Supplementary data to publication: "Insights into chemostratigraphy of the Polish Rotliegend: integration of geochemical, mineralogical and sedimentological data from the Poznań Basin"

Appendix 1 - Chemical composition of the sandstone samples from two wells - P2 and P4. Results obtained by ICP-OES and ICP-MS methods, preceded by lithium borate fusion. Analysis provider - ActLabs (Canada); analytical programme used WRA_ICP - 4Litho.
Appendix 2 - Mineral composition of sandstone samples from two wells - P2 and P4. Data obtained by quantitative XRD analysis. XRD run on the X-Pert Pro (Panalytical) diffractometer. Software used for qXRD was SiroQuant v. 3.
Appendix 3 - Correlation matrix of the selected main and trace element composition, further used to establish element-mineral links.