 | | 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 AuāTe deposit. The caldera occurs along the Viti Levu lineament, approximately...from the Tuvatu AuāTe deposit towards the central, northern, and eastern parts of the Navilawa caldera...Auā(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-northeastātrending 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 |  | | Journal (article/letter/editorial) | | goldāvanadiumātellurium association at the Tuvatu goldāsilver prospect, Fiji: conditions of ore deposition P. G...Springer-Verlag 2006 Editorial handling: N. Cook Summary The Tuvatu goldātelluride prospect is one of several epithermal...along the >250 km northeast trending Viti Levu lineament, Fiji, which are genetically associated with...formation of the telluride-native gold stage at Tuvatu (250 C, Au Ā¼ 1 ppb, Te Ā¼ 1 ppb, S Ā¼ 0.001...karelianite converge in pH-f O2 space near the hematiteāmagnetite buffer and at neutral to slightly acid |  | Orovan, Evan A., Cooke, David R., Harris, Anthony C., Ackerman, Ben, Lawlis, Erin (2018) Geology and Isotope Geochemistry of the Wainaulo Cu-Au Porphyry Deposit, Namosi District, Fiji. Economic Geology, 113 (1) 133-161 doi:10.5382/econgeo.2018.4546 | Journal (article/letter/editorial) | | Wainaulo Cu-Au Porphyry Deposit, Namosi District, Fiji* Evan A. Orovan,1,2,ā David R. Cooke,1,2 Anthony...Wainaulo Cu-Au porphyry deposit of the Namosi district, Fiji, hosts distinct styles of alteration and mineralization...part of the Namosi district in southeast Viti Levu Island, Fiji. The district is confined within the Special...177Ā°E Mt. Kasi 0.24 Moz Au1 B N 2.5 km Vanua Levu Yasawa Islands 1 2 3 Taveuni 4 17Ā°S Emperor...Mamanuca Islands 18Ā°S Koro Sea 18.25Ā°S Suva Tuvatu 0.46 Moz Au 19Ā°S 179Ā°E 178Ā°E 18.00Ā°S A OROVAN |  | 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) | | phase, likely CaCl2), and Type IV, liquidāvapor-hematiteĀ± NaCl homogenize to the liquid phase by liquidāvapor...crystal homogenization temperature; Th(Hem) 0 Hematite daughter crystal homogenization temperature Th(L-V)...pyrite, hematite, galena, and sphalerite (Figs. 6 and 7a). Secondary magnetite and hematite are spatially...(Voudouris, 2006) Dikes (this study) Dacite 6 Tuvatu monzonites (Scherbarth and Spry, 2006) Andesite...associated with porphyry-epithermal mineralization at Tuvatu (Scherbarth and Spry 2006), Lepanto-Far Southeast |  | | 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) . . ....Australia, at the main development level of the mine. The position of the Whenan Shaft is shown. Note |  | Giuliani, G., Ohnenstetter, D., Palhol, F., Feneyrol, J., Boutroy, E., De Boissezon, H., Lhomme, T. (2008) KARELIANITE AND VANADIAN PHLOGOPITE FROM THE MERELANI HILLS GEM ZOISITE DEPOSITS, TANZANIA. The Canadian Mineralogist, 46 (5) 1183-1194 doi:10.3749/canmin.46.5.1183 | Journal (article/letter/editorial) | | and the primary UāV ores from the Mounana uranium mine in Gabon (Gauthier-Lafaye & Weber 2003). It is also...veins developed in a hematiteābarite ore within dolomite in the Buca della Vena mine in northern Tuscany...Baikal (Koneva 2002), Outokumpu (Long et al. 1963), Tuvatu (Spry & Scherbarth 2006), Mounana Ā(Geffroy et...2002), the VāCr oxides from the Tuvatu goldā silver prospect in Fiji (Spry & Scherbarth 2006) and the...geochemical studies of the Emperor gold telluride deposit, Fiji. Econ. Geol. 83, 345-370. Hurlbut, C.S., Jr. (1969): |  | | Book | | occurs with quartz crystals at the Ellenville Lead mine, granite at Topsham, Maine. Figure 20. A thumbnail-sized...Moir 1996). lmenite to mixtures of rutile and hematite, magnetite, or ;iderite is