云南牟定县水桥寺稀土矿床特征及找矿方向

THE FEATURE AND PROSPECTING DIRECTION OF SHUIQIAOSI REE DEPOSIT IN MOUDING,YUNNAN

牟定水桥寺稀土矿体主要赋存于元古界苴林群普登组第一岩性段风化壳中全风化层中上部,其形态、产状与风化壳形态产状一致。稀土主要呈离子状态吸附于粘土矿物中,为离子吸附型稀土矿,从稀土矿石配分属中钇轻稀土矿类型。通过对该类型矿床的总结,为变质岩风化壳离子吸附型稀土矿找矿方向提出建议。

The orebody of Shuiqiaosi REE orebody in Mouding is mainly in the whole weathered layer middle-upper part of weathering crust of Proterozoic Julin Group Pudeng Formation Lithilogic Member 1.The shape and occurrence are consistent with those of weathering crust.REE is mainly in ionic state adsorbent in clay mineral,which is the ionic adsorption deposit,belonging to median Y LREE deposit according to REE ore distribution.According to the summing up of this deposit,we put forward the suggestion on the prospecting direction of metamorphic rock weathering crust ionic adsorption REE deposit.