Appendix 1: TOC, major element and trace element analysis results of samples from the Wufeng and Longmaxi formations; Appendix 2: Ash correction calculation results for the study area based on ash data from this and previous studies.
Appendix 1: TOC, major element and trace element analysis results of samples from the Wufeng and Longmaxi formations; Appendix 2: Ash correction calculation results for the study area based on ash data from this and previous studies.