “Content”) is governed... copyright is held by the Queen’s Printer for Ontario. It is recommended that reference to the Content... . ; Ontario Geological Survey, ...670-5691 Toll Free: 1-888-415-9845, ext. 5691 (inside Canada, United States) Local: (705) 670-5691 Toll Free:...(inside Canada, United States) Local: (416) 326-2678 Toll Free: 1-800-668-9938 (inside Canada, United |  | | Report (issue) | | Geological Survey of Canada Miscellaneous Report 57 Cobalt – Belleterre – Timmins Ontario and Quebec Ann...Ann P. Sabina 2000 Geological Survey of Canada Miscellaneous Report 57 ROCKS AND MINERALS FOR THE COLLECTOR...Belleterre – Timmins Ontario and Quebec Ann P. Sabina 2000 ©Her Majesty the Queen in Right of Canada, 2000...Available in Canada from Geological Survey of Canada offices: 601 Booth Street Ottawa, Ontario K1A 0E8 3303-33rd...for reference in selected public libraries across Canada Cette publication est aussi disponible en français |  | | Journal (article/letter/editorial) | | 3450 University Street, Montreal, Quebec H3A 2A7, Canada Abstract The composition of tourmaline in the...colors and compositions of tourmaline, ranging from dravite to schorl, are present in the deposit, but the...couleurs et compositions de tourmaline, variant de dravite à schorl, sont présentes dans ce gisement, mais...map of the southwestern part of the San Rafael district (modified after Arenas 1980). tourmaline in...crystallization of the pluton. It is similar to blue dravite that 349 replaced cordierite in Li-poor granitic |  | Yu, Miao, Feng, Cheng Y., Mao, Jing W., Zhao, Yi M., Li, Da X., Zhu, Yong F. (2017) Multistage Skarn-Related Tourmaline From the Galinge Deposit, Qiman Tagh, Western China: A Fluid Evolution Perspective. The Canadian Mineralogist, 55 (1) 3-19 doi:10.3749/canmin.1600043 | Journal (article/letter/editorial) | | tourmaline composition in both rock types is within the dravite–uvite solid solution. Some TourI crystals show...uvite cores (Gen-1) are overgrown by second-stage dravite rims (Gen-2). Some Tour-I crystals also show overgrowth...Tagh Orogen (Fig. 1) (Yu et al. 2013). The ore district is buried under Quaternary sediments to an average...0.091 0.869 0.091 1.000 0.000 0.445 0.033 ALG dravite 6.012 0.000 3.000 5.384 0.616 0.040 0.717 0.004...Group Tour-II are intermediate members of the dravite-uvite solid solution series enriched in Fe (Fig |  | | Journal (article/letter/editorial) | | and includes the giant ore bodies at Kidd Creek and Sullivan (Canada), Broken Hill (Australia), and Ducktown...where R is predominantly Fe 2+ in schorl, Mg in dravite, and (A1 + Li) in elbaite. Na may be partially...massive-sulfide tourmalines fall mainly within the schorl-dravite solid solution series, with a tendency for Mg-rich...have compositions intermediate between schorl and dravite (Ethier and Campbell 1977; Appel and Garde 1987;...particular, two analyses of a sample from the Ore Knob mine, North Carolina (no. 11119/29), yield 6liB values |  | | Journal (article/letter/editorial) | | and glacial sediments of the Val-d'Or district (Québec, Canada): Applications to mineral exploration...and glacial sediments of the Val-d'Or district (Québec, Canada): Applications to mineral exploration...and glacial sediments of the Val-d’Or district (Québec, Canada): applications to mineral exploration...géologique, Université Laval, Québec, QC G1V 0A6 Canada 2 Centre E4m – Centre de recherche sur la géologie...Université Laval, of 1 ro Québec, QC G1V 0A6 Canada re -p * explomin@ggl.ulaval.ca; Tel : 418-656-2131 |  | Kerrich, R., Fryer, B. J., King, R. W., Willmore, L. M., van Hees, E. (1987) Crustal outgassing and LILE enrichment in major lithosphere structures, Archean Abitibi greenstone belt: evidence on the source reservoir from strontium and carbon isotope tracers. Contributions to Mineralogy and Petrology, 97 (2) 156-168 doi:10.1007/bf00371236 | Journal (article/letter/editorial) | | University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N OWO 2 Department of Earth Science, Memorial...Newfoundland, Canada AIB 3X5 3 Department of Geology, University of Western Ontario, London, Ontario, Canada N6A...N6A 5B7 4 165 Tamarack Street, Timmins, Ontario, Canada P4N 6P7 Abstract. Major structural discontinuities...