The NEBs are sodium-rich but potassium-poor, and differ from the vast majority of normal arc basalts in their higher Nb/ La ratios and minor negative to positive anomalies in Ba, Nb and Ti.

  • 富Nb玄武质岩富钠贫钾,具有微弱负-正Ba、Nb和Ti异常以及高的Nb/La比值,不同于大多数正常岛弧玄武岩。

  • 互联网摘选 2025-01-19 22:18:51

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