Abstract:

 Since many porphyry copper deposits have been discovered in South Gobi of Mongolia， recently a series of research and exploration work has been done in the ErenhotDongwuqi region. However， no breakthrough has been made in the exploration of copper deposits. Hence， it is of great significance for exploration to determine whether the ErenhotDongwuqi region and South Gobi belong to one polymetallic metallogenic belt or not. According to the comparative study of aeromagnetic characteristics， remote sensing images and some bouguer gravity anomaly in some areas， here we demonstrate that ErenhotDongwuqi region and South Gobi form different and independent tectonic units. The northwestern border of ErenhotDongwuqi region is the NEstrike ZongbayinToudaoqiaoElunchun fault. The South Gobi polymetallic metallogenic belt controlled by the Zongbayin fault extends in the direction of northeast， which  not belongs to the same metallogenic belt as ErenhotDongwuqi region. Therefore， ErenhotDongwuqi region should have unique metallogenic regularity and conditions.

Key words:  Polymetallic metallogenic belt, Fault Connection, South Gobi, ErenhotDongwuqi