 | | Journal (article/letter/editorial) | | NOTE Zinc–germanium ores of the Tres Marias Mine, Chihuahua, Mexico Bernhardt Saini-Eidukat & Frank Melcher...2008 Abstract The Tres Marias carbonate-hosted Zn–Ge deposit in Chihuahua, Mexico contains sphalerite...sphalerite with the highest average Ge (960 ppm) and willemite with the highest reported Ge contents of Mississippi-Valley-type...enriched in silicates such as hemimorphite and willemite. The gangue assemblage includes goethite, hematite...greenockite, cinnabar, and descloizite also occur. Willemite occurs as interstitial replacement of sphalerite |  | Ostendorf, Jörg, Henjes-Kunst, Friedhelm, Schneider, Jens, Melcher, Frank, Gutzmer, Jens (2017) Genesis of the Carbonate-Hosted Tres Marias Zn-Pb-(Ge) Deposit, Mexico: Constraints from Rb-Sr Sphalerite Geochronology and Pb Isotopes. Economic Geology, 112 (5) 1075-1088 doi:10.5382/econgeo.2017.4502 | Journal (article/letter/editorial) | | Genesis of the Carbonate-Hosted Tres Marias Zn-Pb-(Ge) Deposit, Mexico: Constraints from Rb-Sr Sphalerite...Germany Abstract The Tres Marias Zn-Pb-(Ge) deposit in Chihuahua, northern Mexico, is hosted by mid-Cretaceous... and late-stage hydrothermal calcite of the Tres Marias deposit overlap with values for coeval magmatic-hydrothermal...deposits of northern Chihuahua. We conclude that the formation of the Tres Marias deposit is related to...for sulfides and calcite from the carbonate-hosted Tres †Corresponding author: e-mail, joerg.ostendorf@gmx |  | Choulet, Flavien, Barbanson, Luc, Buatier, Martine, Richard, James, Vennemann, Torsten, Ennaciri, Aomar, Zouhair, Mohamed (2017) Characterization and origin of low-T willemite (Zn2SiO4) mineralization: the case of the Bou Arhous deposit (High Atlas, Morocco) Mineralium Deposita, 52 (7) 1085-1102 doi:10.1007/s00126-016-0675-7 | Journal (article/letter/editorial) | | ARTICLE Characterization and origin of low-T willemite (Zn2SiO4) mineralization: the case of the Bou...Springer-Verlag Berlin Heidelberg 2016 Abstract Willemite (Zn2SiO4) usually reported in hypogene non-sulfide...observations, it was possible to establish that willemite replaces primary sphalerite. On the basis of cathodoluminescence...of willemite are distinguished, with evidence of dissolution–reprecipitation processes. Willemite is...the primary sulfide minerals. Depending on the willemite generation, this substitution was positively or |  | | Journal (article/letter/editorial) | | the Tres Marias Zn–Pb–Ge deposit in Mexico and auriferous arsenopyrite from the Ashanti Au mine in Ghana...Ghana are investigated. Sphalerite from Tres Marias contains Ge concentrations of up to 1430 lg/g and...or exsolutions. In arsenopyrite from the Ashanti mine, Au occurs as oriented sub-microscopic discrete...determined by XANES data in sphalerite from Tres Marias (Cook et al., 2015). Other authors suggest coupled...(#4932, #4933, #4934, #4937) from the Tres Marias deposit in Mexico (Figs. 1a–1c) and five foils of arsenopyrite |  | | Journal (article/letter/editorial) | | patchily replaced by the hydrothermal Zn-silicate willemite (Kamona & Friedrich 2007). The entire assemblage...have shown that Ge at Kabwe is only hosted in willemite, and not in typical supergene phases. At Rio Crystal...2009. Zinc-germanium ores of the Tres Marias Mine, Chihuahua, Mexico. Miner Deposita. 44:363–370. |  | | Journal (article/letter/editorial) | | (±Ga and In). The non-sulfide ores comprise: (1) willemite-dominated zones encasing massive sulfide orebodies...oxidation stages dominated by the formation of willemite (W1 and W2), and a further event characterized...of anhydrous Zn silicates and oxides, such as willemite, zincite, franklinite, coexisting locally with...discovered in 1902, and the sulfides were mined until mine closure in 1994 (Kamona and Friedrich, 2007). During...its lifespan, Kabwe was the most significant Zn-Pb mine in Zambia, with production from the sulfide bodies |  | Mondillo, Nicola, Arfè, Giuseppe, Herrington, Richard, Boni, Maria, Wilkinson, Clara, Mormone, Angela (2018) Germanium enrichment in supergene settings: evidence from the Cristal nonsulfide Zn prospect, Bongará district, northern Peru. Mineralium Deposita, 53 (2) 155-169 doi:10.1007/s00126-017-0781-1 | Journal (article/letter/editorial) | | cerussite) and the Zn-silicates hemimorphite, willemite, and sauconite (Large 2001; Hitzman et al. 2003)...arsenates (olivenite, adamite), and silicates (willemite) (Melcher 2003; Höll et al. 2007, and references...Ge (Song 1984; Song and Tan 1996). The Tres Marias Mine in Mexico, considered a low-temperature MVT ore...Ge (Melcher 2003), whereas goethite in the Apex Mine was found to host up to 5310 ppm Ge (Bernstein 1985...analogy with Si-Ge substitution observed in natural willemite; Saini-Eidukat et al. 2016) and considering instead |  | Mondillo, Nicola, Accardo, Mariafrancesca, Boni, Maria, Boyce, Adrian, Herrington, Richard, Rumsey, Mike, Wilkinson, Clara (2020) New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through trace elements and oxygen isotope geochemistry. Ore Geology Reviews, 118. 