Rina D.W.I. Indriana, Hijrah Saputra, Mariyanto Mariyanto, Eleonora Agustin, Mimin Iryanti, Cahyo A.J.I. Hapsoro
Mud volcano material is generally rich in oxides, while oxides are the main compounds forming rare earth elements. Bledug Kuwu, Central Java, Indonesia, is one of the active mud volcanoes, so there may be rare earth elements. This research is the characterization of rare earth elements (REE) in the Bledug Kuwu mud using magnetic and geochemical methods. Magnetic characterization uses magnetic susceptibility measurements. The geochemical characterization of the mud samples consisted of the XRF (X-Ray Fluorescence), XRD (X-Ray Diffraction), ICP-EOS (inductively coupled plasma) test, and the SEM-EDS (Scanning Electron Microscopy-Energy Dispersive X-Ray Spectroscopy) test. The results of the geochemical analysis of the Bledug Kuwu mud sample were the content of quartz, kaolinite, and calcite with an average concentration of 42.26%, 23.67%, and 33.96%. The susceptibility of Kuwu's mud is 0 because the concentration of metal elements is low; according to the results of XRF, XRD, and SEM tests identified the main mud elements as C, O, Si, Ca, and Al. The rare earth elements in Kuwu's mud are Ce, Dy, Eu, Gd, Ho, La, Nd, Pr, Sm, Tb, Y, and Sc. The highest concentrations were Ce 52.22 ppm and La 47.95 ppm. © 2023 Penerbit Universiti Kebangsaan Malaysia. All rights reserved.
Department of Physics, Faculty of Science and Mathematics, Diponegoro University, Indonesia; Postgraduate School, Universitas Airlangga, Surabaya, Indonesia; Department of Geophysical Engineering, Faculty of Civil, Planning and Geo-Engineering, Institut Teknologi Sepuluh Nopember, Indonesia; Department of Geophysics, Faculty of Mathematics and Natural Science, Padjadjaran University, Bandung, Indonesia; Department of Physics, Faculty of Education of Mathematics and Natural Science, Universitas Pendidikan Indonesia, Bandung, Indonesia; Department of Physics, Faculty of Mathematics and Natural Science, Universitas Negeri Malang, Malang, Indonesia
