 | | Journal (article/letter/editorial) | | DEPOSITA 9 Springer-Verlag 1994 Gold mineralization in As-rich mesothermal gold ores of the Bogosu-Prestea...mining district of the Ashanti Gold Belt, Ghana: remobilization of "invisible" gold A.H. Mumin 1, M.E. Fleet...district of southwestern Ghana is a 33 km section of the Early Proterozoic Ashanti Gold Belt. Greenschist facies...and mafic dikes host numerous economic mesothermal gold deposits. Structurally higher ores in the Bogosu...dikes. Most gold occurs as micrometre-size particles in arsenian pyrite, and as "invisible" gold in arsenian |  | Agangi, Andrea, Reddy, Steven M., Plavsa, Diana, Fougerouse, Denis, Clark, Chris, Roberts, Malcolm, Johnson, Tim E. (2019) Antimony in rutile as a pathfinder for orogenic gold deposits. Ore Geology Reviews, 106. 1-11 doi:10.1016/j.oregeorev.2019.01.018 | Journal (article/letter/editorial) | | Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi, Steven M. Reddy, Diana Plavsa...Antimony in rutile as a pathfinder for orogenic gold deposits, Ore Geology Reviews (2019), doi: https://doi... Antimony in rutile as a pathfinder for orogenic gold deposits Andrea Agangi1,2, Steven M. Reddy1, Diana...Australia aagangi@uj.ac.za Key words: Gold, antimony, orogenic gold deposit, indicator mineral, exploration...applicability of rutile as a pathfinder for orogenic gold deposits, which are an important source of this |  | Lawrence, D. M., Treloar, P. J., Rankin, A. H., Harbidge, P., Holliday, J. (2013) The Geology and Mineralogy of the Loulo Mining District, Mali, West Africa: Evidence for Two Distinct Styles of Orogenic Gold Mineralization. Economic Geology, 108 (2) 199-227 doi:10.2113/econgeo.108.2.199 | Journal (article/letter/editorial) | | Africa: Evidence for Two Distinct Styles of Orogenic Gold Mineralization DAVID M. LAWRENCE†,1,*, PETER J....JE2 4WJ Abstract Loulo is a world-class orogenic gold mining district in the Birimian terrane of western...shear zone, with gold mineralization largely linked to a transtensional event. The mine camp is divided...divided into two distinct styles of gold deposit on the basis of differing geologic characteristics. One group...tourmalinization (pre-, syn- and postmineralization). Gold lodes are Fe-rich (dominated by nickeloan pyrite) |  | | Journal (article/letter/editorial) | | Proterozoic Birimian Supergroup of Ghana and Some Aspects of its Associated Gold Mineralization ALFRED LEUBE...2Geological Survey Department, Box M80, Accra (Ghana) Abstract Leube, A., Hirdes, W., Mauer, R. and...Proterozoic Birimian Supergroup of Ghana and some aspects of its associated gold mineralization. Precambrian..._+66 Ma) form part of the West African craton. Ghana contains the eastern portion of the Birimian terrane...chemistry ), characterize the Birimian Supergroup of Ghana. The belts are separated by basins containing isoclinally |  | Mil�si, J.P., Ledru, P., Ankrah, P., Johan, V., Marcoux, E., Vinchon, Ch. (1991) The metallogenic relationship between Birimian and Tarkwaian gold deposits in Ghana. Mineralium Deposita, 26 (3) doi:10.1007/bf00209263 | Journal (article/letter/editorial) | | relationship between BMmian and Tarkwaian gold deposits in Ghana J.P. Mil~si 1, p. Ledru 1, p. Ankrah z...GeologicalSurvey Department, PO Box M. 80, Accra, Ghana Received: November 14, 1989/Accepted: December 12...traditional concept of the Early Proterozoic gold deposits in Ghana i.e. gold-bearing shear zones overlain by Tarkwaian...Tarkwaian paleoplacers containing reworked gold derived from the shear-zones - needs to be reconsidered...reconsidered in the light of recent research in Ghana, the Ivory Coast and French Guiana. This research has revealed |  | Masurel, Quentin, Thébaud, Nicolas, Miller, John, Ulrich, Stanislav, Hein, Kim A.A., Cameron, Greg, Béziat, Didier, Bruguier, Olivier, Davis, James A. (2017) Sadiola