地球科学

• bimodal volcanic rocks

  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。

• bimodal volcanics

• bimodal volcanic rock