 | Vikre, P. G., Graybeal, F. T., Fleck, R. J., Barton, M. D., Seedorff, E. (2014) Succession of Laramide Magmatic and Magmatic-Hydrothermal Events in the Patagonia Mountains, Santa Cruz County, Arizona. Economic Geology, 109 (6) 1667-1704 doi:10.2113/econgeo.109.6.1667 | Journal (article/letter/editorial) | | deposits in Paleozoic carbonate rocks at the Flux mine (~71 Ma). An event at 65 to 62 Ma is marked by emplacement...potassic and sericitic alteration and a near-surface chalcocite-enargite resource (60 Ma) that is associated...a Cu-Mo breccia deposit at Red Hill (Four Metals mine), both of which formed in large-volume quartz monzonite...near-surface, slightly younger (~59–58 Ma) enargite-chalcocite-tennantite resource that occurs in quartz feldspar...Hardshell Ag resource and the Three R supergene chalcocite resource, are distal deposits of the Sunnyside |  | | Journal (article/letter/editorial) | | secondgeneration bornite+chalcopyrite(±covellite±chalcocite). Keywords O’okiep . Namaqualand . Copper . Koperberg...(Fig. 2; then Springbokfontein) in 1852, and the mine produced about 15,000 tons of ore averaging 10–27%...depth of 200– 250 m. The Springbok Mine was the first formal mine in South Africa: it was opened 15 years...the Namaqua Copper Company that worked in the Concordia area (Fig. 2). The earliest comment on the geology...Tweefontein, Spektakel, Wheal Julia, Hester Maria (now Concordia), Skaaprivier, and Springbok Mines (Fig. 2; cf |  | Perelló, José, Sillitoe, Richard H., Yakubchuk, Alexander S., Valencia, Victor A., Cornejo, Paula (2017) Age and tectonic setting of the Udokan sediment-hosted copper-silver deposit, Transbaikalia, Russia. Ore Geology Reviews, 86. 856-866 doi:10.1016/j.oregeorev.2016.11.004 | Journal (article/letter/editorial) | | typical, high-grade, disseminated and veinlet chalcocite-bornite mineralization is well exposed. Titanite...fraction returning a concordia age of 1895.3 ± 9.7 Ma and the veinlet fraction a concordia age of 1896.7 ±...Combination of both titanite fractions produced a concordia age of 1896.2 ± 6.2 Ma. ACCEPTED MANUSCRIPT...The principal Cu-bearing sulfide minerals are chalcocite and bornite, which constitute >80% of the potentially...potentially economic hypogene mineralization. The chalcocite-group minerals include djurleite along with subordinate |  | Perelló, José, Valencia, Víctor A., Cornejo, Paula, Clifford, John, Wilson, Alan J., Collins, Greg (2019) Timing of sediment-hosted Cu-Ag mineralization in the Trans-Hudson orogen at Janice Lake, Wollaston Domain, Saskatchewan, Canada. Mineralium Deposita, 54 (1) 81-100 doi:10.1007/s00126-018-0806-4 | Journal (article/letter/editorial) | | Accepted: 26 March 2018 # Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract The Janice...Janice Lake. Titanite crystals, intergrown with chalcocite over a strike-length of ~ 2 km of Cu-bearing...titanite ages effectively date the associated chalcocite-dominated sediment-hosted Cu-Ag mineralization...mineralization is dominated by native Cu and chalcocite, although bornite, chalcopyrite, galena, and...millimetric (0.3 mm), disseminated grains of pure chalcocite in magnetite-bearing bands of coarse-grained |  | | Journal (article/letter/editorial) | | . : . RATELPOORT SYNFORH RIETBERG GRANITE CONCORDIA GRANITE AND GNEISS ( WITH WOLFRAM ~CHIST) GRANULITE...synkinematic with respect to F2 folding (it) the Concordia granite and gneiss that was emplaced during F~...around one of the noritoid bodies has given a UPb concordia intercept age of 1070 m. y. that is believed to...Carolusberg Central, and the "Pearce Vein" in the Nababeep Mine (Fig. 2). Additionally, new U-Pb isotopic data are...noritoid bodies (from Van Zyl, 1967) the Rietberg Mine, the ore-bodies show intensive hydrothermal alteration |  | Harrison, Rachel