“…Total organic carbon (TOC) values in these rocks range from 3 to 30% with increased TOC values in the lower part of the succession, the MCM (Alqudah et al ., 2015; Hakimi et al ., 2016; März et al ., 2016; Abu‐Mahfouz et al ., 2019, 2020, 2022a, 2022b, 2023; Grohmann et al ., 2021, 2023). The rocks exhibit a complex diagenetic history (Powell & Moh'd, 2012; Hooker et al ., 2017; Huggett et al ., 2017), with an abundance of different diagenetic features (for example, chert beds, chert/carbonate concretions and early diagenetic folding).…”