...Junwen Peng; Xiongqi Pang; Hesheng Shi; Huijie Peng; Shuang Xiao ABSTRACT Upper Eocene Enping Formation mudstones in the Pearl River Mouth Basin, South China Sea, which formed during a lake-flooding event, are one of the most important sets of cap rocks in the basin. However, the generation...

..., is characterized by two thick, Paleogene, organic-rich synrift units, the Wenchang and Enping Formations. The integration of bulk geochemical and biomarker data with tectonic and sedimentary information provides the basis for a comprehensive assessment of the environmental and ecological changes through geologic...

.... Crude oil in the northern area of the Baiyun Sag is more mature than samples in the eastern part of the sag. Despite limited source rock data, we were able to conclude that the crude oil samples were derived mainly from the Enping Formation; other potential source rocks of the Wenchang and Zhuhai...

..., Qiongdongnan Basin (QDN), are from Hao et al. (1998 , 2000) . Coal-type gases from the Middle–Lower Jurassic coal measures in the Tarim, Junggar, and Turpan–Hami Basins and from the Upper Triassic Xujiahe Formation coal measure in the Sichuan Basin are from Dai et al. (2014) . (B) The mixing of the Enping...

.... In contrast, the gases from the PRM basin contain lower amounts of benzene and toluene and lighter δ 13 C 2 values (−24 to −34‰). Widely variable concentrations of bicadinane and oleanane were identified from the associated condensates, which can be mostly correlated with the lower Oligocene Enping Formation...

... the heavy hydrocarbon gases (propane, butanes, and pentanes) are derived from both the Wenchang and Enping (type III kerogen) Formations, based on an integrated comparison of carbon isotopic compositions of the natural gases, typical type I/II and type III kerogen-derived gases, and the Enping and Wenchang...

...Figure 15 —The dicardarane of oil and source rock of the Enping Formation in the Wenchang A sag (from Gong et al., 1997 ). ...