Geological characteristics and prospecting indicator of Daliang uranium deposit in Motianling area,Guangxi
Daliang uranium deposit is located within the 0.5-1 km range of the inner and outer contact zone between the southwest edge of Motianling rock mass and the sedimentary metamorphic rock series of Sibao Group.It is one of the earliest mineralization age uranium deposits in South China.In order to further re-store the uranium mineralization process in Daliang area and to determine the exploration and prospecting in-dicator,this article has discussed various aspects such as geological characteristics of the deposit,orebody characteristics,ore-controlling factor,and geochemical characteristics of trace elements and rare earth ele-ments.The research result indicates that the uranium leaching rate of the surrounding rock in Daliang urani-um deposit is high,and the orebody is significantly controlled by the fault structures.Trace elements such as Sb,Y,W,Pb,Sr,Nb,Ba are closely related to the activation,migration and enrichment of U element.The variation pattern of trace elements in the ore is similar to that of the surrounding rock.The Y/Ho value of uranium ore is 37.33-45.60,which is higher than the Y/Ho value of surrounding rock,which is 24.83-29.68.There is a significant difference in the REE distribution pattern between them.Based on the comprehen-sive analysis,it is considered that the ore-forming materials in Daliang area are not entirely derived from the surrounding rocks,and the deep source materials are also involved.
Motianling granite massDaliang deposituranium mineralization featureprospecting mark
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