The aliphatic fraction of Shuicheng boghead is characterized by the mixed source inputs of microbes and higher plants. The products of microbial source inputs, i. e. C21- n-alkanes. tricyclic terpanes, steranes, singl...The aliphatic fraction of Shuicheng boghead is characterized by the mixed source inputs of microbes and higher plants. The products of microbial source inputs, i. e. C21- n-alkanes. tricyclic terpanes, steranes, single-methyl branched alkanes, isoprenoid alkanes except phytane series, drimane series, tetracyclic terpanes and hopane type of triterpanes, amount to 52.4% of the aliphatic fraction, while hydrocarbons of higher plant source input, including C22+ alkanes and some sesquiterpenoids, account for 32.2%. In addition, the phytane series of photoautotrophic chlorophyll source input just make up 7.0% of the fraction.展开更多
By means of TLC, UV-Vis, HPLC and MS analyses, the types, structure and fingerprint distribution of porphyrin compounds in the nonmarine strata of China have been studied herein. It is revealed that the predominance o...By means of TLC, UV-Vis, HPLC and MS analyses, the types, structure and fingerprint distribution of porphyrin compounds in the nonmarine strata of China have been studied herein. It is revealed that the predominance of vanadyl porphyrin in lacustrine sediments of the Ordos Basin resulted from the high maturity, while the abnormal high content of Di-DPEP in the boghead-cannel coal from Guizhou Province was probably related to its abundant source input, the weakly oxidizing condition during the early diagenesis and the consequent reducing environment.展开更多
基金Project supported by the National Organic Geochemistry Key Laboratory, Chinese Academy of Sciences, Guangzhou.
文摘The aliphatic fraction of Shuicheng boghead is characterized by the mixed source inputs of microbes and higher plants. The products of microbial source inputs, i. e. C21- n-alkanes. tricyclic terpanes, steranes, single-methyl branched alkanes, isoprenoid alkanes except phytane series, drimane series, tetracyclic terpanes and hopane type of triterpanes, amount to 52.4% of the aliphatic fraction, while hydrocarbons of higher plant source input, including C22+ alkanes and some sesquiterpenoids, account for 32.2%. In addition, the phytane series of photoautotrophic chlorophyll source input just make up 7.0% of the fraction.
文摘By means of TLC, UV-Vis, HPLC and MS analyses, the types, structure and fingerprint distribution of porphyrin compounds in the nonmarine strata of China have been studied herein. It is revealed that the predominance of vanadyl porphyrin in lacustrine sediments of the Ordos Basin resulted from the high maturity, while the abnormal high content of Di-DPEP in the boghead-cannel coal from Guizhou Province was probably related to its abundant source input, the weakly oxidizing condition during the early diagenesis and the consequent reducing environment.
