Abstract
Lower Cretaceous Sindong and Hayang mudrocks in the Gyeongsang Basin, Korea, have been analyzed for major and trace elements, including the rare earth elements (REEs). The Sindong mudrocks are relatively enriched in most large-ion lithophile (LIL) elements such as K2O, Rb, Ba, Zr, Th and LREE than the Hayang mudrocks, and they are more depleted in Fe2O3 (total), MgO, MnO, CaO, Na2O, Sr, Cu, Zn and Mo compared with the Hayang mudrocks. The REE distribution patterns indicate that the Sindong and Hayang mudrocks are largely derived from upper continental source rocks. The differences in chemistry between the two groups mainly reflect the occurrence of intermediate to silicic volcanics in the source area during the deposition of the Hayang Group.
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Lee, J.I., Lee, Y.I. Geochemistry and provenance of Lower Cretaceous Sindong and Hayang mudrocks, Gyeongsang Basin, Southeastern Korea. Geosci J 7, 107–122 (2003). https://doi.org/10.1007/BF02910213
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DOI: https://doi.org/10.1007/BF02910213