Geological features and prospecting direction of Xinzhai phosphate ore in Kaiyang County,Guizhou Province
In this paper,the author summarizes the geological features and ore-controlling factors of Xinzhai phosphate mine to analyze the prospecting direction.The deposit is located in the Upper Yangtze Block,North Guizhou uplift area and Fenggang northsouth trough-type fold deformation area,belonging to the barrier initial platform sedimentary deposit.Com-pared to the deposit in the environment of gentle slope without barrier,the ore body thickness in this deposit is smaller and the grade of phosphate ore is lower.The Lower Sinian Doushantuo Formation is the main ore-bearing rock series in the ar-ea.Two layers of industrial phosphate rock bodies(Layer a and Layer b)are developed in the ore-bearing rock series.The ore industry type is carbonate type.The northwest,southeast,and northeast parts of Xinzhai mining area have favorable ore-forming space,and there is great prospecting potential in the area.
Xinzhai phosphate depositgeological featuresprospecting direction
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