深海稀土中泥级组分工艺矿物学研究

    Process Mineralogy of Mud Fraction in Deep Sea Rare Earth

    • 摘要: 这是一篇工艺矿物学领域的论文。深海稀土是继多金属结核、富钴结壳和多金属硫化物之后的第四种深海矿产资源,本文以西太平洋深海沉积物稀土中的泥级组分为研究对象,查明了样品沉积物类型为中等品位的深海黏土,在泥级样品中主要的元素是Al、Si、Fe、Mn、Na、Mg、K等,主要的矿物相为非晶质石英、长石、黏土矿物(伊利石(11.4%)、蒙脱石(16%)、斜绿泥石(20%))和钙十字沸石。样品蒙脱石/伊利石比值为1.40,暗示着可能受到了火山物质的影响,泥级组分中多由黏土矿物和非晶质石英形成的团聚颗粒集合体组成,微细粒磷灰石颗粒在集合体中呈星点状嵌布,并且REY可能主要富集于磷灰石颗粒中。

       

      Abstract: This is an essay in the field of process mineralogy. Deep sea rare earths are the fourth deep-sea mineral resource after polymetallic nodules, cobalt rich crusts and polymetallic sulphides. Taking the mud grade components of deep-sea sediments in the Western Pacific as the research object, this paper finds out that the sediment type of the sample is medium-grade deep-sea clay sediment, and the main elements in the mud grade samples are Al, Si, Fe, Mn, Na, Mg, K, etc, The main mineral phases are amorphous quartz, feldspar, clay minerals (illite (11.4%), montmorillonite (16%), clinoptilolite (20%) and calcium cruciform zeolite. The M/I ratio of the sample is 1.40, suggesting that it may be affected by volcanic materials. The mud fraction is mostly composed of aggregate particles formed by clay minerals and amorphous quartz. The fine apatite particles are embedded in the aggregate in a star shape, and REY may be mainly enriched in apatite particles.

       

    /

    返回文章
    返回