 | | Journal (article/letter/editorial) | | Au- and Porphyry Cu-Style Mineralization, Navilawa Caldera, Fiji Nathan A. Forsythe 1 , Paul G. Spry 1,...Abstract: The Navilawa caldera is the remnant of a shoshonitic volcano on Viti Levu, Fiji, and sits adjacent...low-sulfidation Tuvatu epithermal Au–Te deposit. The caldera occurs along the Viti Levu lineament, approximately...from the Tuvatu Au–Te deposit towards the central, northern, and eastern parts of the Navilawa caldera...Au–(Te) vein systems, including the Banana Creek and Tuvatu North prospects. Chalcopyrite, and minor bornite |  | | Journal (article/letter/editorial) | | Inclusion Characteristics of the Tuvatu Gold-Silver Telluride Deposit, Fiji: Comparisons with the Emperor...State University, Ames, Iowa 50011 Abstract The Tuvatu gold-silver telluride deposit with reserves of...of 13 t Au is the second largest gold deposit in Fiji after the large Emperor gold telluride deposit (production...occur along the >250-km east-northeast–trending Viti Levu lineament. They are spatially associated with...along the margins of the Tavua volcano whereas the Tuvatu deposit may occur adjacent to an eroded shoshonite |  | Fornadel, Andrew P., Voudouris, Panagiotis Ch., Spry, Paul G., Melfos, Vasilios (2012) Mineralogical, stable isotope, and fluid inclusion studies of spatially related porphyry Cu and epithermal Au-Te mineralization, Fakos Peninsula, Limnos Island, Greece. Mineralogy and Petrology, 105 (1) 85-111 doi:10.1007/s00710-012-0196-8 | Journal (article/letter/editorial) | | altered to white mica and, in places, spherulitic sericite. The sample of a dark-colored, porphyritic quartz...occurs in monomineralic veinlets crosscutting sericite-tourmaline altered monzonite and likely belongs...and 3 veins are spatially associated with quartz-sericite-tourmaline-pyrite alteration. Stage 2 mineralization...intergrowths with quartz. Other gangue minerals include sericite, smectite, minor chlorite, and tourmaline. Metallic...contain minor amounts of tourmaline, barite, and sericite. Metallic minerals in the eastern ore zone include |  | | Book (edition) | | . . . . . . . 6.3.2 Emperor Gold Deposit, Viti Levu, Fiji. . . . 6.3.3 Dinkidi Copper-Gold Deposit, Didipio...New Guinea, 13 Roumania, 14 Mariana Islands, 15 Fiji, 16 Kuril Islands, 17 Vanuatu, 18 Sunda Arc, 19.... . Samples from oceanic arcs (Lihir Island, Viti Levu, Goonumbla) plotted on the (TiO2/10)(Lax10)-(P2O5/10)...Geological overview of the Emperor gold deposit, Fiji. Modified after Setterfield et al. (1991) . . ....alteration is overprinted by a late-stage pervasive sericite alteration [FOV 5 × 12 cm] . . . . . . . . . Geological |  | Millonig, Leo J., Beinlich, Andreas, Raudsepp, Mati, Devine, Fionnuala, Archibald, Douglas A., Linnen, Robert L., Groat, Lee A. (2017) The Engineer Mine, British Columbia: An example of epithermal Au-Ag mineralization with mixed alkaline and subalkaline characteristics. Ore Geology Reviews, 83. 235-257 doi:10.1016/j.oregeorev.2016.12.023 | Journal (article/letter/editorial) | | homepage: www.elsevier.com/locate/oregeo The Engineer Mine, British Columbia: An example of epithermal Au-Ag...Roscoelite Vanadium a b s t r a c t The Engineer Mine epithermal precious metal deposit in British Columbia...style of epithermal mineralization at the Engineer Mine we conducted detailed petrographic, mineralogical...studies. The principal ore assemblage of the Engineer Mine epithermal veins precipitated in response to boiling...meteoric water. Based on these results the Engineer Mine is classified as an epithermal low-sulfidation deposit |  | | Journal (article/letter/editorial) | | include quartz, carbonate, biotite, chlorite, sericite, and epidote. The metamorphic mineral assemblage...of biotite, and plagioclase has been altered to sericite and calcite. Metamorphic rocks close to mineralization...show foliation defined by chlorite, biotite, and sericite. Small veinlets occur parallel to the foliation...Stage II, quartz-albite-carbonate-pyrite veins and sericite-pyrite seams; Stage III, quartz-pyrite veins;...alteration zone, which also contains small amount of sericite. The mineral assemblage in this zone is attributed |  | | Book (edition) | | . . . . . . . 6.3.2 Emperor Gold Deposit, Viti Levu, Fiji . . . . . . . . 