摘要
In this paper,the covalently-bound biomarkers and n-alkanes released from the Middle Devonian solid bitumen and two kerogens of the potential Devonian mudstone of trough facies in the Nanpanjiang Depression by catalytic hydropyrolsis were analyzed for GC-MS and GC-IRMS to clarify the origin of organic matter in the paleo-oil reservoirs.The results indicated that the Devonian mudstone of trough facies probably were the main source for the Dachang Middle-Devonian solid bitumen in Nandan area, Guangxi.