Advertisement

Chinese Science Bulletin

, Volume 51, Issue 13, pp 1628–1632 | Cite as

Identification and significance of 3β-alkyl steranes in the Eogene lacustrine sediments and petroleum of China

  • Wang Guangli Email author
  • Zhang Linye 
  • Wang Tieguan 
Articles

Abstract

Several homologous series of steranes with alkyl side chains (C1 to C4) at the 3β position have been identified in the Jiyang Eogene lacustrine deposition. It is postulated that its precursors represent a new class of steroids, alkylated at the C-3 position with a polyhydroxy n-alkane. These precursors may have been formed by the bacterial addition of a ribose sugar to Δ2-sterenes, diagenetic alteration products of steroids synthesized by eukaryotes. 3-alkyl steroids might substitute for hopanols in bacterial membranes. When they are present in a sample, the patterns of the isomer distributions of 3-alkyl steranes are similar to desmethyl steranes except for lower rearranged ones. It is shown that the configurational isomerization of 3-alkyl steranes is trending in line with that of desmethyl steranes with increasing of maturity. The abundance of 3-alkyl steranes may be controlled by the depositional environments; they are primary in saline or near shore lacustrine, moderate in shallow lacustrine, poor in sub-deep to deep lacustrine relative to the 4-methyl steranes.