Hill: A World-Class Carbonate-Hosted Gold Deposit in Mali, West Africa. Economic Geology, 112 (1) 23-47 doi:10.2113/econgeo.112.1.23 | Journal (article/letter/editorial) | | 23–47 Sadiola Hill: A World-Class Carbonate-Hosted Gold Deposit in Mali, West Africa* Quentin Masurel,1...Perry Avenue, Kensington, WA 6152, Australia Ashanti Australia Limited, Asset Development - Brownfields...Montpellier, France Abstract The ~8-Moz Sadiola Hill gold deposit is located in the Kédougou-Kénieba inlier...the abundance of carbonate rocks. The Sadiola Hill gold deposit occurs within 3 km of the Senegal-Mali shear...shear zone, and country rocks in the region have undergone polycyclic deformation. The lithostratigraphy |  | Lambert-Smith, James S., Allibone, Andrew, Treloar, Peter J., Lawrence, David M., Boyce, Adrian J., Fanning, Mark (2020) Stable C, O, and S Isotope Record of Magmatic-Hydrothermal Interactions Between the Falémé Fe Skarn and the Loulo Au Systems in Western Mali. Economic Geology, 115 (7). 1537-1558 doi:10.5382/econgeo.4759 | Journal (article/letter/editorial) | | Park Place, Cardiff, CF10 3AT, United Kingdom Gold (Holdings) Ltd, 3rd Floor, Unity Chambers, 28 Halkett...the ultimate source of the ore fluids in orogenic gold deposits, with the metals scavenged from the same...sedimentary rocks, ca. 2110-2100 Ma Ahaufo, Yamfo Obuasi N 6º Bonikro Tarkwa, Iduapriem Golds deposit...2135-2100 Ma Archean rocks, Kenema-Man Domain Gold deposit size skarn Eburnean basin orogenic Eoeburnean...data Exploration targets 235E 230E 225E Au mine Gefa Faults, fractures and shear zones from drilling |  | Lawrence, D. M., Treloar, P. J., Rankin, A. H., Boyce, A., Harbidge, P. (2013) A Fluid Inclusion and Stable Isotope Study at the Loulo Mining District, Mali, West Africa: Implications for Multifluid Sources in the Generation of Orogenic Gold Deposits. Economic Geology, 108 (2) 229-257 doi:10.2113/econgeo.108.2.229 | Journal (article/letter/editorial) | | Multifluid Sources in the Generation of Orogenic Gold Deposits DAVID M. LAWRENCE,1,†,* PETER J. TRELOAR...range of mineralogically diverse styles of orogenic gold mineralization. The district is distinguished by...(metamorphic and magmatic) in the formation of orogenic gold deposits. Microthermometric and laser Raman studies...Africa and in other orogenic gold districts worldwide. The precipitation of gold from the H2S-rich metamorphic...Co ± Pb ± Zn minor/trace sulfides, and scheelite. Gold deposition in the Gara-style hydrothermal system |  | Sung, Y.-H., Ciobanu, C. L., Pring, A., Brügger, J., Skinner, W., Cook, N. J., Nugus, M. (2007) Tellurides from Sunrise Dam gold deposit, Yilgarn Craton, Western Australia: a new occurrence of nagyágite. Mineralogy and Petrology, 91 (3) 249-270 doi:10.1007/s00710-007-0199-z | Journal (article/letter/editorial) | | in The Netherlands Tellurides from Sunrise Dam gold deposit, Yilgarn Craton, Western Australia: a new...of Oslo, Oslo, Norway 5 Sunrise Dam Gold Mine, AngloGold Ashanti Ltd, Laverton, Australia 2 Received...and post-D4 veinlets in the world-class orogenic gold deposit at Sunrise Dam, Eastern Goldfields Province...association of telluride assemblages and native gold is interpreted in terms of remobilization of ore...products, have implications for ore processing and gold recovery, as well as for the genetic interpretation |  | | Journal (article/letter/editorial) | | and Gangue Quartz at the Degdekan and Gol’tsovsky Gold Deposits, Magadan Oblast S. V. Voroshina, E. E....and Gol’tsovsky gold–quartz deposits are located in the southeastern Yana–Kolyma gold belt. The orebodies...INTRODUCTION Since the discovery of the Yana–Kolyma gold belt in the 1930s, relationships between intrusive...sequence of geological events and the genesis of gold–quartz deposits. Special attention has been paid...bodies. Bilibin (1940) suggested an older age of the gold-bearing quartz veins relative to granitoids on the |  | Sung, Y.