New Progresses in Exploration of Molybdenum Deposits and Analysis of Mineralization Prospect in Inner Mongolia

A series of new progresses have been made in molybdenum deposit exploration in Inner Mongolia in recently years,such as the Dasuji molybdenum deposit,Wulandele molybdenum deposit,and Xiaohulishan molybdenum deposit that have been discovered and exploited successively.And the Chaiganhua molybdenum deposit,Jiliuhe molybdenum deposit,and Diyanqinamu molybdenum deposit are under exploring.These deposits have probably a good prospect of extremely large scales.This paper studies these new discovered deposits.Using regional metallogenic theory,we summarize molybdenum deposit formation rules in Inner Mongolia.We think that the source of all molybdenum deposits is related with magmatism in this region.The major deposit types include porphyry molybdenum deposits and volcanic-subvolcanic molybdenum deposits.The metallogenic periods of ore formation are the middle-late Caledonian,late Variscan,Indo-China and late Yanshan.Periods.Six molybdenum metallogenic systems are suggested,from which nine prospective molybdenum deposits are speculated.We think the molybdenum metallogenic conditions are excellent,and there is a bright exploration prospect of porphyry (copper) molybdenum deposits and volcanic-subvolcanic (copper) molybdenum deposits in Inner Mongolia.