Biomarkers in the Pyrolysis Products of Asphaltenes from Ancient Grude Oils of East Siberia as Indicators of Source Rock Depositional Environment

摘要

The hydrocarbon composition of the pyrolysis products of asphaltenes isolated from ancient crude oils of East Siberia was determined by the gas chromatography-mass spectrometry technique and was compared with that for Oman oils. The study resulted in the conclusion that the source rocks of both East Siberia and Oman had been deposited under identical facial conditions with similar compositions of source biota.