6.3.3 Dinkidi Copper-Gold Deposit...resources of 200,000 oz. gold both at Kanowna Belle Gold Mine, Australia, and at the Jabal Shayban Gold Project...New Guinea, 13 Roumania, 14 Mariana Islands, 15 Fiji, 16 Kuril Islands, 17 Vanuatu, 18 Sunda Arc, 19...Geological overview of the Emperor gold deposit, Fiji. Modified after Setterfield et al. (1991) . . . ....e mineralization from the Emperor gold deposit, Fiji (mineral collection of TU Bergakademie Freiberg) |  | | Journal (article/letter/editorial) | | 1985; Spry et al. 1997), the Emperor deposit in Fiji (Ahmad et al. 1987; Pals and Spry 2003; Scherbarth...dominated by an assemblage of quartz-adularia-calcite±sericite±chlorite±illite. Samples and analytical method...value is lower than −41.8. The equilibrium between sericite, kaolinnite and K-feldspar is D. Zhai, J. Liu...boundaries of chalcopyrite and bornite+pyrite, and sericite, kaolinite and K-feldspar equilibria, whereas...K-feldspar, mt magnetite, po pyrrhotite, py pyrite, sec sericite 3 The unusually high Te concentrations in the |  | Farhan, Muhammad, Arif, Mohammad, Ying, Ye, Chen, Xuegang, Garbe-Schönberg, Dieter, Li, Chun-Feng, Hussain, Zahid, Ullah, Zaheen, Zhang, Pingping, Khan, Asad (2021) Fluid source, element mobility and physicochemical conditions of porphyry-style hydrothermal alteration-mineralization at Mirkhani, Southern Chitral, Pakistan. Ore Geology Reviews, 135. 104222pp. doi:10.1016/j.oregeorev.2021.104222 | Journal (article/letter/editorial) | | of gangue and ore mineral assemblage (epidote + sericite + albite + pyrite) implies a mineralization temperature...deposit at Mirkhani contain epidote, chlorite, sericite, and pyrite (e.g., Heuberger et al., 2007; Farhan...altered granodio rites and their chlorite-epidote-sericite altered counterparts for detailed petrographic...photomicrographs (H− O) of the chlorite-epidote-sericite-pyrite mineralization at Mirkhani: (A) least altered...showing chlorite-epidote-sericite mineralization; (D, E) chlorite-epidote-sericite altered rock; (F, G) chlorite |  | Tombros, S. F., St. Seymour, K., Williams-Jones, A. E., Spry, P. G. (2008) Later stages of evolution of an epithermal system: Au–Ag mineralizations at Apigania Bay, Tinos Island, Cyclades, Hellas, Greece. Mineralogy and Petrology, 94 (3) 175-194 doi:10.1007/s00710-008-0019-0 | Journal (article/letter/editorial) | | schists. Zones of epidote–chlorite–calcite and sericite–albite alteration are associated with precious...quartz (≈50 vol. %), epidote (≈30 vol.%), albite, sericite (both 10 vol.%), ankerite (≈5 vol.%), with pyrite...finegrained milky quartz. They also contain albite, sericite, ankerite, pyrite and sphalerite. Chlorite zones...clear quartz, chlorite, calcite, minor albite and sericite, tetrahedrite, chalcopyrite and galena. Representative...epidote from alteration zone, 3 vein fill sericite (Band B), 4 sericite from alteration zone, 5 vein fill albite |  | | Journal (article/letter/editorial) | | style is characterized by veins with ankerite-sericite ± albite-pyrite-pyrrhotite-gold selvages. Hydrothermal...contrast, gold in the Mt. Charlotte underground mine is found mostly as “visible” gold grains, whereas...characterized by shear-zone and breccia-hosted ankerite-sericite-pyritegold-telluride lodes, while Oroya-style...locally sheared ore zones containing ankerite-sericite-pyrite ± V-muscovite-gold-tellurides. Finally...Mt. Percy open pits and Hidden Secret underground mine (Clout et al. 1990; Mueller and Muhling 2013). Fimiston |  | Nikolaev, Yu. N., Prokof’ev, V. Yu., Apletalin, A. V., Vlasov, E. A., Baksheev, I. A., Kal’ko, I. A., Komarova, Ya. S. (2013) Gold-telluride mineralization of the Western Chukchi Peninsula, Russia: Mineralogy, geochemistry, and formation conditions. Geology of Ore Deposits, 55 (2) 96-124 doi:10.1134/s1075701513020049 | Journal (article/letter/editorial) | | occasionally chalcedonylike quartz (80– 90%), sericite, adularia and chlorite. Ore minerals are 98...calcite are the major, while epidote, hydromica, sericite, chlorite, and albite are minor constituents....pro pylite with relict magmatic ilmenite. Quartz–sericite rocks characteristic of the pros pect are fine...pro pylite and propylitized rocks. The quartz/sericite ratio is unity, but occasionally quartz is predominant...exceed a few tenth of a millime ter in size. Sericite frequently replaces feldspar phe nocrysts