The main kinds of rocks include carbonate rocks, tuffite, siliceous rocks and quartz sand-stone.
主要型包括碳酸盐、沈积凝灰、质和英砂。
The host rock conformably overlies a band of siliceous chertybrecia.
含矿主整覆于硅质燧角砾带之。
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Few objects are more beautiful than the minute siliceous cases of the diatomaceae: were these created that they might be examined and admired under the higher powers of the microscope?
很少有比硅藻科的小硅质外壳更美:这些是为了在更高倍数的下进行检查和欣赏而创造的吗?
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