摘要
稀土元素在姑婆山花岗岩主岩体过渡相中,主要以稀土矿物和类质同象两种形式存在,并以稀土矿物形式为主,其中稀土元素含量占全岩含量的64％以上。轻稀土元素主要赋存于褐帘石和独居石中,重稀土元素主要赋存于褐钇铌矿等矿物中。岩石中至少有65％以上的稀土元素赋存于抗风化能力小的矿物中,为花岗岩风化壳离子吸附型稀土矿床提供了物质来源。
REE in the transitional phase of Guposhan main granite magma mass are mainly in the form of the rare-earth mineral pattern of the isomorphous pattern. The REE content of the rare-earth mineral pattern are 64 percent more of the total REE content of the granite. LREE are mainly in orthite and monazite,HREE are mainly in fergusonite etc. At least about 65 percent REE are concentrated in the mineral which are less resistance to weather. Thus, it provided the source material of the rare-earth mineral deposit on the ion adsorption pattern of the granite weathering crust.
出处
《矿物岩石》
CAS
CSCD
1992年第1期38-45,共8页
Mineralogy and Petrology
