komatiite
科马提岩
常用释义
英音[ kəˈmætɪaɪt ]
美音[ kəˈmætɪaɪt ]
基本释义
- n. 科马提岩；科磨致岩
例句
-
1·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。
-
2·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。
-
3·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。
-
4·Field geological survey and geochemistry indicate that the metamorphic ultrabasic rock in Jifeng area of the north Da Hinggan Ling Mountains is komatiite with spinifex texture.野外地质调查和室内岩石学研究表明，大兴安岭北段吉峰林场一带变质超基性岩为具有典型鬣刺结构的科马提岩。