龙狮高岭土矿床地质特征及成矿过程简析

Geological Charactreristics and Mineralization Brief in Longshi Kaolin Deposits

龙狮高岭土矿床属于花岗斑岩热液蚀变叠加风化残余型高岭土矿床。矿床矿体分砂质高岭土和硬质高岭土两种自然类型,属低铁高铝矿石。埋深越深,铝变低,钾钠变高,达到硬质高岭土后趋于稳定。成矿过程分两期,花岗斑岩的热液蚀变形成硬质高岭土矿,后生风化作用则形成砂质高岭土矿。

Longshi kaolin deposits belong to porphyry hydrothermal alteration superimposed and weathered residual kaolin deposits. The ore deposits consists in sub-sandy clay and hard kaolin two natural types,belonging to low-iron aluminous ores. As the depth of the ore grows,aluminum goes low,potassium and sodium goes high,stabilized until the hard kaolin reached. Mineralization occurred in two phases,the granitic porphyry hydrothermal alteration formed hard kaolin mine,epigenetic weathering formed silty clay mineral.