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《World Nuclear Geoscience》 2016-01
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Study on mineralization characteristics of uranium deposits in Barenzhalage,Inner Mongolia

ZHAO Yichen;PAN Hongsong;ZHANG Kai;College of Earth Sciences,Chengdu University of Technology;Research Insititute No.280,CNNC;  
Barenzhalage pluton is a small riebeckite granite stock which intrudes the shaft of anticline of the Jurassic volcanic rocks.Uranium deposit is located at the top of the stock.Through exploration and analysis of samples,detailed study was finished on the distribution of ore body in uranium deposit,mineral composition of ore,rock structure,chemical composition,occurrence state of uranium,rock alteration and so on.The study shew that uranium ore bodies are distributed in the top of the dome with strong alteration and weathering.The uranium is mainly in the form of isomorphism of the dark zircon and other minerals,and a small amount occurred as davidite and kasolite.Rock alteration zonation controls uranium mineralization closely.The strong alteration zone which is located on the upper part has the highest uranium grade and stable thickness mineralization.With the increase of depth,uranium mineralization grade decreased with the weakening alteration.The study results provided the basis for the comprehensive development and utilization of uranium resources in the next step.
【CateGory Index】: P619.14
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