Fig. 7 in Palynostratigraphic And Palaeoenvironmental Investigations Of The Maastrichtian From Oarda De Jos (Southwestern Transylvanian Basin)

Fig. 7. Gas chromatogram–mass spectrometry spectra from the Oarda de Jos sample, uppermost Cretaceous continental Sebeș Formation (a), and diverse cross-plots: b, c. - phytane/n-C18 versus pristane/n-C17 (b - after Shanmugam,1985; c - after Dziadzio and Matyasik, 2021), d, e. - Pr/Ph versus Pr/ n-C17 (d - after Yelwa et al., 2022; e. - after Zahra et al., 2015), f. - TOC versus TS (after Pontes et al., 2021), indicating the type of organic matter and depositional environment.