科马提岩(Komatiite)是一种存量稀少的超基性火山岩,形成于地幔在熔融比例很高的状态下,其绝大多数的定年落在太古代(Archaean,在距今38亿到24亿年...
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basaltic komatiite 玄武镁绿岩 ; 玄武质科马提岩
komatiite e 科磨致岩
pyroxenic komatiite 辉岩质科马提岩
PERIDOTITIC KOMATIITE 橄榄镁绿岩
以上来源于: WordNet
Komatiite in the Sibao Group of northern Guangxi may be divided in ascending order into the cumulus zone, spinifex zone and chilled zone.
桂北四堡群的科马提岩,自下而上分为堆晶带、鬣剌带和冷凝带。
Only one ore sample is compositionally close to mantle inclusion, chondrite mantle or komatiite, indicating the property of deep mantle source.
仅有一件矿石样品与地幔包体、球粒陨石地幔或科马提岩接近,暗示其深部地幔源区的性质。
The komatiites were formed in Mesoproterozoic, in a tectonic environment of tensile crust, while ther ising komatiite magma was quenched a nd rapidly cooled.
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。
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