湖北宜昌马滑沟金矿床构造叠加晕找矿模式及预测

Ore Prospecting Model and Prediction of Structural Superimposed Halo in Mahuagou Gold Deposit of Yichang City,Hubei Province

马滑沟金矿床位于湖北省宜昌市夷陵区邓村乡邓村坪村,产于北北西向脆—韧性剪切带中,目前矿山濒临危机,为此运用地球化学构造叠加晕找盲方法对矿山深部进行研究。通过对样品原生晕数据进行数理分析,总结出马滑沟金矿床特征元素组合,对特征元素组合进行分带指数计算和地球化学参数分析,建立马滑沟金矿构造叠加晕理想模型和盲矿体预测的数学模型,并结合元素异常浓集分带的中心及规模、深部工程勘探情况圈定三个找矿靶位,为下一步勘查工作提供科学依据并指明方向。

Mahuagou gold deposit is located in Dengcunping village,Dengcun township of Yiling District.It occurs in the NNE trending brittle-ductile shear zone.At present,the mine is on the verge of crisis,therefore,the geochemical structural superimposed halos blind method is used to study the deep part of the mine.Through mathematical analysis of sample primary halo data,the paper summarizes combination of characteristic elements of Mahuagou gold deposit,analyzes calculation of zoning index and geochemical parameters,establishes the ideal model of structural superimposed halo and the mathematical model of blind orebody prediction.Combining the elements anomaly zoning center and scale,deep engineering exploration and delineation of the three ore prospecting target,the paper delineates three prospecting targets,which provides scientific basis and direction for the next exploration work.