On petrographic facies test, gravel sample mainly consists of quartz, albite, dolomite, and minor biotite;and sand sample is mainly made up of quartz and albite;
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释义
岩相法检测显示卵石样品主要由石英、钠长石及白云石和少量云母类矿物组成,砂样品主要由石英、钠长石等矿物组成,重要的碱活性物质玉髓主要出现在白云岩裂隙和硅质灰岩的基质中;
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