Keywords

3-alkyl steranes lacustrine deposition GC-MS-MS Eogene Jiyang super-depression 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Volman J K, Kearney P, Jeffrey S W. A new source of 4-methyl sterols and 5α(H)-stanols in sediments: prymnesiophyte microalgae of the genus Pavlova. Organic Geochemistry, 1990, 15(5): 489–497CrossRefGoogle Scholar
  2. 2.
    Robinson N, Eglinton G, Brassell S C. Dinoflagellate origin for sedimentary 4α-methylsteroids and 5α-stanols. Nature, 1984, 308: 439–441CrossRefGoogle Scholar
  3. 3.
    Volman J K, Barrett S M, Dunstan G A, et al. Geochemical significance of the occurrence of dinosterol and other 4-methyl sterols in a marine diatom. Organic Geochemistry, 1993, 20(1): 7–15.CrossRefGoogle Scholar
  4. 4.
    Summons R E, Thomas J, Maxwell J R, et al. Secular and environmental constrains on the occurrence of dinosterane in sediments. Geochimica et Cosmochimica Acta, 1992, 56: 2437–2444CrossRefGoogle Scholar
  5. 5.
    Chen Zh, Zhou G, Alexander R. A biomarker study of immature crude oils from the Shengli oilfield, People’s Republic of China. Chemical Geology, 1994, 113: 117–132CrossRefGoogle Scholar
  6. 6.
    Hou D, Wang T G. Dinosteranes in terrestrial deposits and crude oils. Chin Sci Bull, 1995, 40(22): 1903–1906Google Scholar
  7. 7.
    Hou D, Huang Q, Huang F, et al. The characters of molecular geochemistry of marine transgression strata in Songliao Basin. Acta Petrolei Sinica (in Chinese), 1999, 20(2): 30–34Google Scholar
  8. 8.
    Hou D, Wang T G, Zhang Y, et al. Dinosteranes in the Tertiary lacustrine deposition in East china: the biomarkers of marine transgression? Geological Review (in Chinese), 1997, 43(5): 524–528Google Scholar
  9. 9.
    Moldowan J M, Talyzina N M. Biogeochemical evidence for dinoflagellate ancestors in the early Cambrian. Science, 1998, 281: 168–1170CrossRefGoogle Scholar
  10. 10.
    Moldowan J M, Dahl J, Jacobson S R, et al. Chemostratigraphic reconstruction of biofacies: Molecular evidence linking cyst-forming dinoflagellates with pre-Triassic ancestors. Geology, 1996, 24: 159–162CrossRefGoogle Scholar
  11. 11.
    Zhang S C, Moldowan J M, Li M, et al. The abnormal distribution of the molecular fossils in the pre-Cambrian and Cambrian: its biological significance. Sci Chin Ser D-Earth Sci, 2002, 45(3): 193–200CrossRefGoogle Scholar
  12. 12.
    Zhang S C, Wang F, Zhang B, et al. The geochemical study of upper Ordovician in the Tarim basin. Acta Petrolei Sinica (in Chinese), 2000, 21(6): 23–28Google Scholar
  13. 13.
    Zhang S C, Handson A D, Moldowan J M, et al. Paleozoic oil-source rock correlations in the Tarim basin, NW China. Organic Geochemistry, 2000 (31): 273–286Google Scholar
  14. 14.
    Zhang S C, Moldowan J M, Bian L Z, et al. Biological and molecular geochemical evidence for dinoflagellate ancestors in the upper Sinian-Cambrian. Acta Geologica Sinica, 2000, 74(4): 740–747Google Scholar
  15. 15.
    Hanson A D, Zhang S C, Moldowan J M, et al. Molecular organic geochemistry of the Tarim basin, Northwest China. AAPG, 2000, 84(8): 1109–1128Google Scholar
  16. 16.
    Summons R E, Capon R J. Fossil sterane with unprecedented methylation in ring-A. Geochimica et Cosmochimica Acta, 1988, 52: 2733–2736CrossRefGoogle Scholar
  17. 17.
    Summons R E, Capon R J. Identification and significance of 3β-ethyl steranes in sediments and petroleum. Geochimica et Cosmochimica Acta, 1991, 55: 2391–2395CrossRefGoogle Scholar
  18. 18.
    Dahl J, Moldowan J M, McCaffrey M A, et al. A new class of natural products revealed by 3β-alkyl steranes in petroleum. Nature, 1992, 355: 154–157CrossRefGoogle Scholar
  19. 19.
    Dahl J, Moldowan J M, Summons R E, et al. Extended 3β-alkyl steranes and 3-alkyl triaromatic steroids in crude oils and rock extracts. Geochimica et Cosmochimica Acta, 1995, 59: 3717–3729CrossRefGoogle Scholar
  20. 20.
    Ourisson G, Albrecht P, Rohmer M. The microbial origin of fossil fuels. Scientific American, 1984, 51: 709–729Google Scholar
  21. 21.
    Lopes J A D, Neto E V S, Mello M R, et al. 3-Alkyl and 3-carboxyalkyl staeranes in marine evaporitic oils of the Potiguar Basin, Brazil. Chemical Geology, 1999, 158: 1–20CrossRefGoogle Scholar
  22. 22.
    Peters K E, Moldowan J M. The Biomarkers Guide: Interpreting Molecular Fossils in Petroleum and Ancient Sediments. New York: Prentice Hall, 1993Google Scholar
  23. 23.
    Zhang L, Liu Q, Zhang Ch. Study on the Genetic Relationships between Hydrocarbon Occurrence and Pools Formation in Dongying Depression (in Chinese). Beijing: Geological Publishing House, 2005Google Scholar
  24. 24.
    Wang B, Qian K. Geological Research and Exploration Practice in Shengli Petroleum Province (in Chinese). Dongying: The Petroleum University Press, 1992Google Scholar
  25. 25.
    Sun Zh, Yang F, Zhang Zh, et al. The Salt Lake Depositional Environments and Oil Formation in Cenozoic of China (in Chinese). Beijing: Petroleum Industry Publishing House, 1997Google Scholar
  26. 26.
    Deng H, Qian K. Sediment Geochemistry and Environment Analysis (in Chinese), Lanzhou: Gansu Science and Technology Press, 1993, 18–28Google Scholar
  27. 27.
    Zhang L, Kong X, Zhang Ch, et al. High-quality oil-prone source rocks in Jiyang depression. Geochimica (in Chinese), 2003, 32(1): 35–42Google Scholar
  28. 28.
    Xu J, Pan Zh, Yang Y, et al. Dinoflagellates and acritarcha in the Eogene of Shengli Oilfield, Shandong Province, East China (in Chinese). Dongying: The Petroleum University Press, 1997Google Scholar

Copyright information

© Science in China Press 2006

Authors and Affiliations

  • Wang Guangli 
    • 1
    • 2
    Email author
  • Zhang Linye 
    • 2
  • Wang Tieguan 
    • 1
  1. 1.Key Laboratory for Petroleum Formation MechanismsPetroleum University of ChinaBeijingChina
  2. 2.Institute of Geological SciencesShengli Oilfield Co. LtdDongyingChina

Personalised recommendations