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The most important component of the SAEI has been the coverage of the State with high resolution airborne geophysical surveys.
The SAEI airborne geophysical program has been the most intensive publicly funded survey undertaken in Australia, with some 400,000km2 of the State covered in less than three years.
Over 1 million line kilometres ($10 million) of new data have been made available to industry at a cost of around one cent per kilometre of data. Primary Industries and Resources South Australia (PIRSA) has encouraged industry to jointly participate in surveying prospective areas. Direct company participation has amounted to $1 million, enabling extension of the SAEI surveys.
Most major metaliferous provinces have been covered, including the Gawler Craton, Wilyama Inliers, Adelaide Geosyncline, Kanmantoo Trough and eastern Musgrave Block.