L., Maryono, Adi, Norris, Malcolm S., Rohrlach, Bruce D., Cooke, David R., Thompson, Jay M., Creaser, Robert A., Thiede, David S. (2018) Geochronology of the Tumpangpitu Porphyry Au-Cu-Mo and High-Sulfidation Epithermal Au-Ag-Cu Deposit: Evidence for Pre- and Postmineralization Diatremes in the Tujuh Bukit District, Southeast Java, Indonesia. Economic Geology, 113 (1) 163-192 doi:10.5382/econgeo.2018.4547 | Journal (article/letter/editorial) | | Tumpangpitu Sample ID/depth (m) Coordinates/RL (m) Mine unit Alteration Mineralization Sedimentary and...ophyllite-barite Pyrite-chalcopyrite-bornite-chalcocite enargite GTD-10-172/363 E174240 N9046440/290...Quartz-kaolinite-pyrophyllite (1) Pyrite-chalcopyrite-bornite-chalcocite (2) Barite (2) Pyrite-enargite (3) Colusite...N9046551/257 FT (1) Biotite Pyrite-chalcopyrite-chalcocite (2) Illite (3) Kaolinite Downloaded...Pyrite-chalcopyrite-bornite13.90 ± 1.20/ 1.2 10 chalcocite; (2) enargite; (3) colusite 13.6 ± 1.30/ 1.31 |  | Han, Zhongkun, Han, Chunming, Xiao, Wenjiao, Zhao, Guochun, Wang, Zhongmei, Ao, Songjian, Zhang, Jien, Wan, Bo (2013) Palaeozoic porphyry Cu–Au and ultramafic Cu–Ni deposits in the eastern Tianshan orogenic belt: temporal constraints from U–Pb geochronology. International Geology Review, 55 (7) 842-862 doi:10.1080/00206814.2012.745977 | Journal (article/letter/editorial) | | chalcopyrite and pyrite, with lesser bornite, chalcocite, digenite, sphalerite, magnetite, and rickardite...talcization, chalcocite Sphalerite, talcization, chalcocite Sphalerite, talcization, chalcocite Sphalerite...Sphalerite, talcization, chalcocite Cu–Ni Cu–Ni Cu–Ni Cu–Ni Cu–Au–Ag Silicification, chloritization, albilization...epidotization Cu–Ni Sphalerite, talcization, chalcocite Alteration Table 1. Basic geologic features...pyrite, and chalcocite Chalcopyrite, pentlandite, native copper, pyrite, and chalcocite pyrrhotite |  | Eslami, Alireza, Malvoisin, Benjamin, Grieco, Giovanni, Aradi, László Előd, Marchesi, Claudio, Cavallo, Alessandro, Montanini, Alessandra, Borghini, Giulio, Mathur, Ryan, Ikehata, Kei, Davis, Donald W., Li, Chun-Hui, Szabó, Csaba (2021) Native copper formation associated with serpentinization in the Cheshmeh-Bid ophiolite massif (Southern Iran). Lithos, 382. 105953pp. doi:10.1016/j.lithos.2020.105953 | Journal (article/letter/editorial) | | Ca-metasomatism. Native copper forms at the expense of chalcocite in the reaction zone. Such a reaction can only...Rajabzadeh, 1998). In the Cheshmeh-Bid chromitite mine, a few pyroxenite dykes and veins crosscutting massive...projecting data along a common Pb mixing line to the concordia curve (see Results below). Titanite from a quartz...found in Zone III (Fig. 6e). Small inclusions of chalcocite (Cu2S) are fully embedded within native copper...from 5 to 38 μg/g as well as some initial Pb. Concordia plots of titanite U–Pb isotopic results are shown |  | | Journal (article/letter/editorial) | | [PJ,ATES LXI-LXV] ABSTRACT In the Wheal Julia mine small cavities occur in a horizontally fractured...and occasionally bornite. In the N ababeep West mine the diorite along a vug zone is well altered to...stalactitic sulphides intergrown with fine crystalline chalcocite. Stalactites and botryoidal knobs are concentrically...commencing with a core of white chalcocite, a layer of blue chalcocite, followed by a bornite layer, and...Wheal Julia copper mine is situated half a Inile west of the village of Concordia, and Nababeep West |  | Remus, M.V.D., Hartmann, L.A., McNaughton, N.J., Groves, D.I., Reischl, J.L. (2000) Distal Magmatic-Hydrothermal Origin for the Camaquã Cu (Au-Ag) and Santa Maria Pb, Zn (Cu-Ag) Deposits, Southern Brazil. Gondwana Research, 3 (2) 155-174 doi:10.1016/s1342-937x(05)70094-0 | Journal (article/letter/editorial) | | disseminated ores, with chalcopyrite, pyrite, bornite, chalcocite, gold, silver