Separated from the deposit and scattered on the river side of the foundation rock, and gradually be covered with sand, forming alluvial sand.
自矿床分离而散落于溪旁基础岩石上，逐步被沙土覆盖，形成冲积性砂。
Separated from the deposit and scattered on the river side of the foundation rock, and gradually be covered with sand, forming alluvial sand.
自矿床分离而散落于溪旁基础岩石上，逐步被沙土覆盖，形成冲积性砂。
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