Geochemical characteristics and oil-source rock correlation in the Paleogene source rocks of the Qinnan Sag, Bohai Bay basin.

RSC Adv · 2025 · PMC12188642 · PMID 40567485

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a decreasing trendno p-value reported

Basic geochemical characteristics of source rocks The TOC content of the source rocks follows a decreasing trend in the order of Es 3 (0.17–3.85%, average 1.93%) > Es 1 (0.34–2.54%, average 1.41%) > Ed 3 (0.30–3.00%, average 1.19%).

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