Natural asphalts from carbonate rocks in South China have been studied by using microscopy, X-ray diffraction, ESR and C^-, H^- analysis and subjeeted to therma
According to Sakai-Ohmoto's theory regarding the evolution of sulfur isotope in hydrothermal system, by using new data on chemical reaction equilibrium cons
Taking the oil-generating formations in the Dongying basin as the objective of study, this paper deals with the relations among petroporphyrin, lithology, oxida