中文摘要:本文根据华南含钨锡花岗岩的稀土元素分布特征，将花岗岩分为四类，即稀土正常型，轻稀土富集型，重稀土富集型和稀土亏损型，并从稀土元素地球化学角度讨论了四类岩石的成因问题。
中文关键词:含钨锡花岗岩 稀土元素地球化学特征 岩石成因 华南
Abstract:In terms of REE geochemical characteristics the tin/tungsten-bearing granites of transformation series or S-type in South China call be subdivided into four distribution patterns；(1) REE-normal type, character ized by ∑REE = 250—50 ppm, ∑Ce/∑Y≥1 andδEu<0.4, and examplifted by Hukeng, 1)enbuxian, Huashan, Dajishan and Huangsha granites;(2) Light REE-enriched type, characterized by∑REE>250ppm,∑Ce/∑Y>6, and examplified by Malage granite;(3) Heavy REE-enriched type, charactelized by ∑REE>250 ppm and ∑Ce/∑Y<0.15, and examplified by Xihuashan, Yinyan and Xishan granites; (4) REE-depleted type, characterized by EREE<50 ppm and examplified by Yashan and Limu granites. These geneses can be intezpreted as caused by different histories jn the formation and evolution of granitic magma. These leatures result from the differences in nature ol source rocks and their initial REE background, degree of partial melting, completeness of deep-seated differentiation in the magmatic chamber and in situ differentiation at higher levels after their emplacement, remelting of underlying crystalline basement and younger granitic rocks which had not been completely consolidated and effects of F, CO2 and other volatile components. A combination of these factots might account for the geneses of Sn/W-bearing granites.
文章编号：
中图分类号：
文献标志码：
引用文本：
朱金初，徐士进.1989.华南含锡钨花岗岩的稀土元素地球化学特征和岩石成因[J].矿床地质,8(3):21~31.1989.REE patterns of tin/tungsten-bearing granites in South China and their petrogenetic implications[J].Mineral Deposits8(3):21~31
图/表
