夏威夷岩(Hawaiite)又称为橄榄中长玄武岩(olivine andesine basalt)。 这一术语原先定义为含橄榄石玄武岩的变种,其中标准矿物长石为更长石或中长石。指按化学成分分类位于TAS图解S1区中的一种钠质粗面玄武岩。该术语源自夏威夷地名而命名。
另外,研究者发现这里的岩浆的成分是英安岩而不是构成夏威夷主体的玄武岩。英安岩是花岗岩的前身。
In addition, researchers found that the magma is made of dacite, a type of rock that's a precursor to granite.
洋岛玄武岩以弄槐枕状熔岩为代表性火山岩,原为古特提斯洋盆中的夏威夷型洋岛,现保存在印支期前陆褶皱冲断带的一个外来岩席中。
The oceanic island basalt is represented by the Nonghuai pillow lava, which is, originally Hawaii type one in the Paleotethyan ocean, an allochthon in the Indosinian foreland fold and thrust belt.
纳弗沙岛上巨大的石灰岩悬崖耸立海面上,是美国在海外持续拥有的最古老岛屿,比关达那摩、维京岛、夏威夷和阿拉斯加还要古老。
Navassa, its enormous limestone cliffs rising straight out of the sea, is the oldest continuous overseas possession of the United States, older than Guantanamo, the Virgin Islands, Hawaii, and Alaska.
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