1. Adam P, Schmid J C, Albrecht P. 1991. 2α and 3β steroid thiols from reductive cleavage of macromolecular petroleum fractions. Tetrahedron Lett, 32: 2955–2958
2. Bao J P, Ma A L, Li X Q. 2006. Geochemistry for the Immature-lower Mature Crude Oils in Chinese Saline Basins (in Chinese). Beijing: Geological Publishing House, 194
3. Chen T S, Liu J, Lu H, et al. 2009. Identification and occurrence of C22-C27 sterenes and C24-C30 tetra-cyclic terpanes in the immature evaporitic sediments in the Jinxian Sag (in Chinese). Geochemistry, 38: 289–298
4. Cui Y Q, Zhang F, Wang H. 1998. Reservoir characterization for the heavy oils in the Nanguzhuang Anticline in the Jinxian Sag (in Chinese). Spec Oil Gas Reserv, 5: 6–9
5. de Graaf W, Sinninghe Damsté J S, de Leeuw J W. 1992. Laboratory simulation of natural sulphurization I. Geochim Cosmochi Acta, 56: 4321–4328