知识与财富的链接
钪（Sc）及其化合物性能优异,在我国科技军事等领域得到广泛应用,被列为我国战略性矿产。在云南大理峨眉山玄武岩风化壳中发现Sc异常富集,其平均含量为43.7 μg/g,相当于钪氧化物（Sc2O3）含量为67.01 μg/g,其中玄武岩风化形成的红褐色黏土层中Sc2O3含量更高,平均值为81.31 μg/g,达到独立钪矿品位。对Sc富集机理初步分析发现,来自母岩的Sc在风化过程中因迁移能力较低,在风化产物中相对富集。峨眉山玄武岩在云、贵、川分布广泛,玄武岩风化壳是潜在的Sc矿找矿方向。
Scandium (Sc) and its compounds have been widely used in scientific, technology and military fields due to the excellent properties, thus Sc has been listed as strategic mineral resource in China. The Sc was found enriched in the weathering crust of the Emeishan basalt in Dali, Yunnan Province, specifically, the average content of Sc is 43. 7 μg/g, which is equivalent to scandium oxide (Sc2O3) of 67. 01 μg/g. The content of Sc2O3 in the reddish-brown clay layer within the weathering crust is relatively higher at 81. 31 μg/g, which reaches the industrial grade of Sc deposit. Sc derived from the parent rock Emeishan basalt is enriched in the weathering products probably due to its low migration ability in the weathering process. Since the Emeishan basalt distributes widely in the Yunnan, Guizhou and Sichuan area, SW China, the Sc-rich basalt weathering crust may become a potential Sc source.