103307 doi:10.1016/j.oregeorev.2019.103307 | Journal (article/letter/editorial) | | Journal Pre-proofs New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through... Wilkinson, New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through...Elsevier B.V. 1 New insights into the genesis of willemite (Zn2SiO4) from zinc 2 nonsulfide deposits, through...East Kilbride Scotland 1 19 Abstract 20 Willemite is a common mineral mainly occurring in the so-called...comprehensive compilation of 23 geochemical data on willemite is currently lacking, the aim of this study is |  | | Journal (article/letter/editorial) | | structure on natural minerals from the Henderson #2 mine in Canada (Goh et al., 2010); and a study on the...concentrations of Au in mica minerals from the Gonçalo Li Mine (Portugal), with the aim of developing an exploration...of the ore characterisation workflow early in the mine life cycle. - Whereas the sXRF mapping provides...overlying the polymetallic sulphide ores of the Mikawa mine (Japan). Saini-Eidukat and co-workers (Saini-Eidukat...trace Ge and Pb in the secondary zinc silicate willemite (Zn2SiO4); whereas (Stavinga et al., 2017) used |  | | Report (volume) | | ___.___--__-___ Geologic sketch map of Sao Joao mine and Pimenteira prospect__ _ --------------__-_-___-_---__---_...including anglesite, cerrusite, smithsonite, and willemite. Other secondary minerals include minor amounts...properties. Electric power is not yet available for mine use. Small diesel powerplants furnish Januaria and... is capable of providing adequate water for the mine. A mill for concentration of ores from the Itacarambi...beds are flat lying, at the mine they dip 5°-15° E., and east of the mine they dip 20° E. The shale and |  | | Journal (article/letter/editorial) | | Ag), 2. Morro Agudo Zn – Pb sulfide underground mine complex in the central-north part of the district...Zn, 2% Pb), 3. Ambrosia Zn – Pb sulfide open pit mine in the northern part of the district (resource of...mineralization occurs in the N-orebody at the Morro Agudo mine as laminations containing disseminated sphalerite...silicate mineralization (principal ore-mineral willemite, Zn2SiO4) is hosted by the Serra do Poço Verde...in the region of the Morro Agudo Zn – Pb sulfide mine (Figs. 1, 2; Monteiro et al., 2006). The Serra da |  | | Report (issue) | | the drainage to the Atlantic and to the Gulfs of Mexico and St. Lawrence _____________________________...to the Atlantic Ocean from that to the Gulf of Mexico and St. Lawrence River. Figure 2, a subenvelope...the drainage to the Atlantic and to the Gulfs of Mexico and St. Lawrence. Localities referred to in text...forms the continental divide between the Gulf of Mexico and Atlantic drainages. The relief and alti tudes...Argillization in the Cochise Mining District, New Mexico: Clays and Clay Minerals, v. 6, p. 342-368. Carlisle |  | | Report (volume) | | St S Com Maine State Survey Commission Mex I G .Mexico, Instituto GeolOgico Miss G S .Mississippi State...95; Prouty, 09, 12; Smith (E A), 76a; Labausage mine: Evans (A W), 09. Raccoon Mountain field: Gibson...Mountain: Aldrich (jr), 08 Talladega Co., Gold Log mine: Bastin, 16a Granites: Watson, 10 Iron: Chauvenet...Alabamornis: A'lei, 06: Lucas, 08 Alabaster, Tecali, .Mexico: Barcena, 748 Aladdin folio (no. 128): Darton,...Peninsula: Grant (U S), 09b, lOs Kennicott Bonanza mine: Storm, 10 Ketchikan and Wrangell districts: Wright |  | | Journal (volume) | | Manager, Co., New York. State Engineer and Ex-officio Mine Inspector, Bismarck, N. D. Collins, George Coal...James Gold in Utah. Lead in Utah. Chief State Mine Inspector, Hartford, Ark. Coal Mining in Arkansas...Alabama Iron Market. Muzquiz, Coahuila, Mexico. Coal Mining in Mexico. iii THE MINERAL INDUSTRY IV Fulton... Lead in British Columbia. Jones, John D. Chief Mine Inspector, Denver, Colo. Coal Mining in Colorado...Metallurgy and Uses of Alumi¬ num in 1909. State Mine Inspector, Boise, Idaho. Morrison, W. Professor |  | | Report (volume) | | petr61eo vols. 34, 35. Mexico City. Boletfn de petr61eo y minas vols. 1-8. Mexico City. Boletin minero...minero vols. 34-35. Mexico City. Boston Society of Natural History: Bulletins 66-79, name changed with no....Iowa City, Iowa. Irrigaci6n en Mexico vols. 6-15, 17-20 (nos. 1-3). Mexico City. Japan Imperial Earthquake...6gico-mineras 1, 2; Folleto de divulgaci6n 32, 35-39. Mexico City. 12 BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY...N. J. New Mexico School of Mines: Bulletins 6-14; Circulars 1-5. Socorro, N. Mex. New Mexico State Engineers' |  | | Book (volume) | | the biographical article, Clerke, A. M. A. N. Mexico: Moliere. See the biographical article, Lang,...biographical article, Dilke, Sir C. W., Bart. Mexico: ' Mendicant Movement and Orders; Monasticism;...of Manchester. H. W. C. D. Mediterranean Sea; Mexico, Gulf of. Metempsychosis. Professor of New Testament...Portfolio of Musical A rchaeology. Orchestra. L. Bl. Mexico: Modern History. Professor of Greek at Joint-author...John’s College, Cambridge. tion Fund. R. C. P. Mexico: Geology. { Medici M.A., F.S.A. Reginald Crundall |
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