Santosh and Groves (2016) edited a Special Issue on Geoscience Frontier on giant, and to a lesser extent world-class, mineral deposits as the ultimate exploration targets, with discovery changing the financial bottom line of junior exploration companies and providing long-term resources and reserves for major mining companies. Despite this, there have been few volumes specifically devoted to giant mineral deposits, with most research papers dealing with their formation, and failing to identify critical genetic differences between the giant deposits and smaller deposits in the same deposit class. Some studies suggest there is a critical conjunction of a greater number of major controlling features for giant deposits when compared to smaller deposits. Certainly, GIS-based prospectivity or endowment studies of a number of orogenic gold provinces by researchers indicate that the giant deposits are the only deposits to satisfy all defined important components of the orogenic gold mineral system at the district or camp scale. However, such studies have not been conducted on other deposit groups to check whether this is a universal control on the uniqueness of giant ore systems.
In this special issue of Geoscience Frontiers, they assembled thirteen papers that address the geological, structural, geochronological, tectonic and genetic aspects of some of the giant to world-class mineral deposits across the world, with special emphasis on Asia where many giant ore systems are relatively poorly documented in the literature.