 | | Journal (article/letter/editorial) | | of native gold and electrum and the geochemical environment of gold vein deposits in Japan N. Shikazono...Faculty of Science, University of Tokyo, Tokyo 113, Japan 2 Department of Petrology and Mineral Deposits,...University of Tokyo, Tokyo 113, Japan Abstract. The chemical composition of native gold and electrum from auriferous...auriferous vein and gold-silver vein deposits in Japan has been analyzed and summarized. The Ag/Au ratios...ratios of native gold and electrum from these two types of deposits are distinct, i.e., 10-20 Ag at % (auriferous |  | Ciobanu, Cristiana L., Cook, Nigel J., Pring, Allan, Brugger, Joël, Danyushevsky, Leonid V., Shimizu, Masaaki (2009) ‘Invisible gold’ in bismuth chalcogenides. Geochimica et Cosmochimica Acta, 73 (7) 1970-1999 doi:10.1016/j.gca.2009.01.006 | Journal (article/letter/editorial) | | 1970–1999 www.elsevier.com/locate/gca ‘Invisible gold’ in bismuth chalcogenides Cristiana L. Ciobanu a...Department of Earth Sciences, University of Toyama, Japan Received 8 May 2008; accepted in revised form 8...2009; available online 23 January 2009 Abstract Gold concentrations have been determined by LA-ICPMS...epithermal, skarn, intrusion-related and orogenic gold. The samples comprised minerals of the tetradymite...bismuthinite, and aikinite), and accompanying altaite. Gold concentrations in phases of the tetradymite group |  | | Journal (article/letter/editorial) | | welldefinedpyritic unit which extendsoutsidethe limits of the mine area and is an integral part of the regional stratigraphy...picture: (1) the regional deformation historyof the mine hoststratigraphyand hostrocks, consideredindependentlyof...morethan 15 percent. Pyrite content oped in the mine area, forming within schistose varies betweenless...sphalerite-pyritebanding is parallel to 52/52, but in many mine areas it is extremely difficultto establishthat...assumptionis often of multiple orebodies of the Horne Mine and upper extension of the sheeted No. 5 pyritic |  | | Report (issue) | | ----- ____ ------ ____ _ Nonthermal saline and acid mine waters ______ _ Other nonthermal acid mineral waters...well 200 feet deep, a short distance east of the city of Hot Springs, Ark. (analysis 2), is slightly thermal...Silurian crystalline schist; and that from Arima, Japan (analysis 14), is from Tertiary rhyolite near granite...New an earlier analysis. from the nearby Quincy mine, reZealand (table 23, nos. 1 and 6) are closely...identified in the Sturgeon River gold from an epithermal silver-gold deposit; one analysis mines of Canada |  | | Book | | been carried out. Epithermal vein-type deposits in Japan have also been well-studied. More than 1,000 papers...on Kuroko and epithermal vein-type deposits in Japan will be summarized in Chapter 1. The descriptions...study epithermal vein-type and Kuroko deposits in Japan. I learned from them an importance of the integration...fluid inclusion studies of vein-type deposits in Japan were especially valid and useful to writing this...On the origin of Kuroko of the Kosaka mine. J. Geol. Soc. Japan, 26, 107-132 (in Japanese). Ohmoto, H |  | | Report (volume) | | does accumulate in some gold-bearing veins, especiaJly those containing gold tellurides, and in some...Chern. Soc. Japan BulL-Chemical Society of Japan Bulletin. Tokyo, Japan. Chern. Soc. Japan Jour. See Nippon...Zasshi-Chigaku Zasshi (Journal of Geography). Tokyo, Japan. Chimie & Industrie-Chimie & Industrie. Paris, France...Electrochemical Society of Japan. Nitso Seiko Kabushiki Kaisha). Sendai, Japan. Deutsche Geol. Gesell. Zeitschr...BulL-Ghana Geological Survey Bulletin. Accra, Ghana. Gold Coast Geol. Survey Bull. See Ghana Geol. Survey |
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