Determinants of high gas content and restoration of in situ gas content in Permian Wujiaping shale of the eastern Sichuan Basin, China - Linchi Jiang; Jungang Lu; Benjian Zhang; Luchuan Zhang; Xiangdong Yin; Xiao Chen; Haofei Sun; Chang Xu; Lexin Yuan; Yibo Li; Xingcheng Zhu (Acta Geochimica, 2026)