The Pb isotopic features of the Jinshajiang ophiolitic melange display higher 208Pb/204Pb and 207Pb/204Pb ratios,implying a DUPAL anomaly,i. e. mantle signatures of Paleo-tethys.

• Pb同位素研究表明，金沙江蛇绿混杂岩具有相对较高的~(208)Pb/~(204)Pb和~(207)Pb/~(204)Pb，显示了具有DUPAL异常型的特征，类似于古特提斯的地幔特征。