-H., Brugger, J., Ciobanu, C. L., Pring, A., Skinner, W., Nugus, M. (2009) Invisible gold in arsenian pyrite and arsenopyrite from a multistage Archaean gold deposit: Sunrise Dam, Eastern Goldfields Province, Western Australia. Mineralium Deposita, 44 (7) 765-791 doi:10.1007/s00126-009-0244-4 | Journal (article/letter/editorial) | | ARTICLE Invisible gold in arsenian pyrite and arsenopyrite from a multistage Archaean gold deposit: Sunrise...Springer-Verlag 2009 Abstract The Sunrise Dam gold mine (11.1 Moz Au) is the largest deposit in the Archaean...whereas arsenopyrite contains up to 5,767 ppm (n=19). Gold in arsenopyrite (D4a stage) was coprecipitated and...brugger@adelaide.edu.au M. Nugus Sunrise Dam Gold Mine, AngloGold Ashanti Australia Ltd, Laverton, Western Australia...Seoul 156-706, South Korea remained as “invisible gold” (nanoparticles and/or latticebound) during subsequent |  | Neyedley, Kevin, Hanley, Jacob J., Fayek, Mostafa, Kontak, Daniel J. (2017) Textural, Fluid Inclusion, and Stable Oxygen Isotope Constraints on Vein Formation and Gold Precipitation at the 007 Deposit, Rice Lake Greenstone Belt, Bissett, Manitoba, Canada. Economic Geology, 112 (3) 629-660 doi:10.2113/econgeo.112.3.629 | Journal (article/letter/editorial) | | Oxygen Isotope Constraints on Vein Formation and Gold Precipitation at the 007 Deposit, Rice Lake Greenstone...Sudbury, Ontario, Canada P3E 2C6 Abstract The 007 gold deposit is located within the 2.99–2.70 Ga Rice...inclusions were trapped during the growth of Q1 (prior to gold deposition), the common occurrence of texturally...suggests that these fluids are likely related to gold deposition. In situ oxygen isotope analysis of barren...flow-through system. An approximate P-T window of gold deposition is constrained using fluid inclusion |  | Lawrence, D.M., Allibone, A.H., Chang, Z., Meffre, S., Lambert-Smith, J.S., Treloar, P.J. (2017) The Tongon Au Deposit, Northern Côte d’Ivoire: An Example of Paleoproterozoic Au Skarn Mineralization☼. Economic Geology, 112 (7) 1571-1593 doi:10.5382/econgeo.2017.4522 | Journal (article/letter/editorial) | | change from white- to green-colored skarn. Spatially, gold-rich stage 3 alteration coincides with stage 2 intermediate...episode of orogenic Au mineralization in southwest Ghana and western Mali. Dating provides further evidence...a variety of different processes. Introduction Gold, rather than base metals, is the principal metal...major curved reverse faults during a period of region-wide contractional deformation (e.g., Twiss and...0 Côte d'Ivoire Liberia Abidjan 250 500km Ghana 6° N Accra Atlantic Ocean Legend Neoproterozoic |  | Masurel, Quentin, Thébaud, Nicolas, Miller, John, Ulrich, Stanislav, Roberts, Malcolm Peter, Béziat, Didier (2017) The Alamoutala Carbonate-Hosted Gold Deposit, Kédougou-Kénieba Inlier, West Africa. Economic Geology, 112 (1) 49-72 doi:10.2113/econgeo.112.1.49 | Journal (article/letter/editorial) | | 112, pp. 49–72 The Alamoutala Carbonate-Hosted Gold Deposit, Kédougou-Kénieba Inlier, West Africa Quentin...Perry Avenue, Kensington, WA 6152, Australia Ashanti Australia Limited, Asset Development-Brownfields...31400 Toulouse, France Abstract The Alamoutala gold deposit is located in the Kédougou-Kénieba inlier...microtextural data, however, indicate that economic gold mineralization is shear hosted and occurred during...magnetite-bearing skarn was overprinted by a region-wide orogenic gold event in the late Eburnean. Introduction |  | | Report (chapter) | | Online First The Massawa gold deposit, Eastern Senegal, West Africa: an orogenic gold deposit sourced from...1, 2014 The Massawa gold deposit, Eastern Senegal, West Africa: an orogenic gold deposit sourced from...treloar@kingston.ac.uk) Abstract: The Massawa gold project