蛍光Ｘ線分析を利用した河川土砂礫のマクロ的な分布特性に関する基礎的検討

抄録

The purpose of this study is to clarify the elemental compositions of sand and stone in the rivers using the X-ray fluorescence analysis (XRF). The Kurobe, the Joganji, the Sho and the Oyabe Rivers were selected for this study. Total 379 samples of sand and rock of 4 rivers were analyzed and the spatial characteristics of sand and rock were clarified using the cluster analysis.

In the lower Kurobe River, the characteristics of the elementary compositions of the beach sand agreed with sand and stone which deposited in the Unazuki reservoir lake well.

egional distribution characteristics of sand and rock in the rivers could be clarified according to ultimate analysis by the XRF and the cluster analysis.