 | | Journal (article/letter/editorial) | | Printed in U.S.A. 40Ar/39Ar analysis of supergene jarosite and alunite: Implications to the p~eoweathering...Abstract-Supergene alunite ( KA13(SO,k( OH)e) and jarosite ( KFe3( S04)2( 0H)6) are often precipitated during...alteration and subsequent supergene oxidation in Goldfield, Nevada. The results indicate that pervasive weathering...southeastern Brazil ( VASCONCELOSet al., 1992, 1993a). Jarosite and alunite, although not as abundant as K-Mn...present in the oxidation zones of ore deposits, acid mine drainages, hydrothermal ore deposits, hot springs |  | Cindy, , Sakai, Ryotaro, Mendoza, Diego M., Konadu, Kojo T., Sasaki, Keiko (2021) Significance of Acid Washing after Biooxidation of Sulfides in Sequential Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali. Minerals, 11 (12) 1316 doi:10.3390/min11121316 | Journal (article/letter/editorial) | | Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali Cindy, Ryotaro Sakai, Diego M. Mendoza ,...real double refractory gold ore from the Syama mines, Mali, which includes 24 g/t of Au and 5.27 wt%...Biotreatment of Double Refractory Gold Ore from the Syama Mine, Mali. Minerals 2021, 11, 1316. https:// Keywords:...example, the Prestea and Bogoso goldfield in Ghana, the Syama mine in Mali, the Sao Bento Mineracao in Brazil...Brazil, the Carlin Gold Mine of Nevada, the California motherlode, and the Pogo mine of Alaska in the USA |  | Desborough, George A., Smith, Kathleen S., Lowers, Heather A., Swayze, Gregg A., Hammarstrom, Jane M., Diehl, Sharon F., Leinz, Reinhard W., Driscoll, Rhonda L. (2010) Mineralogical and chemical characteristics of some natural jarosites. Geochimica et Cosmochimica Acta, 74 (3) 1041-1056 doi:10.1016/j.gca.2009.11.006 | Journal (article/letter/editorial) | | microscopic, thermal, and spectral characteristics of jarosite and natrojarosite minerals. Systematic mineralogic...examination of a suite of 32 natural stoichiometric jarosite and natrojarosite samples from diverse supergene...which suggests the presence of a solvus in the jarosite-natrojarosite system at temperatures below about...end members or coexisting end-member pairs of jarosite and natrojarosite. Quantitative electron-probe...natural hydrothermal samples. Hydronium-bearing jarosite was detected in only one relatively young supergene |  | | Journal (article/letter/editorial) | | Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana R. J. Bowell a a Department of Geology...Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana, International Geology Review, 36:8, 732-752...Sulfide Oxidation and Production of Gossans, Ashanti Mine, Ghana1 R. J. BOWELL Department of Geology, The...at 00:31 19 March 2015 Abstract At the Justice mine, in the Ashanti goldfields of southwestern Ghana...mineralization and weathering products around the Justice mine in the Ashanti Goldfields concession (Fig. 1) were |  | | Book | | metallic deposits in Morocco, Algeria, Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea. Originally...the setting and origin of major deposits in the region, together with information on tonnages and grades...reduced granitoid-hosted gold mineralization in Mali, and present fluid inclusion and stable isotope...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron...Rare-Metal Deposits A Review of Gold Mineralization in Mali . . . . . . . . . . . . . . . . . . 327 David M |  | | Book | | dispersion mechanisms that have operated in each region and environment and indicate suitable exploration...transition Mean annual rainfall (mm) Climatic region TABLE 1.1-2 Climatic regions of pedogenetic significance...1989b), with some of the iron ores of the Hamersley region being products of deep supergene weathering about...dispersion models being developed in each climatic region. The differences between equivalent models are...approach would have particular value in a restricted region, for which landforms or facets are well defined |  | | Book | | our wealth. Just as the regolith of the Yilgarn region in Western Australia is presently producing much...Figure 2.3 Mesas and plateaux from the Hat Hill region of South Australia with a flat top protected from...small catchments. The regolith in the lower slope region tends to be thick relative to the upper slope because...explanation is not possible (e.g. the Victoria River region of the Northern Territory). One answer is etchplanation...cut during mid-Cretaceous high sea levels. The region does contain thin sequences of Cretaceous shallow |  | | Book (edition) | | socioenvironmental impact through the entire life cycle of the mine, it is important to aim at getting it “right the...gold mills in the world (despite being a copper mine). Concentration of gold by gravity has seen innovation...Mining, Metallurgical, and Petroleum Engineers acid mine-drainage Advanced Mineral Identification and Characterisation...return on investment rapid oxidative leach run-of mine rare phase search SAG mill/ball mill/crusher semi-autogenous...electrode selective catalytic reduction Sunrise Dam Gold Mine scanning electron microscopy List of Acronyms |
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