One is mixed equation diagram of pairs of elements and element ratios, and theother is element concentration difference diagram of contaminated rock and contaminatedminal.

A study of elemental correlation and elemental variation in different layers of the Co-rich crusts from the Mid-Pacific WM1 and WX seamounts;

The major constituent analytical model was established, meanwhile the trace elements major constituent analysis and the major constituent interpretation for groundwater were performed according to the element correlation, the eigenvalue and the progressive total variance contributing rate.