 | | Journal (article/letter/editorial) | | H ydrothermal copper deposits are dominated in their primary mineralogy by copper-bearing sulfide minerals...2005), the sulfides become unstable and oxidize. Copper released from this reaction can form a plethora...âsupergeneâ minerals, ranging from simple native copper and copper oxides to complex secondary minerals such...earthy masses. Olivenite is a hydrated arsenate of copper with variable zinc. Although of very wide distribution...restricting its occurrence relative to that of copper as a whole. It forms a solid-solution series with |  | Bouabdellah, Mohammed, Boukirou, Wissale, Potra, Adriana, Melchiorre, Erik, Bouzahzah, Hassan, Yans, Johan, Zaid, Khadra, Idbaroud, Mohammed, Poot, Julien, Dekoninck, Augustin, Levresse, Gilles (2021) Origin of the Moroccan Touissit-Bou Beker and Jbel Bou Dahar Supergene Non-Sulfide Biomineralization and Its Relevance to Microbiological Activity, Late Miocene Uplift and Climate Changes. Minerals, 11 (4) 401 doi:10.3390/min11040401 | Journal (article/letter/editorial) | | BongarĂĄ district in northern Peru, Kabwe Zn-Pb deposit (formerly known as âBroken Hillâ) in central Zambia...Zambia, Tsumeb in Namibia, and Apex deposit in the United States ([6,8â10] and references therein). Since...dependent not only on the geologic setting of each deposit but also on the initial mineralogy, including the...âcerussite pierreuseâ. (D) Hand sample of high-grade copper rich-ore showing brecciated chalcopyrite (Cpy)...hanging-wall rocks (i.e., âToit Jauneâ,; [5]). Copper mineralization may also extend into the overlying |  | | Report (issue) | | 3303-33rd Street N.W., Calgary, Alberta T2L 2A 7 A deposit copy of this publication is also available for...Smithfield galena occurrence College Grant copper mine Copper Lake copper mine 23 23 24 25 27 29 29 29 30 30...exposures Belle Marche quarry Pleasant Bay lead deposit Dingwall gypsum quarry Ingonish gypsum quarry Point...quarry Marble Mountain quarry Manchester iron deposit Erinville (Bums) mine Erinville 'Black Granite'...Brook iron deposit Moydart Point fossils Knoydart Point copper Melmerby Beach Caribou copper mine Oliver |  | | Journal (article/letter/editorial) | | here once was a time when most green acicular copper minerals were routinely labeled brochantite, a...issue. Brochantite, a simple hydrated sulfate of copper with the formula Cu4(SO4)(OH)6, is typically seen...and can be contacted at the addresses above. 48 copper deposits found in arid regions. Common accessory...from the weathered zones of deposits containing copper sulfides at depth. It occurs sparingly at the old...in the shallow stopes of the Chestatee copper/pyrite deposit, Lumpkin County, Georgia (Cook and Hughes |  | | Report (issue) | | Houghton County lava flow. Small specks of native copper occur as inclusions near the surface and between... JOHNSON, Cadillac, 1963-1979 HILARY F. SNELL, Grand Rapids, 1971-1976 CHARLES G. YOUNGLOVE, Allen Park...inhabitants had been using easily accessible native copper for ornament and weapon and left their mark on...ancient history as the state's earliest miners. Their copper artifacts reached all corners of the continent...continent through existing trade channels and a large copper knife from "Saguenay", thought to be the Upper Great |  | | Book | | rteld L'AsSOCIATION GE.OLOGIQUE OU CANADA (AGC) est la soaete nationale canadienne des sciences de la...1'0\lancement de la geok>gie et de sensbhser le grand publtc ~ saences de la Terre Ele COOVefld environ...⢠...... ⢠....... ⢠...................... 32 Copper .......â˘........ . ..... . .. . ... 