浙江火山岩流分布至广尤其在浙江东部沿海地带几乎全部为火山岩所占据,就过去前辈调查及研究结果此项炎山岩之喷发始自白垩纪之建德系,终於第四纪之玄武岩系。刘季辰,赵亚曾二氏之建德系范围广阔,顶部多系火山岩喷发物,盛莘夫氏加以修改,将建德系上部之流纹岩另辟一流纹岩系,并於此项流纹岩之上,玄武岩系之下 The distribution of volcanic rocks in Zhejiang Province is widespread, especially in the eastern Zhejiang coast. Almost all of them are occupied by volcanic rocks. Based on the results of previous surveys and studies, the Yan Shan rock erupted from the Cretaceous Jiande system and finally Quaternary basalts . Liu Jichen and Zhaoya Zeng’s range of Jiande is vast and the volcanic eruption at the top is multifacies volcanic eruptions. Sheng Shifu modified to connect the rhyolite of the upper part of Jiande with the rhyolite series. On the basalt line