Esa Nummi, in following up on a recent paper in Geology (GSA), reports on the equipment suitable for use in follow-up exploration for gold and other metals around the world is discussed in some detail. To enhance their chances of finding gold, geologists may use geophysical methods to measure variations in the physical properties of rocks (e.g. density, magnetism, electrical conductivity, natural radioactivity, etc) that may indicate the presence of suitable environment for gold mineralization. Although these geophysical methods can be crucial for gold exploration, geochemical methods, including portable x-ray florescence (XRF), are the only methods that can measure concentration of gold and other associated elements. Today, portable XRF is used in various stages of gold exploration and mining including grass-root exploration (particularly using pathfinder elements), finding source of gold in stream sediments, core logging, identification of lithologies, and even grade control. . Identification of Lithology and Base Metal Anomalies, Pathfinders for Gold Exploration Using ThermoScientific Portable XRF Analyzers to learn about the successful use of portable XRF analyzers in gold exploration.
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