Rediscuss the metallogenic hysteresis——the important characteristics of the global metallogenic evolution
By the statistical analysis of the data on the geological age and deposit types of over 1000 large-superlarge metallic deposits worldwide,including Fe,Mn,Cr,Cu,Ni,Co,Al,Pb,Zn,W,Mo,Sn,Sb,Au,Ag,PGE,Li,the metallogenic evolution characteristics of major metals in the globe and four major metallogenic domains are elaborated. Many large-superlarge metallic deposits worldwide form in the late stage of tectonic-magmatic cycles or tectonic-magmatic-sedimentary cycles in their geological structural units/metollogenic units. Many metals have undergone re-enrichment during the geological activities of the Cenozoic era,which is the peak period for the formation of most large-superlarge metallic deposits worldwide. This process and mechanism are called metallogenic hysteresis. Metallogenic hysteresis commonly exists in the global historical metallogenic evolu-tion. Metallogenic hysteresis of different metals is closely related to their elemental geochemical properties and is constrained by tectonic evolution.
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