端砚微量元素地球化学特征研究

Geochemical characteristics of trace elements of the Duanxi Inkstone

端砚是国家地理标志产品,为更好地进行保护,采用ICP-MS详细研究了端砚的微量元素地球化学特征。结果显示,样品稀土元素含量高于全球平均大陆上地壳(UCC)和澳大利亚后太古宙页岩(PAAS)的平均值,稀土元素分布模式显示LREE富集、HREE平坦和中等Eu负异常的典型后太古宙沉积岩特征。样品过渡族元素Cr、Co和Ni含量较低,与UCC相近,稍低于PAAS;高场强元素Zr、Hf、Nb、Ta和Th含量则相对比它们在UCC和PAAS中的高。

To protect national landmark product, Duanxi Inkstone, this paper presents the trace element geochemical characteristics of the Duanxi Inkstone from Zhaoqing, Guangdong Province, by using ICP-MS. The results show that the samples have higher REE concentrations compared to UCC and PAAS. The REE patterns show LREE enrichment, flatted HREE and moderate negative Eu anomaly. Compared with UCC and PAAS, the samples are also rich in Zr, Hf, Nb, Ta, and Th, but lower in Cr, Co, and Ni.