attributed to metamorphic...Mountain, Georgia, and at the Champion andalusite mine, Mono County, California (Cook 1985, Cook 2003Š°;...rutile crystal about 3 cm tall, from the Onganja mine, Namibia. RJL331 I Many of the finest anatase and...specimens of rutilated quartz and oriented rutile on hematite from near lbitiara, Bahia, Brazil, are also examples |  | | Report (issue) | | ............................................U22 Mine Waste Characteristics.........................................................................U25 Mine Closure...........................................V/L microgram of vanadium per liter AMD acid mine drainage Ga giga-annum HSLA high-strength, low-alloy...reserves Source of data ID Deposit 1 Lueca Mine Angola NA Vanadate ā7.92 13.65 n.d. n.d....ā25.63 27.78 n.d. n.d. n.d. n.d. 54 Mapochs Mine South Africa Bushveld Igneous Complex, Limpopo |  | | Journal (article/letter/editorial) | | strongly associated with pyrite. Intense albite and hematite alteration surround the mineralized veins, and...precipitated in these altered rocks. The albite and hematite alterations are synchronous and derived from the...auriferous veins. The occurrence and absence of hematite within the alteration zone reflects variable amounts...close to the mineralization can be oxidized to hematite, but this reaction is not seen elsewhere. As documented...mineralization. This zone also contains variable amounts of hematite and albite in association with hydrothermal carbonate |  | | 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. Modiļ¬ed after Setterļ¬eld 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...3.7 (Table 2). This stage also contains minor hematite and goethite, and quartz in this stage is usually...with bornite, pyrrhotite, pyrite, magnetite and hematite. The grey dashed lines are boundaries between...with bornite, pyrrhotite, pyrite, magnetite and hematite. c LogfTe2 vs logĪ±Au+/Ī±Ag+ diagram for phase equilibrium...Abbreviations: bn bornite, cpy chalcopyrite, hem hematite, kao kaolinnite, kf K-feldspar, mt magnetite, |  | | Journal (article/letter/editorial) | | porphyry, Philippines, and the Emperor deposit, Fiji (e.g., Richards, 1995; Harris et al., 2013; Fig...Emperor Pliocene Port Moresby Darwin Suva -20Ā° FIJI Brisbane Macquarie Arc Cadia, Northparkes, Lake...alkalic porphyry deposits is characterized by hematite dusting (e.g., Wilson et al., 2007), and the zone...which, together with the widespread presence of hematite dusting, suggests mineralization originated when...of the Northeast zone breccia body, Mount Polley mine, British Columbia: Unpublished M.Sc. thesis, Vancouver |  | | Journal (article/letter/editorial) | | magnetite in maļ¬c intrusions (e.g., MaracaĢs Menchen Mine, Brazil, Hammond 2016; Bushveld, South Africa, Maier...pyrite, muscovite, apatite, titanite, chalcopyrite, hematite, and calcite. Identiļ¬ed using X-ray diffraction...CoNb2O6 (Nb), chromite (Al, Cr), synthetic V2O5 (V), hematite (Fe), and synthetic hausmannite (Mn). To determine...Russia Voi, Kenya Namalulu, Tanzania David Bell Mine, Canada Deadhorse Creek, Canada n n n n n n Ā¼18...Namalulu, Tanzania (Feneyrol et al. 2012); David Bell Mine, Canada (Urban et al. 1992); and Deadhorse Creek |  | | Journal (article/letter/editorial) | | Fimiston style is characterized by ankerite-pyrite Ā± hematite-magnetite-gold replacement, (b) Oroya style overprints...contrast, gold in the Mt. Charlotte underground mine is found mostly as āvisibleā gold grains, whereas...Mt. Percy open pits and Hidden Secret underground mine (Clout et al. 1990; Mueller and Muhling 2013). Fimiston...Fimiston style proximal