V/Fe大致从底部到顶部逐渐降低，与S负相关，可用来指示Fe-oxyh

V/Fe gradually decreases from the bottom to the top, and is negatively correlated with S. It can be used to indicate the ratio of Fe-oxyhydroxides and Fe-sulfides. Low V/Fe and high S peaks appear in layers 8-11cm and 23-25cm. , Indicating that these two layers are rich in Fe-Sulfide, which is consistent with the green-brown color of these two layers.

V/Fe approximately decreases from bottom to top, and is negatively correlated 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 are rich Fe-Fi Sulde, which is consistent with the green-brown ness of both layers.

V / Fe decreased gradually from the bottom to the top, which was negatively correlated with s, and could be used to indicate the proportion of Fe oxyhydroxides and Fe sulfides. There were low V / Fe and high s peaks in the 8-11cm and 23-25cm layers, indicating that the two layers were rich in Fe sulfides, which was consistent with the green brown of the two layers.<br>