[an error occurred while processing this directive]
俯冲带岩浆弧安山岩的成因研究进展
张晓智(), 周怀阳(), 钱生平
Reviews on Genesis of Magmatic Arc Andesite in Subduction Zone
Xiaozhi ZHANG(), Huaiyang ZHOU(), Shengping QIAN

图6. 岩浆弧安山岩微量元素关系图解
(a, b) Y-Sr/Y图解，(c, d)球粒陨石标准化的(Yb)N-(La/Yb)N图解(标准化值来自参考文献[40])；图中虚线圈定的区域为Defant等[100]界定的埃达克岩成分范围；岩浆弧安山岩数据来自GEOROC数据库(http://georoc.mpch-mainz.gwdg.de/georoc/)；在MATLAB内以3为区间长度，计算了每个区间内数据的平均值与标准误差

Fig.6. Diagrams of trace element relationships for the magmatic arc andesites
(a, b) Plots of Y versus Sr/Y, (c,d) Plots of chondrite-normalized (Yb)N versus (La/Yb)N (normalization values from reference [40]). The area delineated by the dotted line is the composition field of adakite according to Defant et al.[100]， Data of magmatic arc andesites from the GEOROC (http://georoc.mpch-mainz.gwdg.de/georoc/). Taking 3 as interval length in MATLAB, the average value and standard error of data in each interval are calculated