A lot of enclaves named spinel lherzolite and pyroxenite derived from the mantle were fount in alkali basalt of Miocene Naitoushan period.

 
  • 其中奶頭山期堿性玄武巖中含有幔源的尖晶石二輝橄欖巖包體和輝石巖包體。
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