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系统研究了河北汉诺坝玄武岩中二辉麻粒岩和辉石岩捕虏体的Ｓｒ、Ｎｄ、Ｐｂ同位素特征。虽然未确定捕虏体的形成时代，但同位素特征显示它们可能为较近期（中生代以来）形成。低的Ｒｂ／Ｓｒ与高的８７Ｓｒ／８６Ｓｒ比值的解耦表明捕虏体的形成经历了较强的混合作用。在二元同位素相关图上，三类具不同矿物组成的辉石岩与二辉麻粒岩有密切关系，即二辉麻粒岩投点位置是三类辉石岩的共同端点。综合考虑捕虏体的空间分布及其在Ｓｒ、Ｎｄ、Ｐｂ同位素协变图上的关系，可以认为层离作用可较好地解释这些现象。
The Sr, Nd and Pb isotopic characteristics of the two-huff-nodule and pyroxenite xenoliths from the Hannuooba basalts in Hebei Province are systematically studied. Although the age of xenoliths was not established, isotopic characteristics suggest that they may have formed more recently (since the Mesozoic). The decoupling of the low Rb / Sr ratio from the high 87Sr / 86Sr ratio indicates that xenoliths undergo a strong mixing effect. On the binary isotope correlation diagram, three types of pyroxenes with different mineral compositions are closely related to two-hugh granulite, ie, the location of the diperflam pellet is the common endpoint of three types of pyroxene. Considering the spatial distribution of xenoliths and their relationship to the isotope covariant maps of Sr, Nd and Pb, it can be assumed that stratification can explain these phenomena well.