34 Covellite..... ⢠....... ⢠...... ⢠.............. ⢠.... Goethite , . ..... â˘. , ..... . ... , â˘â˘â˘ Gcld ..........Iii= Iii= ~ Bismuth .... .. â˘â˘â˘. , . â˘â˘â˘ _. â˘â˘ Copper . . . . â˘. . . . . . . . . . . . . . . . . . |  | | Journal (issue) | | Milpillas mine, opened in 2006, is an unde,ground copper mine in Sonora, Mexico operated by Industrias Petioles...enriched Porphyry Copper Deposit, which proved to contain multiple bonanzas of world-class copper minerals, especially...INTRODUCTION The Milpillas mine is an underground copper mine in Sonora, Mexico operated by the Mexican...discovered, deeply oxidized and enriched Porphyry Copper Deposit (the term is traditionally capitalized in geological...crystallized examples of other copper minerals, including several rare copper vanadate and arsenate species |  | | Book | | billion tons. Other countries, such as Australia and France and doubtless the U.S.S.R., likewise established...broken and the texture is brecciated ( Elclorado deposit, Great Bear Lake, Canada; Gold.fields district...Botryoidal pitchblende, St. Priest vein, Forez, France ( X l) ( Geffroy and Sarcia, 1954). 29 ~ ~ ...pitchblende, St.Remy-Stll'-Durolle, Forez Mts., France. Pyrite crystals (white) on 1ight; in quartz (...also replaces core. Bigay mine, Lachaux, Auvergne, France ( X 100) ( Geffroy and Sarcia, 1954). 30 Descriptions |  | Dill, H. G., Melcher, F., Kaufhold, S., Techmer, A., Weber, B., Baumler, W. (2010) POST-MIOCENE AND BRONZE-AGE SUPERGENE Cu-Pb ARSENATE - HUMATE- OXALATE - CARBONATE MINERALIZATION AT MEGA LIVADI, SERIFOS, GREECE. The Canadian Mineralogist, 48 (1) 163-181 doi:10.3749/canmin.48.1.163 | Journal (article/letter/editorial) | | Livadi on the Isle of Serifos, Greece, arsenical copper mineralization of hydrothermal origin formed in...of oxides, hydroxides and arsenates: stage I (goethite, mixture of fine-grained FeâAsâSbâCu minerals...dâoxydes, dâhydroxydes et dâarsenates: stade I (goethite, mĂŠlange de minĂŠraux FeâAsâSbâCu Ă grains fins...impliquant arsenates, humates et carbonates Ă Serifos, est importante de trois façons. Elle aide Ă mieux comprendre...mineralization has mainly been studied in porphyry copper deposits by Brimhall et al. (1985), Lichtner & |  | | Journal (article/letter/editorial) | | associated with porphyry copper deposits in the middle part of Kerman copper belt, SE Iran Mahdieh Hosseinjani...Spectroscopy Analytical spectral device (ASD) Porphyry copper deposits (PCDs) Alteration Mineral exploration...to deďŹne alteration zones adjacent to porphyry copper deposits (PCDs), in the central part of Kerman...jarosite, and iron oxyhydroxides (e.g. hematite, goethite) of hydrothermal and supergene origin. IdentiďŹed...the most important characteristics of porphyry copper deposits (PCDs) is the type and distribution pattern |  | | Book | | HYDROTHERMAL DEPOSITS .........................24 NATIVE COPPER DEPOSITS ........................... 24 HISTORY............................... 27 CONCLUSIONS ON COPPER .......................29 SPECIAL MATERIALS ....Sandstone (early Cambrian), a stream and lake deposit; and many of the youngest (Pennsylvanian), which...metamorphic processes. For example, the native copper deposits of the Keweenaw, while occurring in basaltic...processes. Because of the discovery of the native copper and iron deposits in the Northern Peninsula, that |  | | Journal (article/letter/editorial) | | LETTER Diagenetic origin of the stratiform CuâCo deposit at Kamoto in the Central African Copperbelt Philippe...Lorraine-CNRS-CREGU, BP 70239, 54506 VandĹuvre-lès-Nancy Cedex, France 3 Geology Department, Faculty of Science, Menoufia...Lorraine, BP 20, 54501 VandĹuvre-lès-Nancy Cedex, France sulfides by younger sulfide phases. Alternatively...dating . Sediment-hosted deposits . Diagenetic copper sulfides Introduction The origin and formation...daughter elements. ReâOs dating of sedimenthosted copper deposits has been successful in the Kangdian Miner |  | | Journal (article/letter/editorial) | | ratio of the length to the maximum width of the deposit >15 and are characterized by ribbon- like layers...principally of altered fine clastic ore facies. The Jusa deposit appears to have formed in two stages: deposition...deposition of colloform pyrite followed by deposition of copper- zinc- lead sulfides characterized by the close...Kojima, S., Espinoza, S. & Definis, A. AngĂŠlica copper deposit: Exotic type mineralization in the Tocopilla...427-434, 5 figs, 1 table, 2007. The AngĂŠlica copper deposit is situated at the southernmost sector of the |  | | Journal (article/letter/editorial) | | represented by