河南省方城县双山碱性正长岩型铌矿综合找矿方法及找矿模型

An integrated ore-prospecting method and model in search for Shuangshan alkali syenite Nb deposit in Fangcheng County,Henan Province

通过双山铌矿的发现,提出了适合于碱性正长岩型"稀有稀土"矿的综合找矿方法,即以水系沉积物测量发现靶区、以岩石测量圈出矿化带、以特征矿物填图厘定含矿地质体、以槽探工程控制地表矿体、以钻探工程验证深部矿体的方法。实践证明,该找矿方法组合具有经济、快捷、找矿效果显著等特点。通过对各种找矿方法的分析研究,建立了找矿模型,对国内碱性正长岩型铌-稀土多金属找矿具有重要意义。

In this paper,an integrated ore-porspecting method is put forward in search for alkali syenite type u rare metal and REEn ore deposits.The method includes finding prospecting target through stream sediment survey,delineating the mineralized zone by rock survey,the performnance of geological mapping of characteristic minerals to find the ore-bearing geological bodies,the control of the surface orebody by trench and the verification of the deep orebody by drilling.The combination of these techniques for ore-prospecting is economical,rapid and efficient in practice.Based on analysis and study of various prospecting techniques,the authors have built a prospecting m odel,which has guiding significance in search for alkali syenite type Nb-REE polymetallic deposits in China.