微量元素比值蛛网图和稀土元素配分型式具有岛弧钙碱性玄武岩的特征。
The spider diagram of trace element ratio and the REE distribution patterns show the characteristics of the island arc calc alkaline series.
岩相学特征表明，该火山群为典型的钙碱性系列玄武岩安山岩英安岩弧火山岩组合。
The (examination) of the petrography shows that the volcanic terrains in Tengchong are typical of the basalt - (andesite) - (dacite) arc volcanic rock associations of the calc-alkaline series.
它们属于同一钙碱性岩浆演化系列，其中高铝玄武岩是其它火山岩的母岩。
They include mainly high-alumina basalt, basaltic andesite, a few of andesite and dacite as well, belonging to calc alkaline series but somewhat tholeiitic series in the early stage.
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