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All samples have UTM grid co-ordinates (UTM Zone 36K, Modified Clarke Spheriod 1880 (S.A.)). These co-ordinates have been modified since the original report to be full Easting and Northing grid references - this required an "8" to be prefixed to the original Northings.
Each data record includes a LithUnit and RockType. These are explained in each of the reports referenced previously.