Figure 6.

Concentrations of aromatic and saturated components of artificially matured Kimmeridge clay samples at different maturities of samples (A) M2, (B) M23, (C) E38, and (D) E40. Alkane: n-alkanes, isoprenoids, alkylcycloalkanes. Or AOM: orange AOM content (for the hopanes and steranes distributions, see the Supporting Information). The initial Or AOM increases from (A–D). Divisions of HC generation stages (dashed red lines) are based on R_c, Rock Eval parameters, and corresponding data form the literature.²⁹