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It is important to use the DETECTION_LIMIT field in conjunction with the VALUE field to identify results that are below the detection limit.Till geochemical samples were systematically collected throughout New Brunswick. Samples collected before the year 2000 were located using compass and pacing. Samples collected from 2000 to present were located using handheld GPS or GPS-enable tablets. A soil (till) sample was collected at each site. Samples were processed (dried and sieved) at New Brunswick Geological Survey facilities in Fredericton and then sent to commercial analytical labs for geochemical analysis. 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