ankerite-sericitepyrite Ā± hematite Ā± magnetite-leucoxene alteration haloes laterally...gold) magnetite breccias with rare pyrite and hematite (Fig. 3e). Stage II represents the first gold |  | Tombros, S. F., St. Seymour, K., Williams-Jones, A. E., Spry, P. G. (2008) Later stages of evolution of an epithermal system: AuāAg 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) | | Argentopyrite Covellite Anglessite Cerussite Goethite Hematite Aa Ba Ca Da 235ā223 ā ā ā ā ā ā ā ā b Stage I 213ā177...et al. 1998), dolomite and Mg-chlorite (Emperor, Tuvatu; Ahmad et al. 1987; Scherbarth and Spry 2006),...2004) and Mg-chlorite and manganese ores (Sunnyside mine; Casadevall and Ohmoto 1977). The Apigania Bay system...geochemical studies of the Emperor gold-telluride deposit, Fiji. Econ Geol 87:345ā370 Altherr R, Siebel W (2002)...53:1209ā1221 Casadevall T, Ohmoto H (1977) Sunnyside mine, Eureka Mining District, San Juan Country, Colorado: |  | Farhan, Muhammad, Arif, Mohammad, Ying, Ye, Chen, Xuegang, Garbe-Schƶnberg, 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) | | oxide, pyrope, manganese oxide, fluorapatite, hematite, titanium dioxide, and nickel oxide were used...(ppm) are found in low-temperature pyrites, such as Tuvatu (Se = 867; 250 ĖC; Scherbarth and Spry, 2006; Spry...Henney, P., 1995. Characterization of gold from Fiji. British Geological Survey, Technical report WC/95/41..., 1990. Origin of rare earth element-enriched hematite breccias at the Olympic Dam Cu-U-Au-Ag deposit...inclusion characteristics of the Tuvatu gold-silver telluride deposit, Fiji: Comparisons with the Emperor |  | Xu, Wen-Gang, Fan, Hong-Rui, Hu, Fang-Fang, Santosh, M., Yang, Kui-Feng, Lan, Ting-Guang, Wen, Bo-Jie (2014) Gold mineralization in the Guilaizhuang deposit, southwestern Shandong Province, China: Insights from phase relations among sulfides, tellurides, selenides and oxides. Ore Geology Reviews, 56. 276-291 doi:10.1016/j.oregeorev.2013.06.010 | Journal (article/letter/editorial) | | but occurs as selenides in the breccia ores. Hematite is the only oxide in the breccia ores, associated...including weissite, altaite and coloradoite. Minor hematite, barite, and tiemannite are closely associated...in size, are embedded in calaverite (Fig. 7f). Hematite is also found in the colloidal and grain forms...Ć°gĆ and logf O2 Ć°gĆā logf Se2 Ć°gĆ diagrams: Hematite is the only oxide in the breccia ores, which is...the oxygen fugacity. Barite is associated with hematite in the ores (Fig. 7g), which can be used to construct |  | Keith, Manuel, Smith, Daniel J., Doyle, Keiran, Holwell, David A., Jenkin, Gawen R.T., Barry, Tiffany L., Becker, Joseph, Rampe, Jason (2020) Pyrite chemistry: A new window into Au-Te ore-forming processes in alkaline epithermal districts, Cripple Creek, Colorado. Geochimica et Cosmochimica Acta, 274. 172-191 doi:10.1016/j.gca.2020.01.056 | Journal (article/letter/editorial) | | Porgera and Ladolam (Papua New Guinea) and Vatukoula (Fiji) (Richards and Kerrich, 1993; Kelley et al., 1998;...and higher oxidation states (stability field of hematite and pyrite) enhancing the mobilization and transportation...