and hematite, whereas the Santa...pyrite, chalcopyrite, bornite, chalcocite and native silver. The Camaqu5 Mine was discovered in 1865, and...BRAZIL 0 Deposits and prospects 1 - CaniaquH Mine - Cu, Au 2 - Saiita Maria Deposit - Pb, Zn, Cu,...by a regional transcurrent N30"E fault (Camaqug Mine Fault). Older sedimentary beds of the Bom Jardim...Paragenesis Chalcopyrite, bornite and CamaquB chalcocite ; pyrite, Au and Ag are minor ores Santa Maria |  | | Journal (article/letter/editorial) | | arespatially andgenetically associated withthe 1.1Ga Concordia granite, a silica-rich (70-76wt %),peraluminous...SPEKTAKEL LITTLE Late to post-orogcnic granitoids (Concordia, Rietberg, Kweekfontein Granites) SUITE NAMAQUALAND...Ga igneousrocksin the northernBiehtersveld the Concordia granitehas been regionally termedand province... RietbergGranite M2 highgrade (Rb-Srw.r.) Concordia Granite LittleNamaqualand Suite Moddeffontein...(megacrystic Modderfon- Sheetlike contacts withthe Concordia granitearereported teingraniteandfine-grained |  | CLIFFORD, T. N., BARTON, E. S., RETIEF, E. A., REX, D. C., FANNING, C. M. (1995) A Crustal Progenitor for the Intrusive Anorthosite--Charnockite Kindred of the Cupriferous Koperberg Suite, O'okiep District, Namaqualand, South Africa; New Isotope Data for the Country Rocks and the Intrusives. Journal of Petrology, 36 (1) 231-258 doi:10.1093/petrology/36.1.231 | Journal (article/letter/editorial) | | in the a crustal-melt source for the intrusive Concordia Granite. cupriferous rocks of this anorthosite-charnockite...area is of particular significance sion of the Concordia and Rietberg Granites is believed to be because...grains Springbok (then Springbokfontein) copper mine and zircon rims from the Koperberg Suite records...records the time of its (Fig. 1) was the first formal mine in South Africa. It intrusion, and this is supported...Mines in the O'okiep District Rietberg Granite Concordia Granite Granite Gneiss Lammerhoek Subgroup Khurisberg |  | | Book | | Congress Catalog Card No. 66-17809 Printed in Germany 08 011635 3 PREFACE TO THE T H I R D (GERMAN)...N , Troy, New York, USA G. FRIEDRICH, Aachen, Germany H . FROHBERG, Toronto, Canada R. L A GANZA, North...Pullman, Washington R. A. ZIMMERMANN, Heidelberg, Germany 2 Bamdohr, Theorie Minerals XVÜ ABBREVIATIONS...places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are...(1940). 12 T H E ORE MINERALS FIG. 4 80 X Mouat Mine, Stillwater Valley, Montana RAMDOHR From a border |  | Aleinikoff, J. N., Hayes, T. S., Evans, K. V., Mazdab, F. K., Pillers, R. M., Fanning, C. M. (2012) SHRIMP U-Pb Ages of Xenotime and Monazite from the Spar Lake Red Bed-Associated Cu-Ag Deposit, Western Montana: Implications for Ore Genesis. Economic Geology, 107 (6) 1251-1274 doi:10.2113/econgeo.107.6.1251 | Journal (article/letter/editorial) | | thin sections from five ore and near-ore zones (chalcocite-chlorite, bornitecalcite, galena-calcite, chalcopyrite-ankerite...operated by Revett Minerals, Inc., as their Troy Mine. Spar Lake is one of more than 40 Cu-Ag deposits...recovered from chalcocite, digenite, bornite, and minor chalcopyrite. The chalcocite, digenite, and bornite...McMechan and Price, 1982). 2. Near the Sullivan Mine, British Columbia, chloritegrade metamorphism is...Lower West, and Upper East, were developed after the mine opened in 1980 (Hayes and Einaudi, 1986). Additional |  | | Book | | Design: Hansbernd Lindemann, Berlin. Printed in Germany. Preface More than thirty years ago, microprobe...Lille in France, Severgin in Russia, Vezrer in Germany, Jemson in Britain and other scientists at the...in a series like pyrite-chalcopyrite-bornite-chalcocite and in the formation of complex sulfosalts in...minerals such as pyrite-chalcopyrite-bornite-chalcocite-covellite native