The Tianshan basalts may result from a mantle plume.
天山玄武巖可能是產(chǎn)生于地幔柱頭.
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The basalts were intruded by numerous silica dykes, some of which terminate in the sedimentary layers.
玄武巖被無數(shù)的二氧化硅礦脈侵入, 其中一些終止于沉積巖層.
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Yingcheng group's volcanic rocks in Shengping field areof rhyolites, andesites, basalts, felsites and volcanic fragmental rocks.
升平氣田白堊系營城組火山巖主要為流紋巖 、 安山巖 、 玄武巖 、 霏細巖及火山碎屑巖.
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