(Noranda), and 0.7013 to 0.7015 (Kirkland Lake). At Timmins, on the PD fault, 87Sr/86Sr initial ratios cluster...d'Or in the east to their western extremity near Timmins, were chosen for detailed Sr and C isotope analysis |  | Griffin, William L., Slack, John F., Ramsden, Anthony R., Win, Tin Tin, Ryan, Chris G. (1996) Trace elements in tourmalines from massive sulfides deposits and tourmalinites; geochemical controls and exploration applications. Economic Geology, 91 (4) 657-675 doi:10.2113/gsecongeo.91.4.657 | Journal (article/letter/editorial) | | arein ore-related tourmaline samples fromKiddCreek(Ontario),Broken Hill (Australia), andSazare(Japan). Tourmaline...al. (1990a,1990b). Archcan lodegolddeposits in Canada wereanalyzed byKing areasextracted et al. (1988)andKing(1990)for...othertraceelementsin the CreekCu-Zn-Pb-Ag deposit, Ontario,ispresented elsewhere thin section glasses weremadeusingthe...granulite, generally withac- from the Kidd Creekmine (Ontario),the Sullivanmine (Britcompanying polyphase...recrystallized duringregional (and from the Ore Knob mine (North Carolina) and the Prieska in onecasecontact) |  | | Journal (article/letter/editorial) | | the Sullivan Pb-Zn-Ag deposit (British Columbia, Canada). They approximate the Mg-equivalent of foitite...Mn enrichment, hydrothermal alteration, Sullivan mine, Pb-Zn-Ag deposit, British Columbia. Introduction...compositional varieties in nature are Na- and Mg-rich dravite, Naand Fe-rich schorl, Ca- and Mg-rich uvite, and...solid-solution series: (Na-Fe) schorl-(Na-Mg) dravite and (Na-Mg) dravite-(Ca-Mg) uvite (Ethier and Campbell, 1977;...tourmalines from the hanging-wall belong to the dravite-uvite solid solution series (Jiang, 1995). Tourmalines |  | Baksheev, Ivan A., Yu Prokof'ev, Vsevolod, Zaraisky, Georgii P., Chitalin, Andrey F., Yapaskurt, Vasilii O., Nikolaev, Yuri N., Tikhomirov, Petr L., Nagornaya, Ekaterina V., Rogacheva, Lubov' I., Gorelikova, Nina V., Kononov, Oleg V. (2012) Tourmaline as a prospecting guide for the porphyry-style deposits. European Journal of Mineralogy, 24 (6) 957-979 doi:10.1127/0935-1221/2012/0024-2241 | Journal (article/letter/editorial) | | Catavi, Bolivia; Taronga, Australia; East Kemptvile, Canada; Mramorny cluster, Russia). Tourmaline is gangue...deposits [(apfu): 1.92 at the Coxheath deposit, Canada (Lynch & Ortega, 1997), 1.89 Bajan-Ula, Russia...of the propylitic tourmaline along the schorl-dravite composition range and black absorption colour....tourmaline from the phyllic zone are below the schorl-dravite range indicating indirectly the predominance of...tourmalines. These tourmalines follow the ‘‘oxy-dravite’’ - povondraite join, implying predominant O2 |  | | Journal (article/letter/editorial) | | unmixing of a Ti-Fe-Mn bearing precursor mineral. Dravite-rich tourmaline with Fe/(Fe÷Mg) ratios around 0...0.43 and 0.62, respectively. It is argued that dravite-rich tourmaline (or another B-rich precursor mineral)...mineral) is of premetamorphic origin. This dravite-rich tourmaline recrystallized during high-grade metamorphism...pyrrhotite and quartz (Qtz). e Granular aggregates of dravite-rich tourmaline (Tur) in sphalerite matrix. Sphalerite...solid solution, Gah Gahnite, Tur Tourmaline, Drav Dravite-rich tourmaline Magnetite occasionally forms subhedral |  | | Journal (article/letter/editorial) | | tourmalines are intermediate members of the schorl-dravite solid solution series. Plots involving FeO, MgO...