copper, etc., where the textural...replacement is arrested in mid-stage, a bornite chalcocite intergrowth remains which consists of triangular |  | Han, Shi-Jiong, Sun, Jing-Gui, Bai, Ling-An, Xing, Shu-Wen, Chai, Peng, Zhang, Yong, Yang, Fan, Men, Lan-Jing, Li, Yi-Xin (2013) Geology and ages of porphyry and medium- to high-sulphidation epithermal gold deposits of the continental margin of Northeast China. International Geology Review, 55 (3) 287-310 doi:10.1080/00206814.2012.695472 | Journal (article/letter/editorial) | | pyrite, and arsenopyrite minor: pyrite, galena, chalcocite, magnetite, and bismuthinite Small sized (178...arsenopyrite, chalcopyrite, tetrahedrite, bismuthinite, chalcocite, and less electrum and native gold Main: pyrite...sphalerite (>5%); minor: tetrahedrite, bornite, chalcocite, and less electrum and native gold Main: pyrite...and marcasite, with minor pyrite, galena, and chalcocite, amongst others. Wall-rock alteration associated...porphyry-like copper deposit (sample JXNCN-4) gave a concordia age of 261.5 ± 5.3 million years (n = 11, MSWD |  | Borg, G., Karner, K., Buxton, M., Armstrong, R., Merwe, S. W. v. d. (2003) Geology of the Skorpion Supergene Zinc Deposit, Southern Namibia. Economic Geology, 98 (4) 749-771 doi:10.2113/gsecongeo.98.4.749 | Journal (article/letter/editorial) | | Halle-Wittenberg, Domstrasse 5, D-06108 Halle, Germany MIKE BUXTON, Exploration and Acquisitions Division...chalcopyrite, and galena as well as secondary chalcocite and colloidal sphalerite (brunckite). The volcanic-hosted...and some 15 km north-northwest of the Rosh Pinah mine in the southernmost Namib Desert, Namibia (Fig....the Martin-Luther University Halle-Wittenberg, Germany. The general geology of the region and the regional...cycles. Thus, a reliable correlation of the Skorpion mine stratigraphy with the more recent regional stratigraphy |  | Mohammaddoost, Hadi, Ghaderi, Majid, Kumar, T. Vijaya, Hassanzadeh, Jamshid, Alirezaei, Saeed, Stein, Holly J., Babu, E.V.S.S.K. (2017) Zircon U–Pb and molybdenite Re–Os geochronology, with S isotopic composition of sulfides from the Chah-Firouzeh porphyry Cu deposit, Kerman Cenozoic arc, SE Iran. Ore Geology Reviews, 88. 384-399 doi:10.1016/j.oregeorev.2017.05.023 | Journal (article/letter/editorial) | | part of the KCMA, ~14 km west of the Meiduk copper mine (Fig. 1). Mineralization is associated with a porphyry...analysis during this study gave a 206 Pb/238U concordia age of 414 ± 10 Ma (2σ , MSWD = 5.3), which is...analysis during this study gave a 206 Pb/238U Concordia age of 612 ± 9 Ma (MSWD = 0.55), demonstrating...and 207Pb/235U = 602 ± 1 Ma (MSWD = 1.7). U–Pb Concordia plots have been constructed using the Isoplot...(C) Replacement of chalcopyrite by bornite and chalcocite. (D) Coexisting molybdenite, pyrite, and chalcopyrite |  | | Journal (article/letter/editorial) | | separated from the RMB 1 Simplified map of Galmoy Mine, Ireland showing the major orebodies samples by...thank Arcon Mines for allowing access to the Galmoy Mine. Imperial College London, University College Dublin...Processes controlling arsenic dispersion in acid mine drainage from Mount Bischoff, Western Tasmania A...rehabilitated, with fresh sulphides exposed in surface mine workings. Acid drainage is being generated by sulphide...arsenic in acid mine drainage (AMD) and its associated sediment at the Mount Bischoff mine site in western |  | Meng, Xuyang, Richards, Jeremy, Mao, Jingwen, Ye, Huishou, DuFrane, S. Andrew, Creaser, Robert, Marsh, Jeffrey, Petrus, Joseph (2020) The Tongkuangyu Cu Deposit, Trans-North China Orogen: A Metamorphosed Paleoproterozoic Porphyry Cu Deposit. Economic Geology, 115 (1) 51-77 doi:10.5382/econgeo.4693 | Journal (article/letter/editorial) | | quartz-sericite schist samples yielded zircon U-Pb upper concordia intercept