Maars of various scales produced by phreatomagmatic eruption are widely distributed in the Quaternary volcanic region of the Northern Hainan Island. 琼北第四纪火山区分布着为数众多、大小不一的射气岩浆喷发成因的低平火山口。
Dynamic mechanism of phreatomagmatic eruption in northern Hainan Island 琼北射气岩浆喷发力学机制探讨
Grain size analysis shows that the ejecta are composed mainly of fall deposit with an interbed of surge deposit, and the type of eruption is phreatomagmatic. 粒度分析表明,天池火山最近一次喷发物以空降堆积为主,夹一层薄层涌浪堆积,火山喷发类型为射气岩浆型。涌浪堆积碎屑物的分数维值为2.71。