低平火山口
- 网络Maar;aar;marr
低平火山口-
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。
Maars of various scales produced by phreatomagmatic eruption are widely distributed in the Quaternary volcanic region of the Northern Hainan Island .
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工作区内琼北新生代火山共计59个，火山结构类型可分为火山锥、熔岩穹、熔岩湖与低平火山口等。
There are 59 Cenozoic cones , the volcanic texture of which may be classified into cone , dome , lava lake and maar .