Geochemical characteristics， distribution， and shale oil resource potential of source rocks in the 8th and 9th oil groups of the Yanchang Formation， northern Shaanxi， Ordos Basin
Lei CAO, Xinzhi YAN, Hui LI, Weitao WU, Yubin BAI, Zilong ZHAO
Oil & Gas Geology . 2025, (5): 1410 -1429 .  DOI: 10.11743/ogg20250503