Original ResearchPublished 12 October 2026Effects of pressure on the stable carbon isotope composition of gas generated from continental type-I and type-III kerogen under semi-closed conditionsYanju Li · Hao Yang · Zhonghong Ning · Shengling Jiang · Biyang Feng · Xiulan Zhu · Wanchang Zhang · Xianghe MaFrontiers in Earth Sciencedoi 10.3389/feart.2026.1861447