large specimens, are Predominant in the deposit, or have high scientific interest appear in UPPERCASE...enclosing bundles of acicular and minute balls of GOETHITE. earthy hematite, quartz (Broadhead 1873b, 1877)...1952). Figure 3. Malachite, 4.2 cm high, Rueppele copper mine, Stanton, Franklin Co. Glenn Williams specimen...Bluff CALCITE as yellow scalenohedra, DOLOMITE, goethite (limonite), QUARTZ. Callaway County Knight bank...aragonite, barite, CALCITE, CHALCOPYRITE, DOLOMITE, GOETHITE, GYPSUM, hematite, jarosite, KAOLINITE, malachite |  | Poot, Julien, Verhaert, Michèle, Dekoninck, Augustin, Oummouch, Abdellah, El Basbas, Abdelaziz, Maacha, Lhou, Yans, Johan (2020) Characterization of Weathering Processes of the Giant Copper Deposit of Tizert (Igherm Inlier, Anti-Atlas, Morocco) Minerals, 10 (7) 620 doi:10.3390/min10070620 | Journal (article/letter/editorial) | | Characterization of Weathering Processes of the Giant Copper Deposit of Tizert (Igherm Inlier, Anti-Atlas, Morocco)...Abstract: The giant Tizert copper deposit is considered as the largest copper resource in the western Anti-Atlas...carbonates and Fe-oxyhydroxides. The Tizert supergene deposit mainly consists of (i) a residual patchwork of...and relatively high pH conditions. In addition to copper, Ag enrichment is also observed in weathered rocks;...as relatively homogeneous. Keywords: Tizert deposit; copper; weathering; supergene; western Anti-Atlas; |  | | Report (chapter) | | metal Au) lies west of the main Moroccan Bleida copper deposit (1981â 1991) in the central Anti-Atlas (southern...zones. Gold is accompanied by small amounts of copper sulphides (,1% modal chalcopyrite). Scanning electron...system, or a late tectonic orogenic (mesothermal) deposit. The presence of Pd minerals and anomalous cobalt...Anti-Atlas of southern Morocco is a longstanding goldâcopper province (Leblanc & Lancelot 1980). One of its...its more notable systems is the Bleida copper deposit, which was mined from 1981 to 1997 (Leblanc & Billaud |  | | Report (issue) | | Catherine St. We.YI or through your booksdler A deposit copy of this publication is also available for... ¡ College copper mine .â˘.â˘â˘.â˘....â˘....................â˘â˘â˘â˘â˘â˘.. ; ⢠. Copper Lake copper mine â˘.â˘...â˘.............................. Pleasant Bay lead deposit ⢠⢠⢠. ⢠⢠⢠⢠⢠⢠. . ⢠. ⢠⢠â˘. ⢠. ⢠⢠. â˘.... . . . . . . . . . . . . . ⢠Manchester iron deposit...................................... Erinville... . . . . ⢠. . . . . ⢠⢠⢠⢠⢠. Donahue Lake deposit . . . . . . . . . ⢠⢠⢠. ⢠. ⢠⢠⢠. . . . ⢠⢠|  | Mambwe, Pascal, Shengo, Michel, Kidyanyama, ThĂŠophile, Muchez, Philippe, Chabu, Mumba (2022) Geometallurgy of Cobalt Black Ores in the Katanga Copperbelt (Ruashi Cu-Co Deposit): A New Proposal for Enhancing Cobalt Recovery. Minerals, 12 (3) 295 doi:10.3390/min12030295 | Journal (article/letter/editorial) | | Black Ores in the Katanga Copperbelt (Ruashi Cu-Co Deposit): A New Proposal for Enhancing Cobalt Recovery...Black Ores in the Katanga Copperbelt (Ruashi Cu-Co Deposit): A New Proposal for Enhancing Cobalt Recovery...mambwematanda@kuleuven.be; Tel.: +243-810242310 Abstract: Copper-cobalt deposits in the Central African Copperbelt...Copperbelt belong to the Sediment-Hosted Stratiform Copper (SHSC) type and are situated in the Neoproterozoic...Mineralised Zone (BOMZ) unit from the Ruashi Cu-Co deposit as a case study. Based on results from fieldwork |  | | Journal (article/letter/editorial) | | the occurrence of an extensive supergene zone of copper enrichment, which was extensively mined in the...oxidised material an extensive range of secondary copper chlorides, oxy-chlorides, sulphates, oxides and...and arsenates occur along with native copper, silver and bismuth, chlorargyrite, scorodite, jarosite and...within fractures and cavities within the hematite-goethite-limonite cherty gossan along with occasional quartz...of Au96_97Ag2_3 with minor amounts of iron and copper. The high iron values may be due to interference |  | Sikka, Desh B., Petruk, William, Nehru, Cherukupalli E., Zhang, Zheru (1991) Geochemistry of secondary copper minerals from Proterozoic porphyry