(2) Cresson (Ruby stockpile) and (3) the historic mine site of Vindicator Valley (Fig. 1). The sample set...low-sulfidation epithermal systems, such as Emperor (Fiji; Pals and Spry, 2003) and Boulder County (Colorado;...geochemical studies of the Emperor gold telluride deposit, Fiji. Econ. Geol. 82, 345ā370. Barton P. B. and Skinner |  | KubaÄ, Alexander, Chovan, Martin, KodÄra, Peter, Kyle, J. Richard, ŽitÅan, Peter, Lexa, Jaroslav, Vojtko, Rastislav (2018) Mineralogy of the epithermal precious and base metal deposit BanskĆ” HodruÅ”a at the RozĆ”lia Mine (Slovakia) Mineralogy and Petrology, 112 (5) 705-731 doi:10.1007/s00710-018-0558-y | Journal (article/letter/editorial) | | base metal deposit BanskĆ” HodruÅ”a at the RozĆ”lia Mine (Slovakia) Alexander KubaÄ1 Rastislav Vojtko6 Ā·...Computed tomography Ā· Low angle shear zone Ā· RozĆ”lia Mine Ā· HodruÅ”a-HĆ”mre Ā· Å tiavnica stratovolcano Introduction...base metal deposit of BanskĆ” HodruÅ”a at the RozĆ”lia Mine has several unique characteristics. The major distinct...district was discovered close to the historic RozĆ”lia Mine that produced Pb-Zn-Cu ore from the resurgent horst-related...BanskĆ”, Ltd. at deep levels of the mine and is the only active ore mine in Slovakia. The mineralogy and |  | 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) | | (tenorite, delafossite, lepidocrocite, goethite, and hematite), carbonates (malachite, azurite, cerussite),...geochemical studies of the Emperor gold telluride deposit, Fiji: ECONOMIC GEOLOGY, v. 87, p. 345ā370. 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 fĆ¼r Mineralogie Abhandlungen...low-sulfidation epithermal Emperor gold deposit, Vatukoula, Fiji: Mineralogy and Petrology, v. 79, p. 285ā307. Porter |  | | Journal (article/letter/editorial) | | Hawleyite Heazlewoodite Hectorite Hedenbergite Hematite Hemihedrite Hemimorphite Hercynite Herzenbergite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...consist mainly of the minerals kaolinite, goethite, hematite and gibbsite. Latite is an extrusive rock, with...you look for a mine look near a mineā. This includes the imperative āif you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is ļ¬rst and foremost recognized | | | Journal (article/letter/editorial) | | Hawleyite Heazlewoodite Hectorite Hedenbergite Hematite Hemihedrite Hemimorphite Hercynite Herzenbergite...hanging wall. During a subsequent mining period, the mine was re-opened to recover sideritic parts of the...consist mainly of the minerals kaolinite, goethite, hematite and gibbsite. Latite is an extrusive rock, with...you look for a mine look near a mineā. This includes the imperative āif you look for a mine look for smelting...also for the chrome diopside found at Outukumpu mine, a mineral that is ļ¬rst and foremost recognized |  | | Report (volume) | | Japan (Moritani 1976; Hariya & Tatsumi 1981) Viti Levu, Fiji (Colley & Walsh 1987) Late OligoceneMid-Miocene...(psilomelane, pyrolusite, jacobsite, hausmannite, hematite) are interbedded with the Rooinekke iron formation...consequent deposition of Fe 3+ phases (goethite, hematite) and clay minerals. On transportation, dissolved...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 |  | Brugger, JoĆ«l, Liu, Weihua, Etschmann, Barbara, Mei, Yuan, Sherman, David M., Testemale, Denis (2016) A review of the coordination chemistry of hydrothermal systems, or do coordination changes make ore deposits?. Chemical Geology, 447. 219-253 doi:10.1016/j.chemgeo.2016.10.021 | Journal (article/letter/editorial) | | of HS-, cov- AC ering a large portion of the hematite stable area, which implies that selenide (Se2-)...12). Tellurite complexes are stable close to the hematite/magnetite buffer, leading Grundler et al. (2013)...minerals for the galliumgermanium ores of the Apex Mine, Utah. Economic Geology, 81(4): 946950. Edwards...goldāvanadiumātellurium association at the Tuvatu goldāsilver prospect, Fiji: conditions of ore deposition. Mineralogy...speciation in hydrothermal fluids. (a) Solubility of hematite in oxidised fluids (1 m NaCl, 0.001 m HCl). (b) |
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