Ce and Eu anomalies in weathered layers can be associated with weathering process and initial REE contents in the host rock. Lateritization process has increased REE content by more than four times compared to that in the Muncung Granite.
The average REE content of the Muncung Granite is 265 ppm with Eu anomaly in REE’s spider diagrams.
ICP-MS was applied to measure the REE content in all samples of this study. REE occurs in the Muncung Granite and in weathered layers (saprolite, laterite, and soil). Muncung Granite is located in a tropical area of Lingga Regency, Riau Islands Province. Lateritic process can increase REE concentration from sub-economic levels in host rocks to be more valuable. REE can occur in igneous and sedimentary rocks in significant amounts as primary deposits, whereas the secondary REE deposit can be produced by intensive lateritic weathering of bedrocks under the tropical or subtropical climate. The increasing demand for Rare Earth Elements (REE) is related to the continous development of technology, and these elements are used in modern equipments.
0 kommentar(er)