(1993) in Nagpur district, India, and by Slack et al. (1993) in the Broken Hill district, Australia. Whole-rock...- 5 Origin of the tourmalinites avite \--" Dravite vlte AlsoFe(tot)so Also Mgso Uddicoatite Ca... VT series ( Gold veins ) 4 u . " v ~, ~ ~- Dravite Mg Fig. 8a, b. Classification of chemical compositions...replacement origins for tourmalinites in the Broken Hill district, Australia. In the Bin Yauri area, the formation |  | | Journal (article/letter/editorial) | | exploited by a series of tunnels and a local government mine start-up was projected for 1989 and 1990, but all...development and mining activity stopped and the mine closed at the end of 1989. Introduction T H E BIELUWUTU...Geology of the Bieluwutu district Tectonostratigraphic units in the Bieluwutu district mainly comprise a volcanosedimentary...are distributed east and southeast of the copper district. The spatial and exact temporal relations of the...Features of the Copper Orebodies The Bieluwutu district comprises a north ore zone, an east prospect, |  | | Journal (article/letter/editorial) | | corresponding exchange vectors End member Formula Schorl Dravite Elbaite Liddicoalite Uvite Feruvite Buergerite...geochemical environment exist, for example Mg-rich dravite accompanies exhalites, whereas Fe-rich schorl correlations...substitution in the Y site of Fe and Mg causes the schorl-dravite series. The most frequently occurring end-member...that is schorl-dravite and schorl-elbaite. As a miscibility gap occurs between dravite and elbaite, tourmalines...widespread in natural tourmalines from the schorl-dravite series. Studies on this subject indicate that proton-loss |  | | Report (volume) | | Survey of Canada Miscellaneous Report 77 Kirkland Lake – Rouyn-Noranda – Val-d’Or, Ontario and Quebec...Quebec Ann P. Sabina 2003 Geological Survey of Canada Miscellaneous Report 77 ROCKS AND MINERALS FOR THE...Val-d’Or, Ontario and Quebec Ann P. Sabina 2003 ©Her Majesty the Queen in Right of Canada, 2003 Catalogue...Available in Canada from Geological Survey of Canada offices: 601 Booth Street Ottawa, Ontario K1A 0E8 3303-33rd...for reference in selected public libraries across Canada Cette publication est aussi disponible en français |  | Jiang, S. -Y., Palmer, M. R., Li, Y. -H., Xue, C. -J. (1995) Chemical compositions of tourmaline in the Yindongzi-Tongmugou Pb-Zn deposits, Qinling, China: Implications for hydrothermal ore-forming processes. Mineralium Deposita, 30 (3) 225-234 doi:10.1007/bf00196358 | Journal (article/letter/editorial) | | tourmalines studied here belong to the schorl-dravite series. M o s t are of hydrothermal origin with...mineral deposits are part of the largest base metal district in China. T o u r m a l i n e occurs in a variety...Devonisn Carboniferous Intrusiverocks F-~ Pb-Zn mine Fig. 1. A Geographic and geologic setting of the...sample Zn-3 scapolite-biotite rock from the Tongmugou mine (field of view = 0.22 mm). D Detrital tourmaline...in sample Ag-10 jasperiod rock from the Yindongzi mine (field of view --: 0.05 mm). D Detrital core; R |  | | Journal (article/letter/editorial) | | mineralization. Tourmalines from the ore bodies are dravite with Fe=(Fe Mg) ratios of 0.09 0.31 and Ca=(Ca...parallel to the main fault (Luyingtang Fault) in the mine area (Figs. 1 and 2). The migmatites display a fault...abundant and widespread throughout the Yunlong district. In general, tourmaline occurrences can be grouped...crosscut by quartz (Fig. 3A), and Mg-rich tourmaline (dravite) cut by Fe-rich tourmaline (schorl) was also observed...tourmalines from the Yunlong tin deposit belong to the dravite-schorl series (Table 1, Figs. 4 and 5). Table 1 |  | | Journal (article/letter/editorial) | | metasomatic anhedral dravite, which is commonly oscillatory zoned; some crystals have dravite cores and Mg-foitite...than schorl and dravite in similar scheelitebearing veins (Rebordelo), and than dravite and Mg-foitite...veins (Panasqueira) contains crystals with F- and dravite-rich cores and F- and schorl-rich rims, showing...Fe/(Fe+Mg) from core to rim. The comparison of schorl-dravite, foitite and Mg-foitite from the granite-related...contain schorl, while Au-quartz veins mainly have dravite. Key words: tourmaline composition, Vieiros, Rebordelo |  | | Journal (article/letter/editorial) | | greenstone belt hosts the largest operational gold mine in India at Hutti, as well as two satellite mines...mylonitic foliation. These tourmalines belong to the dravite/oxydravite group, with an evolutionary trend towards...(Campbell and Hill, 1988; Kerrich, 1991). Based on mine-scale shear-dominated structures, hydrothermal mineral...the Hutti gold mine (16°12' N, 76°43' E), currently the largest operational gold mine in India. Based...Uti deposits are exploited by two Hutti The Hutti mine comprises a series of parallel, ~N-S–striking, ~1-km-long |  | | Journal (article/letter/editorial) | | sulphide deposits contain tourmaline of the schorl-dravite series. Aitik-Nautanen Cu-(Au) style deposits and...some deposits with vein-style iron ore, contain dravite-schorl deficient in Al and enriched in Fe3+, which...Ranges, South Australia, White, 1959; Cloncurry district, Queensland; Edwards and Baker, 1953; Ramsay and...Bjiirkliden sulphide deposits, both within the Skellefte district, and thus outside the scapolite altered area,...= epidote, K-feldspar, pyroxene; (8) barite, a -Mine or deposit of Metals Tm Ab Ca Bi 0 (+I (+) |  | | | | in the field ~“ Various geological locations iin Canada© Physical properties of minerals and rocks, and...surrounded ce ne white calcite, from!iheBluebell Mine; Riondel, Digitized by the Internet Archive...acknowledges with thanks the Canada Council for the Arts, and the Ontario Arts Council for their support...acknowledge the financial support of the Government of Canada through the Book Publishing Industry Development...activities. Ss Canada Council for the Arts Conseil des Arts du Canada vw ONTARIO ARTS COUNCIL CONSEIL |  | | Journal (article/letter/editorial) | | pegmatites (TR3). Tourmalines belong to the schorl±dravite solid solution series and have a wide compositional...compositional range, from nearly end-member dravite for TR1 tourmalines to schorl for TR3 tourmalines; TR2 tourmalines...that all of the tourmalines belong to the schorl±dravite solid solution series. Representation of the data...schorl to dravite end-member (Fig. 3). Small enrichment in the uvite component towards the dravite end-member...ideal value of 1.0 for tourmalines of the schorl±dravite solid solution. This suggests the presence of vacancies |  | | Journal (article/letter/editorial) | | of carbonation is exemplified by the Gujar Kili mine area where even the serpentinites are lacking and...other localities, such as the Cobb-Takaka River district, New Zealand (Wellman 1943), the Middle River...Columbia (Little 1949), Vermont (Chidester 1962), Timmins, Ontario (Naldrett 1966; Schandl and Naldrett 1992)...being worked at three different sites designated as Mine 1, 2 and 3 (see Fig. 2). Although widely separated...are those being mined in Gujar Kili village and in Mine t of the Mingora area. 2. Emeralds associated with |
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