siliceous limestone

It mainly consists of spilite, keratophyre and volcanic clastics, intercalated with siliceous rocks, limestone and clastic rocks or lens.

主要由细碧岩、角斑岩及火山碎屑岩组成，其中有硅质岩、灰岩及碎屑岩夹层或凸镜体。

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The latter consisting of dark gray clastic limestone, chert beds, siliceous mudstone and massive reef and usually with graded bedding.

石灰岩建造常为黑色、灰黑色碎屑石灰岩、燧石层、粉砂质泥板岩和礁灰岩组成，常夹递变层理。

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According to the nature, Guangxi Limestone is separated into three types: pure limestone, siliceous limestone, mixed sand shale or limestone of igneous rock.

广西的石灰岩按性质可分为纯质石灰岩、夹硅质石灰岩、夹砂页岩或火成岩的石灰岩三种类型。

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The ore bodies which occur in typical geosynclinal flusch formation are mostly stratiform, stratoid, or in lenticular form. They are strictly controlled by siliceous limestone-layers of middle Carboniferous.

矿体主要呈层状、似层状或透镜状产于典型地槽复理石建造中，它们严格受中石炭纪硅质灰岩控制。

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