Discussion on the Copper and Nickel Metallogenic Potentiality of Mafic-Ultramafic Rocks in Central Inner Mongolia

The northern margin of North China Craton is an important metallogenic belts of Cu, Ni (Pt) sulfide deposits. Recently many Cu-Ni deposits (or ore occurrences) have been discovered in central Inner Mongolia spreading as a mafic-ultramafic belt. In order to explore the metallogenic potentiality in Erbutu, Wengeng, Kebu, Huanghuatan and Xiaonanshan in the belt, this paper summarized and analyzed the data of the typical Cu-Ni ore-bearing intrusions. It is suggested that ore-bearing intrusions in Erbutu, Wengeng and Kebu have good geological ore-forming conditions in aspects of the mineral, the petrology and the magmatic differentiation, indicating preferable metallogenic potentiality. Whereas ore-bearing intrusions in Huanghuatan and Xiaonanshan do not show much metallogenic potentiality.