Paper 133
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چکیده
Surface geological and geochemical mapping have been key technical contributors to many gold discoveries over the past 25 years. However, in the last ten years there has been a growing emphasis on using geophysical techniques to compliment them in covered terrains. As the search for gold deposits under covered areas expands, there will be increasing emphasis on integrating the geoscientific disciplines in such a manner as to optimise the exploration process to decrease the time and cost of discovery. Successful integrated exploration requires putting mappable petrophysical property contrasts into a geological and geochemical process for the different tectonic environments of major gold ore types. The geological and geochemical context of epithermal (high and low sulphidation), intrusion related and mesothermal gold deposits is described prior to the discussion of relevant petrophysical property contrasts and geophysical observations. Emphasis is placed on deposits in the circum Pacific region and Western Australia.
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