There are 27 sedimentary cycles that are made up of aeolian facies and fluviolacustrine facies or palaeosol in Milanggouwan section in Salawusu River valley. The contents of Al2O3, TFe, Mn, TiO2, K2O, MgO, CaO and Na2O in the later two are higher than those in the former, and the contents of SiO2 take on converse change. It constitutes 27 element change cycles corresponding with above mentioned sedimentary cycles since 150 ka B.P. Based on the chemical migrating peculiarity of each element and the geomor...