Europa is fascinating, mostly silicate rock with an ice crust.
欧罗巴是迷人的，主要是硅酸盐岩石和冰壳。
The rock of Roraima, however, is mostly silicate, which is also found on Mars.
而罗赖马洞穴的石头却主要是硅酸盐，火星上发现的也是硅酸盐。
The dry land of the continents consists mostly of granite and other light silicate minerals, while the ocean floors are made up mostly of a dark, dense volcanic rock called basalt.
陆地地壳主要由花岗岩和其它轻质硅酸盐矿物构成，而海底则主要由黑色的高密度火山岩——玄武岩构成。
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