SEG Special Publication Number 15
This extensive volume includes 35 papers that describe the approaches that have led to discovery and the first detailed geological descriptions of some of the most significant new discoveries of the past decade. Contributions include those focused on the Colosa gold porphyry (Colombia), Money Knob intrusion-related gold system (Alaska, USA), Pequop Carlin gold district (Nevada, USA), new ores of the Fresnillo silver district (Mexico), epithermal silver deposits at Corani (Peru) and Navidad (Argentina), porphyry copper systems in the Centinela and Los Bronces-Rio Blanco districts (Chile), zinc-rich skarns in the Toqui district (Chile), SEDEX deposits of the McArthur basin (Australia), magmatic nickel ores at Ntaka Hill (Tanzania), Eagle's Nest (Ontario, Canada), and in the Thompson belt (Manitoba, Canada), roll front uranium in Wyoming (USA), unconformity-type uranium in Saskatchewan and Northwest Territories (Canada), and magmatic uranium ores at Rossing South (Namibia). Discussed state-of-the-art geophysical and geochemical techniques include the use of infrared spectroscopy to explore for gold in Ghana, a summary of various geochemical exploration approaches that have led to discovery of porphyry copper ores in the Andes, application of redox-induced electro-migration methodology to detect base metal-rich ores in northeastern Australia, and evaluation of the most recent geophysical tools required in Cu-Nu-PGE exploration. Broad overviews appraise the likely sources of future global gold resources, the current ore deposit models most appropriate for silver and uranium resources, the resource potential of the world's seafloors for future development, the world-wide Tethyan base metal event, a new perspective on Ni-Cu-PGE exploration, and a present-day understanding of the evolution of nickel ores in laterites. As a whole, this SEG Special Publication represents the most comprehensive summary available on recent exploration successes and the direction of our science and industry in the near future.
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