to |  | Kubač, Alexander, Chovan, Martin, Koděra, Peter, Kyle, J. Richard, Žitňan, Peter, Lexa, Jaroslav, Vojtko, Rastislav (2018) Mineralogy of the epithermal precious and base metal deposit Banská Hodruša at the Rozália Mine (Slovakia) Mineralogy and Petrology, 112 (5) 705-731 doi:10.1007/s00710-018-0558-y | Journal (article/letter/editorial) | | base metal deposit Banská Hodruša at the Rozália Mine (Slovakia) Alexander Kubač1 Rastislav Vojtko6 ·...Computed tomography · Low angle shear zone · Rozália Mine · Hodruša-Hámre · Štiavnica stratovolcano Introduction...tetrahedritetennantite, chalcopyrite) and predominance of sericite over adularia in wall rock alteration (Hedenquist...base metal deposit of Banská Hodruša at the Rozália Mine has several unique characteristics. The major distinct...district was discovered close to the historic Rozália Mine that produced Pb-Zn-Cu ore from the resurgent horst-related |  | Tombros, S., St. Seymour, K., Williams-Jones, A. E., Spry, P. G. (2007) The Genesis of Epithermal Au-Ag-Te Mineralization, Panormos Bay, Tinos Island, Cyclades, Greece. Economic Geology, 102 (7) 1269-1294 doi:10.2113/gsecongeo.102.7.1269 | Journal (article/letter/editorial) | | adularia ± illite type due to the presence of quartz-sericite-pyrite alteration, quartz-calcite-talc in the...geochemical studies of the Emperor gold telluride deposit, Fiji: ECONOMIC GEOLOGY, v. 87, p. 345–370. Aksyuk, A...Casadevall, T., and Ohmoto, H., 1977, Sunnyside mine, Eureka mining district, San Juan Country, Colorado:...breccia pipe Cu-W mineralization of the Dalseong mine, Korea: Neues Jahrbuch für Mineralogie Abhandlungen...low-sulfidation epithermal Emperor gold deposit, Vatukoula, Fiji: Mineralogy and Petrology, v. 79, p. 285–307. Porter |  | | Journal (article/letter/editorial) | | the Emperor alkalic-type epithermal Au deposit in Fiji (Gill and Whelan, 1989; Setterfield et al., 1992)...similar to low-sulfidation deposits (adularia and sericite — or roscoelite [vanadium mica] — are stable)...alteration assemblages (potassic), through muscovite/sericite-stable assemblages J.P. Richards / Ore Geology...geochemical studies of the Emperor gold telluride deposit, Fiji. Economic Geology 82, 345–370. Aitcheson, S.J.,...1989. Postsubduction ocean island alkali basalts in Fiji. Journal of Geophysical Research 94, 4579–4588. |  | | Journal (article/letter/editorial) | | hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is first and foremost recognized...According to the Raw Materials Group (Sweden), the world mine production in 2005 stood at 19.3 m t metal content...mining company. • World mine production • Proven + probable resources • Mine production by country • | | | Journal (article/letter/editorial) | | hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...you look for a mine look near a mine”. This includes the imperative “if you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is first and foremost recognized...According to the Raw Materials Group (Sweden), the world mine production in 2005 stood at 19.3 m t metal content...mining company. • World mine production • Proven + probable resources • Mine production by country • |  | | Report (volume) | | Japan (Moritani 1976; Hariya & Tatsumi 1981) Viti Levu, Fiji (Colley & Walsh 1987) Late OligoceneMid-Miocene...Hungary, Philipsburg and Butte, USA, and Janggun mine, South Korea (for detailed discussion see Roy 1981)...are well-developed in Bishop, Glosam, and Lohatlha mine areas and are composed dominantly of bixbyite and...1987. Genesis of Fe-Mn deposits of southwest Viti Levu, Fiji. Transactions Institution of Mining and Metallurgy...Glosam manganese mines and the Beeshoek Iron ore mine of the Postamasburg area. In: Ar~q4AEUSSER, C. R |  | | Report (issue) | | .B3 Graph showing dates associated with all the mine sites on the U.S. Environmental Protection Agency’s...production, U.S. apparent consumption, and U.S. mine production of antimony from 1900 to 2012............................F2 Graph showing world cobalt mine and refinery production and apparent consumption.....................F2 Graph showing world cobalt mine production from 1950 to 2011......................F4. Pie chart showing percentage of world cobalt mine production in 2011, by country................. |
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