The bimodal volcanic rocks consist of dacitic rhyolite and tholeiitic basalts characterized by low K and high Na concentration. The REE distribution patterns of tholeiitic basalts show the flat style; and their trace elements geo chemistry is similar to MORB.
双峰式火山岩系由低K富Na拉斑玄武岩及酸性英安岩、流纹岩组成。
参考来源 - 西秦岭月照·2,447,543篇论文数据,部分数据来源于NoteExpress
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