According to the major and trace element and isotope data of the Cenozoic volcanic rocks in the Zhujiangkou Basin of the South China Sea (SCS), it has been discovered that the Eogene volcanic rocks are complex in components.

• 研究表明，南海（SCS）珠江口盆地新生代火山岩特征如下：早第三纪火山岩成分较复杂，既有玄武岩，也有较多的中酸性火山岩，岩石系列以钙碱性为主。