Hang on a minute, the figure from BBX that you posted has the soil "anomaly" defined by the 2-5 part per billion Au and the 10 parts per billion Au contours, but you are claiming a uniform orebody of 40g/T Au (40ppm Au) in fresh rock.
Surely a fresh rock source/orebody of those dimensions with grades of 40g/T Au would have a massive size and tenor soil anomaly expression that would be more convincing than 2-5ppb Au? My grandma's rose garden probably has about 2-5ppb Au in it, so that's hardly a soil anomaly.
Weren't you the one dismissing questions about gold dispersion and/or enrichment in a tropical regolith/soil horizons by saying that the ore was hosted in completely fresh dolerite at surface?