Abstract

Sediment samples were taken from the River Gora bed for study of the distribution of rare earth and trace elements with respect to their possible origin. The study area lies between latitude 9⁰ 33^’N and 9⁰ 35’N and longitude 6⁰ 34’E and 6⁰ 35^’E. Rare earth and trace elemental compositions of the samples were analyzed using X-Ray Fluorescence spectrometry Epsilon-5 Panalytical model. The Pearson positive correlation of La/Yb, Ce/Ce*, Eu/Eu*, LREE/HREE, the downstream spatial variations of La, Ce, Nd, Sc, Y, Eu, Mo, Zr, Pb, and Co, in addition to the normalized Chondrite plot of the rare earth elements in the study area revealed high erosional rate, terrigenous river sediments input and lithologically controlled distribution from crystalline Basement source rock because the Eu/Eu* gave positive anomaly with less pronounced anthropogenic input. The positive anomaly of Ce/Ce* revealed two component system of fine- and coarse- grained terrigenous input.

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