supported by the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDA20070101);the National Natural Science Foundation of China(Grant Nos.41690113&41888101);the National Key Research and Development Program of China(Grant No.2016YFA0600501)。
The X-ray fluorescence(XRF)core-scanned Rb/Sr ratios of lake sediments have been widely used as a proxy for chemical weathering intensity and past climate change.However,some factors could affect Rb/Sr ratios,causing ...