ultra-basic rocks

• 超基性岩

ultra-basic rocks的用法和样例：

例句

1. The ultrabasic rocks form a complex of large tectonic slices with intercalated slices of Sebakwian sedimentary rocks.
   超基性岩与塞巴奎沉积岩岩片相间构成一巨大的构造岩片的杂岩体。