is situated on the Senegalese side of the highly...inlier, which hosts several worldclass orogenic gold deposits/districts in western Mali (e.g. Loulo and...tetrahedrite veining distinguished by coarse visible gold and represents a late stage overprint on the primary |  | Cook, N. J., Ciobanu, C. L., Meria, D., Silcock, D., Wade, B. (2013) Arsenopyrite-Pyrite Association in an Orogenic Gold Ore: Tracing Mineralization History from Textures and Trace Elements. Economic Geology, 108 (6) 1273-1283 doi:10.2113/econgeo.108.6.1273 | Journal (article/letter/editorial) | | Arsenopyrite-Pyrite Association in an Orogenic Gold Ore: Tracing Mineralization History from Textures...Proterozoic orogenic gold deposit, Tanami gold province, northcentral Australia. Gold distribution patterns...remobilization of that Au following brittle fracture. Gold expelled from the sulfide lattice during the remobilization...took place. Residual concentrations of invisible gold (in grain centers) are <5 ppm in arsenopyrite and...remobilized gold is accompanied by fine particles (200 nm–2 μm) and nanoparticles (<200 nm) of gold. The extensive |  | Gunn, A.G., Dorbor, J.K., Mankelow, J.M., Lusty, P.A.J., Deady, E.A., Shaw, R.A., Goodenough, K.M. (2018) A review of the mineral potential of Liberia. Ore Geology Reviews, 101. 413-431 doi:10.1016/j.oregeorev.2018.07.021 | Journal (article/letter/editorial) | | range of metals and industrial minerals, including gold, iron ore, diamonds, base metals, bauxite, manganese...manganese, fluorspar, kyanite and phosphate. Known gold deposits, mostly orogenic in style, occur widely...associated with north-east-trending regional shear zones. Gold mining commenced at the New Liberty deposit in western...western Liberia in 2015, while significant gold resources have also been identified at several other...of iron ore is currently restricted to a single mine, Yekepa, in the Nimba Range. Other important deposits |  | Pienaar, D., Guy, B.M., Hofmann, A., Viljoen, K.S. (2015) A Geometallurgical Characterization of the Vaal Reef A-Facies at the Moab Khotsong Mine, Klerksdorp Goldfield, South Africa. South African Journal of Geology, 118 (4) 455-472 doi:10.2113/gssajg.118.4.455 | Journal (article/letter/editorial) | | KHOTSONG MINE, KLERKSDORP GOLDFIELD, SOUTH AFRICA D. PIENAAR Geosciences Department, Moab Khotsong mine, AngloGold...AngloGold Ashanti, Private Bag X 5010, Vaal River, 2621, South Africa Department of Geology, University...marked decline in the gold recovery factor of ore from the Moab Khotsong mine, treated through the Great...Reef A-facies conglomerate at the Moab Khotsong mine. This paper serves to document the results of the...Khotsong mine for mineralogical study and metallurgical tests. Laboratory scale leaching tests for gold (cyanide) |  | Agangi, Andrea, Hofmann, Axel, Eickmann, Benjamin, Marin-Carbonne, Johanna, Reddy, Steven M. (2016) An atmospheric source of S in Mesoarchaean structurally-controlled gold mineralisation of the Barberton Greenstone Belt. Precambrian Research, 285. 10-20 doi:10.1016/j.precamres.2016.09.004 | Journal (article/letter/editorial) | | source of S in Mesoarchaean structurally-controlled gold mineralisation of the Barberton Greenstone Belt...Available online 16 September 2016 Keywords: Archaean Gold Barberton Greenstone Belt Multiple S isotopes a...Belt of southern Africa hosts several Mesoarchaean gold deposits. The ores were mostly formed in greenschist...porphyries, which has led to the hypothesis that gold may have been sourced from magmas. Because the transport...Belt of southern Africa hosts some of the oldest gold mineralisation known (Anhaeusser, 1976; de Ronde |  | | Journal (article/letter/editorial) | | Chile The Capricornio epithermal gold–silver–copper deposit, in the Region II, Chile, consists of multiple...traced deeper than 150–200 m from the