V/Fe大致从底部到顶部逐渐降低，与S具有相反的变化趋势，可用来指示F

V/Fe gradually decreases from the bottom to the top. It has the opposite trend with S, which can be used to indicate the ratio of Fe-oxyhydroxides and Fe-sulfides. Low V/Fe and S appear in layers 8-11cm and 23-25cm. The high value peak indicates that these two layers are rich in Fe-Sulfide, which is consistent with the greenish brown color of these two layers.

V/Fe is approximately decreasing from bottom to top, and has an opposite trend of change with S, which can be used to indicate the proportion of Fe-oxyhydroxides and Fe-sulfides, with V/Fe low and S high peaks at layers 8-11cm, 23-25cm, indicating that these two layers of Rich Fe-Sulfide are in line with the brownofe of both layers.

V / Fe decreased gradually from the bottom to the top, which had the opposite trend with S. it can be used to indicate the proportion of Fe oxyhydroxides and Fe sulfides. In the 8-11cm and 23-25cm layers, V / Fe low value and s high value peaks appeared, indicating that these two layers are rich in Fe sulfides, which is consistent with the green brown of these two layers.