Estimating a Gold ResourceNo gold resource figure reflects the actual amount of gold in the ground. The number quoted will be a guess, an estimate made by using all data and observations available.
Even for a deposit that has been drilled out at a close drill spacing, the amount of data will be very small relative to the volume of the ore body. This means that for all the area between drillhole data, the grade of gold must be estimated. The most common method used is a formula called kriging. This takes all data within a certain spatial range around a particular point, and weights those |