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河北汉诺坝玄武岩中长英质麻粒岩、镁铁质麻粒岩和辉石岩捕虏体的主量元素和微量元素特征，反映了下地壳及壳幔过渡带组成具有高度化学不均一性。不相容元素原始地幔标准化曲线特征的差异表明捕虏体成因复杂。MgO与不相容元素无或仅有很弱的相关性，与相容元素的相关性则相对较明显。这些特征反映了下地壳及壳幔过渡带存在较强和多元的混合作用。捕虏体的加权平均值比基于麻粒岩地体资料估算的下地壳平均组成偏基性，揭示了二者可能的成因差异。
The major and trace element characteristics of the mid-British granulite, mafic granulite and pyroxenite xenoliths from the Hannuooba basalts in Hebei Province reflect the high chemical heterogeneity in the composition of the transitional zone between the lower crust and the crust and mantle Sex. Differences in features of the normal mantle normalization curves of the incompatible elements suggest that the origin of the xenoliths is complex. There is no or only very weak correlation between MgO and incompatible elements, while the correlation with compatible elements is relatively obvious. These characteristics reflect the strong and diverse mixing of the lower crust and the crust-mantle transitional zone. The weighted average of the xenoliths is more biased than the average composition of the lower crust based on the granulite data, revealing the possible causal differences between the two.