 | | Journal (article/letter/editorial) | | Pyrrhotite-Rich Massive Sulfide Deposits, Escanaba Trough, Southern Gorda Ridge TUOMO O. TĆRMĆNEN* Institute of...sediment-covered floor of the Escanaba trough, the slow-spreading, southernmost segment of Gorda Ridge. These concentrations...chimneys. The low solubility of Au as a bisulfide complex and the absence of fluid mixing during this stage...that gold was effectively scavenged from the Escanaba trough vent fluids by coexisting droplets of liquid...of hydrothermal fluids with sediment in the Escanaba trough. In contrast, the absence of the Au-Bi association |  | | Journal (article/letter/editorial) | | namely joseite-A (Bi4TeS2), joseite-B (Bi4Te2S), hedleyite (Bi7Te3), ikunolite (Bi4S3), āprotojoseiteā (Bi3TeS)...Archaean, Viceroy and Mazowe Mines, Zimbabwe, Passagem de Mariana Mine, Brazil. Introduction FOR a long time...bismuth-tellurides-sulphide association. The work reports on the complex ore mineralogy, mineral chemistry, and the siting...Passagem de Mariana Mine in Brazil. Regional and mine geology Viceroy Mine is situated ~30 km east of Harare...which trends N S and dips vertically or steeply east, and the Diagonal Reef which has a NNE trend and |  | Ciobanu, Cristiana L., Birch, William D., Cook, Nigel J., Pring, Allan, Grundler, Pascal V. (2010) Petrogenetic significance of AuāBiāTeāS associations: The example of Maldon, Central Victorian gold province, Australia. Lithos, 116 (1) 1-17 doi:10.1016/j.lithos.2009.12.004 | Journal (article/letter/editorial) | | AuāBiāTe and hint at crystallisation from melts. The complex associations include symplectites of gold and bismuth...mineralsāare recognised: (1) bismuth+ maldonite Ā± hedleyite; (2) Bi-sulphotellurides + jonassonite, and decomposition...assemblages and textures are the product of a complex sequence of overprinting, there is no need to invoke...volcanic massive sulphide systems (Escanaba Trough, S Gorda Ridge; TƶrmƤnen and Koski, 2005), skarn deposits...deposits such as Fe skarns (Ocna de Fier and Baisoara, Romania; Ciobanu et al., 2003; Ciobanu and Cook |  | Meng, Lin, Huang, Fei, Gao, Wenyuan, Gao, Rongzhen, Zhao, Fude, Zhou, Yiran, Li, Yongli (2022) Multi-Step Gold Refinement and Collection Using Bi-Minerals in the Laozuoshan Gold Deposit, NE China. Minerals, 12 (9) 1137 doi:10.3390/min12091137 | Journal (article/letter/editorial) | | Block, northeastern China, and has experienced complex mineralization processes with abundant gold and...to the formation of high-grade ore bodies with complex minerals [17,19]. In this context, elements such...sulfidation stages as well as the development of complex textures and intricate mineral patterns in the...mineralization was found to have occurred in the East and Central ore belts of the Laozuoshan gold deposit...the West ore belt, with minor occurrences in the East and Central ore belts [23,25]. C-O-S-Pb isotope |  | | Book | | proceedings of the Gold '86 meeting in Toronto, the Pacific Rim Congress '87 in Gold Coast, Australia, and...Browne, A.H.C. Carter, H. Colley, D.S. Cronan, M.J. de Wit, P.I. Eimon, W.R. Fitches, A.O. Fuller, A.P....epithermal deposits in the Western Great Basin and Pacific Northwestern United States. Administratively, he...and exploration in Europe, Africa, and the Middle East. Professor D.1. Groves Key Centre for Teaching...exploration for hydrothermal vents in the Indian Ocean and studies of the geology and mineralogy of sulphide |  | Wang, Changhong, Huang, Yongjian, Ma, Yu, Zhang, Zhifeng (2019) Geochemistry, mineralogy and mineral chemistry of the Welatam Cu-Mo-Bi-Au prospect, Northeast Myanmar. Ore Geology Reviews, 111. 102973 doi:10.1016/j.oregeorev.2019.102973 | Journal (article/letter/editorial) | | metallogenic district into two segments, namely, the Southern Tengliang and Northern Tengliang. Researches conducted...conducted in this district are all confined to the Southern Tengliang in southwest Yunnan, China; however...Baoshan-Sibumasu, and Tengchong-Western Burma blocks. From east to west, the boundaries of these terranes are Ailaoshan...bounded by the Nujiang suture (Gaoligong fault) to the east and the Indo-Burma suture to the west (Fig. 1a)...strike at 355ā005Ā° and dip at 77ā90Ā° towards the east (Fig. 1d). The structure in this area is dominated |  | Ciobanu, Cristiana L., Cook, Nigel J., Pring, Allan, Brugger, JoĆ«l, Danyushevsky, Leonid V., Shimizu, Masaaki (2009) āInvisible goldā in bismuth chalcogenides. Geochimica et Cosmochimica Acta, 73 (7) 1970-1999 doi:10.1016/j.gca.2009.01.006 | Journal (article/letter/editorial) | | volcanogenic massive sulļ¬de (VMS) systems, Escanaba Trough, Southern Gorda Ridge (ToĢrmaĢnen and Koski, 2005), as...Au content in these minerals, which all display complex crystal-structural modularity. The genetic connotations...Bichalcogenides. Structural modularity (e.g., Lima de Faria et al., 1990; Makovicky, 1997, 2006) is a formalism...that: (i) allows classiļ¬cation of minerals with complex chemistry into series/ groups of related compounds...tetradymite group (c) and aleksite series (d). Note van de Waals gaps and metallic bonds at XāX and BiāBi contacts |  | | Book | | Geological Survey of Western Australia 100 Plain St. East Perth WA 6004 Australia franco.pirajno@doir.wa.gov...springer.com To my wife Foreword The Earth is a complex and dynamic system that over 4.5 billion years...work in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific, China, Greenland...(GSWA) typed most of the tables, especially the complex ones. Jean Johnston and Chris Hocking performed.... . . . . . . . . . . . . . 1.4.8 The Role of Complex Ions and Ligands in Hydrothermal Fluids . . . |
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