surface, and gold is enriched mainly in the first 50 m. The reason...from El Peñón and from other deposits in the region (Warren, Archibald and Simmons 2008) indicate that...archaean-layered mafic intrusion in the Fiskefjord region, southern West Greenland Paul EB Armitage*1 and...intrusion are dispersed throughout the Fiskefjord region of southern West Greenland. A chain of fragments |  | | Journal (article/letter/editorial) | | Discriminating fluid source regions in orogenic gold deposits using B-isotopes James S. Lambert-Smith...Discriminating fluid source regions in orogenic gold deposits using B-isotopes, Geochimica et Cosmochimica...Discriminating fluid source regions in orogenic gold deposits using B-isotopes 2 James S. Lambert-Smitha*...SMSZ 1 12 Abstract 13 The genesis of orogenic gold deposits is commonly linked to hydrothermal ore...Tourmaline is a common gangue mineral in 16 orogenic gold deposits. It is stable over a very wide P-T range |  | | Journal (article/letter/editorial) | | Geology, v. 115, no. 2, pp. 241–277 Gold Remobilization: Insights from Gold Deposits in the Archean Swayze...upgrading of Au that is widely applicable to orogenic gold settings. Data for the Jerome deposit indicate that...development coincident with the presence of native gold and accessory sulfide phases, that are strongly...0.5 to 5 in early pyrite to ≈9 in the new native gold (900 Au fineness) and (2) incorporation of Ag into...39 historic deposits sampled, along with native gold filling structurally favorable sites in vein quartz |  | Acosta-Gongora, P., Gleeson, S. A., Samson, I. M., Ootes, L., Corriveau, L. (2015) Gold Refining by Bismuth Melts in the Iron Oxide-Dominated NICO Au-Co-Bi ( Cu W) Deposit, NWT, Canada. Economic Geology, 110 (2) 291-314 doi:10.2113/econgeo.110.2.291 | Journal (article/letter/editorial) | | ECONOMIC GEOLOGISTS Vol. 110 March–April No. 2 Gold Refining by Bismuth Melts in the Iron Oxide-Dominated...observed in arsenopyrite II. The second mechanism of gold refining is explained by the occurrence of contemporaneous...hydrothermal fluids that also could have fractionated gold during transport in solution and deposited it in...Ca-Fe-amphibole-magnetite-biotite-altered rocks. Overall, the gold upgrading at NICO is consistent with the liquid...on gold concentration in this and potentially other Au-Bi-Te-Fe-As-S-rich iron oxide-copper-gold (IOCG) |  | Selvaraja, Vikraman, Fiorentini, Marco. L., Jeon, Heejin, Savard, Dany D., LaFlamme, Crystal K., Guagliardo, Paul, Caruso, Stefano, Bui, Thi-Hao (2017) Evidence of local sourcing of sulfur and gold in an Archaean sediment-hosted gold deposit. Ore Geology Reviews, 89. 909-930 doi:10.1016/j.oregeorev.2017.07.021 | Journal (article/letter/editorial) | | of local sourcing of sulfur and gold in an Archaean sediment-hosted gold deposit Vikraman Selvaraja, Marco...of local sourcing of sulfur and gold in an Archaean sediment-hosted gold deposit, Ore Geology Reviews (2017)...of local sourcing of sulfur and gold in an Archaean sediment-hosted gold deposit 15 Abstract 16 Determining...processes. The Neoarchaean Paulsens sediment-hosted gold deposit (~1 Moz @ 18 7.6 g/t) located in the Pilbara...characteristics 19 of Phanerozoic shale hosted gold deposits (e.g. Huijiabao Trend, Northern Carlin |  | | Conference Proceedings (Volume) | | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...copper, 51 700 tonnes of silver and 1,9 tonnes of gold. Photo: Olof Martinsson, Luleå University of Technology...Petrology of low-sulphide PGE ores of the Norilsk region ................................................Norman Pearson, Jan Kramers & Dmitry Kuzmin Orogenic gold deposits .. ................................................................... 1085 The orogenic gold mineral system . . ............................ |
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