本文研究的科马提岩位于大兴安岭北段吉峰地区。
The Jifeng komatiites are situated in the north Da Hinggan Ling.
吉峰拉马提岩的形成时代为中元古代，其形成环境可能是地壳拉伸减薄，上涌的科马提质岩浆在淬火 快速 冷却的条件下形成。
The komatiites were formed in Mesoproterozoic, in a tectonic environment of tensile crust, while ther ising komatiite magma was quenched a nd rapidly cooled.
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