山东省近海砂矿资源类型划分及开发前景

山东省近海砂矿是仅次于油气的第二大近海矿产 ,目前已发现滨海海砂矿 10多种 ,各类砂矿床近 80个 ,初步查明具有工业价值的有锆石、建筑用砂、型砂、石英砂、贝壳、球石、砂金 7种。近海砂矿主要是在海水动力条件下由于机械沉积分异作用 ,使陆源碎屑中的有用矿物富集而成的。海洋砂矿开发具有高投资、高风险、高收益的特点 ,开发前应充分论证海洋环境影响和采选技术条件 ,审慎地进行选区和可行性论证 ,避免盲目勘查、开发。

Types and Exploration Future of Offshore Sand Mineral Resource in handong Province

Sand mineral resource is the second largest offshore mineral resource in Shandong province, which is only next to oil and gas mineral resources. More than 10 kinds offshore sand mineral resources and nearly 80 sand deposits have been found in Shandong province. 7 kinds are primarily proved to have industrial value, such as zink, building sand, style-building sand, quartz sand, shell, ballstone and free gold. Offshore sand deposit is formed by concentration of useful minerals under sea dynamic condition. Exploration of oceanic snad deposit has the characteristics of high envestment, high risk and high gain. Ocean environmental effects, exploring and collecting condition, area selecting and exploration possibility should be proved carefully before exploration.