Local distribution of the hematite content in a fine sediments of Bengawan Solo river

In this study, a local-distribution of the fine sediments Bengawan Solo river is discussed. Magnetic oxide of a hematite is a focus investigation. The fine sediment are collected from 5 sampling location and following heating treatment. The obtained samples are characterised the composition by x-ray fluorosence, the crystalline structure by x-ray diffractometer and magnetic property with vibrating sample magnetometer. The different hematite content of the XRF analisis indicates that the physical mechanism of hematite-forming is sensitive to the precipitation process. The XRD result indicate that the nano powder hematite spreads homogeneously for restricted areas. Furthermore, the VSM result indicated that quality hematite at location 5 much better than location 2, although it is less available. The very small of the saturated magnetization at location 2 should be attribute the significant impurities that lowering the saturated magnetization.