X-ray Fluorescence Spectrometry (XRF)and Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) were used to obtain the geochemical data of podumene pegmatite,albite pegmatite and potash feldspar pegmatite in the Chuan-ziyuan area.Podumene pegmatite contains high Al2 O3 (16.23% -16.4%)and K2 O (3.05% -5.22%)with high differentiation index (91 .13 -94.9 ).Podumene pegmatite is enriched in Rb and K but depleted in Ba,Sr and Ti with ΣREEs of 2.9 ×10 -6 -3.5 ×10 -6 .Albite pegmatite is characterized by high Na2 O (5.58% -7.41 %)and low K2 O (0.98% -2.62%).Compared to podumene pegmatite,the Rb /Sr ratios of albite pegmatite decreased and REEs increased.Potash feldspar pegmatite contains high K2 O (9.13%)and low Na2 O (1 .69%),the Zr/Hf and K/Rb ratios increased compared to podumene pegmatite and albite pegmatite.The geochemical characteristics of these rocks indicate that liquid immiscibility,albitization metasomatism and potash feldspathization metasomatism resulted in Li and Rb mineralization in podumene pegmatite,Nb,Ta and Be mineralization in albite pegmatite and potash feldspar pegmatite,respectively.These observations are geochemical indicators for exploration of the rare metal deposits.%本文利用 X 射线荧光光谱和电感耦合等离子体质谱分析技术对传梓源地区锂辉石伟晶岩、钠长石伟晶岩和钾长石伟晶岩开展研究，获得三种类型伟晶岩地球化学特征。锂辉石伟晶岩具高 Al2 O3（16．23％～16．4％）、高 K2 O（3．05％～5．22％）和高分异指数（DI ＝91．13～94．9），微量元素富集 Rb、K 而亏损 Ba、Sr、Ti，稀土元素含量低（ΣREEs ＝2．9×10－6～3．5×10－6）；钠长石伟晶岩富 Na2 O （5．58％～7．41％）而贫 K2 O （0．98％～2．62％），微量元素 Rb ／Sr 值相对于锂辉石伟晶岩呈降低变化而稀土元素为升高变化；钾长石伟晶岩富 K2 O （9．13％）而贫 Na2 O （1．69％），微量元素 Zr／Hf 和 K／Rb 值相对于锂辉石伟晶岩和钠长石伟晶岩呈升高变化的特征。表明岩浆在演化过程中发生了不混溶作用、钠长石交代作用和钾长石交代作用，分别形成了 Li、Rb 矿化锂辉石伟晶岩，Nb、Ta、Be 矿化钠长石伟晶岩和无矿化钾长石伟晶岩，这些地球化学特征是稀有金属矿床找矿地球化学标志。
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