湘东南汝城盆地火山岩系由辉绿岩、玄武岩和玄武质火山碎屑岩组成，属于低钾拉斑玄武岩系。
The volcanic rock series in the Rucheng basin in southeastern Hunan is composed of the basalt, diabase and basaltic pyroclastic rock.
湘东南玄武质岩石包括碱性玄武岩和拉斑玄武岩两个系列 ，以碱性玄武岩系列为主。
The basaltic rocks in Southeastern Hunan Province include alkali basaltic series and tholiitic basaltic series, the alkali basaltic series is in great number.
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