Tuffite is formed by the combination of volcanic ashes and carbonate mud.
沈积凝灰岩主要为中远源的火山灰与碳酸盐灰泥混合而成,含石英团块,显斑点构造.
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The main kinds of rocks include carbonate rocks , tuffite, siliceous rocks and quartz sand - stone.
主要岩石类型包括碳酸盐岩、沈积凝灰岩 、 矽质岩和石英砂岩.
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