copper deposit, Malanjkhand, India. Ore Geology Reviews, 6 (2) 257-290 doi:10.1016/0169-1368(91)90026-4 | Journal (article/letter/editorial) | | Geochemistry of secondary copper minerals from Proterozoic porphyry copper deposit, Malanjkhand, India Desh...Geochemistry of secondary copper minerals from Proterozoic porphyry copper deposit, Malanjkhand, India. In:...been recognized at the Proterozoic porphyry copper deposit, Malanjkhand, India. They are: (1) primary...and other secondary copper sulfides; and (3) intensely oxidized ore containing copper sulphates, carbonates...carbonates, chlorides, oxides and native copper. The Malanjkhand chalcopyrite alters, by continued oxidation |  | | Journal (article/letter/editorial) | | blue minerals. Most of them contain significant copper, and it is often a good guess that blue crystals...a relatively large possible number of secondary copper minerals. Some are quite rare, others are common...Aurichalcite is a carbonate-hydroxide of zinc and copper with the formula (Zn,Cu)5(CO3)2(OH)6. Some analyses...oxide zones of deposits containing primary zinc and copper sulfides. Although generally considered to be a...Berks County, Pennsylvania; and as blue tufts on goethite from the Pontiac mine, Halifax County, Virginia |  | Dilles, John H., Solomon, G. Cleve, Taylor, Hugh P., Einaudi, Marco T. (1992) Oxygen and hydrogen isotope characteristics of hydrothermal alteration at the Ann-Mason porphyry copper deposit, Yerington, Nevada. Economic Geology, 87 (1) 44-63 doi:10.2113/gsecongeo.87.1.44 | Journal (article/letter/editorial) | | Hydrothermal Alteration at the Ann-MasonPorphyry Copper Deposit, Yerington, Nevada* JOHN H. DILLES, Department...are not de- emplacementis associatedwith porphyry copper scribedat mostotherporphyrydepositsandhavenot ...surface(Fig. 1; andfig. 2 from the Ann-Masonporphyry deposit,Yerington of Dilles, 1987). Hydrothermal alteration...intrusivephasesof the batholithis plaYerington mine porphyry deposit (Einaudi, 1970b; gioclase(oligoclase_+andesinc)...EXPLANATION SAMPLE NUMBER 8180 IN PER MIL CU DEPOSIT ATTITUDE NORMAL FAULT ALLUVIUM IGNIMBRITES |  | | Book | | sulfate). Azurite (blue copper carbonate) can react to form malachite (green copper carbonate). If malachite...well, hot hydrothermal fluids often carry and deposit valuable minerals in veins. The Stories Minerals...miles) north of Yellowknife, the Acasta River deposit is believed to be 3.5 to 4 billion years old â...of malachite and blue of azurite are both due to copper, an element that can produce different colors in...impurities. Blue and green specimens contain traces of copper, pink examples contain cobalt, and yellow ones |  | | Report (volume) | | Orris C. Gold-Distribution of Gold in Porphyry Copper Deposits By Dennis P. Cox and Donald A. Singer...Elements-Occurrences in the Bethlehem Porphyry Copper Deposits, Highland Valley, British Columbia By...Orris (C) Gold-Distribution of Gold in Porphyry Copper Deposits, by Dennis P. Cox and Donald A. Singer...Elements-Occurrences in the Bethlehem Porphyry Copper Deposits, Highland Valley, British Columbia, by...published in a single volume, "Mineral Deposit Models," with 87 deposit models that include data from over |  | Riveros, K., Veloso, E., Campos, E., Menzies, A., VĂŠliz, W. (2014) Magnetic properties related to hydrothermal alteration processes at the Escondida porphyry copper deposit, northern Chile. Mineralium Deposita, 49 (6) 693-707 doi:10.1007/s00126-014-0514-7 | Journal (article/letter/editorial) | | alteration processes at the Escondida porphyry copper deposit, northern Chile K. Riveros & E. Veloso & E...magnetic methods. In the Escondida porphyry Cu deposit of northern Chile, each hydrothermally altered...of the coarsest magnetic grain sizes within the deposit. Optical analyses and susceptibilityâtemperature...magnetic properties of the wall rock in the Escondida deposit. These magnetic methods can be considered a sensitive...operation of porphyry Cu deposits. Keywords Escondida deposit . FeâTi oxide minerals . Hydrothermal alteration |
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