Metallogenesis Of The Polymetallic Mineralization System In Liushuping-Donggouba-Tongchang Area of Lueyang, Shaanxi

There are three different combinations of polymetallic deposits, Tongchang copper-iron deposit,Donggouba gold-silver-lead-zinc polymetallic deposit and Liushuping iron-gold-lead-zinc polymetallic deposit,occurring in different ore-bearing horizons（the Yangba rock formation and the Dengying Formation） with different lithology and however they have a certain metallogenic system specificity coupling with regional strata, lithology, tectonic and magma evolution. Their sedimentary environment, volcanic mechanism, tectonic lithofacies and ore metallogenic series in space distribution together constitute a set of metallogenic system in the area. Based on the analysis of the accumulation and evolution of three typical deposits and the data of tectonic and metallogenic（alteration） age data of magmatic events in the area, the metallogenesis of these deposits is discussed in this paper.