Mineralization Characteristics and Prospecting Prospects of Sandstone Type Uranium in Wuerhe area,Northwest Margin of the Junggar Basin
The Junggar Basin is one of the most important uranium bearing basins for sandstone type uranium deposits in northern China.Wuerhe area is located in the northwestern margin of the Junggar Basin,with rich uranium ore pros-pecting information,but the exploration degree is relatively low.In the 1990s,the Wuerhe ore occurrences were discov-ered in this area.After investigating the logging data of oil and gas wells in the oilfield,it was found that multiple oil and gas wells exhibited abnormally high natural gamma logging characteristics in the sandstone layer of the Lower Creta-ceous Qingshuihe Formation(K1q),with the natural gamma value of well W105 reaching 1472.72API.Through quantita-tive analysis γ measure and uranium ore verification drilling,it is clear that Qingshuihe formation in the Wuerhe area has great prospecting potential.Combined with comprehensive analysis of uranium source conditions,structural morphology,sedimentary characteristics,etc.,the ore body may be distributed along the NE direction of Well W105,so this area can be regarded as the key field of uranium exploration and breakthrough in the the northwest margin of the Junggar Basin.
Northwestern margin of Junggar basinWuerhe areaLower Cretaceous Qingshuihe formationSandstone-type uranium depositProspecting direction
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