ages of 2512 ± 12 (2σ, mean square of...basaltic-andesitic sill, yielded a younger zircon U-Pb upper concordia intercept age of 2191 ± 10 Ma (2σ, MSWD = 1.7)...zircon U-Pb ages, with a weighted mean upper concordia intercept age of 2182 ± 7 Ma (2σ, MSWD = 1.3)...granodiorite porphyry yielded an approximate concordia U-Pb age of 2115 ± 31 Ma (2σ, MSWD = 2.3). Two...chlorite-bornite-quartz veins yielded much younger U-Pb upper concordia intercept ages of 1832 ± 16 (2σ, MSWD = 0.48) |  | | Journal (article/letter/editorial) | | (1) the presence of chalcopyrite, bornite and chalcocite and absence of magnetite, haematite, and sulfates...deposit mainly include chalcopyrite, bornite, and chalcocite. Sulfides occur as aggregates or disseminated...reduction techniques follow (Li et al. 2012). Concordia diagrams and weighted mean calculations were constructed...found an average value of -0.7±0.6 ‰ (2s, n=17). Chalcocite sulfur isotope analyses were conducted at Beijing...Beijing Research Institute of Uranium Geology. Chalcocite were combined with an excess of Cu2O, and analysed |  | | Journal (article/letter/editorial) | | with mine workings and waste Figure Geological sketch map with sampling sites after [66] with mine workings...consists of chalcopyrite, sphalerite, bornite, chalcocite, arsenopyrite occurs. Commonly it consists of...of chalcopyrite, sphalerite, bornite, chalcocite, arsenopyrite(Figure (Figure4A–E), 4A– tetrahedrite–tennantite...cubanite,cubanite, covellite,covellite, chalcocite,chalcocite, goethite, Other minerals are: bornite,...The rhyolite sample waswas collected from the the mine waste of the abandoned underground workings of the |  | | Book | | Feld 236 D-6900 Heidelberg, Federal Republic of Germany Prof. Dr. MIGUEL CARDOZO Universidad Nacional de... . . . . . . . . 147 X Contents El Aguilar Mine: An Ordovician Sediment-Hosted Stratiform Lead-Zinc.... . . . . . . . . . . . . . . . . 279 Machcan Mine: A Pb-Zn Ore Deposit in Pucara Sediments of the... Contents Sulfur Isotope Studies in the Zinc-Lead Mine San Vicente, Central Peru H. Gorzawski, L. Fontbote... . . . . . . . . . . . . . . 413 The Agustina Mine, a Volcanic-Hosted Copper Deposit in Northern Chile |  | | Journal (article/letter/editorial) | | at 1020 Ma, thereby precluding the 1060 Ma Concordia granite as the source for mineralizing ¯uids....interpreted as fractionated melts derived from the Concordia granite. However, previous inability to directly...W(Mo) deposits are not temporally related to the Concordia granite as was previously presumed (Raith 1995;...syenogranites to alkali-feldspar granites, comprising the Concordia granite, are peraluminous and show slightly subalkaline...major granite bodies of the Spektakel Suite, the Concordia granite (1064 31 Ma) and the Rietberg granite |  | Duncan, R. J., Stein, H. J., Evans, K. A., Hitzman, M. W., Nelson, E. P., Kirwin, D. J. (2011) A New Geochronological Framework for Mineralization and Alteration in the Selwyn-Mount Dore Corridor, Eastern Fold Belt, Mount Isa Inlier, Australia: Genetic Implications for Iron Oxide Copper-Gold Deposits. Economic Geology, 106 (2) 169-192 doi:10.2113/econgeo.106.2.169 | Journal (article/letter/editorial) | | 22o30’ CSQ 2 1700 - 1725 Ma CSQ 3 1690 - 1650 Ma Mine Intrusives Williams/Naraku Batholith (1545-1500...~35-m-thick magnetite-rich ironstone at the Starra 276 mine. The interval for this sample grades 1.62 g/t Au...magnetite-dominated ironstone at the Starra 251 mine (2.5 km south of the Starra 276 mine). The ironstone is 4.8 m thick...breccia pipe that hosts both supergene (tenorite + chalcocite + chyrsocolla + cuprite + malachite) and hypogene...passes into a mixed sulfide zone that includes chalcocite, bornite, digenite, native Cu, and hematite (Wang |
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