塞尔维亚贾达尔盆地超大型锂硼矿床

Super Large Lithium and Boron Deposit in Jadar Basin,Serbia

锂和硼有着广泛的用途,我国常年大量进口锂和硼矿石。近些年在塞尔维亚贾达尔盆地中发现一个特殊的超大型锂硼矿床,与Rio Tinto、Pan Global Resources和Ultra Lithium等公司一样,我国地勘单位正在这一矿区进行勘查工作,因此对该地区的锂硼矿床地质特征进行总结和报道很有必要。该矿床的矿石矿物是世界独有的既含锂也含硼的羟硼硅钠锂石(Jadarite)[LiNaSiB_3O_7(OH)],其含B_2O_3 47.2%,含Li_2O 7.3%,密度2.46g/cm^3。已有资料显示,找矿标志层为中新统湖相沉积岩中的凝灰岩层,矿体具有电阻率小于4.4Ω·m和重力异常值小于-15mGal的特征。该矿床设施齐全,且选矿和化工处理简便,短期内可获得硼和锂产品。

Lithium and boron are widely used,and our country import ore perennially.Recently,a special world-class lithium and boron deposit was found in Serbia Jadar basin.Like Rio Tinto,Pan Global Resources and Ultra Lithium,Chinese geological prospecting institute will doing exploration work in it,so it＇s necessary to report the geological characteristics of the deposit.The ore minerals is unique in the world,which contains both lithium and boron,called jadarte [LiNaSiB3O7 （HO）].It contains B2O3 47.2% and Li2O7.3%,weight 2.46g/cm3. According to the data,The wall rock is Miocene lacustrine sedimentary rock.Lithium and boron are most likely the volcanic origin,showing as that jadarite zone appears near the tuff horizon.The characteristics of ore body is that the resistivity is less than 4.4 Ωom and the gravity negative anomaly, generally less than -15 mGal. Infrastructures are sufficient;Mine method is well mining;Ore beneficiation is convenient and raw materials are available,so lithium and boron can be produced in short period.