Research advances in the “end effect” of ore forming

As a front subject in the study of geology of ore deposits and geomechanics of ore fields, the “end effect” of ore forming has attracted more and more attention from experts and scholars. The research contents of the “end effect” of ore forming mainly include the “end effect” of ore-forming structures and that of ore-forming fluids: as for the former, the “end effect” of multi-scale ore-controlling structures in different tectonic settings as well as their role in controlling ore fields and ore deposits (bodies), especially the structural types, mechanical properties, and rock- and ore-controlling mechanisms of the “end” of deposit-level ore-controlling structures, the trapping effect of ore-forming fluids, and the location mechanism of ore deposits (bodies), is studied based on the structural analysis of geomechanics of ore fields and in combination with structure-(alteration) lithofacies mapping technique and geophysical probing technique; as for the latter, the characteristics of ore-forming fluids can be reflected through study of fluid inclusions and isotopes and the temporal and spatial evolution process of the “end” of ore-forming fluids can be finely depicted through study of zoning effect of the “end” of ore-forming fluids, thus revealing the restriction of physicochemical conditions of structures on ore-forming process. From the perspective of the coupling relationship between the “ends” of ore-forming structures and ore-forming fluids, an in-depth study can be made in the rock- and ore-controlling mechanisms under the “end effect” of structures and the genetic relation of structure-fluid coupled ore forming through close combination of study of geology of ore deposits and fluid geochemistry, structural analysis of ore fields, and geophysical prospecting technique, thus providing a basis for the prediction for deep ore prospecting.